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 |
| 7891192 | Gas turbine engine combustor assembly having integrated control valves A combustor assembly for a gas turbine engine includes a combustor endcover having at least one fuel circuit and mounted thereto a plurality of pre-mixers and at least one control valve. The at least one control valve is fluidly connected to the at least one fuel ci... | 02/22/2011 |
| 7114321 | Thermal isolation device for liquid fuel components A thermal isolation device for a gas turbine combustor assembly includes a plurality of substantially flat plates secured in spaced relationship by a plurality of columns, at least one column incorporating a bolt hole for use in securing the device between a pair of... | 10/03/2006 |
| 7065955 | Methods and apparatus for injecting cleaning fluids into combustors A method details injecting water into a gas turbine engine to facilitate cleaning an inner surface of a combustor. The method comprises removing an axial fuel injector from the combustor, wherein the fuel injector includes a nozzle stem, and inserting a spray nozzle... | 06/27/2006 |
| 7036302 | Controlled pressure fuel nozzle system A multi-staged gas turbine engine fuel supply system includes a plurality of fuel injectors and at least first and second staged fuel injection circuits in each of the fuel injectors. Each of the first and second staged fuel injection circuits includes first and sec... | 05/02/2006 |
| 6955040 | Controlled pressure fuel nozzle injector A multi-staged gas turbine engine fuel supply fuel injector includes at least first and second staged fuel injection circuits having first and second fuel injection points. At least first and second fuel nozzle valves operable to open at different first and second c... | 10/18/2005 |
| 6931831 | Distributor purge valve A combination distributor purge valve unit for a turbine engine has a pilot air section, a fuel section, a distributor section and a purge air section. A spool moves along a spool axis to control flow through six sets of radially arranged removable fill nozzles and ... | 08/23/2005 |
| 6901953 | Fuel metering device for a turbomachine injector A fluid metering device including a metering valve capable of sliding in a bushing under fluid feed pressure in order to enable a fluid to be admitted and then ejected. The valve can have, at a first end, an opening opening out into a longitudinal fluid admission bo... | 06/07/2005 |
| 6758043 | Turbomachine injectors A fuel injector for a turbomachine engine, the injector comprising an injector body having pressurized fuel admission means, a first valve mounted downstream from the pressurized fuel admission means and arranged to admit fuel into the injector body, a second valve ... | 07/06/2004 |
| 6619025 | Ecology valve and system in an aircraft engine fuel system The present invention is directed toward an ecology valve that drains working fuel to the sump chamber of the ecology valve upon engine shut down. The ecology valve has a piston slidable in the piston chamber between shut-off and run positions. The piston... | 09/16/2003 |
| 6543232 | Valve assembly for use in a gas fuel nozzle A valve assembly that is useful for controlling fuel delivery utilizes turbine power available from the steady state fuel flow within the valve assembly. A turbine element, which is moved by the steady state fuel flow, provides a motive force to a valve e... | 04/08/2003 |
| 6247317 | Fuel nozzle helical cooler A fuel injector for a gas turbine engine, including an axial fuel chamber and a spiral metering valve in the chamber.... | 06/19/2001 |
| 6189321 | Distributor A distributor for supplying burners of a gas turbine with fuel, air and coolant. Prior art distributors contain a combination of ring lines and tie lines, over which the fuel is distributed to individual burners. It is very complicated and expensive to re... | 02/20/2001 |
| 5528897 | Fuel supply system for a gas turbine engine A fuel supply system for a gas turbine engine is disclosed which incorporates a discharge conduit into the fuel supply system such that an increase in the temperature of the fuel in the fuel injector conduits after engine shut-down will cause a valve in t... | 06/25/1996 |
| 5463863 | Fuel control system A fuel control system for a gas turbine aero engine comprises a first metering valve 22 which is controlled by a feed back loop 43 in flow series with a manually operated metering valve 34. A pressure drop regulator 31, 39 regulates the pressure drop acro... | 11/07/1995 |
| 5339636 | Fuel splitter valve assembly for gas turbine A fuel delivery system (10) incorporates a fuel splitter valve assembly (30) including a first valve (40) having a selectively positionable spool (42) disposed therein for controllably metering fuel flow therethrough for delivery to a first combustion cha... | 08/23/1994 |
