Attachment for a throttle plate to reduce sound

Details Attachment for a throttle plate to reduce sound Attachment for a throttle plate to reduce sound

2005-11-01

2005-11-01

Look, Edward K. (Department: 3751)

Valves and valve actuation

Rotary valves

Butterfly

C251S118000, C137S625310, C123S337000

Reexamination Certificate

active

06959915

ABSTRACT:
A block of material is attached to a surface of a throttle plate in a throttle body assembly for the purpose of reducing sound emanating from the throttle plate region. The block of material has a first edge attached proximate to a perimeter of the throttle plate and second edge disposed more proximate the pivot axis of the throttle plate. The block of material is formed to have a central region and two distal regions. The distal regions are hyperbolic in shape and taper toward the outer edges of the block of material. Two holes are formed through the block of material.

REFERENCES:
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patent: 6394068 (2002-05-01), Palotay
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U.S. Appl. No. 10/224,267, filed Aug. 20, 2002, Conley et al.
U.S, Appl. No. 10/104,232, filed Mar. 22, 2002, Elliot et al.
U.S. Appl. No. 10/256,291, filed Apr. 17, 2003, Ha.

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