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7506500 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...
7477966 Propellant management system and method for multiple booster rockets  
Propellant management systems and methods are provided for controlling the delivery of liquid propellants in a space launch vehicle utilizing multiple rockets. The propellant management systems and...
7254936 Simple solid propellant rocket engine and super-staged rocket  
A solid propellant rocket engine includes: a propellant formed into a predetermined shape having a combustion cavity and capable of deflagrating into hot, high-pressure gas upon ignition; and a...
6631610 Consumable port cover for ducted integral rocket-ramjet engine  
In an integral rocket-ramjet engine the air intake ports are covered with a port cover made of a laminate of Pd and Al. This port cover is rapidly consumed in the brief period between the end of...
6631314 Propellant utilization system  
A propellant utilization system for a space vehicle having at least a first thrust source and a second thrust source. The propellant utilization system utilizes a common set of algorithms to...
6378292 MEMS microthruster array  
A microelectrical mechanical system (MEMS) microthruster array is disclosed. The MEMS microthruster array of the present invention can be used for maintaining inter satellite distance in small...
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...
6148610 Solid propellant charge for a propulsion unit and propulsion unit equipped with such a charge  
A solid propellant charge for a propulsion unit (1). The latter includes a casing (2) containing the solid propellant charge (3), in the form of an elongated body having a longitudinal axis (X--X),...
6036144 Mass producible launch system  
The disclosed launch systems are formed from mass producible elements that integrate propulsion, pneumatics and structural systems. In one embodiment, a launch system (10) includes multiple stages...
5613358 Reduced cost membrane seal assembly for pulsed rocket motor  
A membrane seal assembly separating forward and aft combustion chambers of a rocket motor. The assembly covers the aft surface of a bulkhead having apertures therein to preclude flow communication...
5582001 Hybrid rocket combustion enhancement  
The combustion of a hybrid engine is improved by continuously injecting into a precombustion chamber a hypergolic fluid such as triethyl aluminum which exothermically reacts with and vaporizes the...
5419118 Multi-stage rocket motors  
A motor for impelling a missile or projectile has a housing and a plurality of spaced walls defining progressive compartments in the housing. A nozzle in one of the compartments produces a thrust...
5160070 Reverse bulged forward acting scored rupture disc bulkhead structure for multi-stage rocket motor  
Rupture disc bulkhead structure for use in a multi-stage rocket motor for missiles or the like wherein the disc is supported by a multiple apertured backup member. The disc has a series of bulges...
5125229 Nozzleless propulsion unit of low aspect ratio  
A propulsion unit for the acceleration of a self-propelled vehicle, such as a missile or a rocket, is loaded with a propellant block secured laterally to the body of the propulsion unit by means of...
5070691 Solid propellant canister loaded multiple pulsed or staged rocket  
A multi-pulse or multi-stage canister loaded solid propellant rocket motor. The canisters are prepared separately and loaded with solid propellant whereby the scrape rate may be reduced after which...
4999997 Radial pulse motor igniter-sustain grain  
A radial pulse rocket motor having a nozzle at the aft end includes longitudinally spaced hollow boost and sustain propellant grains in the combustion chamber thereof with an elongated tubular...
4972673 Solid rocket motor with dual interrupted thrust  
The invention disclosed is a solid propellant rocket motor, capable of providing two separate propulsive impulses to a missile. The rocket motor is connected at one end to the missile body, the...
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...
4936092 Propellant grain design  
A solid propellant rocket motor propellant grain configuration having a center bore of a varying diameter, ballistic slots, a stress/ballistic groove, and a burn inhibitor band for withstanding...
4891938 Solid fuel burn enhancer  
A solid rocket motor grain construction is disclosed for use in a ramjet to improve performance. The solid fuel burn enhancer adds oxidizer for burn rate control. Two constructions are disclosed....
4866930 Membrane seal for application to pulsed rocket motors  
A thin membrane of high strength but ductile material is placed over a perforated structural support, thus allowing high pressure on the membrane side of the support to separate one chamber from...
4856276 Variable mass flow rate solid propellant grain  
A solid propellant grain for a gas generator such as a missile canister erection actuator. The grain provides a sustain phase followed by a boost phase which may then be followed by another sustain...
4829765 Pulsed rocket motor  
A segmented rocket motor case includes wedge members for forcing the case segments into position to remove free play at the joint thereof which may otherwise interfere with or upset the missile's...
4819426 Rocket propelled vehicle forward end control method and apparatus  
A rocket propelled vehicle includes a lower stage solid propellant rocket motor and at least one upper stage solid propellant rocket motor. Each of the rocket motors includes a case, a nozzle and a...
