Patent US3563618A successfully refreshed from Google Patents.
US3563618A
Expired / Lapsed
US
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Gas- or liguid-lubricated hydrostatic double-action thrust
Assignee: Individual
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Filing: 1969-08-13
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Granted: 1971-02-16
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Expires: 1989-08-13
Abstract
Abstract A gas- or liquid-lubricated hydrostatic double-action thrust bearing intended for taking axial loads in machines, for example, in centrifugal pumps. The bearing has a disc-shaped thrust plate with collars located at both sides thereof, the collars being mounted in the stationary body of the machine, which is also provided with passages for supplying power fluid into the face space, which, together with a collar, forms an annular chamber. The annular chamber through annular gaps communicates with a reduced pressure space and with a chamber located at the opposite face of the thrust plate, which, in turn, communicates with the reduced pressure chamber through a gap which is closer to the longitudinal axis of the thrust bearing than the said annular gaps.
Inventors
- 👤 Viktor Vasilievich Ivanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:25
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0681; F16C32/0692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A gas- or liquid-lubricated hydrostatic double-action thrust bearing for taking axial forces in machines, preferably in centrifugal pumps, comprising a shaft of the machine, a discshaped thrust plate mounted on said shaft, collars positioned at the faces of said thrust plate and arranged within the stationary portion of the machine, a first annular chamber formed by said thrust plate and by one of said collars, passages provided in the stationary portion of the machine and led into the face space of said thrust plate, which passages are intended for supplying power medium into said annular chamber, a second chamber arranged at the other face of said thrust plate and at the other collar and communicating with said first annular chamber as well as with said second chamber, a reduced pressure space communicating with said first annular chamber and with said second chamber, gaps for communicating said first annular chamber with said reduced pressure space and with said second chamber, a gap for communicating said second chamber with said reduced pressure space, this gap being closer to the longitudinal axis of said thrust plate than said gaps for communicating said first annular chamber with said reduced pressure space and with said second chamber.
Claim 2
Dependent Claim
202 words
A gas- or liquid-lubricated hydrostatic double-action thrust bearing for taking axial forces in machines, preferably in centrifugal pumps, comprising a shaft of the machine, a discshaped thrust plate mounted on said shaft, collars positioned at the faces of said thrust plate and arranged within the stationary portion of the machine, a first annular chamber formed by said thrust plate and by one of said collars, passages provided in the stationary portion of the machine and led into the face space of said thrust plate, which passages are intended for supplying power medium into said annular chamber, a second chamber arranged at the other face of said thrust plate and at the other collar and communicating with said first annular chamber as well as with said second chamber, a reduced pressure space communicating with said first annular chamber and with said second chamber, gaps for communicating said first annular chamber with said reduced pressure space and with said second chamber, a gap for communicating said second chamber with said reduced pressure space, this gap being closer to the longitudinal axis of said thrust plate than said gaps for communicating said first annular chamber with said reduced pressure space and with said second chamber.
References Cited (Backward Citations)
DE223691C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |