Engine override controls

Details Engine override controls Engine override controls

1981-11-16

1989-09-12

Miller, Carl Stuart

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123365, 414699, 60431, F02M 3900

Patent

active

048649945

ABSTRACT:
An engine override control for an engine (10) which drives a vehicle transmission (18) and an auxiliary variable displacement pump (20) and which is operable to increase engine speed beyond a set engine speed command to increase flow from the auxiliary pump which has reached maximum displacement at said set engine speed under the control of flow-compensator control (60). A valve (31) controls the delivery of fluid from the pump to a load (34) and associated orifices (42a) and (43a) establish a pressure differential between the pressure of fluid supplied by the auxiliary pump (20) and the operating pressure applied to the load. A cylinder (80) responsive to the pressure differential acts on a control member (12) for the engine governor to increase the speed of the engine when the pressure differential falls below a predetermined value.

REFERENCES:
patent: 2941365 (1960-06-01), Carlson et al.
patent: 2942421 (1960-06-01), Hann et al.
patent: 3159965 (1964-12-01), Woolley et al.
patent: 3447556 (1969-06-01), Howeth
patent: 3703806 (1972-11-01), Williamson
patent: 3812676 (1974-05-01), Smith
patent: 3866418 (1975-02-01), Waters
patent: 3949713 (1976-04-01), Rivere
patent: 3987625 (1976-10-01), Swatty et al.
patent: 4373850 (1983-02-01), Durham
Specification Sheet No. 55, Viatran Corporation 8/78.

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