US4037887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal-joint assemblies and self-aligning thrust bearings, especially for the shafts of rotating machines
Assignee: Safran Aircraft Engines SAS
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Filing: 1976-05-10
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Granted: 1977-07-26
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Expires: 1996-05-10
Abstract
Abstract A thrust-bearing and guiding assembly which permits limited angular displment of a rotating shaft in any axial plane while preventing axial translation motion of the shaft comprises a bearing support articulated within a stator housing. The bearing support has two spherical sliding zones which form part of spheres having different centers, one zone being adapted to cooperate with a complementary surface of a ring which is endowed with freedom of sliding motion in the transverse direction with respect to the axis of the rotor within the stator housing.
Inventors
- 👤 Roger Louis Elysee Germain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:46
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/06; F16C23/08; F16C23/082; F16C23/084; F16C19/00; F16C19/54; F16C19/541; F16C19/542; F16C19/543; F16C23/02; F16C23/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
96 words
A guiding unit for preventing axial translational motion of a rotor shaft of a rotating machine with respect to a stator by permitting limited angular displacement of said shaft in any axial plane comprising a housing, a bearing support articulated within said housing, said housing being within said stator, two partial spherical sliding zones on said support having different centers, a ring, a complementary surface on said ring cooperating with one of said zones and said ring being free in a transverse direction with respect to the axis of rotation of said rotor within said housing.
Claim 2
Dependent Claim
96 words
A guiding unit for preventing axial translational motion of a rotor shaft of a rotating machine with respect to a stator by permitting limited angular displacement of said shaft in any axial plane comprising a housing, a bearing support articulated within said housing, said housing being within said stator, two partial spherical sliding zones on said support having different centers, a ring, a complementary surface on said ring cooperating with one of said zones and said ring being free in a transverse direction with respect to the axis of rotation of said rotor within said housing.
Claim 3
Dependent Claim
35 words
A guiding unit according to claim 1, wherein said two partial spherical sliding zones of said bearing support are convex and a complementary concave surface on said housing cooperating respectively with one of said zones.
Claim 4
Dependent Claim
59 words
A guiding unit according to claim 1, wherein one of said spherical sliding zones of said bearing support is convex a complementary concave surface on said housing cooperating with said one zone and the other of said spherical sliding zones of said bearing support is concave and a complementary convex surface on said housing cooperating with said other zone.
Claim 5
Dependent Claim
39 words
A guiding unit according to claim 1, wherein said two spherical sliding zones of said bearing support are concave and two complementary convex surfaces on said housing each of said convex surfaces cooperating with one of said sliding zones.
Claim 6
Dependent Claim
24 words
A rotating machine having a vertical axis, wherein said machine comprises at least one unit for guiding a rotor shaft according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |