SUCTION CONTROLLED PUMP FOR HEUI SYSTEMS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Nov 7, 2002
app pub date -
Apr 16, 2002
filing date -
Apr 20, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A HEUI system uses a fixed displacement, piston pump to provide a generally constant pump flow of high pressure hydraulic fluid over the operating speed range of the pump to minimize parasitic power drains on the engine. The piston pump includes an orificing suction slot to vary the pump displacement over the operating speed of the pump. A throttling valve at the pump inlet may be provided to starve inlet fluid feed if reduced flow to the injectors is additionally required.
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