Engine throttle blade sealing

Details Engine throttle blade sealing Engine throttle blade sealing

1991-06-25

1992-01-21

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Specific throttle valve structure

251306, 251357, F02M 700, F16K 1226

Patent

active

050819720

ABSTRACT:
The throttle blade is made to have a resilient outer margin whose outside diameter is circular and essentially equal to the diameter of the throttle bore within which the blade is disposed. The blade can maintain control even at engine idle. Several embodiments of throttle blade are disclosed. In one, an elastomeric seal is insert-molded onto the main blade body; in another, the seal is a multitude of short bristles; in still another, it is a stamped polytetrafluoroethylene part. There is also a special construction for assembling the shaft.

REFERENCES:
patent: 2886284 (1959-05-01), Wheatley
patent: 4154426 (1979-05-01), Santy et al.
patent: 4176823 (1979-12-01), Gliatas
patent: 4333429 (1982-06-01), Iiyama et al.
patent: 4344396 (1982-08-01), Yamada
patent: 4480367 (1984-11-01), Johnson et al.
patent: 4711427 (1987-12-01), Holtgraver
patent: 4836163 (1989-06-01), Muschalik
patent: 4880207 (1989-11-01), Matsumoto et al.

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