External burning ramjet engine

Claim 1

IN AN EXTERNAL BURNING RAMJET ENGINE WHEREIN THE IMPROVEMENT COMPRISES: A MAIN BODY PORTION; SAID BODY PORTION INCLUDING A FRONT DOWNDWARLY INCLINED RAMP; A REAR UPWARDLY INCLINED RAMP; SAID FORWARD INCLINED RAMP AND SAID REAR INCLINED RAMP BEING INTERCONNECTED BY AN UPPER AND LOWER CENTRAL PORTION; SAID UPPER CENTRAL PORTION BEING INCLINED DOWNWARD AT ITS FORWARD END; SAID LOWER CENTRAL PORTION BEING SUBSTANTIALLY HORIZONTAL; A COWL SPACED FROM SAID LOWER CENTRAL PORTION TO FORM AN AIR PASSAGEWAY THEREBETWEEN; SAID COWL FIXEDLY SECURED TO SAID BODY PORTION BY A PAIR OF SIDE PLATES; SAID COWL HAVING A HORIZONTAL PORTION PARALLEL TO SAID LOWER CENTRAL PORTION OF SAID BODY; SAID COWL HAVING A DOWNWARDLY EXTENDING RAMP AT ITS REAR END; FUEL INJECTION MEANS LOCATED AT THE REARMOST PORTION OF SAID HORIZONTAL PORTION; SAID COWL SPACED FROM SAID MAIN BODY IN SUCH A MANNER THAT AIR ENTERING SAID PASSAGEWAY IS COMPRESSED BY A FIRST SHOCK WAVE THAT IS FORMED WHEN AIR CONTACTS THE LEADING EDGE OF SAID MAIN BODY; SAID ENTERING AIR BEING REFLECTED AND FORMS A SECOND SHOCK WAVE WHEN SAID AIR IMPINGES ON THE LEADING EDGE OF SAID COWL; SAID ENTERING AIR IS AGAIN REFLECTED HORIZONTALLY THROUGH SAID PASSAGEWAY; AS THE AIR REACHES SAID FUEL INJECTION TAKES PLACE AND THE BURNING GASES EXPAND OVER SAID REARWARD RAMPS THUS PRODUCING LIFT AND THRUST.