Valve operating mechanism for internal combustion engine

Details Valve operating mechanism for internal combustion engine Valve operating mechanism for internal combustion engine

1987-07-09

1988-12-27

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Plural valve trains, single actuator

123 9044, 123193H, F01L 144, F02F 124

Patent

active

047932970

ABSTRACT:
An internal combustion engine, which includes a cylinder bore having an axis, a cylinder head disposed above the cylinder bore and having a combustion chamber, intake and exhaust valves movably supported in the cylinder head, and a spark plug supported in the cylinder head and having electrodes disposed centrally in the combustion chamber. A valve operating mechanism combined with an internal combustion engine comprising, a single camshaft rotatably disposed above the cylinder head, a single rocker arm shaft rotatably disposed above the cylinder head, an intake-valve rocker arm swingably supported on the rocker shaft and operatively engaging the intake valve, an exhaust-valve rocker arm swingably supported on the rocker shaft and operatively engaging the exhaust valve, a cam holder disposed above the cylinder bore, the camshaft being rotatably supported by the cam holder, a rocker holder disposed above the cylinder bore, the rocker arm shaft being rotatably supported by the rocker holder, and a plug insertion tube having a plug insertion hole for insertion of the spark plug therethrough, the plug insertion tube being integrally formed with the cam holder and the rocker holder.

REFERENCES:
patent: 4549510 (1985-10-01), Miyakoshi et al.
patent: 4558667 (1985-12-01), Inagaki et al.
patent: 4592314 (1986-06-01), Tsuchida
patent: 4617881 (1986-10-01), Aoi et al.
patent: 4739735 (1988-04-01), Ichida et al.

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