| 5321949 | Staged fuel delivery system with secondary distribution valve A fuel delivery system for a turbine engine having a primary fuel flow circuit and a secondary fuel flow circuit. The primary fuel flow circuit has a unstaged-first manifold and a staged-second manifold. A control valve and flow meter regulate the amount ... | 06/21/1994 |
| 5265415 | Liquid fuel injection elements for rocket engines Thrust chambers for liquid propellant rocket engines include three principal components. One of these components is an injector which contains a plurality of injection elements to meter the flow of propellants at a predetermined rate, and fuel to oxidizer... | 11/30/1993 |
| 5242117 | Fuel injector for a gas turbine engine A fuel injector is disclosed for injecting fuel into a combustion chamber a gas turbine engine which includes an injector nozzle having a central axis, first and second fuel injection paths in which one of the fuel injection paths supplies fuel to the in... | 09/07/1993 |
| 5211004 | Apparatus for reducing fuel/air concentration oscillations in gas turbine combustors A lean burn gas turbine combustor has a premixer zone receiving compressor discharge air through openings in a combustor liner. A fuel nozzle has an upstream orifice 52, a downstream orifice 56, and a captured response volume 54 therebetween. Upstream ori... | 05/18/1993 |
| 5207055 | Volume enhanced turbine engine combustion zone In order to establish a larger dome height to thereby increase combustion volume within the same turbine engine envelope, the inner wall region of an annular combustor is formed to define a thrust nozzle which in turn provides an enhanced combustion zone.... | 05/04/1993 |
| 5102054 | Airblast fuel injector with tubular metering valve An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving ch... | 04/07/1992 |
| 5095694 | Fuel purging system for a turbine engine A purge system for the fuel injection system of a turbine engine is simplified by utilizing a system including first and second three-way valves 42, 44, each having an inlet port 46, an outlet port 48, and an inlet-outlet port 50 together with a movable v... | 03/17/1992 |
| 5003771 | Fuel distribution valve for a combustion chamber A fuel distribution valve 16 for a gas turbine engine is disclosed. Various construction details are developed which improve the ability of the combustion chamber 12 to avoid blowouts of the combustion chamber. In one particular embodiment, the fuel distr... | 04/02/1991 |
| 4962889 | Airblast fuel injection with adjustable valve cracking pressure An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characterisitics of the injector tip. The injector tip includes a fuel receiving c... | 10/16/1990 |
| 4938417 | Airblast fuel injector with tubular metering valve An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving ch... | 07/03/1990 |
| 4841725 | Fuel spray device for gas turbine augmentor or afterburner The fuel spray device is adapted for use in the thrust augmentor or afterburner of a gas turbine engine. The fuel spray device includes a fuel spray manifold having a plurality of spaced apart ejection orifices and a plurality of nozzle pintles each havin... | 06/27/1989 |
| 4825819 | Hypergolic/catalytic actuator A fluid-powered actuator has a piston slidably mounted in a cylinder. The piston subdivides the cylinder into first and second end chambers. A plurality of solenoid valves are arranged to selectively inject fuel and oxidizer into either chamber, or to inj... | 05/02/1989 |
| 4644745 | Fixed geometry rocket thrust chamber with variable expansion ratio The present invention provides a rocket thrust chamber (30) comprising a combustor (32) with a fixed divergent profile, a nozzle (36) for further expanding the output of the divergent combustor and a high-velocity, throttleable injector (34) for injecting... | 02/24/1987 |
| 4638636 | Fuel nozzle A fuel nozzle including a hollow body having an inlet, an outlet and a stationary surface are disclosed. Means for modulating fuel flow from the inlet to the outlet are also disclosed and comprise a flexible pressure-responsive diaphragm fixedly mounted i... | 01/27/1987 |
| 4590768 | Fuel distribution valve flow trimming and locking means A gas turbine engine fuel distribution system includes a fuel distribution valve having a single fuel inlet and a plurality of fuel discharge ports, each of which are connected by an individual fuel manifold to the inlet of an engine fuel injector. The di... | 05/27/1986 |
| 4305255 | Combined pilot and main burner The invention relates to a fuel system for a gas turbine engine wherein an annular combustion chamber 10 has an annular series of pairs of first and second nozzles 15,16. In one mode of operation fuel is supplied only to the first nozzles 15. In another m... | 12/15/1981 |
