Valve rotating device

Details Valve rotating device Valve rotating device

1980-12-10

1984-01-17

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

F01L 132

Patent

active

044258828

ABSTRACT:
A valve rotator rotates a valve in an internal combustion engine about the axis of the stem of the valve. The valve is biased closed by a valve biasing spring. The valve rotator includes a body attached to and rotatable with the valve stem. The body has at least one groove therein extending at least partially around said valve stem. A coil spring element is longitudinally disposed within the groove. A collar receives the valve biasing spring force and encircles the valve stem adjacent the body. A pair of spring washers encircle said valve stem and are interposed between the collar and the coil spring element. One of the spring washers side loads the coils of said coil spring element when the valve is closed. The other of the spring washers acts between the collar and the one spring washer and isolates surges of the valve spring of a predetermined magnitude from the one spring washer and thereby from the coils of the coil spring element.

REFERENCES:
patent: 2819706 (1958-01-01), Gammon
patent: 2855913 (1958-10-01), Geer
patent: 3421734 (1969-01-01), Updike et al.
patent: 3537325 (1970-11-01), Orent
patent: 3890943 (1975-06-01), Schowlau et al.
patent: 4094280 (1978-06-01), Updike
patent: 4154424 (1979-05-01), Cherrie
patent: 4227493 (1980-10-01), Updike

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