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....
4766726 Segmented case rocket motor  
A segmented rocket motor case includes wedge members for forcing the case segments into position to remove free play at the joint thereof which may otherwise interfere with or upset the missile's...
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...
4277940 Integral rocket-ramjet closed loop fuel control system  
In an integral rocket-ramjet having a combustor which initially serves as a rocket combustion chamber for booster propellant, and after the booster propellant is expended serves as a ramjet...
4263781 Integral rocket-ramjet open loop fuel control system  
In an integral rocket-ramjet having a combustor which initially serves as a rocket combustion chamber for booster propellant, and after the booster propellant is expended, serves as a ramjet...
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...
4203284 Combustion chamber for a ramjet and booster rocket  
The invention relates to a combustion chamber of a ramjet and booster rocket, which comprises an inner envelope provided with upstream lateral ports for the inlet of air and a downstream nozzle for...
4202172 Boost survivable ramjet elements  
Protectors for certain elements such as fuel injectors and flameholders used in conjunction with the ramjet phase of an integral rocket ramjet. In the preferred embodiment slip-on caps of a high...
4165608 Sensor for rocket engines  
A sensor for rocket engines having at least one combustion chamber including a pressure-sensitive sensing device responsive to pressure in the combustion chamber for providing an output signal to a...
4148187 Radial end burner rocket motor  
A rocket motor grain consisting of a one-piece solid base propellant divided into an aft end section having a central cavity extending throughout its length, a forward end section having a central...
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...
4104878 Pressure resistant member  
A plug for closing an opening in a partition between rocket motor chambers is made in segments and will resist a relatively high pressure differential between the chambers in one direction but will...
4085584 Barrier system for dual-pulse rocket motor  
A barrier system for use in preventing the pre-ignition of second pulse rocket grains in a dual pulse rocket motor. The system includes two double layers of rubber material positioned between the...
4075832 Partition for rocket motors  
A partition arrangement for rocket motors with at least two mutually independent thrust stages and nozzle and nose sides. The partition arrangement includes a partition member separating a...
4073138 Mixed mode rocket engine  
Four embodiments of high-thrust rocket engines, each having separate propellant delivery apparatus for each propellant to be delivered to the engine thrust chamber, are illustrated herein. One...
4050243 Combination solid fuel ramjet injector/port cover  
A combination injector/port cover for a solid fuel ramjet (SFRJ) having a be-in-hole injector which uses two seals to lock the tube into the air inlet and injector port during the boost phase, and...
4033115 Emergency hydraulic power system (start bottle)  
An emergency hydraulic power system for aircraft which becomes operable upon aircraft engine failure includes a hot gas turbine for driving a hydraulic pump, a decomposition chamber to provide hot...
4028886 Passive chamber wall fragmenter  
A passive chamber wall fragmenter adapted to be mounted on or in connection with a portion of a chamber wall which is mounted to be dislodged by a pressure differential across the wall portion,...
3918365 New and useful improvements in propergols or propellants  
The present invention relates to propergols or propellants in the form of blocks which comprise two propergols or propellants having different speeds of combustion and, in accordance with the...
3914935 Dual area nozzle  
A boost-sustain solid rocket system having boost and sustain grains in the rocket casing with a fixed nozzle and a movable nozzle, which is operable in response to a pressure drop to a...
3910037 Dual fuel rocket engine  
A chemical rocket engine incorporates the necessary valves, feed lines, preburners, turbopumps and injectors to enable a single combustion/thrust chamber to operate with two different propellant...
3889462 Consumable detonation reaction engine and system  
A detonation-reaction engine for attachment to a payload for propelling it at high velocities comprises a stage or stages, each having a sheet of explosive material, a sheet of material for...
3888079 Solid propellant rocket motor  
A rocket motor having at least two coaxial combustion chambers, one arranged behind the other and each containing a solid propellant charge. A partition is positioned between the first and second...
3885385 BASE DRAG REDUCTION  
Means for reducing or eliminating the base drag of a rocket motor is provd by selected configurations of a drag reducing propellant. The drag reducing propellant is a slow burning propellant which...
3879942 Partition for rocket engines  
A partition arrangement for separating a rear combustion chamber space having a propulsion nozzle leading from the rear end thereof from a forward chamber. The partition includes a partition wall...
3857239 SELECTABLE-IMPULSE SOLID PROPELLANT ROCKET MOTOR  
A solid propellant rocket motor having its grain divided into a plurality distinct, successive layers or zones of propellant, each layer or zone being separated by a thin layer of barrier material....
Matches 1 - 50 out of 127 1 2 3 >