Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1990-11-26
1992-02-25
Cross, E. Rollins
Internal-combustion engines
Lubricators
Crankcase, pressure control
123196R, 184 618, F01M 106
Patent
active
050903756
ABSTRACT:
A single cylinder, overhead cam, internal combustion engine lubrication system where lubricating oil is pumped from a crankcase oil sump through oil passages to the upper bearings of the crankshaft and camshaft. The oil leaks from the bearings, adheres and flows down the shafts which is flung by rotation thereby lubricating the cam lobes and valve tappets. Oil, accumulating in the cam chamber sump, lubricates the lower camshaft bearing before being pumped through the closed loop circulatory system.
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Cross E. Rollins
Solis Erick
Tecumseh Products Company
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