Vertical engine for walk behind lawn mower

Details Vertical engine for walk behind lawn mower Vertical engine for walk behind lawn mower

1987-06-09

1988-03-01

Cross, E. Rollins

Internal-combustion engines

Lubricators

Crankcase, pressure control

123196CP, 184 618, 184 131, F01M 100

Patent

active

047278340

ABSTRACT:
A lawn mower or other similar walk behind type of implement that is designed to be operated in a normally erect position and which is tilted to its side for servicing. An engine is provided for the lawn mower having an output shaft rotatable about a vertically extending axis. The engine includes a lubricating system incorporating a crankcase in which the engine output shaft rotates and a crankcase ventilating system. The crankcase ventilating system is designed so as to prevent lubricant from flowing into the induction system when the engine is tilted on its side.

REFERENCES:
patent: 3931812 (1976-01-01), Ashfield et al.
patent: 4426964 (1984-01-01), Umeda et al.
patent: 4470389 (1984-09-01), Mitadera et al.
patent: 4570584 (1986-02-01), Uetsuji et al.
patent: 4579092 (1986-04-01), Kandler
patent: 4628878 (1986-12-01), Nakano et al.

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