Oil supply system

Details Oil supply system Oil supply system

B - Operations, Transporting

23

D

184/43, 143/7

B23D 59/04 (2006.01) B23Q 11/10 (2006.01) B27B 17/12 (2006.01) B60R 17/00 (2006.01) F02B 63/02 (2006.01) F16N 7/30 (2006.01)

Patent

CA 1163206

ABSTRACT The subject invention is an oil supply system for use in such devices as chain saws for supplying lubricating oil to contact surfaces. The oil tank is pressurized by communication with the engine crankcase of the device through a pressurizing passage having a one-way flow valve. A regulating valve is also situated in the pressurizing passage, adjustment of which regulating valve compensates for variation in working conditions. Oil flow after stoppage of the engine may also be prevented. Prior such oil supply systems featured a fixed size breather hole in the oil tank, and such systems had continuing oil flow after engine stoppage and no means of compensating for variations in working conditions. Various embodiments of the oil supply system of the subject invention are disclosed.

385238

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