GB1240286A - Improvements in or relating to electromechanical actuators - Google Patents

Improvements in or relating to electromechanical actuators

Info

Publication number
GB1240286A
GB1240286A GB46110/68A GB4611068A GB1240286A GB 1240286 A GB1240286 A GB 1240286A GB 46110/68 A GB46110/68 A GB 46110/68A GB 4611068 A GB4611068 A GB 4611068A GB 1240286 A GB1240286 A GB 1240286A
Authority
GB
United Kingdom
Prior art keywords
valve
fuel
pilot valve
spring
plunger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB46110/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Physics International Co
Original Assignee
Physics International Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Physics International Co filed Critical Physics International Co
Publication of GB1240286A publication Critical patent/GB1240286A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H02N2/04—Constructional details
    • H02N2/043—Mechanical transmission means, e.g. for stroke amplification
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
    • H10N30/503—Piezoelectric or electrostrictive devices having a stacked or multilayer structure having a non-rectangular cross-section in a plane orthogonal to the stacking direction, e.g. polygonal or circular in top view
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/88—Mounts; Supports; Enclosures; Casings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Multiple-Way Valves (AREA)

Abstract

1,240,286. Valves. PHYSICS INTERNATIONAL CO. 27 Sept., 1968 [27 Sept., 1967], No. 46110/68. Heading F2V. [Also in Divisions F1, G3 and H2] A fuel-injection valve is controlled by an electro-expansive body 54, Fig. 3, such as a piezo-electric element, having a surface 56 for transmitting the movement of the body through a non-compressible fluid in a chamber 58 to a smaller surface 60. The latter forms part of a pilot valve which allows pressurized fuel to flow through passages 62, 64 to lift a plunger 86 and the valve 76 against a spring-load 78. The fuel beneath the plunger escapes through passages 66, 90 when the pilot valve returns to its original position and the actuating time of the valve is proportional to the magnitude of the electric signal applied to the body 54. Fig. 4 shows a modification in which the pilot valve 100 opens to operate a differential piston 108, 114 which applies an increased pressure to a downwardly facing conical surface on the injector valve 120. One-way fuel flow into the passage between the differential piston and the injector valve is provided by a spring-loaded valve 126. In a further modification, the differential piston is omitted and the pilot valve is arranged centrally and constructed so that its downward movement first applies an upward pressure equal to the spring-loading on the injector valve before pressurized fuel is admitted to lift the latter. A central exhaust passage may be provided through the pilot valve so that the injector valve can be lifted more rapidly against its spring. The surface of the electro-expansive body may act through the non-compressible fluid on a plunger secured to the injector valve, the pilot valve being omitted, and as shown in Fig. 7, the body 180 may be cylindrical and force fluid through passages 192, 194 to lift a plunger 196. The valve may also be constructed so that the number of fuel injection parts uncovered is proportional to the voltage applied to the electroexpansive body. A further construction in which the closure member consists of two coaxial members operated in succession by separate electroexpansive bodies permits flow durations of 100 microseconds to be achieved.
GB46110/68A 1967-09-27 1968-09-27 Improvements in or relating to electromechanical actuators Expired GB1240286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US671065A US3501099A (en) 1967-09-27 1967-09-27 Electromechanical actuator having an active element of electroexpansive material

Publications (1)

Publication Number Publication Date
GB1240286A true GB1240286A (en) 1971-07-21

Family

ID=24693012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46110/68A Expired GB1240286A (en) 1967-09-27 1968-09-27 Improvements in or relating to electromechanical actuators

Country Status (5)

Country Link
US (2) US3501099A (en)
DE (1) DE1776142C2 (en)
FR (1) FR1582379A (en)
GB (1) GB1240286A (en)
SE (1) SE342073B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228953A1 (en) * 1973-05-12 1974-12-06 Cav Ltd
GB2122257A (en) * 1982-06-04 1984-01-11 Paul Julian Moloney Valve operating mechanism for internal combustion and like-valved engines
US4593658A (en) * 1984-05-01 1986-06-10 Moloney Paul J Valve operating mechanism for internal combustion and like-valved engines
DE3714337A1 (en) * 1987-04-29 1988-11-10 Rexroth Mannesmann Gmbh Servo valve with piezoelectric activation as well as piezoelectric control motor
EP0355723B1 (en) * 1988-08-25 1993-11-18 HYDRAULIK-RING ANTRIEBS- UND STEUERUNGSTECHNIK GmbH Device for permanently affecting a fluid-stream, especially one in a valve
WO2004020134A1 (en) * 2002-08-31 2004-03-11 Atlas Copco Electric Tools Gmbh Tool
EP1814168A1 (en) * 2006-01-31 2007-08-01 Robert Bosch Gmbh Piezoelectric actuator having an integrated piezoelectric transformer
WO2012121927A3 (en) * 2011-03-10 2013-11-28 Halliburton Energy Services, Inc. Hydraulic pump with solid-state actuator
CN103953415A (en) * 2014-04-08 2014-07-30 天津大学 Novel piezoelectric stepless variable valve mechanism based on inverse piezoelectric effect

