Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1989-12-28
1992-07-28
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
F02C 938
Patent
active
051331810
ABSTRACT:
A fuel management system (34) for a turbine engine having a metering valve (50) controlled by the input of an electronic computer (36) to a resolver (48). A head pressure sensor (67) responds to pressure differential across the fuel metering valve (50) to control a bypass valve (80) which allows a portion of the fuel available from a fuel supply conduit (58) to return to a fuel reservoir (28). A reference pressure controlled head bypass valve (80) utilizing pressures above (P.sub.1) and below (P.sub.2) a metering valve (50) as reference pressures during normal operation and a non-controlled reference pressure during shut-off to maintain a minimum fuel pressure required for control purposes during shut-off. The non-controlled pressure reference may be obtained as a pressure drop across a series (typically a pair) of small orifices or apertures. The non-controlled reference pressure is typically achieved as the intermediate pressure between a regulated (pcb) body pressure and the inlet fuel supply pressure (P.sub.1).
REFERENCES:
patent: 4608820 (1986-09-01), White et al.
patent: 4716723 (1988-01-01), Ralston et al.
patent: 4738597 (1988-04-01), Agostino et al.
patent: 4837697 (1989-06-01), Eisa et al.
Allied-Signal Inc.
Casaregola Louis J.
McCormick Jr. Leo H.
Palguta Larry J.
Walsh Robert A.
LandOfFree
Fuel control shut-off system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel control shut-off system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel control shut-off system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1680970