Invention Grant
- Patent Title: Carbon hydrostatic face seal
- Patent Title (中): 碳静压面密封
-
Application No.: US12011480Application Date: 2008-01-25
-
Publication No.: US08206083B2Publication Date: 2012-06-26
- Inventor: Glenn M. Garrison
- Applicant: Glenn M. Garrison
- Applicant Address: US PA Kulpsville
- Assignee: Stein Seal Company
- Current Assignee: Stein Seal Company
- Current Assignee Address: US PA Kulpsville
- Agent Michael Crilly, Esq.
- Main IPC: F01D11/00
- IPC: F01D11/00 ; F04D29/08

Abstract:
A force balanced seal for use with a rotor in the turbomachine has a member in opposed facing disposition to the rotor with a face dam portion of the member having a surface parallel with the sealing surface of the rotor, a groove in the member facing the rotor and bounding the face dam surface, an air bearing surface in the member facing the sealing surface of the rotor, a second passageway through the member from the air bearing surface to a radially outwardly facing surface of the member and a first passageway through the member from the groove to a member surface facing oppositely from the air bearing surface. An operating clearance between the seal and rotor is maintained by a closing force, exerted through a plurality of springs, and an opposing opening force created by pressurized air venting through the second passageway to the first passageway.
Public/Granted literature
- US20080310953A1 Carbon hydrostatic face seal Public/Granted day:2008-12-18
Information query