Fuel pump gasket
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United States of America Patent
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Issued Date -
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app pub date -
May 17, 2005
filing date -
Jun 13, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a gasket for a fuel pump unit configured with a second outlet port for accommodating a pressure sensor to monitor the downstream pressure of pumped fuel. The gasket is adapted for placement between a pump cover incorporating the second outlet port and a pump body containing a gear pump. Providing fluid communication between a first outlet port downstream of the gear pump and the second outlet port is a passageway disposed through the pump cover and pump body. To avoid obstructing the passageway, the gasket includes an aperture. To prevent high pressure fuel from being forced through the gasket and leaked from the pump unit, the gasket includes a leakage collection channel having a first leg, a second leg and an intermediate portion surrounding the aperture. The leakage collection channel is adapted to return leaked fuel to a low pressure reservoir between the pump cover and pump body.
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