Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part
Patent
1989-05-26
1990-05-22
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
4151745, 415229, F01D 1108
Patent
active
049273264
ABSTRACT:
Damping seals, damping bearings and a support sleeve for the ball bearings of a high speed rotor, the ball bearings being a duplex set having the outer races packaged tightly within the sleeve while the sleeve provides a gap with a support member so that the bearings may float with the sleeve. The sleeve has a web extending radially between the pair of outer races and acts in conjunction with one or more springs to apply an axial preload to the outer races. The sleeves have a series of slits which provide the sleeve with a spring-like quality so that the spring acts to center the rotor upon which the bearings are mounted during start up and shut down. A damping seal or a damping bearing may be used in conjunction with the ball bearings and supporting sleeve, the damping seal and damping bearing having rotor portions including rigid outer surfaces mounted within the bore of a stator portion triangular shaped pockets on the surface facing the rotor. Axial gates are provided between adjacent pockets in sections of the stator permitting fluid to flow with less resistance axially relative to the flow of fluids circumferentially between the rotor and the stator.
REFERENCES:
patent: 3263913 (1966-08-01), Fuhrmann et al.
patent: 4463956 (1984-08-01), Malott
patent: 4543038 (1985-09-01), Kitaguchi
patent: 4545586 (1985-10-01), von Pragenau
patent: 4652209 (1987-03-01), Buddenbohm
patent: 4808070 (1989-02-01), Fonda-Bonardi
Garrett Robert E.
Kwon John T.
Manning John R.
Seemann Jerry L.
Sheehan William J.
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