Method for the production of a throttle valve port

Details Method for the production of a throttle valve port Method for the production of a throttle valve port

2008-05-06

2008-05-06

Cozart, Jermie E. (Department: 3726)

Metal working

Method of mechanical manufacture

Valve or choke making

C029S890124, C029S890127, C029S527500, C251S367000, C123S337000

Reexamination Certificate

active

11014943

ABSTRACT:
This invention relates of the problem, to create a butterfly valve neck without an emergence of a gap between the butterfly valve neck and the butterfly valve. This invention disposes the problem trough a parted butterfly valve neck, with between attached sealing, where the butterfly valve rest on in the closed location. This invention causes, to reduce considerable the leakage air quantity, by the absent of a gap, between the butterfly valve neck and the butterfly valve in the closed location. An inhibition of the butterfly valve in the parted butterfly valve is no more possible. By the inventive sealing of this invention, the motor can operate with a lower idling speed and a smaller emission. Further, an advantage of this invention is the regulation (adjustment) of the dimension of the parted butterfly valve and the sealing, where-by each of the rule curves by starting will achieved from the closed location.

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