Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Reexamination Certificate
2007-11-13
2007-11-13
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
Reexamination Certificate
active
10540053
ABSTRACT:
Since an aspirator7is disposed at a position lower than a fuel gallery11and an overflow fuel pipe81, DME fuel remaining in the fuel gallery11and the overflow fuel pipe81can be more efficiently retrieved to a fuel tank4by a combined force of gravity and suction force produced in a suction port7cof the aspirator7. Since the vapor-phase pressure delivery pipe opening/closing solenoid valve74is disposed at a position higher than the fuel gallery11, DME fuel in a liquid state remaining in the fuel gallery11and the overflow fuel pipe81is forcedly delivered under pressure to the suction port7cof the aspirator7by a combined force of gravity and the pressure of a vapor phase4bin the fuel tank4. Accordingly, time taken to retrieve the DME fuel in an injection system to the fuel tank after the stop of a diesel engine.
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Hayasaka Yukihiro
Ishikawa Teruaki
Noda Toshifumi
Nozaki Shinya
Ushiyama Daijo
Bosch Automotive Systems Corporation
Gimie Mahmoud
Priest & Goldstein PLLC
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