[go: up one dir, main page]

GB1354490A - Electric actuators - Google Patents

Electric actuators

Info

Publication number
GB1354490A
GB1354490A GB3597970A GB1354490DA GB1354490A GB 1354490 A GB1354490 A GB 1354490A GB 3597970 A GB3597970 A GB 3597970A GB 1354490D A GB1354490D A GB 1354490DA GB 1354490 A GB1354490 A GB 1354490A
Authority
GB
United Kingdom
Prior art keywords
motor
circuit
control
july
stopped
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
GB3597970A
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.)
ELECTRIC ACTUATOR CO Ltd
Original Assignee
ELECTRIC ACTUATOR CO Ltd
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 ELECTRIC ACTUATOR CO Ltd filed Critical ELECTRIC ACTUATOR CO Ltd
Publication of GB1354490A publication Critical patent/GB1354490A/en
Expired legal-status Critical Current

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
    • 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
    • F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Motor And Converter Starters (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1354490 Control of A.C. motors ELECTRIC ACTUATOR CO Ltd 20 July 1971 [24 July 1970] 35979/70 Heading H2J [Also in Division F2] An A.C. induction motor driving the push-pull rod of an actuator operating a valve (see Division F2) is stopped or reversed by a control circuit which directly detects an increase in the electrical load of the motor consequent upon the arrest of the rod at the end of its working stroke. The circuit shown employs the coil CT1 to sense the stator current of the motor and the relay RE1 to control the power supply of the motor. A typical operation of the circuit is described, including actuation of a manual switch S1 when the motor is started after being stopped, whereby operation of the circuit is prevented during the period of the initial starting surge of current to the motor.
GB3597970A 1970-07-24 1970-07-24 Electric actuators Expired GB1354490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3597970 1970-07-24

Publications (1)

Publication Number Publication Date
GB1354490A true GB1354490A (en) 1974-06-05

Family

ID=10383622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3597970A Expired GB1354490A (en) 1970-07-24 1970-07-24 Electric actuators

Country Status (10)

Country Link
AU (1) AU469617B2 (en)
BE (1) BE770362A (en)
CA (1) CA952177A (en)
DE (1) DE2136970A1 (en)
ES (1) ES200379Y (en)
FR (1) FR2103357A5 (en)
GB (1) GB1354490A (en)
IN (1) IN138590B (en)
NL (1) NL7110233A (en)
ZA (1) ZA714774B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4666026A (en) * 1984-02-07 1987-05-19 Yvan Poulin Drive mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4666026A (en) * 1984-02-07 1987-05-19 Yvan Poulin Drive mechanism

Also Published As

Publication number Publication date
ES200379Y (en) 1976-02-01
ZA714774B (en) 1972-07-26
AU3158371A (en) 1973-01-25
CA952177A (en) 1974-07-30
FR2103357A5 (en) 1972-04-07
NL7110233A (en) 1972-01-26
DE2136970A1 (en) 1972-02-10
IN138590B (en) 1976-02-28
BE770362A (en) 1971-12-01
AU469617B2 (en) 1976-02-19
ES200379U (en) 1975-10-01

Similar Documents

Publication Publication Date Title
ES475630A1 (en) Oscillating-armature motor for electric dryshavers and the like
GB1354490A (en) Electric actuators
FR2292096A2 (en) Actuating circuit for motor vehicle sliding roof - ensures power to actuating motor for smooth operation of the sliding roof
GB274437A (en) Improvements in and relating to electric motor control
GB1044569A (en) Control system for cranes
GB631696A (en) Improvements in and relating to the starting of single phase induction motors
SU144211A1 (en) The method of controlling the electric mechanisms of the stop
RU2118866C1 (en) Control device for reversing electromagnetic contactor
GB1206240A (en) Improvements in or relating to electric motors
SU1344711A1 (en) Direct current electric drive of mine hoist unit
SU69240A1 (en) Electromagnetic relay
SU898582A1 (en) Device for control of multi-speed electric motor
GB1358742A (en) Electrical motors
SU797038A1 (en) Dc electric drive
SU135944A1 (en) Method of electric braking of asynchronous motors
GB632468A (en) Improvements in or relating to single-phase induction motors
GB1417386A (en) Asynchronous motor and control circuit therefor
FR2379151A1 (en) Electrical contact breaker with integral armature - has release electromagnet with armature integral with moving contact
JPS5246419A (en) Electric motor
GB778965A (en) Improvements in or relating to electric lift systems
CS245030B1 (en) Electric connection for internal combustion engine's starting
JPS51122711A (en) Control circuit for pole change motors
GB590379A (en) Means for the protection of electric motors against overloading
GB1439453A (en) Dc electric motors
GB543910A (en) Improvements in or relating to electric motor controllers

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee