Pulsation damper designed to ensure alignment of diaphragm during assembling
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United States of America Patent
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Issued Date -
Feb 23, 2006
app pub date -
Aug 17, 2005
filing date -
Aug 18, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A pulsation damper for use in an automotive fuel supply system is provided which consists of a casing, a diaphragm, and a cover. The cover is joined to the casing with the diaphragm nipped therebetween. The pulsation damper also includes a supporting member secured to a central portion of the diaphragm to support the diaphragm physically. The supporting member has a protrusion fitted in a recess formed in the casing to hold the supporting member from moving in an unwanted direction, thereby ensuring coaxial alignment of the diaphragm with the casing when the cover is joined to the casing. The protrusion may alternatively be formed on the casing, while the recess may be formed in the supporting member.
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