Measuring and testing – With fluid pressure – Motor part or auxiliary
Reexamination Certificate
2007-04-24
2007-04-24
Cygan, Michael (Department: 2855)
Measuring and testing
With fluid pressure
Motor part or auxiliary
C123S516000
Reexamination Certificate
active
10938559
ABSTRACT:
A leak detecting system detects fuel gas leakage of a fuel tank. The detecting system includes a fuel pump, a jet pump, and a bent valve, which are disposed in the fuel tank. A fuel flow path system includes a relief line connected to the fuel pump for relieving an excess fuel, a relief flow path switching valve disposed in the relief line, and a sub-line for connecting the switching valve and the vent valve. An air flow path system includes a first air flow line to connect the vent valve to a canister, a second air flow line for connecting the first air flow line to the jet pump, and an air flow switching valve for switching communication between the first and second air flow lines. An inner pressure sensor is provided to the fuel tank for detecting an inner pressure of the fuel tank.
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Kato Tsuyoshi
Kimisawa Toshihide
Mitani Tateki
Cygan Michael
Kanesaka Manabu
Mitsubishi Denki & Kabushiki Kaisha
Nifco Inc.
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