Patent US5129328A successfully refreshed from Google Patents.
US5129328A
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US
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Gas turbine locomotive fueled by compressed natural Gas
Assignee: AP APPLIED POWER & PROPULSION Inc
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Filing: 1991-05-28
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Granted: 1992-07-14
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Expires: 2011-05-28
Abstract
Abstract A gas turbine powered locomotive. There is a gas turbine mounted on a locomotive frame. A high speed alternator is directly connected to said gas turbine. A series of rectifiers, thyristors, smoothing reactors are connected to the alternator to form a high speed electric traction generator. Traction motors are connected by means of a power controller, for controlling engine loading to the generator for driving a number of axles on the locomotive. Gas storage tanks are located on the locomotive frame.
Inventors
- 👤 Frank W. Donnelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:22
CPC Classifications
B; B61; B61C; B61C5/00; F; F05; F05B; F05B2220/00; F05B2220/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A compressed natural gas locomotive powered by a compact gas turbine, comprising: a gas turbine mounted on a locomotive frame; a high speed alternator directly connected to said gas turbine; a series of rectifiers, thyristors, smoothing reactors connected to said alternator to form a high speed electric traction generator; traction motors connected by means of a power controller for controlling engine loading to said traction generator for driving a number of axles on said locomotive; means for connection to additional locomotive units that each include a gas turbine to form a multiple unit combination including means for independently controlling each of said additional units such that each of said gas turbines is capable of operating in an on-off mode at substantially full output in order to drive said multiple unit combination; and gas storage means on said locomotive frame comprising natural gas containers laid along the length of said frame.
Claim 2
Dependent Claim
150 words
A compressed natural gas locomotive powered by a compact gas turbine, comprising: a gas turbine mounted on a locomotive frame; a high speed alternator directly connected to said gas turbine; a series of rectifiers, thyristors, smoothing reactors connected to said alternator to form a high speed electric traction generator; traction motors connected by means of a power controller for controlling engine loading to said traction generator for driving a number of axles on said locomotive; means for connection to additional locomotive units that each include a gas turbine to form a multiple unit combination including means for independently controlling each of said additional units such that each of said gas turbines is capable of operating in an on-off mode at substantially full output in order to drive said multiple unit combination; and gas storage means on said locomotive frame comprising natural gas containers laid along the length of said frame.
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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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |