Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8141339 | Injector assembly having multiple manifolds for propellant delivery There is provided an injector assembly having two or more oxidizer manifolds and/or two or more fuel manifolds for delivery of liquid propellants to a combustion chamber such that combustion instability is reduced or eliminated during throttling. Delivery of the oxi... | 03/27/2012 |
| 8141338 | Device for injecting mono-propellant at a flow rate that can be modulated with an injection speed that is stable The injector device for injecting a liquid mono-propellant with a large degree of flow rate modulation and an injection speed that is stable, and that is closable for extinction and re-ignition purposes, is disposed at an upstream end of the wall of a combustion cha... | 03/27/2012 |
| 8122703 | Coaxial ignition assembly A bi-propellant injector includes first and second injector elements and a spark exciter assembly. The first injector element has a conductive layer electrically connected to the spark exciter assembly and a nonconductive layer disposed on an exterior portion of the... | 02/28/2012 |
| 7900435 | Micro-coaxial injector for rocket engine An improved coaxial injector for injecting first and second propellants into a combustion chamber of a rocket engine is provided. The injector includes a first plate, a second plate, a plurality of channels formed in the first plate, and a plurality of tubes extendi... | 03/08/2011 |
| 7856806 | Propulsion system with canted multinozzle grid A propulsion system includes a canted multinozzle plate, which has a multitude of small nozzles angled (not perpendicular) to major surfaces of the multinozzle grid plate. The multinozzle plate may be a cylindrical section or plate, and the multitude of nozzles may ... | 12/28/2010 |
| 7823376 | Thrust augmentation in plug nozzles and expansion-deflection nozzles Thrust augmentation in a rocket nozzle is achieved by incorporating injectors for the introduction of unburnt fuel and oxidizer into a nozzle to combust in the nozzle and thereby supplement the primary thrust that is supplied by fuel and oxidizer that are combusted ... | 11/02/2010 |
| 7762058 | Ultra-compact, high performance aerovortical rocket thruster An ultra-compact aerovortical swirl-enhanced combustion (ASC) system features an aerovortical swirl generator for use in rocket thrusters utilizing hypergolic or non-hypergolic propellants. The ACS thruster can be sized for diameters ranging from about 0.5 to about ... | 07/27/2010 |
| 7703274 | Pintle injector To provide a simple structured and low cost pintle injector capable of uniformly atomizing and mixing fuel and oxidizer, and further improving the combustion efficiency of the combustion reaction in the combustion chamber. A pintle injector part having a first prope... | 04/27/2010 |
| 7685807 | Three component injector for kerosene-oxygen rocket engine A rocket engine system includes a combustion chamber defining a centerline axis, an oxidizer supply, a first fuel delivery circuit connected to a fuel supply, a second fuel delivery circuit connected to the fuel supply, and an injector assembly positioned at the com... | 03/30/2010 |
| 7389636 | Booster rocket engine using gaseous hydrocarbon in catalytically enhanced gas generator cycle A process and a system for delivering a propellant combination to a rocket engine is described. The process comprises the steps of providing a flow of a hydrocarbon propellant fuel, raising the pressure of the hydrocarbon propellant fuel, cracking the hydrocarbon pr... | 06/24/2008 |
| 7322739 | Sparging device for adding a processing fluid to a foodstuff A sparging device (10) includes a number of sparger or screen passages (14) each extending from a respective passage inlet to a respective passage outlet. The sparging device (10) further includes a fluid chamber (25) that defines a chamb... | 01/29/2008 |
| 7313919 | Gas turbine combustor A gas turbine combustor has a combustion chamber into which fuel and air are supplied, wherein the fuel and the air are supplied into said combustion chamber as a plurality of coaxial jets. ... | 01/01/2008 |
| 7293402 | Injection head for a liquid-propelled rocket engine An injection head for a liquid-propelled rocket engine has a plurality of first and second injection bores for injecting jets of first and second propellant constituents, respectively, into the combustion chamber of a rocket engine, with mutual mixing of propellant ... | 11/13/2007 |
