Patent US5055096A successfully refreshed from Google Patents.
US5055096A
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Differential gearing
Assignee: GKN Driveline International GmbH
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Filing: 1990-06-25
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Granted: 1991-10-08
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Expires: 2010-06-25
Abstract
Abstract A differential gearing comprises a carrier (1); output gears (3, 11); and differential gears (4, 5) in two sets meshing respectively with the output gears and directly or indirectly with one another. The differential gears are disposed asymmetrically about the carrier so that a resultant radial force acts on the output gears urging them into engagement with recesses in the carrier (1) or a support member (7) therein, so that the frictional inhibition of the differential action is increased.
Inventors
- 👤 Helmut Riemscheid
- 👤 Herbert Frielingsdorf
- 👤 Klaus Greulich
- 👤 Peter Amborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:04
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/28; F16H48/285
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
92 words
A self-inhibiting differential gearing comprising a carrier; two output gears disposed substantially co-axially in the carrier; a first set of differential gears engaging one of the output gears; and a second set of differential gears engaging the other output gear, the two sets of differential gears engaging one another at least indirectly; wherein the differential gears are circumferentially disposed asymmetrically around the carrier, and the output gears are disposed in recesses in the carrier such that relative radial displacement is possible between the output gears and recesses to produce frictional forces therebetween.
Claim 2
Dependent Claim
92 words
A self-inhibiting differential gearing comprising a carrier; two output gears disposed substantially co-axially in the carrier; a first set of differential gears engaging one of the output gears; and a second set of differential gears engaging the other output gear, the two sets of differential gears engaging one another at least indirectly; wherein the differential gears are circumferentially disposed asymmetrically around the carrier, and the output gears are disposed in recesses in the carrier such that relative radial displacement is possible between the output gears and recesses to produce frictional forces therebetween.
Claim 3
Dependent Claim
24 words
A differential gearing according to claim 1 wherein the differential gears are disposed substantially all in one half of the circumference of the carrier.
Claim 4
Dependent Claim
23 words
A differential gearing according to claim 1 wherein the output gears have toothed portions directly supported in the recesses in the differential carrier.
Claim 5
Dependent Claim
43 words
A differential gearing according to claim 1 wherein the output gears have toothed portions with a clearance from the recesses wherein they are accommodated, and journal portions at the end of the toothed portions slidably supported in the recesses in the differential carrier.
Claim 6
Dependent Claim
32 words
A differential gearing according to claim 1 wherein the output gears have obtuse angled frusto-conical surfaces at the ends of their toothed portions, supported by complementary frusto-conical surfaces in the differential carrier.
Claim 7
Dependent Claim
23 words
A differential gearing according to claim 1 wherein the differential gears have toothed portions directly supported in the recesses in the differential carrier.
Claim 8
Dependent Claim
43 words
A differential gearing according to claim 1 wherein the differential gears have toothed portions with a clearance from the recesses wherein they are accommodated, and journal portions at the end of the toothed portions slidably supported in the recesses in the differential carrier.
Claim 9
Dependent Claim
32 words
A differential gearing according to claim 1 wherein the differential gears have toothed portions with obtuse angled frusto-conical surfaces at the ends thereof, supported by complementary frusto-conical surfaces in the differential carrier.
Claim 10
Dependent Claim
21 words
A differential gearing according to claim 1 wherein the output gears and differential gears have parallel axes and are helically toothed.
Claim 11
Dependent Claim
22 words
A differential gearing according to claim 1 wherein the output gears and differential gears have parallel axes and are straight-toothed spur gears.
Claim 12
Dependent Claim
15 words
A differential gearing according to claim 1 wherein the carrier comprises recesses for rotational balancing.
Claim 13
Dependent Claim
18 words
A differential gearing according to claim 1 wherein balancing weights are provided on or secured to the carrier.
Claim 14
Dependent Claim
54 words
A differential gearing according to claim 1 wherein the carrier comprises a support means for the differential gears and having said recesses for the output gears, the support means being displaceable in the differential carrier in the direction of the resultant of the gear forces determined by the asymmetrical arrangement of the differential gears.
Claim 15
Dependent Claim
36 words
A differential gearing according to claim 13 wherein guiding means operative between the differential carrier and the support means is provided for guiding the latter radially in the carrier in the direction of the resultant force.
Claim 16
Dependent Claim
24 words
A differential gearing according to claim 1 comprising inserts of friction material in the recesses for engagement by the differential gears and/or output gears.
Claim 17
Dependent Claim
29 words
A differential gearing according to claim 1 wherein the differential gears of the first set thereof are of a different diameter from the differential gears of the second set.
Claim 18
Dependent Claim
18 words
A differential gearing according to claim 1 wherein the output gears are of different diameter from one another.
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) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |