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DK200300059A - Motor controlled actuator and valve, method and applications. - Google Patents

Motor controlled actuator and valve, method and applications. Download PDF

Info

Publication number
DK200300059A
DK200300059A DK200300059A DKPA200300059A DK200300059A DK 200300059 A DK200300059 A DK 200300059A DK 200300059 A DK200300059 A DK 200300059A DK PA200300059 A DKPA200300059 A DK PA200300059A DK 200300059 A DK200300059 A DK 200300059A
Authority
DK
Denmark
Prior art keywords
motor
actuator
valve
controlled
controlled actuator
Prior art date
Application number
DK200300059A
Other languages
Danish (da)
Inventor
Jensen Kaare Vang
Soerensen Jesper Kok
Original Assignee
Danfoss As
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 Danfoss As filed Critical Danfoss As
Priority to DK200300059A priority Critical patent/DK200300059A/en
Priority to PCT/DK2004/000021 priority patent/WO2004065832A1/en
Publication of DK200300059A publication Critical patent/DK200300059A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2068—Means for returning linear actuator to zero position, e.g. upon occurrence of failure by using a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Valve Device For Special Equipments (AREA)

Description

PATENTKRAV 1. Motorstyret aktuator, hvor et aktuator-element bevæges i en retlinet bevægelse inden for to yderstillinger, styret af en positionerbar elektromotor, hvis roterende bevægelse omsættes til den retlinede bevægelse ved hjælp af en gevindspindel som er drejefast forbundet med elektromotorens roterende aksel, og en møtrik som er fast forbundet med aktuator-elementet, og hvor en fjeder som virker i aktuator-elementets bevægelsesretning, bevirker tilbagegang af aktuatorelementet til en første af de to yderstillinger hvis en energiforsyning falder bort, kendetegnet ved at elektromotoren med spindelen er forskydelig i aktuatorelementets bevægelsesretning, at fjederen påvirker elektromotoren til forskydning i retning mod den første yderstilling, og at en holdeindretning fastholder elektromotoren mod forskydning i afhængighed af at energiforsyningen er opretholdt. 2. Motorstyret aktuator ifølge krav l, hvor elektromotoren er en stepmotor. 3. Motorstyret aktuator ifølge krav 1 eller 2, hvor gevindspindelen er drejefast forbundet med motorakslen ved hjælp af en mekanisk udveksling med et omsætningsforhold forskelligt fra een. 4. Motorstyret aktuator ifølge et hvilket som helst af de foregående krav, hvor holdeindretningen udgøres af en elektromagnet som påvirker et anker. 5. Motorstyret aktuator ifølge krav 4, hvor elektromagneten er dimensioneret til først at kunne overvinde fjederens kraft, når ankeret er bevæget næsten til den stilling i forhold til elektromagneten, som det indtager under normal drift af aktuatoren. 6. Motorstyret aktuator ifølge krav 5, hvor elektromagneten er dimensioneret til først at kunne overvinde fjederens kraft, når ankeret er bevæget mere end 90 %, fortrinsvis mindst 95 %, af sin største slaglængde i retning mod den stilling i forhold til elektromagneten, som det indtager under normal drift af aktuatoren. 7. Motorstyret aktuator ifølge et hvilket som helst af kravene 4-6, hvor ankeret er styret i en udsparing i elektromagneten, og denne styring tillige udnyttes til at styre elektromotorens og spindelens bevægelse i aktuatoren. 8. Motorstyret aktuator ifølge et hvilket som helst af kravene 1-3, hvor holdeindretningen udgøres af en pal eller klinke som bevæges af en elektromagnet samt fortrinsvis tillige af en fjeder. 9. Motorstyret aktuator ifølge et hvilket som helst af de foregående krav, hvor fjederen er en skruefjeder som er trykket sammen under normal drift af aktuatoren. 10. Motorstyret aktuator ifølge et hvilket som helst af de foregående krav, hvor energiforsyningen leverer strøm til drift af elektromotoren. 11. Fremgangsmåde til tilbageføring af elektromotoren med spindelen til den stilling disse indtager under normal drift af aktuatoren ifølge krav 1, kendetegnet ved at elektromotoren udnyttes til at trykke fjederen i det mindste delvis sammen ved at rotere spindelen medens aktuatorelementet ligger an mod et stop. 12. Motorstyret ventil med et ventilhus og en aktuator som bevæger et ventilelement, kende -tegnet ved at aktuatoren udgøres af en aktuator ifølge krav 1, og at aktuatorelementet udgøres af et ventillegeme som er bevægeligt i ventilhuset. 13. Motorstyret ventil ifølge krav 12, hvor ak-tuatoren er mediefyldt. 14. Motorstyret ventil ifølge krav 12 eller 13, hvor ventilen lukkes når energiforsyningen falder bort. 15. Anvendelse af dem motorstyrede ventil ifølge krav 12 som ekspansionsventil i et kompressordrevet køleanlæg. 16. Anvendelse af dem motorstyrede ventil ifølge krav 12 som trykregulatorventil i et kompressordrevet køleanlæg.PATENT REQUIREMENT 1. Motor controlled actuator, wherein an actuator element is moved in a rectilinear motion within two outer positions, controlled by a positionable electric motor whose rotary motion is converted to the rectilinear motion by a threaded spindle which is pivotally connected to the rotary shaft of the electric motor, and a nut which is firmly connected to the actuator element and wherein a spring acting in the direction of movement of the actuator element causes the return of the actuator element to a first of the two outer positions if an energy supply fails, characterized in that the electric motor with the spindle is slidable in the actuator element. direction of movement, that the spring affects the electric motor for shear in the direction of the first outer position, and that a holding device holds the electric motor against shear as the energy supply is maintained. The motor controlled actuator according to claim 1, wherein the electric motor is a stepper motor. The motor-controlled actuator according to claim 1 or 2, wherein the threaded spindle is pivotally connected to the motor shaft by means of a mechanical exchange with a turnover ratio different from one. The motor-controlled actuator according to any one of the preceding claims, wherein the holding device is constituted by an electromagnet acting on an anchor. The motor-controlled actuator according to claim 4, wherein the electromagnet is designed to only be able to overcome the spring force when the anchor is moved almost to the position relative to the electromagnet it occupies during normal operation of the actuator. The motor-controlled actuator of claim 5, wherein the electromagnet is dimensioned to first overcome the force of the spring when the anchor is moved more than 90%, preferably at least 95%, of its greatest stroke in the direction relative to the position relative to the electromagnet as it is. consumes during normal operation of the actuator. The motor-controlled actuator according to any one of claims 4-6, wherein the anchor is controlled in a recess in the electromagnet and this control is also used to control the movement of the electric motor and the spindle in the actuator. The motor controlled actuator according to any one of claims 1-3, wherein the holding device is constituted by a pawl or latch which is moved by an electromagnet and preferably also by a spring. An engine controlled actuator according to any one of the preceding claims, wherein the spring is a coil spring which is compressed during normal operation of the actuator. The motor controlled actuator according to any one of the preceding claims, wherein the power supply supplies power for operation of the electric motor. Method for returning the electric motor with the spindle to the position they occupy during normal operation of the actuator according to claim 1, characterized in that the electric motor is used to compress the spring at least partially by rotating the spindle while the actuator element is abutting a stop. 12. Motor-controlled valve with a valve housing and an actuator moving a valve element, characterized in that the actuator is constituted by an actuator according to claim 1, and that the actuator element is constituted by a valve body movable in the valve housing. The motor-controlled valve according to claim 12, wherein the actuator is media-filled. The motor controlled valve of claim 12 or 13, wherein the valve is closed when the power supply fails. Use of the motor controlled valve according to claim 12 as an expansion valve in a compressor driven refrigeration system. Use of the motor controlled valve according to claim 12 as a pressure regulator valve in a compressor driven refrigeration system.

