Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1996-08-21
1998-01-20
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123514, 123690, 123198D, 417269, 417473, F02M 2500, F04B 2708, F04B 2502
Patent
active
057091978
ABSTRACT:
Fuel is pressurized by the expansion and contraction of a pump chamber defined inside a casing according to the rotation of a power input shaft which penetrates from the outside of the casing into its inside. A first seal member is provided between the casing and the power input shaft and prevents escape of fuel which is inside the casing, and a second seal member is provided in series therewith. Further, leakage of fuel to the outside of the casing from the second seal member is prevented by the provision of a drain conduit which drains fuel which has leaked into a space defined between the first seal member and the second seal member.
REFERENCES:
patent: 5058845 (1991-10-01), Cardillo
patent: 5070847 (1991-12-01), Akiyama et al.
patent: 5283548 (1994-02-01), Kanno
patent: 5354181 (1994-10-01), Porel
patent: 5411007 (1995-05-01), Narita
patent: 5441026 (1995-08-01), Akimoto
Inokuchi Iwane
Kamegaya Shigeru
Oshidari Toshikazu
Sakamoto Atsuhiro
Nissan Motor Co,. Ltd.
Vo Hieu T.
Wolfe Willis R.
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