Cooperative Patent Classification

Indent Level

Version: 2016.11
CPC
COOPERATIVE PATENT CLASSIFICATION
F01L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES (valves in general F16K) [2016-05]
NOTES

Valve-gear for internal combustion piston engines or for other machines or engines with positive working-fluid displacement (valve gear specially for steam engines or specially for other machines or engines with variable fluid distribution F01L 15/00 - F01L 35/00) [2016-05]
F01L 1/00
Valve-gear or valve arrangements, e.g. lift-valve gear (lift-valve and valve-seat assemblies per se F01L 3/00; slide-valve gear F01L 5/00; actuated non-mechanically F01L 9/00; valve arrangements in working piston or piston rod F01L 11/00; modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations F01L 13/00) [2013-01]
F01L 1/02
.
Valve drive (transmitting-gear between valve drive and valve F01L 1/12) [2013-01]
F01L 1/022
. .
{Chain drive} [2013-01]
F01L 1/024
. .
{Belt drive} [2013-01]
F01L 1/026
. .
{Gear drive} [2013-01]
F01L 2001/028
. .
{Pre-assembled timing arrangement, e.g. located in a cassette} [2013-01]
F01L 1/04
. .
by means of cams, camshafts, cam discs, eccentrics or the like (F01L 1/10 takes precedence) [2013-01]
F01L 1/042
. . .
{Cam discs} [2013-01]
F01L 1/044
. . .
{Reciprocating cams} [2013-01]
F01L 1/047
. . .
Camshafts [2013-01]
F01L 2001/0471
. . . .
{Assembled camshafts, e.g. "gebaute Nockenwelle"} [2013-01]
F01L 2001/0473
. . . . .
{Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod} [2016-08]
F01L 2001/0475
. . . .
{Hollow camshafts (F01L 2001/0473 takes precedence)} [2013-01]
F01L 2001/0476
. . . .
{Camshaft bearings} [2013-01]
F01L 2001/0478
. . . .
{Torque pulse compensated camshafts} [2013-01]
F01L 1/053
. . . .
overhead type [2013-01]
F01L 1/0532
. . . . .
{the cams being directly in contact with the driven valve} [2013-01]
F01L 2001/0535
. . . . .
{Single overhead camshafts [SOHC]} [2013-01]
F01L 2001/0537
. . . . .
{Double overhead camshafts [DOHC]} [2013-01]
F01L 2001/054
. . . .
{Camshafts in cylinder block} [2013-01]
F01L 1/06
. . .
the cams, or the like, rotating at a higher speed than that corresponding to the valve cycle, e.g. operating fourstroke engine valves directly from crankshaft [2013-01]
F01L 1/08
. . .
Shape of cams [2013-01]
F01L 1/10
. .
by means of crank-or eccentric-driven rods {(F01L 1/044 takes precedence)} [2013-01]
F01L 1/12
.
Transmitting gear between valve drive and valve (simultaneously operating two or more valves F01L 1/26) [2013-01]
F01L 1/14
. .
Tappets {(hydraulic tappets for automatically adjusting or compensating clearance F01L 1/24)}; Push rods [2013-01]
F01L 1/143
. . .
{for use with overhead camshafts} [2013-01]
F01L 1/146
. . .
{Push-rods} [2013-01]
F01L 1/16
. . .
Silencing impact; Reducing wear [2013-01]
F01L 1/18
. .
Rocking arms or levers [2013-01]
F01L 1/181
. . .
{Centre pivot rocking arms} [2013-01]
F01L 1/182
. . . .
{the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft} [2013-01]
F01L 1/183
. . . . .
{of the boat type} [2013-01]
F01L 1/185
. . .
{Overhead end-pivot rocking arms} [2013-01]
F01L 2001/186
. . .
{Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison} [2013-01]
F01L 2001/187
. . .
{Clips, e.g. for retaining rocker arm on pivot} [2013-01]
F01L 2001/188
. . .
{Fulcrums at upper surface} [2013-01]
F01L 1/20
.
Adjusting or compensating clearance [2013-01]
F01L 1/205
. .
{by means of shims or the like} [2013-01]
F01L 1/22
. .
automatically, e.g. mechanically [2013-01]
F01L 1/24
. . .
by fluid means, e.g. hydraulically [2013-01]
F01L 1/2405
. . . .
{by means of a hydraulic adjusting device located between the cylinder head and rocker arm} [2013-01]
F01L 1/2411
. . . .
{by means of a hydraulic adjusting device located between the valve stem and rocker arm} [2013-01]
F01L 1/2416
. . . .
{by means of a hydraulic adjusting device attached to an articulated rocker} [2013-01]
F01L 1/2422
. . . .
