Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1998-06-23
1999-08-17
Kamen, Noah P.
Internal-combustion engines
Lubricators
Crankcase, pressure control
123195C, 123196R, 123198E, 184106, 184 65, F01M 110
Patent
active
059378174
ABSTRACT:
A dry sump oil cooling system for an internal combustion engine includes an oil pan reservoir, an oil return port, an oil pickup port, and a baffle. The oil pan reservoir has a first end, a second end, a length therebetween, a top and a bottom. Both the oil return port and the oil pickup port are defined at the first end of the reservoir. The oil return port is located adjacent the top of the reservoir while the oil pickup port is located adjacent the bottom of the reservoir. The baffle is coupled to the reservoir between the top and the bottom or free-standing within the reservoir to divide the reservoir into a top chamber and a bottom chamber. The baffle at least partially defines an oil passageway between the top chamber and the bottom chamber at the second end such that most of the oil flows substantially across the length of the oil pan reservoir twice before being returned to the engine by the oil pickup port.
REFERENCES:
patent: 2577188 (1951-12-01), Hall
patent: 3301230 (1967-01-01), Ito
patent: 5038890 (1991-08-01), Tanaka et al.
patent: 5103782 (1992-04-01), Matsui
patent: 5465692 (1995-11-01), Uraki et al.
Lockwitz Gary L.
Roberts Bruce M.
Schanz John W.
Troxler Paul J.
Hairston Brian
Harley-Davidson Motor Company
Kamen Noah P.
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