| 7287725 | Missile control system and method A missile includes a control system having divert and attitude control system thrusters with control valves. Each of the control valves has a nozzle plate having a plurality of small nozzles therein. The nozzle plate includes a pair of portions, one of which is rota... | 10/30/2007 |
| 7257939 | Sliding-action magneto-mechanical injector throttling device Sliding-Action Magneto-Mechanical Injector Throttling Device (SLAMMIT) provides on-demand, yet accurate, throttling of the mass flow of the fuel and/or oxidizer into the combustion chamber of a vortex injector. At least two SLAMMIT sub-assemblies comprise the SLAMMI... | 08/21/2007 |
| 7246483 | Energetic detonation propulsion A propulsion system for creating a propulsive force has a combustion chamber, a pair of electrodes within the combustion chamber and a power supply attached to the electrodes to create a high voltage field within an initiation zone of the combustion chamber, and an ... | 07/24/2007 |
| 7243682 | Annular one-way valve A one-way valve with an annular nozzle. The valve body is a truncated cone with an interior fluid manifold. The truncated cone section includes a lower retaining groove and a fluid groove. A fluid conduit connects the interior fluid manifold to the fluid groove. An ... | 07/17/2007 |
| 7137244 | Reactor for decomposition of ammonium dinitramide-based liquid monopropellants and process for the decomposition The present invention relates to a reactor for the decomposition of ammonium dinitramide-based liquid monopropellants into hot, combustible gases for combustion in a combustion chamber, and more particularly a rocket engine or thruster comprising such reactor and a ... | 11/21/2006 |
| 7124574 | Method and apparatus for a substantially coaxial injector element A system to provide a two piece robust fluid injector. According to various embodiments, the fluid injector is a fuel injector for a combustion engine. The injector includes two coaxially formed annuluses. One annulus is formed in a face plate and the second annulus... | 10/24/2006 |
| 7104476 | Multi-sectored flat board type showerhead used in CVD apparatus Disclosed is a showerhead of a CVD apparatus comprising a plate having an empty inside and provided with a plurality of injection holes at one surface thereof; and gas supplying pipes installed at the plate so as to supply gas, wherein introduced gas thereto is inje... | 09/12/2006 |
| 7093973 | Sparging device and method for adding a processing fluid to a foodstuff A sparging device (10) includes a number of sparger or screen passages (14) each extending from a respective passage inlet to a respective passage outlet. The sparging device (10) further includes a fluid chamber (25) that defines a chamb... | 08/22/2006 |
| 7036303 | Ablative baffle for a liquid rocket engine thrust chamber An ablative baffle for a liquid rocket engine thrust chamber that includes a hub member having a hollow structure, of which both top and bottom parts are open; a plurality of blade rib members, each of which is connected removably at one end to the outer surface of ... | 05/02/2006 |
| 7017333 | Wall structure A wall structure (2) configured to be exposed to a thermal load. The wall structure having at least two layers including a first layer (5) and a second layer (6). The second layer (6) is located closer to a source of the thermal load than... | 03/28/2006 |
| 6968673 | Cool gas generator and ultra-safe rocket engine A gas generator or rocket engine includes: a first storage tank configured to contain a high-pressure liquid propellant; a nozzle connected to the first storage tank; a heat source connected between the first storage tank and the nozzle and configured to add heat to... | 11/29/2005 |
| 6964154 | Axisymmetric, throttleable non-gimballed rocket engine A rocket engine assembly is provided for a vertically launched rocket vehicle. A rocket engine housing of the assembly includes two or more combustion chambers each including an outlet end defining a sonic throat area. A propellant supply for the combustion chambers... | 11/15/2005 |
| 6951317 | Vehicle, lightweight pneumatic pilot valve and related systems therefor A vehicle, such as a missile, with a pilot valve system controls the vehicle's thrust valves despite a hostile propellant gas environment. The pilot valve system can have one or more pilot valves. Using refractory elements, the pilot valve ball reciprocates between ... | 10/04/2005 |
| 6925812 | Rotary injector A radially-extending arm is adapted to rotate within a stream of first fluid flowing thereacross. In one embodiment, the arm comprises a plurality of lands located at different radial distances from the axis of rotation, and a port located on each land is operativel... | 08/09/2005 |
| 6918243 | Bi-propellant injector with flame-holding zone igniter A bi-propellant injector (66) includes a first injector element (68) and a second injector element (70) injecting a first propellant (69) and a second propellant (71), respectively, into a combustion chamber (53). A flame-ho... | 07/19/2005 |
| 6915627 | Rocket engine The invention concerns a rocket engine wherein the combustion chamber includes at least one first monolithic component made of a thermostructural composite material comprising a porous wall through which the fuel is introduced in the core of the combustion chamber. ... | 07/12/2005 |
| 6912857 | Torch igniter An improved torch igniter for use in devices such as thrust augmenters, gas turbine engines, ramjets, combined-cycle engines and industrial burners. The torch igniter includes a housing with a combustion chamber. Fuel and oxidizer are delivered into the combustion c... | 07/05/2005 |
| 6912532 | Multi-level multiplexor system for networked browser A multi-level multiplexor system enables a networked browser client to access content information over a networked computer system, such as the Internet. The multi-level multiplexor system has at least one program executing on a server operably connected to the netw... | 06/28/2005 |
| 6895743 | Liquid propellant rocket motor The present invention provides a transpiration cooled rocket motor which operates at low combustion pressures, inherently provides stabilized combustion, and operates over a desired range of L-star. In a preferred embodiment the inventive transpiration cooled rocket... | 05/24/2005 |
| 6865878 | Hybrid rocket engine and method of propelling a rocket A hybrid rocket engine and a method for propelling a rocket utilizing a vortex flow field. The flow field includes an outer fluid vortex spiraling toward a closed end of the flow field generating apparatus and an inner fluid vortex substantially concentric with the ... | 03/15/2005 |
| 6860099 | Liquid propellant tracing impingement injector An injector for use with the rocket thruster has a plurality of fuel ports separated from a plurality of oxidizer ports. The oxidizer and fuel ports are paired together directing their respective fluids along a path with radial and tangential components so that the ... | 03/01/2005 |
| 6705076 | Rocket thrust chamber Thrust chamber housing for a driving mechanism for space travel applications which is fastened to an injection head with its first end and which includes a combustion chamber housing of a highly heat-resistant steel, a nozzle element of a platinum-iridium alloy, and... | 03/16/2004 |
| 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 |
| 6601380 | Hybrid rocket engine and method of propelling a rocket A hybrid rocket engine and a method for propelling a rocket utilizing a vortex flow field. The flow field includes an outer fluid vortex spiraling toward a closed end of the flow field generating apparatus and an inner fluid vortex substantially concentri... | 08/05/2003 |
| 6598385 | Two stage gas pilot valve controlling gas flow to a reaction jet nozzle A multi-stage pilot valve is disclosed for selectively supplying a working fluid to and venting from a reaction jet main stage actuation chamber. In a preferred embodiment of the invention, the pilot valve comprises a solenoid actuated ball and socket fla... | 07/29/2003 |
| 6591603 | Pintle injector rocket with expansion-deflection nozzle The present invention provides a rocket engine (10) that is self-compensating on nozzle thrust coefficient for varying ambient backpressures. The rocket engine (10) includes a combustion chamber (12) having an injector end (14) and a nozzle end (16). A pr... | 07/15/2003 |
| 6588199 | High performance rocket engine having a stepped expansion combustion chamber and method of making the same An improved rocket engine combustion chamber including a first chamber having a first diameter and located intermediate to a propellant injector and a second chamber having a second diameter that is larger than the first diameter. The combustion chamber e... | 07/08/2003 |
