Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate
2007-10-30
2007-10-30
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Lubricators
Crankcase, pressure control
Reexamination Certificate
active
10546986
ABSTRACT:
In order to provide an engine oil supply apparatus including a second oil pump (12) which can draw in and discharge oil quickly regardless of whether or not a first oil pump (11) is driven and which does not need to be large, an engine oil supply apparatus (Y) includes a first oil pump (11) drawing oil through a first oil passage (21) from an oil holder (13) holding oil, a second oil pump (12) connected in series with the first oil pump (11) through a connection oil passage (26) and driven independently of the first oil pump (11), a first supply oil passage (23) for supplying oil to a first circulation section (41) from the first oil pump (11), and a second supply oil passage (24) for supplying oil to a second circulation section (42) from the second oil pump (12). In the engine oil supply apparatus (Y), a first oil reservoir (15) holds oil to be supplied to the second oil pump (12) and is provided independently of the oil holder (13) is provided.
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Fujikawa Toru
Futamura Kazumasa
Ikegawa Atsutoshi
Shirai Makoto
A. Marquez, Esq. Juan Carlos
Aisin Seiki Kabushiki Kaisha
Benton Jason
Fisher Esq. Stanley P.
Reed Smith LLP
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