Invention Application
- Patent Title: TRACTION DRIVE SHAFT SEAL
- Patent Title (中): 牵引驱动轴封
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Application No.: PCT/US2005001425Application Date: 2005-01-14
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Publication No.: WO2005071290A2Publication Date: 2005-08-04
- Inventor: DEAN W CLARK
- Applicant: HAMILTON SUNDSTRAND
- Assignee: HAMILTON SUNDSTRAND
- Current Assignee: HAMILTON SUNDSTRAND
- Priority: US75848204 2004-01-15
- Main IPC: F01D11/00
- IPC: F01D11/00 ; F01D25/18 ; F04D29/12 ; F16C33/76 ; F16J15/00 ; F16J15/34
Abstract:
A rotating shaft seal assembly for a shaft supported for rotation within a housing includes a traction drive rotating a seal ring about the shaft at a speed different from the shaft. The seal ring supports a plurality of seal elements rotated at the speed different from the shaft. The reduced speed of the sealing elements and reduced pressure at each seal reduces the PV level allowing the use of known sealing materials in applications otherwise not within applicable PV levels.
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