US3333414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynamic-flow reverser and smoother
Assignee: Pratt and Whitney Canada Corp
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Filing: 1965-10-13
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Granted: 1967-08-01
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Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 John A Saintsbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:17
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/54; F23R3/02; F23R3/04; F23R3/10; F23R3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/8593; Y10T137/87571; Y10T137/87652
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
A COMBUSTION CHAMBER COMPRISING RADIALLY SPACEDAPART CYLINDRICAL CONCENTRIC WALLS AND AN END WALL EXTENDING THEREBETWEEN, MEANS FOR DIRECTING A FLOW OF AIR ALONG THE OUTER WALL IN A LONGITUDINAL DIRECTION, MEANS PROVIDED IN SAID OUTER WALL FOR CAUSING PART OF THE FLOW OF AIR TO FROM A VORTEX, AND MEANS DIVERTING AIR FROM SAID VORTEX TO ENTER SAID COMBUSTION CHAMBER WHEREBY THE DIRECTION OF SAID DIVERTED AIR IS REVERSED RELATIVE TO SAID FLOW OF AIR.
Claim 2
Dependent Claim
75 words
A COMBUSTION CHAMBER COMPRISING RADIALLY SPACEDAPART CYLINDRICAL CONCENTRIC WALLS AND AN END WALL EXTENDING THEREBETWEEN, MEANS FOR DIRECTING A FLOW OF AIR ALONG THE OUTER WALL IN A LONGITUDINAL DIRECTION, MEANS PROVIDED IN SAID OUTER WALL FOR CAUSING PART OF THE FLOW OF AIR TO FROM A VORTEX, AND MEANS DIVERTING AIR FROM SAID VORTEX TO ENTER SAID COMBUSTION CHAMBER WHEREBY THE DIRECTION OF SAID DIVERTED AIR IS REVERSED RELATIVE TO SAID FLOW OF AIR.
Claim 3
Dependent Claim
104 words
A GAS TURBINE ENGINE, AN AXIALLY EXTENDING CYLINDRICAL WALL PORTION, AN ANNULAR COMBUSTION CHAMBER MOUNTED WITHIN SAID CYLINDRICAL WALL BUT SPACED THEREFROM AND FORMING AN ANNULAR PASSAGE THEREBWETWEEN, MEANS FOR FORCING A FLUID STREAM THROUGH SAID PASSAGE, AN ANNULAR CONCAVE RECESS FORMED ON SAID COMBUSTION CHAMBER AND EXTENDING IN A DIRECTION NORMAL TO SAID FLUID STREAM, SAID CONCAVE RECESS CAUSING A FLUID VORTEX TO BE FORMED WITHIN SAID RECESS, SPACED-APART INLET PORTS PROVIDED ALONG THE APEX OF SAID RECESS, SAID PORTS DIVERTING A PORTION OF SAID FLUID IN SAID SO-FORMED VORTEX TO WITHIN SAID COMBUSTION CHAMBER IN A DIRECTION REVERSED FROM SAID FLUID STREAM.
Claim 4
Dependent Claim
104 words
A GAS TURBINE ENGINE, AN AXIALLY EXTENDING CYLINDRICAL WALL PORTION, AN ANNULAR COMBUSTION CHAMBER MOUNTED WITHIN SAID CYLINDRICAL WALL BUT SPACED THEREFROM AND FORMING AN ANNULAR PASSAGE THEREBWETWEEN, MEANS FOR FORCING A FLUID STREAM THROUGH SAID PASSAGE, AN ANNULAR CONCAVE RECESS FORMED ON SAID COMBUSTION CHAMBER AND EXTENDING IN A DIRECTION NORMAL TO SAID FLUID STREAM, SAID CONCAVE RECESS CAUSING A FLUID VORTEX TO BE FORMED WITHIN SAID RECESS, SPACED-APART INLET PORTS PROVIDED ALONG THE APEX OF SAID RECESS, SAID PORTS DIVERTING A PORTION OF SAID FLUID IN SAID SO-FORMED VORTEX TO WITHIN SAID COMBUSTION CHAMBER IN A DIRECTION REVERSED FROM SAID FLUID STREAM.
Claim 5
Independent Claim
90 words
A METHOD FOR SMOOTHING THE FLOW IN A REVERSE-FLOW COMBUSTION CHAMBER HAVING THE SHAPE OF AN ELONGATED ANNULUS COMPRISING THE STEPS OF DIREFCTING AIR ALONG THE OUTSIDE OF THE COMBUSTION CHAMBER AT A DIRECTION OPPOSITE OF THE FLOW IN THE COMBUSTION CHAMBER TRAPPING PART OF SAID AIR AND CAUSING IT TO FORM A VORTEX, DIVERTING SOME OF SAID AIR FROM THE VORTEX TANGENTIALLY INTO THE COMBUSTION CHAMBER THEREBY IMPINGING SAID AIR ON SAID FLOW IN THE COMBUSTION CHAMBER AT AN ANGLE THERETO BUT IN THE SAME DIRECTION AS THE FLOW.
Claim 6
Independent Claim
90 words
A METHOD FOR SMOOTHING THE FLOW IN A REVERSE-FLOW COMBUSTION CHAMBER HAVING THE SHAPE OF AN ELONGATED ANNULUS COMPRISING THE STEPS OF DIREFCTING AIR ALONG THE OUTSIDE OF THE COMBUSTION CHAMBER AT A DIRECTION OPPOSITE OF THE FLOW IN THE COMBUSTION CHAMBER TRAPPING PART OF SAID AIR AND CAUSING IT TO FORM A VORTEX, DIVERTING SOME OF SAID AIR FROM THE VORTEX TANGENTIALLY INTO THE COMBUSTION CHAMBER THEREBY IMPINGING SAID AIR ON SAID FLOW IN THE COMBUSTION CHAMBER AT AN ANGLE THERETO BUT IN THE SAME DIRECTION AS THE FLOW.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |