Claims
- 1. A tolerance ring for radially positioning a bushing with respect to a bore in a valve body, said ring comprising:
a) a cylindrical portion having a base portion and a plurality of dimples extending radially from said base portion; and b) a flange portion attached to said cylindrical portion for forming seals against said valve body and said bushing.
- 2. A ring in accordance with claim 1 wherein said dimples extend only radially outwardly from said base portion.
- 3. A ring in accordance with claim 1 wherein said dimples extend only radially inwardly from said base portion.
- 4. A ring in accordance with claim 1 wherein said dimples extend radially both inwardly and outwardly from said base portion.
- 5. A ring in accordance with claim 1 wherein said flange is formed into at least one annular corrugation.
- 6. A poppet bushing assembly, comprising:
a) a poppet bushing having a first cylindrical portion; and b) a tolerance ring having a second cylindrical portion disposed on said first cylindrical portion, and having a plurality of dimples extending radially from said second cylindrical portion, and having a flange portion attached to said second cylindrical portion.
- 7. A poppet valve assembly comprising:
a) a valve body having a bore; b) a valve pintle bushing disposed in said bore; and c) a tolerance ring disposed between said body and said bushing, said ring including
a cylindrical portion having a base portion and a plurality of dimples extending radially from said base portion, and a flange portion attached to said cylindrical portion for forming a seal against said valve body and said bushing.
- 8. A poppet valve assembly in accordance with claim 7 wherein said valve is an exhaust gas recirculation valve.
RELATIONSHIP TO OTHER APPLICATIONS AND PATENTS
[0001] The present invention claims priority from U.S. Provisional Patent Application, Serial No. 60/403,986, filed Aug. 16, 2002.
Provisional Applications (1)
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Number |
Date |
Country |
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60403986 |
Aug 2002 |
US |