Engine throttle blade sealing

Details Engine throttle blade sealing Engine throttle blade sealing

1991-06-25

1992-03-24

Wolfe, Willis R.

Valves and valve actuation

Rotary valves

Butterfly

29890127, F02D 910, F16K 1226, B21D 5384

Patent

active

050980645

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: 3050781 (1962-08-01), Killian
patent: 3193914 (1965-07-01), Killian
patent: 3275289 (1966-09-01), Fawkes
patent: 3318567 (1967-05-01), Gifford
patent: 3593400 (1971-07-01), Geiselman et al.
patent: 4154426 (1979-05-01), Santy et al.
patent: 4510965 (1985-04-01), Peroux et al.
patent: 4773625 (1988-09-01), Calvin

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