[특허]Valve for controlling gas mass flow

[미국특허] Valve for controlling gas mass flow 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-031/12
출원번호	US-0834366 (1997-04-16)
발명자 / 주소	Vars Curtis C. Yost Jason E. McLane Joel L. Samuelson Donald R. Branch Gary F.
출원인 / 주소	Woodward Governor Company
대리인 / 주소	Leydig, Voit & Mayer, Ltd.
인용정보	피인용 횟수 : 24 인용 특허 : 37

초록 ▼

A fuel admission valve for metering gas without using a mass flow sensor. The valve uses a flow control element and nozzle, an actuator, a fuel supply pressure sensor, a fuel supply temperature sensor, a flow control element position sensor, and a flow control circuit to meter gas in sonic flow with

대표청구항 ▼

[ What is claimed is:] [1.] A gas fuel metering valve for metering gas mass flow to an internal combustion engine, said valve having no mass flow sensor but adapted to respond to an electrical signal proportional to a desired gas mass flow rate to produce an actual gas mass flow rate corresponding to the electrical signal, the metering valve comprising:a housing having an inlet port and an outlet port and a flow passage therebetween, said outlet port adapted to communicate with said engine;a nozzle mounted in the housing in said flow passage, said nozzle having a converging inlet and a diffusing outlet;a flow control element coaxial with said nozzle and mounted for controllable positioning in said nozzle to control the flow therethrough;an electrical actuator connected to said flow control element for positioning said flow control element;a gas pressure sensor in said housing, said sensor having a sensing element in said flow passage between said housing inlet port and said nozzle inlet for producing an electrical signal relating to gas pressure;a gas temperature sensor in said housing, said sensor having a sensing element in said flow passage between said housing inlet port and said nozzle inlet for producing an electrical signal relating to gas temperature;a position sensor in said housing, said sensor linked to said flow control element for producing an electrical signal relating to the position of said flow control element; andan electronic circuit having a microprocessor and software mounted in said housing, said microprocessor adapted to receive said electrical signal proportional to said desired mass flow and said signals from said gas pressure sensor, said gas temperature sensor and said position sensor, said electronic circuit having an output connected to said actuator and being adapted to produce an output signal to control said actuator to produce a mass flow dependent on said signals received by said microprocessor; andwherein said flow control element is a needle contoured to promote diffusion, said needle having a first end connected to said electrical actuator, an elongate portion having a constant diameter therealong, and a contoured tip portion having a converging diameter at a second end thereof, said elongate portion being of greater length than said tip portion, said tip portion extending into said diffusing outlet; andwherein said valve has a discharge pressure and wherein said flow control member is positioned in said nozzle to maintain sonic flow through said housing at discharge pressure to supply pressure ratios substantially above the critical pressure ratio for said fuel being flowed.

