Hybrid seal and system and method incorporating the same

Details Hybrid seal and system and method incorporating the same Hybrid seal and system and method incorporating the same

2006-08-15

2006-08-15

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S116000, C415S173300, C415S174200, C277S644000, C277S646000, C277S647000, C277S581000

Reexamination Certificate

active

07090459

ABSTRACT:
A seal having a first seal mechanism adapted for insertion between a first structure and a second structure, wherein the first structure is in communication with a first medium and the second structure is in communication with a second medium. The seal also includes a second seal mechanism, which is pressuringly biasable against the first seal mechanism and against the second structure by the second medium. In certain embodiments, a system has a first structure in communication with a first medium and a second structure houses a seal assembly between the first and second structures. The seal assembly includes an interface seal disposed against the first structure and a flexible seal pressuringly biased against the second structure and the interface seal by a second medium.

REFERENCES:
patent: 3300178 (1967-01-01), Rizk et al.
patent: 5014917 (1991-05-01), Sirocky et al.
patent: 5044823 (1991-09-01), Burgess
patent: 6039325 (2000-03-01), Steinetz et al.
Patrick H. Dunlap, Jr.; Bruce M. Steinetz; Jeffrey J. DeMange; Shawn C. Taylor; Title: “Toward an Improved Hypersonic Engine Seal”; AIAA-2003-4834; 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference; Jul. 21-23, 2003; pp. 1-19.

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