Glenn A Richardson

US Patent:

48376973, Jun 6, 1989

Filed:

Jul 31, 1987

Appl. No.:

7/080728

Inventors:

Soraya Eisa - South Bend IN
Joseph Peczkowski - Granger IN
Henry Tyler - South Bend IN
Glenn Richardson - South Bend IN

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

F02C 938

US Classification:

36443102

Abstract:

A fuel management system (34) for a turbine engine (10) having a metering valve (50) controlled by the input of an electronic computer (36) to a resolver (48). A head sensor (64) responds to pressure differential across the metering valve (50), to control a bypass valve (80) which allows a portion of the fuel available from a supply conduit (58) to return to a reservoir (28). An overspeed governor (116) receives an input turbine (10) to position a cam (120) having four contours (154, 156, 158, and 160) thereon. The first contour (154) provides a feedback to balance the actual speed input. The second contour (156) controls the opening of a proportional valve (122) when the rotation of the turbine exceeds a preset value to allow an operational fluid pressure in the bypass valve (80) to be reduced and additional fuel to flow to the return conduit (95). The third contour (158) controls the movement of flapper valve (128) which allows an integrator piston (124) to move and open an integrator valve (126) to permit a further reduction in the operational fluid pressure such that an additional and corresponding amount of fuel is returned to the reservoir (28). The fourth contour (160) has a linkage (182) connected to the integrator piston (124) and in conjunction with the movement of the flapper valve (128) by the third contour at speeds up to about one half of the normal operational speeds allows the integrator piston (124) to move without opening the integrator valve (126) to provide assurance that the overspeed governor (116) is capable of functioning.

US Patent:

48768570, Oct 31, 1989

Filed:

Aug 15, 1988

Appl. No.:

7/233106

Inventors:

Kevin L. Feltz - New Carlisle IN
Glenn A. Richardson - South Bend IN
Jonathan C. Burrell - South Bend IN

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

F02C 7232

US Classification:

60734

Abstract:

A shut off and pressure regulator valve (10) for use with a metering valve (12) in a fuel system for a turbine engine. A pressure responsive piston (70) freely moves in a sleeve (48) to initiate fluid communication between an inlet port (16) and an outlet port (24). In response to a predetermined pressure differential a seal (90) carried by the piston (70) engages a ramp (56) to prevent fluid communication through the operational clearance (x) between the piston (70) and sleeve (48) to prevent fluid communication of a control fuel from a control chamber (76) to the outlet port (24) connected to the turbine engine.