US4704864A
Expired / Lapsed
US
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Spoke arrangement for a hydrodynamic torque converter
Assignee: Daimler Benz AG
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Filing: 1986-09-04
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Granted: 1987-11-10
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Expires: 2006-09-04
Abstract
Abstract In a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, having a spoke for connecting a wheel hub to an external ring of the spoked drive wheel, the spoke cross-section is designed in the shape of a wing profile extending along a profile main axis. The profile main axis is transverse to the axis of rotation of the wheel. In this way, the deterioration in the characteristics of the torque converter is kept as small as possible in both power splitting operation and in operation without power splitting.
Inventors
- 👤 Eberhard Frotschner
- 👤 Otto Worner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:08
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19921
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
100 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; and wherein the profile main axis is set at an acute angle of incidence relative to a plane perpendicular to the axis of rotation and transverse to the incident flow direction of fluids in the torque converter.
Claim 2
Dependent Claim
100 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; and wherein the profile main axis is set at an acute angle of incidence relative to a plane perpendicular to the axis of rotation and transverse to the incident flow direction of fluids in the torque converter.
Claim 3
Dependent Claim
17 words
A spoked drive wheel according to claim 1, wherein the angle of incidence is smaller than 20°.
Claim 4
Dependent Claim
16 words
A spoked drive wheel according to claim 2, wherein the angle of incidence is approximately 15°.
Claim 5
Dependent Claim
43 words
A spoked drive wheel according to claim 3, wherein the spoke axis, between the raidally outer and radially inner spoke ends, is inclined at an acute sweep-back angle relative to the radius of the wheel in the direction of rotation of the wheel.
Claim 6
Dependent Claim
16 words
A spoked drive wheel according to claim 4, wherein the sweep-back angle is smaller than 45°.
Claim 7
Dependent Claim
15 words
A spoked drive wheel according to claim 5, wherein the sweep-back angle is approximately 35°.
Claim 8
Dependent Claim
19 words
A spoked drive wheel according to claim 1, wherein the spoke cross-section is symmetrical about the profile main axis.
Claim 9
Dependent Claim
26 words
A spoked drive wheel according to claim 1, wherein the spoke cross-section is centered on the spoke axis over substantially the length whole of the spoke.
Claim 10
Dependent Claim
18 words
A spoked drive wheel according to claim 1, wherein the number of spokes is not more than eight.
Claim 11
Dependent Claim
33 words
A spoked drive wheel according to claim 1, wherein the spoke width measured transverse to the profile main axis is smaller than 2 mm on at least one of the two profile ends.
Claim 12
Dependent Claim
16 words
A spoked drive wheel according to claim 10 wherein the spoke width is approximately 0.8 mm.
Claim 13
Dependent Claim
97 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; wherein the two side surfaces of the spoke cross-section have an acute edge angle in the region of at least one of the profile ends; and wherein the edge angle is smaller than 20°.
Claim 14
Dependent Claim
97 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; wherein the two side surfaces of the spoke cross-section have an acute edge angle in the region of at least one of the profile ends; and wherein the edge angle is smaller than 20°.
Claim 15
Dependent Claim
15 words
A spoked drive wheel according to claim 12, wherein the edge angle is approximately 16°.
Claim 16
Dependent Claim
114 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; wherein the two side surfaces of the spoke cross-section have an acute edge angle in the region of at least one of the profile ends; and wherein the spoke width measured transverse to the profile main axis is smaller than 2 mm on at least one of the two profile ends.
Claim 17
Dependent Claim
114 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; wherein the two side surfaces of the spoke cross-section have an acute edge angle in the region of at least one of the profile ends; and wherein the spoke width measured transverse to the profile main axis is smaller than 2 mm on at least one of the two profile ends.
Claim 18
Dependent Claim
16 words
A spoked drive wheel according to claim 14, wherein the spoke width is approximately 0.8 mm.
Claim 19
Dependent Claim
86 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; and including an external ring having a fastening eye on at leat one spoke in the region of the radially outer spoke end.
Claim 20
Dependent Claim
86 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; and including an external ring having a fastening eye on at leat one spoke in the region of the radially outer spoke end.
Claim 21
Dependent Claim
99 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; and wherein the spoke axis between the radially outer and radially inner spoke ends is inclined at an acute sweep-back angle relative to the radius of the wheel in the direction of rotation of the wheel.
Claim 22
Dependent Claim
99 words
In a spoked drive wheel having spoke for connecting a wheel hub to an external ring of a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, comprising: the spoke having cross-section extending along a profile main axis in the shape of a wing profile and the profile main axis being transverse to the axis of rotation of the wheel; and wherein the spoke axis between the radially outer and radially inner spoke ends is inclined at an acute sweep-back angle relative to the radius of the wheel in the direction of rotation of the wheel.
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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) | 1990-11-09 | 1991-05-11 | 1991-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-09 | 1995-05-11 | 1995-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-09 | 1999-05-11 | 1999-11-10 | $7700.00 | Window Closed / Lapsed |