US3791138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engine regenerator
Assignee: Ford Motor Co
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Filing: 1972-06-19
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Granted: 1974-02-12
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Expires: 1992-06-19
Abstract
Abstract A heat regenerator system for a gas turbine engine comprising a main turbine housing adapted to enclosed the power turbine wheel and the compressor drive wheel, a cylindrical regenerator core having axial gas flow passages mounted for rotation about a vertical axis in the upper region of the housing, a regenerator cover in the housing defining a high pressure regenerator inlet chamber in communication with the outlet side of the compressor, a generally circular lower seal surface formed in the housing in registry with a lower peripheral seal for the regenerator core, an arcuate enclosure formed within the housing for receiving a peripheral portion of the regenerator core and forming an upper regenerator core seal support surface surrounding the low pressure exhaust region for the regenerator core and an exhaust gas flow passage formed in the housing and adapted to receive low pressure exhaust gases directed by the regenerator cover from the regenerator core exhaust region.
Inventors
- 👤 T Stockton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/08; F02C7/10; F02C7/105
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
A gas turbine engine comprising a turbine engine housing defining a high temperature gas receiving portion and a low temperature exhaust receiving portion, internal housing walls separating the housing portions, said housing portions being defined in part by internal walls having an upper regenerator sealing surface, said housing defining also an air intake chamber that is isolated from said housing portions, an arcuate enclosure formed in said housing at the upper region thereof, a rotary regenerator core journalled for rotation in the upper portion of said housing, said enclosure having ledge portions that overlie the periphery of said regenerator core in the region of the low temperature exhaust gases, a cover enclosing the upper portion of said housing and said regenerator core, an exhaust gas port formed in said housing, said cover being adapted to conduct inlet air from said inlet air chamber to the intake side of said regenerator core and to conduct exhaust gases from the outlet side of the regenerator core to said exhaust port.
Claim 2
Dependent Claim
168 words
A gas turbine engine comprising a turbine engine housing defining a high temperature gas receiving portion and a low temperature exhaust receiving portion, internal housing walls separating the housing portions, said housing portions being defined in part by internal walls having an upper regenerator sealing surface, said housing defining also an air intake chamber that is isolated from said housing portions, an arcuate enclosure formed in said housing at the upper region thereof, a rotary regenerator core journalled for rotation in the upper portion of said housing, said enclosure having ledge portions that overlie the periphery of said regenerator core in the region of the low temperature exhaust gases, a cover enclosing the upper portion of said housing and said regenerator core, an exhaust gas port formed in said housing, said cover being adapted to conduct inlet air from said inlet air chamber to the intake side of said regenerator core and to conduct exhaust gases from the outlet side of the regenerator core to said exhaust port.
Claim 3
Dependent Claim
71 words
The combination as set forth in claim 1 wherein said exhaust port communicates with the upper region of said housing and is in communication with the exhaust gas flow exit side of said regenerator core through said cover, and a gasket disposed between said cover and said housing, the portion of the gasket communicating with the exhaust flow gases being isolated from the high pressure intake portion of said regenerator core.
Claim 4
Dependent Claim
66 words
The combination as set forth in claim 1 wherein said cover includes a crossbar secured thereto and extending across its central portion, said crossbar having a lower sealing surface that is generally coplanar with the sealing surface formed about the margin of said arcuate enclosure in said housing and defining a sealing surface for the regenerator core seal on the outermost surface of said regenerator core.
Claim 5
Dependent Claim
66 words
The combination as set forth in claim 2 wherein said cover includes a crossbar secured thereto and extending across its central portion, said crossbar having a lower sealing surface that is generally coplanar with the sealing surface formed about the margin of said arcuate enclosure in said housing and defining a sealing surface for the regenerator core seal on the outermost surface of said regenerator core.
Claim 6
Dependent Claim
150 words
A gas turbine engine having a heat exchanger for transferring thermal energy from exhaust flow gas to turbine inlet air comprising a housing, said housing having a regenerator opening formed therein, a ledge extending around a portion of said opening, and projecting toward the center of said opening, an exit opening in said housing for accommodating exhaust gases leaving the engine, walls in said housing separating high pressure gases from low pressure gases in said engine, said walls having a shelf defining a sealing surface located a short distance below said opening in said housing, a rotary regenerator core rotatably mounted above said shelf with a portion of said core located between said shelf and said ledge, a cover fitted over said opening in said housing, and an exhaust port in said housing, said cover being adapted to transfer exhaust gases passing through said regenerator core to said exhaust port.
Claim 7
Dependent Claim
150 words
A gas turbine engine having a heat exchanger for transferring thermal energy from exhaust flow gas to turbine inlet air comprising a housing, said housing having a regenerator opening formed therein, a ledge extending around a portion of said opening, and projecting toward the center of said opening, an exit opening in said housing for accommodating exhaust gases leaving the engine, walls in said housing separating high pressure gases from low pressure gases in said engine, said walls having a shelf defining a sealing surface located a short distance below said opening in said housing, a rotary regenerator core rotatably mounted above said shelf with a portion of said core located between said shelf and said ledge, a cover fitted over said opening in said housing, and an exhaust port in said housing, said cover being adapted to transfer exhaust gases passing through said regenerator core to said exhaust port.
Claim 8
Dependent Claim
70 words
The combination as set forth in claim 5 wherein said cover includes a crossbar attached at its ends to said housing over a portion of said internal wall structure that divides said high pressure gases from said low pressure gases whereby rigidity of said cover is increased on the lower surface of said crossbar registering with said regenerator seal portion which surrounds an exhaust gas portion of the regenerator core.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |