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US3149461A Expired / Lapsed US ⏱️ 0.0 years remaining

Composite reaction engine for aircraft with wide ranges of speed

Assignee: Safran Aircraft Engines SAS
•
Filing: 1961-11-16
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Granted: 1964-09-22
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Expires: 1981-11-16
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Abstract

No abstract record available.

Inventors

  • 👤 Eichholtz Konrad

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:19
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 188 words
A COMPOSITE JET ENGINE DESIGNED FOR EFFICIENT OPERATION IN THE SUBSONIC AS WELL AS HIGHLY SUPERSONIC RANGE OF AIRCRAFT SPEED, COMPRISING A FIRST JET PROPULSION CHANNEL ENDING REARWARDLY WITH AN ADJUSTABLE CONVERGENT-DIVERGENT NOZZLE, A SECOND JET PROPULSION CHANNEL ENDING REARWARDLY WITH A FURTHER AND DISTINCT ADJUSTABLE CONVERGENT-DIVERGENT NOZZLE, AT LEAST ONE ADJUSTABLE CONVERGENT-DIVERGENT RAMMING INTAKE AT THE FORE END OF SAID CHANNELS, A COMBUSTION CHAMBER WITHIN SAID SECOND CHANNEL INTERMEDIATE THE RAMMING INTAKE AND NOZZLE THEREOF WHEREBY SAID SECOND CHANNEL IS OPERABLE SUBSTANTIALLY ALONG A RAM-JET CYCLE IN SAID SUPERSONIC RANGE, A LOW-PRESSURE COMPRESSOR IN SAID SECOND CHANNEL POSITIONED UPSTREAM OF SAID COMBUSTION CHAMBER, A TURBINE DRIVINGLY CONNECTED TO SAID COMPRESSOR, A FURTHER AND SEPARATE COMBUSTION CHAMBER CONNECTED WITH THE INLET OF SAID TURBINE, A COMPRESSED-AIR GENERATOR IN SAID FIRST CHANNEL, AND AN INTERCONNECTING CONDUIT EXTENDING BETWEEN SAID CHANNELS FOR SUPPLYING SAID FURTHER COMBUSTION CHAMBER WITH COMPRESSED-AIR GENERATOR IN SAID FIRST CHANNEL, AND AN INTERCONNECTING CONDUIT EXTENDING BETWEEN SAID CHANNELS FOR SUPPLYING SAID FURTHER COMBUSTION CHAMBER WITH COMPRESSED AIR DELIVERED BY SAID GENERATOR WHEREBY SAID SECOND CHANNEL IS OPERABLE SUBSTANTIALLY ALONG A TURBOFAN CYCLE IN SAID SUBSONIC RANGE.
Claim 2
Dependent Claim 188 words
A COMPOSITE JET ENGINE DESIGNED FOR EFFICIENT OPERATION IN THE SUBSONIC AS WELL AS HIGHLY SUPERSONIC RANGE OF AIRCRAFT SPEED, COMPRISING A FIRST JET PROPULSION CHANNEL ENDING REARWARDLY WITH AN ADJUSTABLE CONVERGENT-DIVERGENT NOZZLE, A SECOND JET PROPULSION CHANNEL ENDING REARWARDLY WITH A FURTHER AND DISTINCT ADJUSTABLE CONVERGENT-DIVERGENT NOZZLE, AT LEAST ONE ADJUSTABLE CONVERGENT-DIVERGENT RAMMING INTAKE AT THE FORE END OF SAID CHANNELS, A COMBUSTION CHAMBER WITHIN SAID SECOND CHANNEL INTERMEDIATE THE RAMMING INTAKE AND NOZZLE THEREOF WHEREBY SAID SECOND CHANNEL IS OPERABLE SUBSTANTIALLY ALONG A RAM-JET CYCLE IN SAID SUPERSONIC RANGE, A LOW-PRESSURE COMPRESSOR IN SAID SECOND CHANNEL POSITIONED UPSTREAM OF SAID COMBUSTION CHAMBER, A TURBINE DRIVINGLY CONNECTED TO SAID COMPRESSOR, A FURTHER AND SEPARATE COMBUSTION CHAMBER CONNECTED WITH THE INLET OF SAID TURBINE, A COMPRESSED-AIR GENERATOR IN SAID FIRST CHANNEL, AND AN INTERCONNECTING CONDUIT EXTENDING BETWEEN SAID CHANNELS FOR SUPPLYING SAID FURTHER COMBUSTION CHAMBER WITH COMPRESSED-AIR GENERATOR IN SAID FIRST CHANNEL, AND AN INTERCONNECTING CONDUIT EXTENDING BETWEEN SAID CHANNELS FOR SUPPLYING SAID FURTHER COMBUSTION CHAMBER WITH COMPRESSED AIR DELIVERED BY SAID GENERATOR WHEREBY SAID SECOND CHANNEL IS OPERABLE SUBSTANTIALLY ALONG A TURBOFAN CYCLE IN SAID SUBSONIC RANGE.

References Cited (Backward Citations)

US2396911A Cited
US2409177A Cited
CH243957A Cited
US2570629A Cited
US2501078A Cited
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US2677932A Cited
GB704669A Cited
US2955414A Cited
US2988878A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-09-22 1968-03-23 1968-09-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-09-22 1972-03-23 1972-09-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-09-22 1976-03-23 1976-09-22 $7700.00 Window Closed / Lapsed

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