Engine override controls
This patent describes an engine governor override control for an engine which drives a vehicle transmission and an auxiliary pump and operable to increase engine speed beyond a set engine speed command to increase flow from the auxiliary pump which is a variable displacement pump and which has reached maximum displacement at the set engine speed. The auxiliary pump being in a fluid circuit to supply fluid to a load at displacements less than maximum and the load having a maximum flow demand in excess of that which can be supplied by the pump when at maximum displacement. It comprises means for establishing and sensing a pressure differential between the pressure of fluid supplied by the pump and the operating pressure applied to a load to determine fluid flow rate.
- Assignee:
- Sundstrand Corp., Rockford, IL
- Patent Number(s):
- US 4864994
- Application Number:
- PPN: US 6322181A
- OSTI ID:
- 5312418
- Country of Publication:
- United States
- Language:
- English
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