DK200300059A 2003-01-20 2003-01-20 Motor controlled actuator and valve, method and applications. DK200300059A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK200300059A DK200300059A (en) 2003-01-20 2003-01-20 Motor controlled actuator and valve, method and applications.
PCT/DK2004/000021 WO2004065832A1 (en) 2003-01-20 2004-01-16 Motor-controlled actuator, valve, method and applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK200300059A DK200300059A (en) 2003-01-20 2003-01-20 Motor controlled actuator and valve, method and applications.

Publications (1)

Publication Number Publication Date
DK200300059A true DK200300059A (en) 2004-07-21

Family

ID=32748720

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200300059A DK200300059A (en) 2003-01-20 2003-01-20 Motor controlled actuator and valve, method and applications.

Country Status (2)

Country Link
DK (1) DK200300059A (en)
WO (1) WO2004065832A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008091202A1 (en) * 2007-01-25 2008-07-31 Aktiebolaget Skf An influencing mechanism to be used in a stop valve and/or regulating valve
BRPI0817716A2 (en) 2007-10-02 2015-03-31 Skf Ab Valve Actuator, and, Emergency Valve Actuator Device
US8621949B2 (en) 2008-07-11 2014-01-07 Aktiebolaget Skf Safety device for a linear actuator and a linear actuator
SI23058A (en) 2009-05-04 2010-11-30 Peter@Sever Device for positioning with integrated safety function
US10024450B2 (en) * 2015-11-25 2018-07-17 Woodward, Inc. High speed shutdown device for electric actuator
GB2548566A (en) * 2016-03-21 2017-09-27 Flowinn (Shanghai) Ind Co Ltd Speed-adjustable returning device of valve actuator
JP2017219230A (en) * 2016-06-06 2017-12-14 株式会社デンソー Decompressor
CN110762276B (en) * 2019-09-24 2022-03-08 浙江盾安禾田金属有限公司 Electronic expansion valve

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141519A1 (en) 1971-08-19 1973-02-22 Kloeckner Humboldt Deutz Ag MOTOR DRIVE FOR CONTROL ELEMENTS
US4501981A (en) 1981-10-15 1985-02-26 Haydon Switch & Instrument, Inc. Return-to-zero stepper motor
JPS62136680U (en) 1986-02-21 1987-08-28
US4782811A (en) 1987-03-30 1988-11-08 Robertshaw Controls Company Exhaust gas recirculation valve construction and method of making the same
JPH01295085A (en) * 1988-05-20 1989-11-28 Kimura Koki Kk Proportional electrically driven two-way valve
DE19516054A1 (en) * 1994-05-11 1995-11-16 Kromschroeder Ag G Controllable valve with stepping motor movable by electromagnet
US6375086B1 (en) * 2001-07-30 2002-04-23 Eaton Corporation Modulating refrigerant flow through a motorized expansion valve

Also Published As

Publication number Publication date
WO2004065832A1 (en) 2004-08-05

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