Invention Grant
- Patent Title: Seal apparatus
- Patent Title (中): 密封装置
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Application No.: US11166727Application Date: 2005-06-27
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Publication No.: US07249769B2Publication Date: 2007-07-31
- Inventor: John R Webster
- Applicant: John R Webster
- Applicant Address: GB London
- Assignee: Rolls-Royce plc
- Current Assignee: Rolls-Royce plc
- Current Assignee Address: GB London
- Agency: Manelli Denison & Selter PLLC
- Agent W. Warren Taltavull
- Priority: GB0028408.3 20001122
- Main IPC: F01D11/02
- IPC: F01D11/02
Abstract:
A seal (40) provides sealing between two pressure zones (60, 62) and a rotating and non-rotating member (42, 52) by providing a first sealing member (46) between two seal lands (48, 50). A second seal (64) is mounted between the non-rotating member (52, 58) and one of the seal lands (50, 66) so as to control pressure around the seal lands (48, 50).
Public/Granted literature
- US20050285345A1 Seal apparatus Public/Granted day:2005-12-29
Information query
