Four-cycle engine having improved lubricating mechanism

Details Four-cycle engine having improved lubricating mechanism Four-cycle engine having improved lubricating mechanism

1998-09-02

2000-11-14

Argenbright, Tony M.

Internal-combustion engines

Two-cycle

Rear compression

123196CP, 123196M, 123317, 123318, F02B 7502, F02B 3304

Patent

active

061454842

ABSTRACT:
A four-cycle engine in which a mixed gas of a fuel and air containing a lubricating oil is transferred from a carburetor to a cylinder or a crank chamber, the gas is pushed out in the stage of descending the piston to the passage on the reverse side, transferred into a rocker arm chamber including an intake valve at the top of the cylinder via a passage including a valve gear mechanism, and it is directed to the cylinder in the intake stage, whereby the engine is lubricated by the lubricating oil. The engine has no oil pan and can be run at any inclination angle (360.degree.). Also disclosed is that it is also possible for the four-cycle engine to provide a diverged second passage extending to the crank room, to provide a lead valve on a portion of the second the passage, to provide a diverged third passage extending to the lower end of the crank chamber, to provide a lead valve or rotary valve, and to provide a fourth and/or fifth passage(s) to circulate the mixed gas.

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