{by means or a hydraulic adjusting device located between the push rod and rocker arm} [2013-01]
F01L 2001/2427
. . . .
{by means of an hydraulic adjusting device located between cam and push rod} [2013-01]
F01L 2001/2433
. . . .
{Self contained, e.g. sealed hydraulic lash adjusters} [2013-01]
F01L 2001/2438
. . . .
{with means permitting forced opening of check valve} [2013-01]
F01L 2001/2444
. . . .
{Details relating to the hydraulic feeding circuit, e.g. lifter oil manifold assembly [LOMA]} [2013-01]
F01L 1/245
. . . .
Hydraulic tappets [2013-01]
F01L 1/25
. . . . .
between cam and valve stem [2013-01]
F01L 1/252
. . . . . .
{for side-valve engines} [2013-01]
F01L 1/255
. . . . .
between cam and rocker arm [2013-01]
F01L 2001/256
. . . . .
{between cam and push rod} [2013-01]
F01L 1/26
.
characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder (with coaxial valves F01L 1/28) [2013-01]
F01L 1/262
. .
{with valve stems disposed radially from a centre which is substantially the centre of curvature of the upper wall surface of a combustion chamber (F01L 1/265 takes precedence)} [2013-01]
F01L 1/265
. .
{peculiar to machines or engines with three or more intake valves per cylinder} [2013-01]
F01L 1/267
. .
{with means for varying the timing or the lift of the valves} [2013-01]
F01L 1/28
.
characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports [2013-01]
F01L 1/285
. .
{Coaxial intake and exhaust valves} [2013-01]
F01L 1/30
.
characterised by the provision of positively opened and closed valves, i.e. desmodromic valves [2013-01]
F01L 1/32
.
characterised by the provision of means for rotating lift valves, e.g. to diminish wear [2013-01]
F01L 1/34
.
characterised by the provision of means for changing the timing of the valves without changing the duration of opening {and without affecting the magnitude of the valve lift} [2013-01]
F01L 1/344
. .
changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear [2013-01]
F01L 1/34403
. . .
{using helically teethed sleeve or gear moving axially between crankshaft and camshaft} [2013-01]
F01L 1/34406
. . . .
{the helically teethed sleeve being located in the camshaft driving pulley} [2013-01]
F01L 1/34409
. . .
{by torque-responsive means} [2013-01]
F01L 1/34413
. . .
{using composite camshafts, e.g. with cams being able to move relative to the camshaft} [2013-01]
F01L 1/34416
. . .
{using twisted cams} [2013-01]
F01L 1/3442
. . .
{using hydraulic chambers with variable volume to transmit the rotating force} [2013-01]
F01L 2001/34423
. . . .
{Details relating to the hydraulic feeding circuit} [2013-01]
F01L 2001/34426
. . . . .
{Oil control valves} [2013-01]
F01L 2001/3443
. . . . . .
{Solenoid driven oil control valves} [2013-01]
F01L 2001/34433
. . . . . .
{Location oil control valves} [2013-01]
F01L 2001/34436
. . . . .
{Features or method for avoiding malfunction due to foreign matters in oil} [2013-01]
F01L 2001/3444
. . . . . .
{Oil filters} [2013-01]
F01L 2001/34443
. . . . . .
{Cleaning control of oil control valves} [2013-01]
F01L 2001/34446
. . . . .
{Fluid accumulators for the feeding circuit} [2013-01]
F01L 2001/3445
. . . .
{Details relating to the hydraulic means for changing the angular relationship} [2013-01]
F01L 2001/34453
. . . . .
{Locking means between driving and driven members} [2013-01]
F01L 2001/34456
. . . . . .
{Locking in only one position} [2013-01]
F01L 2001/34459
. . . . . .
{Locking in multiple positions} [2013-01]
F01L 2001/34463
. . . . . .
{Locking position intermediate between most retarded and most advanced positions} [2013-01]
F01L 2001/34466
. . . . . .
{with multiple locking devices} [2013-01]
F01L 2001/34469
. . . . . .
{Lock movement parallel to camshaft axis} [2013-01]
F01L 2001/34473
. . . . . .
{Lock movement perpendicular to camshaft axis} [2013-01]
F01L 2001/34476
. . . . . .
{Restrict range locking means} [2013-01]
F01L 2001/34479
. . . . .
{Sealing of phaser devices} [2013-01]
F01L 2001/34483
. . . . .
{Phaser return springs} [2013-01]
F01L 2001/34486
. . .
{Location and number of the means for changing the angular relationship} [2013-01]
F01L 2001/34489
. . . .
{Two phasers on one camshaft} [2013-01]
F01L 2001/34493
. . . .
{Dual independent phasing system [DIPS]} [2013-01]
F01L 2001/34496
. . . .
