US Patent 6889956 Poppet valve bushing with tolerance ring
Patent 6889956 was granted and assigned to Delphi (company) on May, 2005 by the United States Patent and Trademark Office.
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Patent abstract
A pintle bushing assembly for a poppet valve assembly including a tolerance ring which is disposable between the pintle bushing and a bore in the body of the valve to both seal and center the bushing in the bore. The tolerance ring includes a plurality of radially-extending dimples which are deformable during assembly such that the valve pintle can be aligned coaxially with the valve seat under all conditions. An axial flange on the tolerance ring is sealed against axial surfaces of the valve body adjacent the bore and a flange on the bushing to prevent leakage past the bushing.
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Patent Inventor Names
Carlos A. Gutierrez0
Raul A. Bircann0
Date of Patent
May 10, 2005
0Patent Application Number
103745520
Date Filed
February 25, 2003
0Patent Primary Examiner
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US Patent 6889956 Poppet valve bushing with tolerance ring
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