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| Number | Title | Issue Date |
| 7370630 | Engine with a plurality of operating modes including operation by compressed air The present invention relates (with reference to FIG. 1) to an internal combustion engine in which a combustion chamber (12) can be connected to a reservoir (16) for storing compressed air. Gas flow control valve means (15) controls flow ... | 05/13/2008 |
| 7194852 | Propulsion from combustion of solid propellant pellet-projectiles Propulsion from combustion of solid propellant pellet-projectiles for providing a useful propulsion that has the advantages of both solid and liquid propulsion engines, and also can make use of either solid chemical propellants or fissionable nuclear material as the... | 03/27/2007 |
| 7178616 | Power generation system and method An extended rich mode engine configured and operated extremely rich of stoichiometric to produce a substantially continuous hydrogen rich engine exhaust. Oxygen enrichment devices further optimize production of hydrogen rich engine exhaust. Engines include a free pi... | 02/20/2007 |
| 6973774 | Hybrid propulsion system While commercial jet aircraft are capable of transporting large pay load economically, the same is not true for rockets. To solve this problem, a hybrid propulsion system is proposed for use in Horizontal Take-Off and Land (HOTOL) craft. The purpose is to maximized ... | 12/13/2005 |
| 6968676 | Propulsion from combustion of solid propellant pellet-projectiles Propulsion from combustion of solid propellant pellet-projectiles for providing a useful propulsion that has the advantages of both solid and liquid propulsion engines, and also can make use of either solid chemical propellants or fissionable nuclear material as the... | 11/29/2005 |
| 6952917 | Dual liquid engine and rocket using the same The engine for a rocket is suitable for using for an educational program. The engine uses a liquid phase propellant having a predetermined boiling point and a heating substance having a temperature higher than the boiling point. The engine has an inner wall having a... | 10/11/2005 |
| 6766638 | Hydrogen peroxide based propulsion system A micro air vehicle is propelled by a bipropellant micro engine supplied with hydrogen peroxide and a hydrocarbon fuel. The hydrogen peroxide is decomposed to produce steam and oxygen at high temperature and the hydrocarbon fuel is burnt within a combustion chamber ... | 07/27/2004 |
| 6691504 | Gaseous-fuel breathing rocket engine A gaseous-fuel rocket engine in which an expanding oxidizer driven turbine or electric motor drives the an axial gaseous-fuel turbine compressor. The oxidizer is subsequently injected into a gaseous-fuel duct surrounding the axial gaseous-fuel compressor ... | 02/17/2004 |
| 6619031 | Multi-mode multi-propellant liquid rocket engine A multi-mode multi-propellant rocket engine capable of operating in a plurality of selected modes. ##EQU1## Propellant components may include liquid hydrogen, liquid hydrocarbon, liquid oxygen, liquid fluorine, and liquid air. The liquid oxygen and the ... | 09/16/2003 |
| 6293091 | Axisymmetrical annular plug propulsion system for integrated rocket/ramjet or rocket/scramjet The invention is an airframe which includes a vehicle (12) having a solid propellant rocket engine (14) and a ramjet or scramjet engine (16); a thrust plug (18) extending from an end (20) of the vehicle which directs combustion gases (23 and 64) produced ... | 09/25/2001 |
| 6227486 | Propulsion system for earth to orbit vehicle A single-stage earth-to-orbit launch vehicle employs a combination of rocket engines and turbojet engines to propel a device into orbit. The vehicle is driven through a unique set of operating conditions of the engines to conserve oxidizer and optimize ac... | 05/08/2001 |
| 6148609 | Turbo-rocket thruster A turbo-rocket thruster is disclosed in which the turbine compressor is used to intake and compress a gaseous fuel for combustion with a stored oxidizer injected into the compressed gaseous fuel stream. The compressor stage is driven by the turbine stage,... | 11/21/2000 |
| 5313789 | Solid fuel turbine power plant and method A low noise power plant (100) for providing thrust to a missile (102) having a solid fuel propellant (104) for generating a pressurized gas. A turbine (106) converts the pressurized gas to rotary motion and a drive shaft (108) transfers the rotary motion ... | 05/24/1994 |
| 5119626 | Combined turborocket and ramjet propulsion unit A combined turborocket and ramjet propulsion unit comprises an air intake duct, and an air compressor with two counter-rotating rotor stages disposed downstream of the duct in an annular path formed between an outer casing and a central body which is main... | 06/09/1992 |
| 5101622 | Aerospace propulsion An engine for application to the propulsion of aerospace vehicles (terrestrial or orbital) capable of operating in two propulsive modes. The first mode employs liquid hydrogen to pre-cool the intake air of a turbo-compressor in order to deliver it at high... | 04/07/1992 |
| 5074118 | Air turbo-ramjet engine A jet engine designed to power a supersonic airplane throughout a range of speeds from subsonic to high supersonic includes a housing which bounds an internal passage having in succession a fixed-area inlet section, a diverging passage section, a mixing s... | 12/24/1991 |
| 5063735 | Rocket-powered ducted fan engine The invention is a propulsion system. In detail, the invention comprises a hollow housing having a longitudinal axis and an inlet end and an exhaust nozzle end. A shaft is rotatively mounted along the longitudinal axis within the housing, extending from t... | 11/12/1991 |
| 5014508 | Combination propulsion system for a flying craft A combination engine for a flying craft capable of flying at speeds within a wide range from subsonic speeds to hypersonic speeds, is equipped with a rocket engine section that is independent of an atmospheric air supply, and a turbo air jet engine sectio... | 05/14/1991 |
| 5012640 | Combined air-hydrogen turbo-rocket power plant A combined air-hydrogen turbo-rocket engine is disclosed having a simplified construction in which the hydrogen driven turbine is formed integrally with the rotor wheel of the axial air compressor stages. The rotor stages are located downstream of a stato... | 05/07/1991 |
| 5010730 | Gas-fed hybrid propulsion system Self-contained hybrid propulsion systems have long been recognized as a class of propulsion systems that combine a liquid propellant and a solid propellant into a single system. The propellants are stored separately and the liquid propellant is delivered ... | 04/30/1991 |
| 4817892 | Aerospace plane and engine therefor An engine suitable for use in an aerospace plane is a composite engine comprising, in combination, a turbo jet engine, a ram jet engine, and a rocket engine, all arranged co-axially. An aerospace plane comprises such an engine mounted in a body defining, ... | 04/04/1989 |
| 4342193 | Convertible rocket-air breathing engine A rocket engine is described having a hollow rotor positioned in axial alignment with an outer tubular casing. Fuel and oxidizer are mixed and burned in a first combustion chamber in the rotor and then expelled through nozzles into a second combustion cha... | 08/03/1982 |
| 4096803 | Solid propellant air turbo rocket This invention is a solid fuel air turbo rocket. A solid propellant charge, hich is richer in fuel than conventional propellant compositions, burns in an initial chamber. The gases so produced pass through turbine blades into a second chamber. The turbine,... | 06/27/1978 |
