Oil lubricating system for a two-stroke internal combustion engi

Details Oil lubricating system for a two-stroke internal combustion engi Oil lubricating system for a two-stroke internal combustion engi

1995-07-25

1997-05-27

Okonsky, David A.

Internal-combustion engines

Lubricators

Crankcase, pressure control

123195HL, F01M 100

Patent

active

056322410

ABSTRACT:
A lubricant supply system for a two-stroke internal combustion engine, which system includes first and second adjacently located and substantially sealed crankcase chambers which alternately experience high and low pressure conditions which are out of phase with respect to the occurrence thereof, first and second oil supply passages respectively communicating with the first and second crankcase chambers, an oil supply circuit including an oil supply chamber adapted to contain oil and having therein a formation including therein a recess isolated from the oil supply chamber and communicating with the first and second oil supply passages, a metering rod including therein an indentation and supported in the oil supply chamber for movement in the formation between a first position wherein the indentation is located in the oil chamber, thereby affording filling of the indentation with oil, and a second position wherein the indentation is located in the formation in communication with the recess, thereby affording supplying of the oil in the indentation to the sealed crankcase chambers, and a mechanism for effecting movement of the oil metering rod between the first and second positions.

REFERENCES:
patent: 2459594 (1949-01-01), Smith
patent: 4599979 (1986-07-01), Breckenfeld et al.
patent: 4926814 (1990-05-01), Bonde
patent: 5163394 (1992-11-01), Koishikawa et al.
patent: 5193500 (1993-03-01), Haft
patent: 5215164 (1993-06-01), Shibata
patent: 5287833 (1994-02-01), Yashiro
patent: 5297511 (1994-03-01), Suzuki

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