Lubricating apparatus for an internal combustion engine

Details Lubricating apparatus for an internal combustion engine Lubricating apparatus for an internal combustion engine

2006-10-24

2006-10-24

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Lubricators

Crankcase, pressure control

Reexamination Certificate

active

07124732

ABSTRACT:
A lubricating apparatus for an internal combustion engine includes an oil pump12comprising a feed pump13and scavenging pumps14and15. Then oil pump12and an oil tank16are arranged at the outside of the internal combustion engine9. A pump shaft for the pumps13, 14and15can be arranged in a same direction as that of a crank shaft of the engine9. The feed pump13and two scavenging pumps14and15are arranged in serial order with the feed pump being farthest from the engine9. A check valve24can be arranged in a passage of the discharge side of the feed pump13. A relief valve23can be arranged between a passage of the discharge side of the feed pump13and a passage of the intake side of the scavenging pump14.

REFERENCES:
patent: 6732700 (2004-05-01), Suganuma
patent: 6823828 (2004-11-01), Nishi et al.
patent: 2002/0078917 (2002-06-01), Suganuma
patent: 2003/0116115 (2003-06-01), Nishi et al.
patent: 2004/0040531 (2004-03-01), Yamamoto
patent: 2001-073731 (2001-03-01), None

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