Canister purge valve noise attenuation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 25, 2004
Grant Date -
N/A
app pub date -
Oct 30, 2000
filing date -
Oct 28, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve assembly and method for regulating a fluid flow and attenuating noise. The valve assembly comprises a body having a passage extending between a first port and a second port, a seat defining a portion of the passage, a member movable with respect to the seat, an actuator moving the member from the first configuration to the second configuration, and a damper movable with respect to the actuator and located at a radial gap between the member and the actuator. The member moves generally along an axis between a first configuration prohibiting fluid flow through the seat and a second configuration permitting fluid flow through the seat. The member includes a first portion adapted to sealingly engage the seat in the first configuration, and a second portion extending along the axis between a first section that is distal from the first portion and a second section that is fixed to the first portion. The actuator has an aperture extending along the axis and generally receiving the second portion. The aperture includes a first segment generally guiding movement of the first section, and a second segment generally guiding movement of the second section.
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