이 특허에 인용된 특허 (37) 인용/피인용 타임라인 분석

Curran John R. (180 Ebenezer Rd. Osterville MA 02655), Air flow control apparatus.
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Boyd Charles L. (Duncan OK) Stewart Joseph A. (Duncan OK), Apparatus and method for controlling and metering the flow of gas through a pipeline.
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Ishikawa Norikazu (Zama JPX) Fujisaki Masanori (Tokyo JPX), Apparatus for regulating fuel supply to liquefied petroleum gas engine.
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Henszey Richard R. (Oconomowoc WI) Weiss Bruce (Whitefish Bay WI), Automated sample conditioning module.
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Suda Koichi (Aichi JPX) Sugi Fumio (Handa JPX), Carburetor.
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Lambert John E. (Dublin OH) Schluer Larry E. (Sugar Grove OH) Dickson Douglas (Columbus OH), Carburetor assembly for an internal combustion gas engine.
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Ramaker Antonius E. T. J. (The Hague NLX) Wolters Leendert (Rhoon NLX), Control system for supplying a gas flow to a gas consumption.
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Breyer Karl,DEX, Control valve.
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Lewis Donald J. (Troy MI) Phipps Jack R. (St. Clair Shores MI), Direct liquid injection of liquid petroleum gas.
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Kahoe H. Taylor (Mentor OH) Coultas George E. (Euclid OH) Skipworth Dana W. (Cleveland OH), Electronic control for constant and variable volume central heating and air-conditioning systems.
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Westfall Thomas P. (Riverside CA) Ruiz-Vela Alberto (Alta Loma CA) Caterina Anthony J. (Riverside CA) Visser Clyde R. (Upland CA), Flow control system for medical ventilator.
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Reinicke Robert H. (Mission Viejo CA) Yang Jefferson Y. S. (Orange CA), Fluid control device.
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Kruto Donald (431 Easy St. Des Plaines IL 60016), Fluid flow control system.
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Sparks Brian E. (Weare Giffard GB2), Fluid flow control system.
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Eversole James F. (Mamaroneck NY) Berriman Lester P. (Irvine CA), Fluid flow device.
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Braun Thomas A. (Eden Prairie MN) Braun Anton (Minneapolis MN), Fuel injector for gaseous fuel.
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Johnson Roy Henry (Decatur IL) Graham Donald K. (Decatur IL), Fuel mixer.
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Varady Victor A. (Bartlett IL), Gas injection control.
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Gerassimov Milen B. (Ruse BGX) Dimitrov Stojtscho (Ruse BGX) Petkov Zonjo I. (Ruse BGX), Gas-air mixer.
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Statler William O. (Scotia NY), High turndown mass flow control system for regulating gas flow to a variable pressure system.
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Anderson Richard L. (Austin TX), Intelligent mass flow controller.
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Dolderer Erich A. (14 Goethestrasse D-7406 Mossingen 1 DEX), Internal mixture formation.
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Wilder Paul R. (Cincinnati OH) Oberrecht David A. (Cincinnati OH), Linkage assembly for a coupler.
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Vavra Randall J. (Orange CA) Doyle Michael J. (Villa Park CA) Vu Kim N. (Yorba Linda CA), Liquid flow controller.
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Shimomura Mitsuzo (Miyanohigashi JPX) Yamaguchi Masao (Miyanohigashi JPX), Mass flow controller with supplemental condition sensors.
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King Steven R. (Fort Worth TX) Cole James J. (San Antonio TX) Guglielmo Kennon H. (San Antonio TX) Latusek John P. (San Antonio TX), Metering valve.
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Pischinger Franz (Aachen DEX) Sllner Robert (Jenbach ATX), Method and apparatus for introduction of a fluid medium into working space of an internal combustion engine.
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Brooks Boyd P. (Los Gatos CA) Lee Robert A. S. (Tewksbury MA), Microprocessor-based control and diagnostic system for motor operated valves.
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Oliver Kevin F. (Northport NY) Reinicke Robert H. (Mission Viejo CA), Motor-operated valve.
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Granger Melforde A., Portable fluid dispensing apparatus.
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Cuny Francis (Mezy-sur-Seine FRX) Vermeille Hugues (Meylan FRX) Arnault Jean (Saint-Nazaire-les-Eymes FRX), Process for controlling the flow of a fluid in a valve and apparatus for carrying out said process.
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Leete Barrett C. (3065 Roaring Brook Rd. Killington VT 05751), Rotary actuator and valve control system.
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Roberts Thomas G. (Huntsville AL), Self-protecting infrared detector with a continuously variable attenuator.
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Brown Gregory C. (Minnetonka MN), Smart valve positioner.
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Platt Robert J. (Dover NJ) Shadbolt Edward A. (Basking Ridge NJ), Streamline coal slurry letdown valve.
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Smith David H. (Mercer Island WA) Miller Kenneth E. (Edmonds WA), System for controlling mass flow rates of two gases.
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Twerdochlib Michael (Oviedo FL) Bateman David E. (Geneva FL), Valve control apparatus.
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Str철hle,Werner, Apparatus for regulating the gas/air ration for a pre-mixing combustion device.
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Pursifull, Ross Dykstra; Guido, Samuel; Badillo, Ed; Saberwal, Dev, Enhanced fuel injection based on choke flow rate.
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Benson, Dwayne M., Flow control valve with integral sensor and controller and related method.
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Catchings, Alexander Roy; Brinkman, Corey Robert, Gaseous fuel delivery system.
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Walser, Michael W; Walser, Randall W; Cole, Christopher M; Sanders, Justin H; Grogan, Joseph; Shouse, Kenneth; Guglielmo, Kennon, Highly accurate continuous-flow vaporized fuel supply for large dynamic power ranges.
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Weldon, Craig Andrew, Idle air control valve for use in a small engine and having a protective shroud with valve seat.
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Wang, Paul Sai Keat; Baldwin, Darryl; Kim, Myoungjin, Integrated control system and method.
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Kipps,Thomas J.; Sharma,Sanjai; Cantwell,Mark, Methods of expressing chimeric mouse and human CD40 ligand in human CD40+ cells.
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Jansen,Harvey B., Multi-channel pintle valve.
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Jansen, Harvey B., Multi-channel, multi-phase flow metering valve.
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Cole,Alan B., Position feedback device for rotatable member.
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Jansen Harvey B., Positive shut-off metering valve with axial thread drive.
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Nist, Lance E., Remote metering for gaseous fuels and oxidizers.
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Fern찼ndez Sein,Rafael, Remotely operated self-powered gas safety valve.
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Clements,Martin A.; Hansen,Lowell D., Variable displacement pump having a rotating cam ring.
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Clements, Martin A.; Hansen, Lowell D., Variable displacement pump having rotating cam ring.
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Clements,Martin A.; Hansen,Lowell D., Variable displacement pump having rotating cam ring.
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Wark,Rickey E., Variable orifice valve for air stream containing particulate coal.
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[미국특허] Valve for controlling gas mass flow 원문보기