Propulsion unit for airplanes

Claim 1

A COMBINATION PROPULSION UNIT FOR AIRPLANES COMPRISING RAM JET PROPULSION MEANS AND GAS TURBINE JET PROPULSION MEANS WHICH TOGETHER OR ALTERNATELY PROVIDE THE PROPULSION MEANS FOR THE PLANE, NAMELY SAID GAS TURBINE JET PROPULSION MEANS DURING STARTING AND IN THE RELATIVELY LOW VELOCITY RANGE AND SAID RAM JET PROPULSION MEANS IN THE RELATIVELY HIGH VELOCITY RANGE, SAID RAM JET PROPULSION MEANS INCLUDING A RAM JET PIPE HAVING A SUPERSONIC AIR INLET, SUPERSONIC DIFFUSOR MEANS ARRANGED ADJACENT SAID AIR INLET, A COMBUSTION CHAMBER, FUEL INJECTION MEANS AND THRUST NOZZLE MEANS, SAID GAS TURBINE JET PROPULSION MEANS BEING ARRANGED WITHIN SAID RAM JET PROPULSION MEANS COAXIALLY THEREOF, SAID GAS TURBINE JET PROPULSION MEANS INCLUDING A HOUSING CONTAINING A TURBO-COMPRESSOR HAVING A DRIVE SHAFT, A COMBUSTION CHAMBER, FUEL INJECTION MEANS, A GAS TURBINE AND A THRUST NOZZLE MEANS, SAID HOUSING BEING PROVIDED WITH AIR INLET MEANS FOR THE CONPRESSOR, CLOSURE MEANS FOR THE AIR INLET MEANS OF SAID GAS TURBINE PROPULSION MEANS ADAPTED TO BE CLOSED WHEN THE GAS TURBINE PROPULSION MEANS IS RENDERED INOPERATIVE, SAID SUPERSONIC DIFFUSOR MEANS BEING CONSTRUCTED AS INCLINED IMPACT DIFFUSOR HAVING A CENTRAL BODY MEMBER, SAID CENTRAL BODY MEMBER BEING DISPOSED IN SAID SUPERSONIC AIR INLET, SAID CLOSURE MEANS BEING ARRANGED IN FRONT OF SAID AIR INLET MEANS FOR SAID GAS TURBINE PROPULSION MEANS AND INCLUDING AN AERODYNAMICALLY CORRECT CLOSURE BODY MEMBER HAVING A FORWARD CONICAL PORTION AND A REAR CONICAL PORTION, AND MEANS FOR DISPLACING SAID CLOSURE BODY MEMBER IN THE LONGITUDINAL DIRECTION OF SAID GAS TURBINE PROPULSION MEANS TO A REARWARD CLOSURE POSITION AND A FORWARD POSITION TO THEREBY SELECTIVELY OPEN AND CLOSE SAID INLET MEANS FOR THE GAS TURBINE PROPULSION MEANS WITH THE REAR CONICAL PORTION OF SAID CLOSURE BODY MEMBER CLOSING SAID AIR INLET MEANS FOR THE GAS TURBINE PROPULSION MEANS IN SAID REARWARD CLOSURE POSITION OF SAID CLOSURE MEANS, AND SAID FORWARD CONICAL PORTION BEING RECEIVED IN SAID CENTRAL BODY MEMBER IN SAID FORWARD POSITION OF SAID CLOSURE BODY MEMBER.