초록 ▼

A combined rocket/ramjet for propelling a missile including a missile payload module and an integral rocket/ramjet engine system strapped on the missile payload module, and incorporating a liquid fuel rocket engine and a ramjet engine having a combustion chamber common with the rocket engine, an exh

A combined rocket/ramjet for propelling a missile including a missile payload module and an integral rocket/ramjet engine system strapped on the missile payload module, and incorporating a liquid fuel rocket engine and a ramjet engine having a combustion chamber common with the rocket engine, an exhaust nozzle, and multiple aft-mounted air inlets movable between a retracted position during rocket boost flight and an extended, pop-out position to receive and direct ram air in a reverse flow direction into the combustion chamber during ramjet flight.

대표청구항 ▼

A jet propulsion apparatus for powering a missile or aircraft at supersonic or hypersonic flight speeds comprising: a main enclosure having an exhaust nozzle at the downstream end thereof; a rocket propulsion unit incorporating a rocket fuel supply container and positioned at the upstream end of sai

A jet propulsion apparatus for powering a missile or aircraft at supersonic or hypersonic flight speeds comprising: a main enclosure having an exhaust nozzle at the downstream end thereof; a rocket propulsion unit incorporating a rocket fuel supply container and positioned at the upstream end of said main enclosure; at least one combustion chamber in communication with, and located in said main enclosure downstream of said rocket fuel supply container; a ramjet propulsion unit incorporating said combustion chamber and including ram air-passage means disposed in recessed relation within the walls of said main enclosure upstream of said exhaust nozzle and at the downstream end of said combustion chamber; adjustably positioned ram air-controlling means built into said ram air-passage means and incorporating first, upstream-facing ram air-inlet means movable between a retracted position in a recessed, compact relation in said main enclosure and an extended position admitting ram air into the said ram air-passage means for initiating and maintaining a predetermined cruising operation for said ramjet propulsion unit for providing ramjet flight; and a reverse flow-directing means formed in direct open communication between said ram air-passage means and said combustion chamber; said reverse flow-directing means having second ram air inlet means forming a natural extension of and being slidably engaged and in open communication with an interior portion of said first ram air inlet means and containing a main air egress opening in an upstream location and a plurality of peripheral auxiliary air egress openings all communicating with said combustion chamber; said fuel supply container incorporating a liquid fuel, and said main enclosure further having an intermediate, completely wall-enclosed compartment between said liquid fuel container and said combustion chamber automatically blocking the reverse ram air egressing from said main egress opening and simultaneously returning the said air flow iN a downstream direction, said compartment housing a fuel pump; valve control means; and first and second fuel feed lines respectively interconnected with the liquid fuel container for selectively feeding a supply of liquid fuel in a downstream direction into a fuel injection manifold having a first manifold line section in fluid communication with said valve control means and a second manifold line section integrally formed with said first line section and extending into said combustion chamber and the interior of said reverse flow-directing means in open communicaton with the said auxiliary egress openings thereof; said ram air-controlling means comprising a plurality of retractable air inlet scoop elements each adjustably positioned in the ram air-inlet passages corresponding thereto for movement between retracted, recessed and inoperable, and extended, pop-out and operable positions thereby alternately closing off and admitting ram air into said combustion chamber through said reverse flow-directing means.