Power plants – Internal combustion engine with treatment or handling of... – Common receiver having inlets from plural cylinder
Patent
1982-09-27
1985-04-02
Lazarus, Ira S.
Power plants
Internal combustion engine with treatment or handling of...
Common receiver having inlets from plural cylinder
181240, 181264, 181272, F01N 710
Patent
active
045079170
ABSTRACT:
An improved engine construction is disclosed having a valve train including valves and corresponding valve stems for controlling the intake and exhaust ports, cams for imparting reciprocating motion to the valves by way of the valve train, and a valve spring for biasing each valve toward its closed position and the valve train into tracking relation with the cam. The only element of the valve train coupling a cam to a stem is a cam follower with a depression for receiving the corresponding stem end and a cam engaging surface opposite the depression with the cam follower being held captive intermediate the stem and cam solely by the spring biasing of the stem toward the cam and the engagement of the stem end and the depression. Another feature of the engine resides in the engine block casting which includes an exhaust gas passageway extending from an engine cylinder and including near the end thereof remote from the cylinder an enlarged cavity which defines at least a part of a muffler shell. A further feature of the engine resides in a combination crankcase breather mechanism and oil fill cap which due to its remote location from the engine crankshaft as well as the tortuous air flow path through the cap to the atmosphere minimizes the egress of oil from the engine through the breather mechanism.
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Bailey R. S.
Hoffman John F.
Jeffers Albert L.
Lazarus Ira S.
Tecumseh Products Company
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