US3868818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive gas turbine engine
Assignee: Nissan Motor Co Ltd
•
Filing: 1973-02-28
•
Granted: 1975-03-04
•
Expires: 1993-02-28
Abstract
Abstract An automotive gas turbine engine including first and second stage gas turbines of which the first stage gas turbine only is rendered operative when power demand is at low level whereas when power demand is at high level both the first and the second stage gas turbines are rendered operative to produce high power output. The first stage gas turbine includes an air compressor, a regenerator communicating with the air compressor and adapted to preheat air subsequently utilized, a combustor communicating with the regenerator to receive heated air therefrom, a gas generator turnine driven by high temperature gas from the combustor and a power turbine driven by the same. The second stage gas turbine includes a flow control valve communicating with the air compressor and adapted to control the amount of air flow passing therethrough, a combustor communicating with the flow control valve, and a power turbine communicating with the combustor of the second stage gas turbine adapted to be driven by a high temperature gas produced in he last-mentioned combustor, the flow control valve being opened to permit air flow from the air compressor into the combustor at the second stage gas turbine for generating high temperature gas therein when increased power is required from the engine.
Inventors
- 👤 Takane Itoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:21
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/30; F01; F01K; F01K21/00; F01K21/04; F01K21/047; F02C3/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
410 words
A gas turbine engine for a motor driven vehicle comprising in combination, a first stage gas turbine including an air compressor, a combustor communicating with said air compressor and a source of fuel and generating working gases when said motor driven vehicle is running under light and heavy loads, a gas generator turbine communicating with said combustor and driven by said working gases delivered thereform, a shaft connecting said gas generator turbine to said air compressor, a power turbine coaxial with said gas generator turbine, means providing communication between said power turbine and said gas generator turbine and said power turbine being driven by said working gases delivered therethrough, a regenerator disposed between said air compressor and said power turbine, means providing communication between said regenerator with an outlet side of said power turbine of said first stage gas turbine to receive working gases therefrom for preheating air for deliverly to said combustor of said first stage gas turbine, a second stage gas turbine including a combustor communicating with said air compressor of said first stage gas turbine and said source of fuel, said lastmentioned combustor generating working gases when said motor driven vehicle is running under heavy load, and a power turbine rotatable about an axis parallel to that of said first stage turbine, the last-mentioned power turbine communicating with the last-mentioned combustor and driven by said last-mentioned working gases delivered therefrom, a flow control valve disposed between said air compressor of said first stage gas turbine and said last-mentioned combustor of said second stage gas turbine and providing communication therebetween when said motor driven vehicle is running under heavy load, a source of water, means for injecting water into said combustors of said first and second stage gas turbine when said motor driven vehicle is running under light and heavy loads, said water injecting means including respective water metering valves disposed between said source of water and said combustors of said first and second stage gas turbines for controlling the amount of water flow passing therethrough, first and second gear means connected to said power turbines of said first and second stage gas turbines, respectively, an output shaft connected to said first and second gear means, and a clutch mechanism disposed between said second gear means and said power turbine of said second stage gas turbine and providing a clutching and declutching drive connection between said output shaft and said power turbine of said second stage gas turbine.
Claim 2
Dependent Claim
410 words
A gas turbine engine for a motor driven vehicle comprising in combination, a first stage gas turbine including an air compressor, a combustor communicating with said air compressor and a source of fuel and generating working gases when said motor driven vehicle is running under light and heavy loads, a gas generator turbine communicating with said combustor and driven by said working gases delivered thereform, a shaft connecting said gas generator turbine to said air compressor, a power turbine coaxial with said gas generator turbine, means providing communication between said power turbine and said gas generator turbine and said power turbine being driven by said working gases delivered therethrough, a regenerator disposed between said air compressor and said power turbine, means providing communication between said regenerator with an outlet side of said power turbine of said first stage gas turbine to receive working gases therefrom for preheating air for deliverly to said combustor of said first stage gas turbine, a second stage gas turbine including a combustor communicating with said air compressor of said first stage gas turbine and said source of fuel, said lastmentioned combustor generating working gases when said motor driven vehicle is running under heavy load, and a power turbine rotatable about an axis parallel to that of said first stage turbine, the last-mentioned power turbine communicating with the last-mentioned combustor and driven by said last-mentioned working gases delivered therefrom, a flow control valve disposed between said air compressor of said first stage gas turbine and said last-mentioned combustor of said second stage gas turbine and providing communication therebetween when said motor driven vehicle is running under heavy load, a source of water, means for injecting water into said combustors of said first and second stage gas turbine when said motor driven vehicle is running under light and heavy loads, said water injecting means including respective water metering valves disposed between said source of water and said combustors of said first and second stage gas turbines for controlling the amount of water flow passing therethrough, first and second gear means connected to said power turbines of said first and second stage gas turbines, respectively, an output shaft connected to said first and second gear means, and a clutch mechanism disposed between said second gear means and said power turbine of said second stage gas turbine and providing a clutching and declutching drive connection between said output shaft and said power turbine of said second stage gas turbine.
References Cited (Backward Citations)
US1608445A
Cited
US2580591A
Cited
US2651911A
Cited
US2750738A
Cited
US3163983A
Cited
US3358441A
Cited
US3585795A
Cited
US3635019A
Cited
US3621654A
Cited
US3722213A
Cited
US3710576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |