US3837760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine engine
Assignee: CHROMALLOY COMPRESSOR TECHNOLOGIES Corp C/O CHROMALLOY GAS TURBINE CORPORATION
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Filing: 1972-07-13
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Granted: 1974-09-24
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Expires: 1992-07-13
Abstract
Abstract A turbine type engine employs an axial type compressor in which the rotor has flow passages between the blades of decreasing cross-sectional area from inlet to outlet while the blades are configured to turn the flow of fluid substantially back toward its original direction, so that the supersonic flow is discharged at a relatively flat angle to the plane of rotation of 30* or less. The direction of discharge flow of the compressor has its greatest component of velocity substantially in the peripheral direction. A collector is used free of stator vanes leading to a tubular type diffuser. The diffuser is formed with tubular segments positioned in successive downstream relation defining peripheral flow slots. The discharge of the combustor is directed to a radial inflow turbine.
Inventors
- 👤 E Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
CPC Classifications
F; F04; F04D; F04D21/00; F23; F23R; F23R3/00; F23R3/42; F23R3/425
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
188 words
An axial flow compressor comprising a rotor with smoothly curved V-shaped blades and blade exit portions directed so that the tangent to the mean camber line adjacent the exit is directed past the axis of rotation in the direction of rotation by at least 45* to provide a discharge at an angle less than 30* to the plane of rotation of said rotor, said rotor having hub diameters increasing in diameter from adjacent the leading edges to a locality substantially downstream from the maximum curvature of the blades to provide contracting cross-sectional areas of the flow passages between peripherally adjacent blades to accelerate the flow therethrough at the same time it is being turned to discharge the flow with a substantial peripheral component, and a collector scroll free of vanes adjacent the exit side of said rotor to receive said peripheral flow, said collector having an axial nozzle portion leading directly into a scroll portion providing an open and substantially unobstructed annular area which increases in axial width and cross-sectional area along the flow direction, said collector defining a peripherally curved inside surface along the direction of flow.
Claim 2
Dependent Claim
188 words
An axial flow compressor comprising a rotor with smoothly curved V-shaped blades and blade exit portions directed so that the tangent to the mean camber line adjacent the exit is directed past the axis of rotation in the direction of rotation by at least 45* to provide a discharge at an angle less than 30* to the plane of rotation of said rotor, said rotor having hub diameters increasing in diameter from adjacent the leading edges to a locality substantially downstream from the maximum curvature of the blades to provide contracting cross-sectional areas of the flow passages between peripherally adjacent blades to accelerate the flow therethrough at the same time it is being turned to discharge the flow with a substantial peripheral component, and a collector scroll free of vanes adjacent the exit side of said rotor to receive said peripheral flow, said collector having an axial nozzle portion leading directly into a scroll portion providing an open and substantially unobstructed annular area which increases in axial width and cross-sectional area along the flow direction, said collector defining a peripherally curved inside surface along the direction of flow.
Claim 3
Dependent Claim
165 words
In combination, a case, an axial flow rotor mounted in said case for rotation about an axis, said rotor having smoothly curved blades and blade exit portions directed so that the tanGent to the mean camber line adjacent the exit is directed past the axis of rotation in the direction of rotation by at least 45*, the improvement comprising the fact that the rotor has hub diameters increasing in diameter from adjacent the leading edges to a region substantially downstream from the maximum curvature of the blades to provide flow passages between adjacent blades having contracting cross-sectional areas to accelerate the flow therethrough, a substantially vaneless collector adjacent the exit side of said rotor to receive said flow and direct said flow transversely to said axis into a duct extending transversely to said axis, means to rotate said axial flow rotor to provide an exit flow therefrom, at supersonic velocity relative to said case, and a combustion chamber in said duct to heat said flow.
Claim 4
Dependent Claim
165 words
In combination, a case, an axial flow rotor mounted in said case for rotation about an axis, said rotor having smoothly curved blades and blade exit portions directed so that the tanGent to the mean camber line adjacent the exit is directed past the axis of rotation in the direction of rotation by at least 45*, the improvement comprising the fact that the rotor has hub diameters increasing in diameter from adjacent the leading edges to a region substantially downstream from the maximum curvature of the blades to provide flow passages between adjacent blades having contracting cross-sectional areas to accelerate the flow therethrough, a substantially vaneless collector adjacent the exit side of said rotor to receive said flow and direct said flow transversely to said axis into a duct extending transversely to said axis, means to rotate said axial flow rotor to provide an exit flow therefrom, at supersonic velocity relative to said case, and a combustion chamber in said duct to heat said flow.
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |