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"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 5351480 | Jet engine A jet engine having at least one combustion chamber with a propelling nozzle connected behind it, achieves in a constructionally simple manner and with a high propulsion effect a cross-sectional configuration of a hot gas flow duct bounded by the propelli... | 10/04/1994 |
| 5347807 | Combined jet engine with RAM jet and turbojet A jet engine includes a gas turbine, peripheral ramjet channels located oide the gas turbine and including burners wherein a gas circulation stream in the engine is subdivided over part of its length into a central turbojet stream which flows through the... | 09/20/1994 |
| 5343695 | Combined jet engine provided with means for switching between two operating states A jet engine has a central turbojet stream and a peripheral ram jet stream which can be in turn obstructed or freed by flaps. The flaps can be opened outwardly and are located on an intake cone and at an inlet of the peripheral stream. The operation of th... | 09/06/1994 |
| 5311735 | Ramjet bypass duct and preburner configuration A combined turbofan and ramjet aircraft engine includes a forward bypass duct which allows the engine to operate more efficiently during the turbofan mode of operation. By mounting a ramjet preburner in the forward duct and isolating this duct from the tu... | 05/17/1994 |
| 5284014 | Turbojet-ramjet hypersonic aircraft engine A combination turbojet-ramjet engine for powering a hypersonic aircraft is disclosed wherein the intake duct for the ramjet portion of the engine is centrally located within the turbojet portion of the engine in order to improve the access from outside th... | 02/08/1994 |
| 5159809 | Highly adaptable combined propulsion engine for an aircraft or a space-going airplane The combined propulsion engine comprises an air-breathing jet engine and a non-air-breathing rocket engine, the jet engine comprising an air inlet device and an external nozzle which, in association with a central body, defines an air-breathing combustion... | 11/03/1992 |
| 5154051 | Air liquefier and separator of air constituents for a liquid air engine An air liquefier and separator of air constituents for a liquid air engine. Its unique structure captures the ambient air and guides it through guide vanes into a bank of spiral tubes or channels where the air is completely contained while being liquified... | 10/13/1992 |
| 5150571 | Device for exposing or shutting off a turbo-engine on the intake air side of the engine A stationary centerbody includes vaulted areas displaced substantially by 180° axially as well as along the circumference with respect to one another on its largest relative diameter. The vaulted areas, while enclosing a shut-off surface which is diagona... | 09/29/1992 |
| 5148673 | Integrated turboramjet engine An integrated turboramjet engine has an axially slidable inlet cone, a rigid guide ring arranged concentrically outside the inlet cone, and a lock ring which can be slid axially against the inlet cone, whereby the air volume flowing into the air inlet can... | 09/22/1992 |
| 5105615 | Turbojet engine with at least one axially movable arranged sliding valve With surface sections vaulted with respect to the valve centerline the valve mates with a stationary companion surface on an annular casing lip to optionally shut off or expose the engine by having vaulted surface sections which are arranged at an axial d... | 04/21/1992 |
| 5094070 | Propelling nozzle for a hypersonic jet plane A propelling nozzle for a hypersonic jet plane having movable upper and lower primary and secondary flaps assigned to the gas turbojet engine as well as to the ramjet engine, both engines being arranged axially above one another, their outlet ducts being ... | 03/10/1992 |
| 5058378 | Integrated turboramjet engine A change-over arrangement for an integrated turboramjet engine has a guide ring which can be displaced in the axial direction and an annular cone which can be displaced against the guide ring. In the turbo-operation, the annular cone is in its front posit... | 10/22/1991 |
| 5058377 | Turboramjet engine A turbine ramjet engine is provided which has a ram pressure air duct shrouding the basic turbo-engine in an annular manner. When the ramjet operation is disconnected, this ram pressure air duct, while at the same time intake air is released into the basi... | 10/22/1991 |
| 5052176 | Combination turbojet-ramjet-rocket propulsion system A propulsion system for a reusable spacecraft is disclosed having turbojet, amjet and rocket modes of operation. Hydrogen or exhaust gases from a gas generator drives a gas turbine which powers an air compressor in the turbojet mode. An injection device in... | 10/01/1991 |
| 5044156 | Device designed to modify the trajectory of a projectile by pyrotechnical thrusters The invention concerns a device designed to modify the trajectory of a projectile by pyrotechnical thrusters, formed by several solid propellant thrusters arranged transversally on a cylindrical support. The combustion chambers, instead of having a cylind... | 09/03/1991 |
| 4964340 | Overlapping stage burn for multistage launch vehicles The invention relates to a multistage launch vehicle and method of multistage launch vehicle operation in which at least one subsequent motor stage is ignited following lift-off in partially overlapping relationship with its immediately preceding motor st... | 10/23/1990 |
| 4919364 | Propulsion system for hypersonic flight A propulsion system for an aircraft capable of hypersonic flight combines a turbo-jet with a ramjet which are so arranged that the ramjet or jets are located directly adjacent to the aircraft body while the turbo-jet or jets are located away from the airc... | 04/24/1990 |
| 4909031 | Combined multi-speed jet engine for the drive of airplanes and space vehicles Composite changeover-type reaction power plant for propelling aircraft and spacecraft operating in subsonsic, supersonic and hypersonic regions, embracing a turbofan bypass engine with front fan, and a ramjet engine with a cycle corresponding to that of t... | 03/20/1990 |
| 4840024 | Multiple propellant solid rocket motor An integrated stage rocket motor arrangement provides boost and repeated throttling post boost operations, on demand, and includes an attitude control system. The rocket motor includes a plurality of casings for enclosing an initial boost motor, a post bo... | 06/20/1989 |
| 4817377 | Head end control and steering system: using a forward end maneuvering gas generator An auxiliary gas generator is used to provide gas for steering and pointing control of a multi-stage rocket motor system to a head or forward end located final interception maneuvering stage. During lower stage operation, this gas is routed through the "D... | 04/04/1989 |
| 4736583 | Rocket firing system for sequential firing of rocket motor groups An aerial target vehicle has an aerodynamically stabilized body carrying plural rocket motors. An ignition system for the motors serves to fire the motors in selected groups at selected time intervals. The ignition system uses a capacitor as its sole powe... | 04/12/1988 |
| 4478040 | Dual area nozzle actuating mechanical actuation system In a dual area nozzle automatic mechanical actuation system for a boost-sustain solid propellant rocket motor, a pressure differential is created on the opposite sides of a ball-catch retaining ring when a fast-burning portion of the solid-propellant grai... | 10/23/1984 |
| 4428188 | Bistable fuel valve A compact bistable, magnetically operated fuel valve embodies an upper portion comprising a pair of similarly poled and spaced apart permanent magnets defining vertical side walls of an enclosure space which is completed by a pair of pole plates sandwichi... | 01/31/1984 |
| 4338783 | Two-stage hypersonic ramjet A two-stage ramjet engine including an aft end, ejectable, boost stage-combustor/nozzle assembly for initially accelerating from low-to-mid-supersonic launching speeds to high supersonic speeds, and mounted in a tandem arrangement immediately aft of a sep... | 07/13/1982 |
| 4250705 | Apparatus for the connection between two stages of a self-propelled engine A device for joining the two stages 2 and 3 of a self-propelled engine comprises means for achieving the separation of the two stages 2 and 3 after the combustion of the pyrotechnic charge 12 of the rear stage 2 is completed, means for carrying out the ig... | 02/17/1981 |
| 4222233 | Auxiliary lift propulsion system with oversized front fan A propulsion system for use primarily in V/STOL aircraft is provided with a variable cycle, double bypass gas turbofan engine and a remote augmenter to produce auxiliary lift. The fan is oversized in air-pumping capability with respect to the cruise fligh... | 09/16/1980 |
| 4220001 | Dual expander rocket engine A composite cycle rocket engine having an inner engine disposed to discharge directly into the nozzle of an outer engine, is described herein.... | 09/02/1980 |
| 4185457 | Turbofan-ramjet engine A turbofan-ramjet engine is provided with optional duct burning in the turbofan mode. A core engine is provided with a first annular passage therearound for directing airflow around the inlet of the core engine. A second annular passage having a fan direc... | 01/29/1980 |
| 4149374 | Jet propulsion engine assembly for aircraft A jet propulsion engine assembly for aircraft embodying a longitudinal tubular pod or nacelle housing having an open air intake nose. This assembly includes an axial air flow impeller supported longitudinally in the interior of and by the housing, and it ... | 04/17/1979 |
| 4132165 | Fuel supply system for a missile or the like A missile is initially propelled through space by the burning of solid fuel in a combustor. The heat produced by the combustion of such fuel is used to vaporize a liquid, the pressurized vapor being used to pump liquid fuel to the combustor after the soli... | 01/02/1979 |
| 4007685 | Gas generator A multi-stage gas generator in which selective sequential initiation of cartmental propellant charges is available as a pulsing gas generator. The generator has individual gas generating compartments mounted in tandem and separated from each other by a p... | 02/15/1977 |
