Lubrication system for air-cooled engines

Details Lubrication system for air-cooled engines Lubrication system for air-cooled engines

1977-04-26

1978-07-18

Lazarus, Ronald H.

Internal-combustion engines

Lubricators

Crankcase, pressure control

123 9038, 123 4133, F01M 100

Patent

active

041009096

ABSTRACT:
A V-shaped, air-cooled engine has a lubricant pump located in the lower portion of the crankcase, and at least partly immersed in the engine lubricating oil so that oil is contained therein at all times. Lubricating oil is pumped to the cylinders through internal passages in the crankcase, and through annular passages between the valve push rods and their tubular housings. Lubricant return passages lead through the cooling fins provided on the cylinders, so that cooling air flowing over the cylinder fins serves to cool the lubricating oil.

REFERENCES:
patent: 1655518 (1928-01-01), Smith
patent: 1721341 (1929-07-01), Halford
patent: 2012739 (1935-08-01), Brown
patent: 2366701 (1945-01-01), Doman
patent: 2902022 (1959-09-01), Bakke et al.

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