Port configuration for fuel pump unit for facilitating pressure feedback
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United States of America Patent
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May 30, 2006
Grant Date -
Dec 16, 2004
app pub date -
Jun 13, 2003
filing date -
Jun 13, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An oil pump unit includes an additional outlet port connected to the downstream side of the pump through the pump cover. With this additional port, the oil pump unit is able to have electronic vacuum and pressure sensors upstream and downstream of the pump for remote monitoring of the pump. The invention is particularly suited for oil pump units which have a main discharge outlet port through the one side of the pump body and a main inlet port through an opposing side of the pump cover. The invention is also particularly suited for oil pump units having a solenoid valve mounted at the top side of the pump body which prevents installation of a pressure sensor along the top side.
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