US 9,810,222 B2
Fluid pump comprising a positive-locking clutch for a motor vehicle
Michael Baeuerle, Eberdingen (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Aug. 6, 2014, as Appl. No. 14/453,402.
Claims priority of application No. 10 2013 215 424 (DE), filed on Aug. 6, 2013.
Prior Publication US 2015/0044074 A1, Feb. 12, 2015
Int. Cl. F01P 3/00 (2006.01); F04D 13/02 (2006.01); F16D 11/14 (2006.01); F16D 23/00 (2006.01); F16D 11/04 (2006.01); F04C 15/00 (2006.01)
CPC F04D 13/022 (2013.01) [F01P 3/00 (2013.01); F04D 13/021 (2013.01); F16D 11/04 (2013.01); F16D 11/14 (2013.01); F16D 23/00 (2013.01); F04C 15/0073 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fluid pump (10) for a motor vehicle, the fluid pump comprising:
a pump rotor (20) for pumping a fluid;
a shaft (12) for driving the pump rotor (20);
a clutch (16) for the switchable coupling of the shaft (12) to the pump rotor (20);
characterized in that the clutch (16) is operable to connect the shaft (12) to the pump rotor (20) in a positive-locking manner and to separate the shaft (12) from the pump rotor (20),
wherein the clutch (16) comprises a coupling element (36) which is axially displaceable with respect to the shaft (12) and is operable to come in engagement with a further coupling element (42), and
wherein the axially displaceable coupling element (36) comprises a helical groove (56), in which a pin (48) can be latched in a radial direction in order to move the axially displaceable coupling element (36), when rotated, away from the further coupling element (42).