| US 7,594,403 B2 | ||
| Bleed off valve system | ||
| Michel Cadieux, Quebec (Canada) | ||
| Assigned to Rolls-Royce Power Engineering PLC, Derby (United Kingdom) | ||
| Filed on Feb. 15, 2007, as Appl. No. 11/706,691. | ||
| Application 11/706691 is a continuation of application No. PCT/US2007/001578, filed on Jan. 22, 2007. | ||
| Claims priority of provisional application 60/760603, filed on Jan. 20, 2006. | ||
| Prior Publication US 2008/0028764 A1, Feb. 07, 2008 | ||
| Int. Cl. F02C 6/04 (2006.01) | ||
| U.S. Cl. 60—785 [60/782] | 15 Claims |
| 1. A system comprising:
a first gas turbine engine compressor;
a second gas turbine engine compressor;
a working fluid passageway connecting said first gas turbine engine compressor in fluid flow communication with said second
gas turbine engine compressor;
a plenum;
a unison ring extending around said working fluid passageway;
a plurality of bleed off doors defining a portion of an outer wall of said working fluid passageway and located between said
compressors, said plurality of bleed off doors coupled to said unison ring and operable to open into the plenum to allow working
fluid flow from said working fluid passageway into said plenum; and
a plurality of actuators located outside of said plenum and coupled to said unison ring and operable to move the unison ring
in a linear direction and actuate said plurality of bleed off doors.
|