{Two phasers on different camshafts} [2013-01]
F01L 1/348
. . .
by means acting on timing belts or chains [2013-01]
F01L 1/352
. . .
using bevel or epicyclic gear [2013-01]
F01L 2001/3521
. . . .
{Harmonic drive of flexspline type} [2013-01]
F01L 2001/3522
. . . .
{with electromagnetic brake} [2013-01]
F01L 1/356
. . .
making the angular relationship oscillate, {e.g. non-homokinetic drive} [2013-01]
F01L 1/36
.
peculiar to machines or engines of specific type other than four-stroke cycle [2013-01]
F01L 1/38
. .
for engines with other than four-stroke cycle, e.g. with two-stroke cycle (F01L 1/26, F01L 1/28 take precedence) [2013-01]
F01L 1/40
. .
for engines with scavenging charge near top dead centre position, e.g. by overlapping inlet and exhaust time (scavenging aspects F02B) [2013-01]
F01L 1/42
. .
for machines or engines characterised by cylinder arrangements, e.g. star or fan [2013-01]
F01L 1/44
.
Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves [2013-01]
F01L 1/443
. .
{comprising a lift valve and at least one rotary valve} [2013-01]
F01L 1/446
. .
{comprising a lift valve and at least one reed valve} [2013-01]
F01L 1/46
.
Component parts, details, or accessories, not provided for in preceding subgroups [2013-01]
F01L 1/462
. .
{Valve return spring arrangements} [2013-01]
F01L 1/465
. . .
{Pneumatic arrangements} [2013-01]
F01L 2001/467
. .
{Lost motion springs} [2013-01]
F01L 3/00
Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof [2013-01]
F01L 3/02
.
Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials [2013-01]
F01L 3/04
. .
Coated valve members or valve-seats [2013-01]
F01L 3/06
.
Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge (for rotating lift-valves F01L 1/32) [2013-01]
F01L 3/08
.
Valves guides; Sealing of valve stem, e.g. sealing by lubricant [2013-01]
F01L 3/085
. .
{Valve cages} [2013-01]
F01L 3/10
.
Connecting springs to valve members [2013-01]
F01L 2003/11
.
{Connecting valve members to rocker arm or tappet} [2013-01]
F01L 3/12
.
Cooling of valves [2013-01]
F01L 3/14
. .
by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve [2013-01]
F01L 3/16
. .
by means of a fluid flowing through or along valve, e.g. air (for sealing only F01L 3/08) [2013-01]
F01L 3/18
. . .
Liquid cooling of valve [2013-01]
F01L 3/20
.
Shapes or constructions of valve members, not provided for in preceding subgroups of this group [2013-01]
F01L 3/205
. .
{Reed valves} [2013-01]
F01L 3/22
.
Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats [2013-01]
F01L 3/24
.
Safety means or accessories, not provided for in preceding sub- groups of this group [2013-01]
F01L 2003/25
.
{Valve configurations in relation to engine} [2013-01]
F01L 2003/251
. .
{Large number of valves, e.g. five or more} [2013-01]
F01L 2003/253
. .
{configured parallel to piston axis} [2013-01]
F01L 2003/255
. .
{configured other than parallel or symetrical relative to piston axis} [2013-01]
F01L 2003/256
. .
{configured other than perpendicular to camshaft axis} [2013-01]
F01L 2003/258
. .
{opening away from cylinder} [2013-01]
F01L 5/00
Slide valve-gear or valve-arrangements (with pure rotary or oscillatory movement F01L 7/00) [2013-01]
F01L 5/02
.
with other than cylindrical, sleeve or part annularly shaped valves, e.g. with flat-type valves [2016-08]
F01L 5/04
.
with cylindrical, sleeve, or part-annularly shaped valves [2013-01]
F01L 5/045
. .
{Piston-type or cylinder-type valves arranged above the piston and coaxial with the cylinder axis} [2013-01]
F01L 5/06
. .
surrounding working cylinder or piston [2013-01]
F01L 5/08
. . .
Arrangements with several movements or several valves, e.g. one valve inside the other (with part-annularly shaped valves F01L 5/12) [2013-01]
F01L 5/10
. . . .
with reciprocating and other movements of the same valve [2013-01]
F01L 5/12
. . .
Arrangements with part-annularly-shaped valves [2013-01]
F01L 5/14
.
characterised by the provision of valves with reciprocating and other movements (surrounding working cylinder or piston F01L 5/06) [2013-01]
F01L 5/16
. .
with reciprocating and other movement of same valve, e.g. longitudinally of working cylinder and in cross direction [2013-01]
F01L 5/18
. .
with reciprocatory valve and other slide valve [2013-01]
F01L 5/20
.
specially for two-stroke engines (F01L 5/06 and F01L 5/14 take precedence) [2013-01]
F01L 5/22
.
Multiple-valve arrangements (with valves surrounding working cylinder or piston F01L 5/06; with reciprocatory and other slide valves F01L 5/18; specially for two-stroke engines F01L 5/20) [2013-01]
F01L 5/24
.
Component parts, details or accessories, not provided for in preceding subgroups in this group [2013-01]
F01L 7/00
Rotary or oscillatory slide valve-gear or valve arrangements (slide valves with combined rotary and non-rotary movements, combinations of rotary and non-rotary slide valves F01L 5/00) [2013-01]
F01L 7/02
.
with cylindrical, sleeve, or part-annularly shaped valves (of disc type F01L 7/06; of conical type F01L 7/08) [2013-01]
F01L 7/021
. .
{with one rotary valve} [2013-01]
F01L 7/022
. . .
{Cylindrical valves having one recess communicating successively with aligned inlet and exhaust ports} [2013-01]
F01L 7/023
. . .
{Cylindrical valves having a hollow or partly hollow body allowing axial inlet or exhaust fluid circulation} [2013-01]
F01L 7/024
. . .
{Cylindrical valves comprising radial inlet and axial outlet or axial inlet and radial outlet} [2013-01]
F01L 7/025
. . .
{Cylindrical valves comprising radial inlet and side outlet or side inlet and radial outlet} [2013-01]
F01L 7/026
. .
{with two or more rotary valves, their rotational axes being parallel, e.g. 4-stroke} [2013-01]
F01L 7/027
. .
{with two or more valves arranged coaxially (F01L 7/045 takes precedence)} [2013-01]
F01L 7/028
. .
{having the rotational axis coaxial with the cylinder axis and the valve surface not surrounding piston or cylinder} [2013-01]
F01L 7/029
. .
{having the rotational axis of the valve parallel to the cylinder axis} [2013-01]
F01L 7/04
. .
Surrounding working cylinder or piston [2013-01]
F01L 7/045
. . .
{with two or more valves arranged coaxially} [2013-01]
F01L 7/06
.
with disc type valves [2013-01]
F01L 7/08
.
with conically or frusto-conically shaped valves [2013-01]
F01L 7/10
.
with valves of other specific shape, e.g. spherical [2013-01]
F01L 7/12
.
specially for two-stroke engines (F01L 7/04 takes precedence) [2013-01]
F01L 7/14
.
Multiple-valve arrangements (with valves surrounding working cylinder or piston F01L 7/04; specially for two-stroke engines F01L 7/12) [2013-01]
F01L 7/16
.
Sealing or packing arrangements specially therefor [2013-01]
F01L 7/18
.
Component parts, details, or accessories not provided for in preceding sub-groups of this group [2013-01]
F01L 9/00
Valve-gear or valve arrangements actuated non-mechanically [2013-01]
F01L 9/02
.
by fluid means, e.g. hydraulic [2013-01]
F01L 9/021
. .
{the action of a cam being transmitted to a valve by a fluid column, e.g. a fluid conduit} [2013-01]
F01L 9/023
. . .
{Hydraulic lifters, i.e. fluid chamber comprised between a piston actuated by a cam and a piston acting on a valve stem} [2013-01]
F01L 9/025
. . . .
{the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve} [2013-01]
F01L 9/026
. .
{Pneumatic} [2013-01]
F01L 2009/028
. .
{Boost means, i.e. means for increasing initial opening force of the valve} [2013-01]
F01L 9/04
.
by electric means [2013-01]
F01L 2009/0401
. .
{Driving circuits therefor} [2013-01]
F01L 2009/0403
. .
{Electromagnetic actuators comprising one coil} [2013-01]
F01L 2009/0405
. .
{Electromagnetic actuators comprising two or more coils} [2013-01]
F01L 2009/0407
. . .
{The two coils being disposed coaxially to the armature shaft} [2013-01]
F01L 2009/0409
. . .
{The armature being articulated perpendicularly to the coils axes} [2013-01]
F01L 2009/0411
. .
{Electromagnetic actuators using a rotary motor} [2013-01]
F01L 2009/0413
. .
{Piezo electric actuators} [2013-01]
F01L 2009/0415
. .
{Moving coil actuators} [2013-01]
F01L 2009/0417
. .
{Floating actuators for varying the valve stroke} [2013-01]
F01L 2009/0419
. .
{Actuator position setting device, e.g. initial setting} [2013-01]
F01L 2009/0421
. .
{Mixed arrangement with both mechanically and electromagnetically actuated valves} [2013-01]
F01L 2009/0423
. .
{Electromagnetic actuators construction details} [2013-01]
F01L 2009/0425
. . .
{Shaft and armature construction} [2013-01]
F01L 2009/0426
. . . .
{Arrangements for amplifying the armature stroke} [2013-01]
F01L 2009/0428
. . .
{Core and coil construction} [2013-01]
F01L 2009/043
. . .
{Casing construction} [2013-01]
F01L 2009/0432
. . .
{Biasing means} [2013-01]
F01L 2009/0434
. . . .
{Helical springs} [2013-01]
F01L 2009/0436
. . . . .
{Two opposed springs for intermediate resting position of the armature} [2013-01]
F01L 2009/0438
. . . .
{Torsion springs} [2013-01]
F01L 2009/044
. . . .
{Pneumatic springs} [2013-01]
F01L 2009/0442
. . . .
{Means for varying the spring bias} [2013-01]
F01L 2009/0444
. . . .
{Means for connecting springs to valve or anchor} [2013-01]
F01L 2009/0446
. . .
{Latching means} [2013-01]
F01L 2009/0448
. . . .
{using permanent magnet} [2013-01]
F01L 2009/0449
. . .
{Means for varying the air gap} [2013-01]
F01L 2009/0451
. . .
{Damping means} [2013-01]
F01L 2009/0453
. . .
{Means for counteracting cylinder pressure} [2013-01]
F01L 2009/0455
. . .
{Lash adjusting means} [2013-01]
F01L 2009/0457
. . .
{Actor cooling means} [2013-01]
F01L 2009/0459
. . .
{Means for facilitating assembly} [2013-01]
F01L 2009/0461
. . .
{Wiring} [2013-01]
F01L 2009/0463
. . . .
{Connectors} [2013-01]
F01L 2009/0465
. . . .
{Harnesses} [2013-01]
F01L 2009/0467
. . .
{Sensing means} [2013-01]
F01L 2009/0469
. . . .
{Position sensors} [2013-01]
F01L 2009/0471
. . . .
{Vibration sensors} [2013-01]
F01L 2009/0473
. . . .
{Temperature sensors} [2013-01]
F01L 2009/0474
. . . .
{Flux sensors} [2013-01]
F01L 2009/0476
. . . .
{Spring force sensors} [2013-01]
F01L 2009/0478
. .
{Electromagnetic actuators; Method of operation thereof} [2013-01]
F01L 2009/048
. . .
{Engine starting} [2013-01]
F01L 2009/0482
. . . .
{in normal conditions} [2013-01]
F01L 2009/0484
. . . .
{Cold start} [2013-01]
F01L 2009/0486
. . .
{Soft landing, e.g. applying braking current; Levitation of armature close to core surface} [2013-01]
F01L 2009/0488
. . .
{Fail safe, e.g. valve kept closed if not opening properly} [2013-01]
F01L 2009/049
. . .
{Determination of valve speed} [2013-01]
F01L 2009/0492
. . .
{Determination of valve timing during particular working conditions, e.g. deceleration} [2013-01]
F01L 2009/0494
. . .
{Engine stopping; Engine stall} [2013-01]
F01L 2009/0496
. . .
{relating to sticking duration} [2013-01]
F01L 2009/0498
. . .
{relating to gap between armature shaft and valve stem end} [2013-01]
F01L 11/00
Valve arrangements in working piston or piston-rod [2013-01]
F01L 11/02
.
in piston [2013-01]
F01L 11/04
. .
operated by movement of connecting-rod [2013-01]
F01L 11/06
. . .
operating oscillatory valve [2013-01]
F01L 13/00
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations [2013-01]
F01L 13/0005
.
{Deactivating valves} [2013-01]
F01L 2013/001
. .
{Deactivating cylinders} [2013-01]
F01L 13/0015
.
{for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque} [2013-01]
F01L 13/0021
. .
{by modification of rocker arm ratio} [2013-01]
F01L 13/0026
. . .
{by means of an eccentric} [2013-01]
F01L 13/0031
. .
{by modification of tappet or pushrod length} [2013-01]
F01L 13/0036
. .
{the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction} [2013-01]
F01L 13/0042
. . .
{with cams being profiled in axial and radial direction} [2013-01]
F01L 13/0047
. . .
{the movement of the valves resulting from the sum of the simultaneous actions of at least two cams, the cams being independently variable in phase in respect of each other} [2013-01]
F01L 2013/0052
. . .
{with cams provided on an axially slidable sleeve} [2013-01]
F01L 13/0057
. .
{by splittable or deformable cams} [2013-01]
F01L 13/0063
. .
{by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot} [2013-01]
F01L 2013/0068
. . .
{with an oscillating cam acting on the valve of the "BMW-Valvetronic" type} [2013-01]
F01L 2013/0073
. . .
{with an oscillating cam acting on the valve of the "Delphi" type} [2013-01]
F01L 2013/0078
. .
{by modification of cam contact point by axially displacing the camshaft} [2013-01]
F01L 2013/0084
. .
{by modification of cam contact point by radially displacing the camshaft} [2013-01]
F01L 2013/0089
. .
{with means for delaying valve closing} [2013-01]
F01L 2013/0094
. . .
{with switchable clamp for keeping valve open} [2013-01]
F01L 13/02
.
for reversing [2013-01]
F01L 13/04
.
for starting by means of fluid pressure [2013-01]
F01L 13/06
.
for braking [2013-01]
F01L 13/065
. .
{Compression release engine retarders of the "Jacobs Manufacturing" type} [2013-01]
F01L 13/08
.
for decompression, e.g. during starting; for changing compression ratio [2013-01]
F01L 13/085
. .
{the valve-gear having an auxiliary cam protruding from the main cam profile} [2013-01]
F01L 2013/10
.
{Auxiliary actuators for variable valve timing} [2013-01]
F01L 2013/101
. .
{Electromagnets} [2013-01]
F01L 2013/103
. .
{Electric motors} [2013-01]
F01L 2013/105
. .
{Hydraulic motors} [2013-01]
F01L 2013/106
. .
{Pneumatic motors} [2013-01]
F01L 2013/108
. .
{Centrifugal force} [2013-01]
F01L 2013/11
.
{Sensors for variable valve timing} [2013-01]
F01L 2013/111
. .
{Camshafts position or phase} [2013-01]
F01L 2013/113
. .
{crankshafts position} [2013-01]
F01L 2013/115
. .
{Pressure} [2013-01]
F01L 2013/116
. .
{Temperature} [2013-01]
F01L 2013/118
. .
{Valve lift} [2013-01]
Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, specially for steam engine, or specially for other machines or engines with variable working-fluid distribution [2013-01]
NOTE

  • The groups under this guide heading do not fully embrace subject matter restricted to rotary, oscillatory, or lift-valve-gear or valve arrangements, classified in groups F01L 33/00 and F01L 35/00. However, the present groups do embrace the following subject-matter thereof; valves drives or means external to valves for adjustment during operation, tripping-gear, reversing-gear, use of pistons or piston-rods as valves or as valve-supporting elements, valve-gear or valve arrangements peculiar to free-piston machines or engines
F01L 15/00
Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L 17/00 - F01L 29/00 (valve drive or external valve-adjustment during operation, see the relevant groups, e.g. F01L 31/00; tripping-gear or tripping of valves F01L 31/00) [2016-05]
F01L 15/02
.
with valves other than cylindrical, sleeve, or part-annularly-shaped, e.g. flat D-valves [2013-01]
F01L 15/04
. .
main valve being combined with auxiliary valve (of drag valve type F01L 15/10) [2013-01]
F01L 15/06
. . .
of Meyer or Rider type, i.e. in which the expansion is varied at the expansion valve itself [2013-01]
F01L 15/08
.
with cylindrical, sleeve, or part-annularly-shaped valves; Such main valves combined with auxiliarly valves [2013-01]
F01L 15/10
.
with main slide valve and auxiliary valve dragged thereby [2013-01]
F01L 15/12
.
characterised by having means for effecting pressure equilibrium between two different cylinder spaces at idling [2013-01]
F01L 15/14
.
Arrangements with several co-operating main valves, e.g. reciprocatory and rotary [2013-01]
F01L 15/16
. .
with reciprocatory slide valves only [2013-01]
F01L 15/18
.
Valves arrangements not provided for in preceding sub-groups of this main group [2013-01]
F01L 15/20
.
Component parts, details, or accessories, not provided for in preceding sub-groups of this main group [2013-01]
F01L 17/00
Slide valve-gear or valve arrangements with cylindrical, sleeve, or part annularly-shaped valves surrounding working cylinder or piston [2013-01]
F01L 17/02
.
Drive or adjustment during operation, peculiar thereto, e.g. for reciprocating and oscillating movements or for several valves one inside the other [2013-01]
F01L 19/00
Slide valve-gear or valve arrangements with reciprocatory and other movement of same valve, other than provided for in F01L 17/00, e.g. longitudinally of working cylinder and in cross direction [2013-01]
F01L 19/02
.
Drive or adjustment during operation, peculiar thereto [2013-01]
F01L 21/00
Use of working pistons or pistons-rods as fluid-distributing valves or a valve-supporting elements, e.g. in free-piston machines [2013-01]
F01L 21/02
.
Piston or piston-rod used as valve members {(F01L 25/066 takes precedence)} [2013-01]
F01L 21/04
.
Valves arranged in or on piston or piston-rod [2013-01]
F01L 23/00
Valves controlled by impact by piston, e.g. in free-piston machines {(F01L 25/063 takes precedence)} [2013-01]
F01L 25/00
Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means [2013-01]
F01L 25/02
.
by fluid means [2013-01]
F01L 25/04
. .
by working-fluid of machine or engine, e.g. free-piston machine [2013-01]
F01L 25/06
. . .
Arrangement with main and auxiliary valves, at least one of them being fluid-driven [2013-01]
F01L 25/063
. . . .
{the auxiliary valve being actuated by the working motor-piston or piston-rod} [2013-01]
F01L 25/066
. . . .
{piston or piston-rod being used as auxiliary valve} [2013-01]
F01L 25/08
.
by electric or magnetic means [2013-01]
F01L 27/00
Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L 21/00 - F01L 25/00 [2016-05]
F01L 27/02
.
the machine or engine having rotary or oscillatory valves [2013-01]
F01L 27/04
.
Delayed-action controls, e.g. of cataract or dashpot type [2013-01]
F01L 29/00
Reversing gear (equally usable for control of degree of working-fluid admission and reversing being of secondary-importance F01L 31/00) [2013-01]
F01L 29/02
.
by displacing eccentric [2013-01]
F01L 29/04
.
by links or guide rods [2013-01]
F01L 29/06
.
by interchanging inlet and exhaust ports [2013-01]
F01L 29/08
.
specially for rotary or oscillatory valves [2013-01]
F01L 29/10
.
Details, e.g. drive [2013-01]
F01L 29/12
. .
Powered reverse gear [2013-01]
F01L 31/00
Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L 15/00 - F01L 29/00 (sensing elements measuring the variable or condition to be controlled or regulated F01B) [2016-05]
F01L 31/02
.
with tripping-gear (for oscillatory valves F01L 31/06); Tripping of valves [2013-01]
F01L 31/04
. .
with positively-driven trip levers [2013-01]
F01L 31/06
.
with tripping-gear specially for oscillatory valves; Oscillatory tripping-valves, e.g. of Corliss type [2013-01]
F01L 31/08
.
Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear [2013-01]
F01L 31/10
. .
the drive being effected by eccentrics (F01L 31/14 takes precedence) [2013-01]
F01L 31/12
. . .
Valve adjustment by displacing eccentric [2013-01]
F01L 31/14
. .
Valve adjustment by links or guide rods, e.g. in valve-gear with eccentric drive [2013-01]
F01L 31/16
. .
the drive being effected by specific means other than eccentric, e.g. cams; Valve adjustment in connection with such drives [2013-01]
F01L 31/18
. .
specially for rotary or oscillatory valves [2013-01]
Rotary or oscillatory slide valve-gear or lift-valve-gear or such valve arrangements specially for steam engines or specially for other machines or engines with variable working-fluid distribution (drive adjustment during operation, tripping-gear, reversing-gear, use of working pistons or piston-rods as valves or as valves-supporting elements, valve-gear or valve arrangements peculiar to free-piston machines or engines F01L 15/00 - F01L 31/00) [2016-05]
F01L 33/00
Rotary or oscillatory slide valve-gear or valve arrangements, specially adapted for machines or engines with variable fluid distribution (drive, adjustment during operation, tripping-gear, reversing-gear, use of working pistons or piston-rods as valves or as valve-supporting elements, valve-gear or valve arrangements peculiar to free-piston machines or engines F01L 15/00 - F01L 31/00) [2016-05]
F01L 33/02
.
rotary [2013-01]
F01L 33/04
.
oscillatory [2013-01]
F01L 35/00
Lift valve-gear or valve arrangements specially adapted for machines or engines with variable fluid distribution (drive, adjustment during operation, tripping-gear, reversing-gear, use of working pistons or piston-rods as valves or as valve-supporting elements, valve-gear or valve arrangements peculiar to free-piston machines or engines F01L 15/00 - F01L 31/00) [2016-05]
F01L 35/02
.
Valves [2013-01]
F01L 35/04
.
Arrangements of valves in the machine or engine, e.g. relative to working cylinder [2013-01]

F01L 2101/00
Using particular materials [2013-01]
F01L 2101/02
.
Using ceramic materials [2013-01]
F01L 2103/00
Manufacturing of components used in valve arrangements [2013-01]
F01L 2103/01
.
Tools for producing, mounting or adjusting, e.g. some part of the distribution [2013-01]
F01L 2103/02
.
Initial camshaft settings [2013-01]
F01L 2105/00
Valve arrangements comprising rollers [2013-01]
F01L 2105/02
.
Mounting of rollers [2013-01]
F01L 2107/00
Preventing the rotation of tappets [2013-01]
F01L 2109/00
Self-contained lash adjusters [2013-01]
F01L 2111/00
Differential gears located between crankshafts and camshafts for varying the timing of valves [2013-01]
F01L 2113/00
Rotary valve drives [2013-01]
F01L 2201/00
Electronic control systems; Apparatus or methods therefor [2013-01]
F01L 2250/00
Camshaft drives characterised by their transmission means [2013-01]
F01L 2250/02
.
the camshaft being driven by chains [2013-01]
F01L 2250/04
.
the camshaft being driven by belts [2013-01]
F01L 2250/06
.
the camshaft being driven by gear wheels [2013-01]
F01L 2710/00
Control of valve gear, speed or power [2013-01]
F01L 2710/003
.
Control of valve gear for two stroke engines [2013-01]
F01L 2710/006
.
Safety devices therefor [2013-01]
F01L 2740/00
Control of slide-valve gear; Control pistons [2013-01]
F01L 2740/003
.
more than one slide-valve, e.g. for four stroke engines [2013-01]
F01L 2740/006
.
more than one slide-valve, e.g. for two stroke engines [2013-01]
F01L 2750/00
Control of valve gear for four stroke engines directly driven by the crankshaft [2013-01]
F01L 2760/00
Control of valve gear to facilitate reversing, starting, braking of four stroke engines [2013-01]
F01L 2760/001
.
for starting four stroke engines [2013-01]
F01L 2760/002
.
for reversing or starting four stroke engines [2013-01]
F01L 2760/003
.
for switching to compressor action in order to brake [2013-01]
F01L 2760/004
. .
whereby braking is exclusively produced by compression in the cylinders [2013-01]
F01L 2760/005
. .
in cooperation with vehicle transmission or brakes; devices to facilitate switching to compressor action by means of other control devices, e.g. acceleration pedal or clutch [2013-01]
F01L 2760/006
.
for reversing two stroke engines [2013-01]
F01L 2760/007
.
for starting two stroke engines [2013-01]
F01L 2760/008
.
for reversing and restarting two strocke engines [2013-01]
F01L 2800/00
Methods of operation using a variable valve timing mechanism [2013-01]
F01L 2800/01
.
Starting [2013-01]
F01L 2800/02
.
Cold running [2013-01]
F01L 2800/03
.
Stopping; Stalling [2013-01]
F01L 2800/04
.
Timing control at idling [2013-01]
F01L 2800/05
.
Timing control under consideration of oil condition [2013-01]
F01L 2800/06
.
Timing or lift different for valves of same cylinder [2013-01]
F01L 2800/08
.
Timing or lift different for valves of different cylinders [2013-01]
F01L 2800/09
.
Calibrating [2013-01]
F01L 2800/10
.
Providing exhaust gas recirculation [EGR] [2013-01]
F01L 2800/11
.
Fault detection, diagnosis [2013-01]
F01L 2800/12
.
Fail safe operation [2013-01]
F01L 2800/13
.
Throttleless [2013-01]
F01L 2800/14
.
Determining a position, e.g. phase or lift [2013-01]
F01L 2800/15
.
Balancing of rotating parts [2013-01]
F01L 2800/16
.
Preventing interference [2013-01]
F01L 2800/17
.
Maintenance; Servicing [2013-01]
F01L 2800/18
.
Testing or simulation [2013-01]
F01L 2800/19
.
Valves opening several times per stroke [2013-01]
F01L 2810/00
Arrangements solving specific problems in relation with valve gears [2013-01]
F01L 2810/01
.
Cooling [2013-01]
F01L 2810/02
.
Lubrication [2013-01]
F01L 2810/03
.
Reducing vibration [2013-01]
F01L 2810/04
.
Reducing noise [2013-01]
F01L 2810/05
.
Related to pressure difference on both sides of a valve [2013-01]
F01L 2820/00
Details on specific features characterising valve gear arrangements [2013-01]
F01L 2820/01
.
Absolute values [2013-01]
F01L 2820/02
.
Formulas [2013-01]
F01L 2820/03
.
Auxiliary actuators [2013-01]
F01L 2820/031
. .
Electromagnets [2013-01]
F01L 2820/032
. .
Electric motors [2013-01]
F01L 2820/033
. .
Hydraulic engines [2013-01]
F01L 2820/034
. .
Pneumatic engines [2013-01]
F01L 2820/035
. .
Centrifugal forces [2013-01]
F01L 2820/04
.
Sensors [2013-01]
F01L 2820/041
. .
Camshafts position or phase sensors [2013-01]
F01L 2820/042
. .
Crankshafts position [2013-01]
F01L 2820/043
. .
Pressure [2013-01]
F01L 2820/044
. .
Temperature [2013-01]
F01L 2820/045
. .
Valve lift [2013-01]