US4947707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for decoupling the torsional vibrations in a gear transmission
Assignee: Dr Ing HCF Porsche AG
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Filing: 1988-09-19
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Granted: 1990-08-14
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Expires: 2008-09-19
Abstract
Abstract A toothed springy decoupling gear set consisting of a center gear and of two coaxial split gears abutting on both sides thereof serve as arrangement for decoupling torsional vibrations in a gear transmission, for example, in a control transmission of a reciprocating piston engine. Drawsprings located tangentially in the center gear protrude with their two spring ends out of the center gear and are suspended at the left and at the right split gear.
Inventors
- 👤 Reinhard Koenneker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:12
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/17; F16H55/18; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
141 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein the drawspring means are coil springs having two bent-off spring ends whose suspension points are disposed eccentrically to the longitudinal axis of the coil springs;
Claim 2
Dependent Claim
141 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein the drawspring means are coil springs having two bent-off spring ends whose suspension points are disposed eccentrically to the longitudinal axis of the coil springs;
Claim 3
Dependent Claim
21 words
An arrangement according to claim 1, wherein all three gears of the decoupling gear set means abut end-face at one another.
Claim 4
Dependent Claim
129 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, an decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear wherein the decoupling gear means includes four coil springs distributed symmetrically along its circumference.
Claim 5
Dependent Claim
129 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, an decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear wherein the decoupling gear means includes four coil springs distributed symmetrically along its circumference.
Claim 6
Dependent Claim
173 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, an decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein the drawspring means are coil springs having two bent-off spring ends whose suspension points are disposed eccentrically to the longitudinal axis of the coil springs, wherein all three gears of the decoupling gear set means abut end-face at one another and wherein at least some of the gears are provided with friction linings at their end faces.
Claim 7
Dependent Claim
173 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, an decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein the drawspring means are coil springs having two bent-off spring ends whose suspension points are disposed eccentrically to the longitudinal axis of the coil springs, wherein all three gears of the decoupling gear set means abut end-face at one another and wherein at least some of the gears are provided with friction linings at their end faces.
Claim 8
Dependent Claim
24 words
An arrangement according to claim 4, further comprising arresting bolt means for securing the axial position of the split gears to the center gear.
Claim 9
Dependent Claim
20 words
An arrangement according to claim 5, wherein the split gears are supported on star-shaped centering extensions of the center gear.
Claim 10
Dependent Claim
21 words
An arrangement according to claim 6, wherein the decoupling gear set means includes four coil springs distributed symmetrically along its circumference.
Claim 11
Dependent Claim
23 words
An arrangement according to claim 6, wherein the center gear is approximately twice as wide as the right, respectively, the left split gear.
Claim 12
Dependent Claim
136 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein for facilitating installation the relative position of the split gears in operable to be arrested by means of a pin.
Claim 13
Dependent Claim
136 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein for facilitating installation the relative position of the split gears in operable to be arrested by means of a pin.
Claim 14
Dependent Claim
133 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, further comprising arresting bolt means for securing the axial position of the split gears to the center gear.
Claim 15
Dependent Claim
133 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, further comprising arresting bolt means for securing the axial position of the split gears to the center gear.
Claim 16
Dependent Claim
147 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, an decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein all three gears of the decoupling gear set means abut end-face at one another, and wherein at least some of the gears are provided with friction linings at their end faces.
Claim 17
Dependent Claim
147 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, an decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein all three gears of the decoupling gear set means abut end-face at one another, and wherein at least some of the gears are provided with friction linings at their end faces.
Claim 18
Dependent Claim
131 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein at least some of the gears are provided with friction linings at their end faces.
Claim 19
Dependent Claim
131 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein at least some of the gears are provided with friction linings at their end faces.
Claim 20
Dependent Claim
130 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein the decoupling gear set means includes four coil springs distributed symmetrically along its circumference.
Claim 21
Dependent Claim
130 words
An arrangement for decoupling torsional vibrations in a gear transmission comprising a driving gear, a driven gear, a decoupling gear set means meshing with both the driving and driven gear, said decoupling gear set means including three split gears arranged coaxially adjacent one another and mutually stressed by spring means, one of said gears being a left split gear, another a center gear and still another a right split gear, the spring means being in the form of drawspring means arranged in apertures of the center gear and disposed tangentially thereto which are suspended with their one spring ends at the left split gear and with the other spring ends at the right split gear, wherein the decoupling gear set means includes four coil springs distributed symmetrically along its circumference.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |