US3797232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle gas turbines with ratio couplings therebetween-therefor
Assignee: Daimler Benz AG
•
Filing: 1973-04-05
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Granted: 1974-03-19
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Expires: 1993-04-05
Abstract
Abstract Gas turbine unit for motor vehicles in which the compressor turbine is selectively connected to the output shaft through a controllable fluid coupling so as to provide a transfer of power to the output shaft from the compressor turbine during partialload operation and a transfer of power from the output shaft to the compressor turbine during braking.
Inventors
- 👤 D Mueller
- 👤 W Jurisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:58
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/36; B; B60; B60K; B60K3/00; B60K3/04; Y; Y10; Y10S; Y10S74/00; Y10S74/05; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
139 words
In a gas turbine unit for the driving of vehicles, especially motor vehicles, including a compressor and a compressor turbine mounted to a drive shaft, and a power output turbine responsive to said compressor turbine for driving a power output shaft, the improvement comprising coupling means for selectively coupling said compressor turbine with said power output shaft to controllably transfer power therebetween, and speed reduction means provided between said compressor turbine and said output shaft which is controllable for engine braking to a negative difference and for partial-load driving to a positive difference in rotating speed relative to the speed of said output turbine, said coupling means including a controllable fluid coupling having one coupling part connected to said speed reduction means between said compressor turbine and said output shaft and another coupling part connected to said compressor turbine.
Claim 2
Dependent Claim
139 words
In a gas turbine unit for the driving of vehicles, especially motor vehicles, including a compressor and a compressor turbine mounted to a drive shaft, and a power output turbine responsive to said compressor turbine for driving a power output shaft, the improvement comprising coupling means for selectively coupling said compressor turbine with said power output shaft to controllably transfer power therebetween, and speed reduction means provided between said compressor turbine and said output shaft which is controllable for engine braking to a negative difference and for partial-load driving to a positive difference in rotating speed relative to the speed of said output turbine, said coupling means including a controllable fluid coupling having one coupling part connected to said speed reduction means between said compressor turbine and said output shaft and another coupling part connected to said compressor turbine.
Claim 3
Dependent Claim
30 words
A gas turbine unit according to claim 1, wherein said another coupling part of said coupling means is connected to said compressor turbine through a two-step controllable speed reduction mechanism.
Claim 4
Dependent Claim
29 words
A gas turbine unit according to claim 2, including partial-load regulator means responsive to a brake instruction for controlling operation of said coupling means and said speed reduction mechanism.
Claim 5
Dependent Claim
39 words
A gas turbine unit according to claim 3, wherein said speed reduction mechanism includes a planetary gear, braking means for braking said planetary gear during partial-load operation, and Freewheeling means coupling said planetary gear to said another coupling part.
Claim 6
Dependent Claim
30 words
A gas turbine unit according to claim 4, including speed limiter means connected to said compressor turbine for controlling the fluid supplied to said controllable fluid coupling during engine braking.
Claim 7
Dependent Claim
30 words
A gas turbine unit according to claim 1, including speed limiter means connected to said compressor turbine for controlling the fluid supplied to said controllable fluid coupling during engine braking.
Claim 8
Dependent Claim
46 words
A gas turbine unit according to claim 2, wherein said speed reduction mechanism includes a planetary gear, braking means for braking said planetary gear, braking means for braking said planetary gear during partial-load operation, and freewheeling means coupling said planetary gear to said another coupling part.
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |