Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Labyrinth seal
Reexamination Certificate
2007-07-10
2007-07-10
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Labyrinth seal
Reexamination Certificate
active
11121928
ABSTRACT:
A seal system comprises a rotor and a stator. First and second cavities are defined between the rotor and the stator. A plurality of seals for inhibiting a flow of gas through the cavities are provided. Relative motion between the rotor and the stator can cause a flow of gas through the cavities via the seals. The. seals are arranged such that an increase in pressure in one of the first and second cavities is offset by a decrease in pressure in the other of the first and second cavities.
REFERENCES:
patent: 3549270 (1970-12-01), Petrie et al.
patent: 4447190 (1984-05-01), Campbell
patent: 4864810 (1989-09-01), Hines
patent: 5222742 (1993-06-01), Roberts
patent: 2002/0028136 (2002-03-01), Briesenick et al.
patent: 2003/0012651 (2003-01-01), Arilla et al.
patent: 2003/0223893 (2003-12-01), Coulon et al.
patent: 2 490 619 (2004-01-01), None
patent: 0 919 700 (1999-06-01), None
patent: 1 057 976 (2000-12-01), None
patent: 1 471 211 (2004-10-01), None
patent: 895467 (1962-05-01), None
patent: 2 111 598 (1983-07-01), None
Look Edward K.
Oliff & Berridg,e PLC
Rolls-Royce PLC
Wiehe Nathan
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