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* Cited by examiner, † Cited by third party
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US3614486A (en) * 1969-11-10 1971-10-19 Physics Int Co Lever motion multiplier driven by electroexpansive material
FR2088700A5 (en) * 1970-04-22 1972-01-07 Sopromi Soc Proc Modern Inject
US3753426A (en) * 1971-04-21 1973-08-21 Physics Int Co Balanced pressure fuel valve
DE2126777A1 (en) * 1971-05-28 1972-12-14 Bosch Gmbh Robert Pump nozzle for fuel injection for internal combustion engines
DE2126736A1 (en) * 1971-05-28 1972-12-07 Bosch Gmbh Robert Fuel injection system for internal combustion engines
DE2126787C3 (en) * 1971-05-28 1980-01-24 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection device for internal combustion engines
US3980061A (en) * 1972-03-07 1976-09-14 Mcalister Roy E Fuel injection-spark ignition system for an internal combustion engine
US3766415A (en) * 1972-04-18 1973-10-16 R Dame Piezolectric actuator
US3995813A (en) * 1974-09-13 1976-12-07 Bart Hans U Piezoelectric fuel injector valve
US4022166A (en) * 1975-04-03 1977-05-10 Teledyne Industries, Inc. Piezoelectric fuel injector valve
US4160184A (en) * 1978-01-09 1979-07-03 The Singer Company Piezoelectric actuator for a ring laser
FR2425599A1 (en) * 1978-05-10 1979-12-07 Commissariat Energie Atomique Fluid flow control valve - uses voltage applied across piezoelectric element to lift valve member off seat
CH640610A5 (en) * 1979-10-02 1984-01-13 Elektrowatt Ag ACTUATOR.
DE3037380A1 (en) * 1980-10-03 1982-05-13 Carl Schenck Ag, 6100 Darmstadt HYDRAULIC PRINTER GENERATOR AND / OR PRESSURE SUPPLY ARRANGEMENT
US4300509A (en) * 1980-10-06 1981-11-17 Ford Motor Company Fuel injection and control systems
US4499566A (en) * 1981-01-21 1985-02-12 The United States Of America As Represented By The Secretary Of The Navy Electro-ceramic stack
DE3135494A1 (en) * 1981-09-08 1983-03-24 Robert Bosch Gmbh, 7000 Stuttgart "FUEL INJECTION SYSTEM"
US4471256A (en) * 1982-06-14 1984-09-11 Nippon Soken, Inc. Piezoelectric actuator, and valve apparatus having actuator
US4550744A (en) * 1982-11-16 1985-11-05 Nippon Soken, Inc. Piezoelectric hydraulic control valve
CA1157697A (en) * 1982-12-23 1983-11-29 Norman F. Dove Lip adjustment device
US4535743A (en) * 1983-04-15 1985-08-20 Nippon Soken, Inc. Fuel injection apparatus for an internal combustion engine
JPS60104762A (en) * 1983-11-10 1985-06-10 Nippon Soken Inc Electro-distorsion actuator and fuel injection valve
US4729459A (en) * 1984-10-01 1988-03-08 Nippon Soken, Inc. Adjustable damping force type shock absorber
JPS61171874A (en) * 1985-01-28 1986-08-02 Nippon Denso Co Ltd Dual fuel injecting device
US4752712A (en) * 1985-06-10 1988-06-21 Nippon Soken, Inc. Piezoelectric laminate stack
US4841936A (en) * 1985-06-27 1989-06-27 Toyota Jidosha Kabushiki Kaisha Fuel injection control device of an internal combustion engine
US4803393A (en) * 1986-07-31 1989-02-07 Toyota Jidosha Kabushiki Kaisha Piezoelectric actuator
DE3742241A1 (en) * 1987-02-14 1988-08-25 Daimler Benz Ag Piezocontrol valve for controlling fuel injection via an injection valve in internal combustion engines
JPS63207185A (en) * 1987-02-23 1988-08-26 Toyota Motor Corp Piezoelectric actuator
DE3713697A1 (en) * 1987-04-24 1988-11-10 Licentia Gmbh Ultra-fast control valve
DE3738630C2 (en) * 1987-11-13 1995-06-08 Rexroth Mannesmann Gmbh Electro-hydraulic pressure converter device
DE3826547C2 (en) * 1988-08-04 1993-12-23 Schenck Ag Carl Fluid operated motor
US5163209A (en) * 1989-04-26 1992-11-17 Hitachi, Ltd. Method of manufacturing a stack-type piezoelectric element
US4995587A (en) * 1989-11-03 1991-02-26 Martin Marietta Corporation Motion amplifier employing a dual piston arrangement
JPH042556A (en) * 1990-04-18 1992-01-07 Aisin Seiki Co Ltd Wheel braking control device
US5055733A (en) * 1990-09-17 1991-10-08 Leonid Eylman Method for converting micromotions into macromotions and apparatus for carrying out the method
US5191687A (en) * 1990-09-28 1993-03-09 Caterpillar Inc. Process for making piezoelectric stacks
US5148077A (en) * 1990-09-28 1992-09-15 Caterpillar Inc. Coating surrounding a piezoelectric solid state motor stack
US5055734A (en) * 1990-09-28 1991-10-08 Caterpillar Inc. Single-piece multiple electrode conductor
AU6719290A (en) * 1990-09-28 1992-04-28 Caterpillar Inc. Piezoelectric solid state motor stack
US5059857A (en) * 1990-09-28 1991-10-22 Caterpillar Inc. Integral connector for a piezoelectric solid state motor stack
US5314118A (en) * 1991-02-14 1994-05-24 Mannesmann Rexroth Gmbh Piezoelectric controllable nozzle resistance for hydraulic apparatus
US5117790A (en) * 1991-02-19 1992-06-02 Caterpillar Inc. Engine operation using fully flexible valve and injection events
US5205152A (en) * 1991-02-19 1993-04-27 Caterpillar Inc. Engine operation and testing using fully flexible valve and injection events
US5155409A (en) * 1991-07-11 1992-10-13 Caterpillar Inc. Integral conductor for a piezoelectric actuator
US5168189A (en) * 1991-09-18 1992-12-01 Caterpillar Inc. Solderless connector for a solid state motor stack
US5218259A (en) * 1992-02-18 1993-06-08 Caterpillar Inc. Coating surrounding a piezoelectric solid state motor stack
US5201296A (en) * 1992-03-30 1993-04-13 Caterpillar Inc. Control system for an internal combustion engine
US5271133A (en) * 1992-09-21 1993-12-21 Caterpillar Inc. Method for making a piezoelectric stack
US5417142A (en) * 1992-12-18 1995-05-23 Caterpillar Inc. Hydraulic amplifier
US5866971A (en) * 1993-09-09 1999-02-02 Active Control Experts, Inc. Hybrid motor
DE4442649C2 (en) * 1994-11-30 1996-10-24 Siemens Ag Electro-hydraulic drive
US5787947A (en) * 1996-11-19 1998-08-04 Tetra Laval Holdings & Finance S.A. Flexible nozzle integrated with a transformable wire
DE19726125C2 (en) * 1997-06-20 1999-04-15 Telefunken Microelectron Fuel injection method
DE19735466B4 (en) * 1997-08-16 2007-06-28 Fludicon Gmbh Pressure medium motor for electrorheological fluids
US6034466A (en) * 1997-12-22 2000-03-07 Boeing North American, Inc. Amplifier for amplification of a microactuator
DE19817320C1 (en) * 1998-04-18 1999-11-11 Daimler Chrysler Ag Injector for fuel injection systems
DE19839732C2 (en) * 1998-09-01 2002-10-31 Iav Gmbh Piezoelectric-hydraulic actuator
GB9920200D0 (en) * 1999-08-27 1999-10-27 Lucas Ind Plc Fuel pump
US6745958B2 (en) * 2002-02-05 2004-06-08 International Engine Intellectual Property Company, Llc Dual control valve
JP4673059B2 (en) * 2002-08-16 2011-04-20 フラウンホーファー・ゲゼルシャフト・ツール・フェルデルング・デア・アンゲヴァンテン・フォルシュング・エー・ファウ Films and composite films with perforation patterns mainly used in the manufacture of electrochemical parts
DE10326707B3 (en) * 2003-06-11 2005-01-27 Westport Germany Gmbh Valve device and method for injecting gaseous fuel
US7746715B2 (en) * 2003-08-13 2010-06-29 Nxp B.V. Erase and read schemes for charge trapping non-volatile memories
DE10348925A1 (en) * 2003-10-18 2005-05-12 Bosch Gmbh Robert Fuel injector with multipart, directly controlled injection valve member
DE10358818B3 (en) * 2003-12-12 2004-12-30 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Piezoelectric-hydraulic drive for poppet valve in internal combustion engine, has two large surface-area stacks of piezoelectric elements side-by-side with channels leading to small working chambers
DE102006018916A1 (en) 2006-04-24 2007-10-25 Siemens Ag Fluid e.g. fuel, injector`s metallic body for internal combustion engine of motor vehicle, has electrical conductors led through ceramic bodies that are fastened to recesses by hard solder joints, and grooves formed outside recesses
US7506825B2 (en) * 2006-05-31 2009-03-24 Caterpillar Inc. Fuel injector control system
US7628139B2 (en) * 2006-07-11 2009-12-08 Detroit Diesel Corporation Fuel injector with dual piezo-electric actuator
US7928638B2 (en) * 2008-06-30 2011-04-19 Maliakal Ashok J Electromechanical actuators
US11161125B2 (en) * 2015-06-22 2021-11-02 Agency For Science, Technology And Research Fluid jet dispenser using multilayer ceramic actuators

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US3194162A (en) * 1962-11-15 1965-07-13 Clevite Corp Piezoelectric fuel injector
US3183672A (en) * 1964-06-03 1965-05-18 Robertshaw Controls Co Pressure responsive device with overpressure protection
CH429228A (en) * 1964-12-10 1967-01-31 Kistler Instrumente Ag Piezoelectric installation body for installation in a piezoelectric transducer
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AT286000B (en) * 1966-11-16 1970-11-25 Vibro Meter Ag Piezoelectric transducer, especially for measuring acceleration

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228953A1 (en) * 1973-05-12 1974-12-06 Cav Ltd
GB2122257A (en) * 1982-06-04 1984-01-11 Paul Julian Moloney Valve operating mechanism for internal combustion and like-valved engines
US4593658A (en) * 1984-05-01 1986-06-10 Moloney Paul J Valve operating mechanism for internal combustion and like-valved engines
DE3714337A1 (en) * 1987-04-29 1988-11-10 Rexroth Mannesmann Gmbh Servo valve with piezoelectric activation as well as piezoelectric control motor
EP0355723B1 (en) * 1988-08-25 1993-11-18 HYDRAULIK-RING ANTRIEBS- UND STEUERUNGSTECHNIK GmbH Device for permanently affecting a fluid-stream, especially one in a valve
WO2004020134A1 (en) * 2002-08-31 2004-03-11 Atlas Copco Electric Tools Gmbh Tool
EP1814168A1 (en) * 2006-01-31 2007-08-01 Robert Bosch Gmbh Piezoelectric actuator having an integrated piezoelectric transformer
WO2012121927A3 (en) * 2011-03-10 2013-11-28 Halliburton Energy Services, Inc. Hydraulic pump with solid-state actuator
CN103953415A (en) * 2014-04-08 2014-07-30 天津大学 Novel piezoelectric stepless variable valve mechanism based on inverse piezoelectric effect
CN103953415B (en) * 2014-04-08 2016-07-06 天津大学 Piezoelectric type stepless variable valve mechanism based on inverse piezoelectric effect

Also Published As

Publication number Publication date
DE1776142C2 (en) 1983-05-26
US3635016A (en) 1972-01-18
US3501099A (en) 1970-03-17
DE1776142A1 (en) 1971-07-01
FR1582379A (en) 1969-09-26
SE342073B (en) 1972-01-24

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