US3844630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the soft and elastic bearing support of shafts rotating at high speeds
Assignee: Individual
•
Filing: 1973-08-31
•
Granted: 1974-10-29
•
Expires: 1993-08-31
Abstract
Abstract Apparatus for supporting a rotatable shaft including a roller or ball bearing directly rotatably supporting the shaft, an inner bearing body directly supporting the bearing which has an annular flange extending radially outwardly, and an outer bearing body in surrounding relationship to the inner body with the annular flange projecting into an annular recess of the outer body and with the bodies spaced axially and radially from one another to form respective partial pressure medium chambers at respective opposite axial sides of the flange. Pressure oil is continuously supplied to the pressure medium chambers to serve as a cushion for axially and radially directed force transfers between the inner and outer bearing bodies. In order to accommodate axial loading of the shaft in one direction, means are provided for effecting a total higher fluid pressure force in one direction against the flange than in the opposite direction. In a first embodiment, the different pressure force is obtained by separate fluid supply lines for supplying fluid at different pressures to the respective chambers. A second preferred embodiment includes a common pressure line for supplying fluid at the same pressure to both chambers, with one of the chambers being designed to have a larger pressure surface than the other.
Inventors
- 👤 K Lechner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/04; F16C27/045; F16C19/00; F16C19/54; F16C19/541; F16C19/542; F16C39/00; F16C39/04; F16C19/02; F16C19/14; F16C19/16; F16C19/163; F16C2300/00; F16C2300/20; F16C2300/22
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
191 words
Apparatus for supporting a rotatable shaft comprising: bearing means including means for directly rotatably supporting a shaft, an inner bearing body directly supporting an outer portion of said bearing means, said inner bearing body including an annular flange extending radially outwardly, an outer bearing body in surrounding relationship to said inner bearing body with said annular flange projecting into an annular recess of said outer bearing body, said inner and outer bearing bodies being normally spaced from one another in the radial direction and the walls of said recess being spaced axially from respective axially facing surfaces of said annular flange to form first and second partial pressure medium chambers at respective opposite axial sides of said flange, and pressure fluid supply means for supplying pressure fluid into each of said first and second chambers such that said pressure fluid serves to cushion axially and radially directed force transfers between said inner and outer bearing bodies, wherein means are provided for effecting a higher total axial fluid pressure force against said flange by the pressure fluid medium in said first chamber than by the pressure fluid medium in said second chamber.
Claim 2
Dependent Claim
191 words
Apparatus for supporting a rotatable shaft comprising: bearing means including means for directly rotatably supporting a shaft, an inner bearing body directly supporting an outer portion of said bearing means, said inner bearing body including an annular flange extending radially outwardly, an outer bearing body in surrounding relationship to said inner bearing body with said annular flange projecting into an annular recess of said outer bearing body, said inner and outer bearing bodies being normally spaced from one another in the radial direction and the walls of said recess being spaced axially from respective axially facing surfaces of said annular flange to form first and second partial pressure medium chambers at respective opposite axial sides of said flange, and pressure fluid supply means for supplying pressure fluid into each of said first and second chambers such that said pressure fluid serves to cushion axially and radially directed force transfers between said inner and outer bearing bodies, wherein means are provided for effecting a higher total axial fluid pressure force against said flange by the pressure fluid medium in said first chamber than by the pressure fluid medium in said second chamber.
Claim 3
Dependent Claim
28 words
Apparatus according to claim 1, wherein said first and second chambers are sealed off from one another by a seal extending around the circumference of said annular flange.
Claim 4
Dependent Claim
36 words
Apparatus according to claim 2, wherein each of said first and second chambers are sealed off against the outside at their respective axially outer ends by gasket rings interposed between the inner and outer bearing bodies.
Claim 5
Dependent Claim
13 words
Apparatus according to claim 1, wherein said fluid pressure medium is a liquid.
Claim 6
Dependent Claim
12 words
Apparatus according to claim 1, wherein said fluid pressure medium is oil.
Claim 7
Dependent Claim
15 words
Apparatus according to claim 1, wherein said outer bearing body is substantially fixed in position.
Claim 8
Dependent Claim
52 words
Apparatus according to claim 1, wherein said pressure fluid supply means includes a first supply line for supplying fluid at a first pressure to said first chamber and a second supply line for supplying fluid at a second pressure to said second chamber, said first pressure is higher than said second pressure.
Claim 9
Dependent Claim
33 words
Apparatus according to claim 1, wherein said pressure fluid supply means includes means for continuously supplying said pressure fluid, and wherein discharge means are provided for continuously discharging pressure fluid from said chambers.
Claim 10
Dependent Claim
52 words
Apparatus according to claim 8, wherein said pressure fluid supply means includes a first supply line for supplying fluid at a first pressure to said first chamber and a second supply line for supplying fluid at a second pressure to said second chamber, said first pressure is higher than said second pressure.
Claim 11
Dependent Claim
33 words
Apparatus according to claim 9, wherein said discharge means includes separate discharge lines leading from the respective chambers, and wherein a restrictor is provided in the discharge line leading from said first chamber.
Claim 12
Dependent Claim
49 words
Apparatus according to claim 1, wherein said pressure fluid supply means includes a common supply line for supplying both of said chambers with fluid at the same pressure, and wherein the annular flange exhibits a larger axially facing pressure surface in said first chamber than in said second chamber.
Claim 13
Dependent Claim
33 words
Apparatus according to claim 11, wherein said pressure fluid supply means includes means for continuously supplying said pressure fluid, and wherein discharge means are provided for continuously discharging pressure fluid from said chambers.
Claim 14
Dependent Claim
19 words
Apparatus according to claim 12, wherein said discharge means includes a common discharge line communicating directly with both chambers.
Claim 15
Dependent Claim
21 words
Apparatus according to claim 13, wherein a restrictor is provided in said common discharge line downstream of both of said chambers.
Claim 16
Dependent Claim
36 words
Apparatus according to claim 11, wherein each of said first and second chambers are sealed off against the outside at their respective axially outer ends by gasket rings interposed between the inner and outer bearing bodies.
Claim 17
Dependent Claim
12 words
Apparatus according to claim 13, wherein said fluid pressure medium is oil.
References Cited (Backward Citations)
US3332726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |