GB1345322A - Servo-motor - Google Patents

Servo-motor

Info

Publication number
GB1345322A
GB1345322A GB2391371*A GB2391371A GB1345322A GB 1345322 A GB1345322 A GB 1345322A GB 2391371 A GB2391371 A GB 2391371A GB 1345322 A GB1345322 A GB 1345322A
Authority
GB
United Kingdom
Prior art keywords
piston
contact
cavity
armature
resistor
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
GB2391371*A
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.)
Danfoss AS
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
Publication of GB1345322A publication Critical patent/GB1345322A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
    • G05D23/1921—Control of temperature characterised by the use of electric means characterised by the type of controller using a thermal motor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
    • H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

1345322 Temperature-responsive actuators DANFOSS A S 19 April 1971 [18 March 1970] 23913/71 Heading F1S [Also in Divisions G1 and H1] During normal operation of the actuator, the piston 5 moves in and out of the cavity 2 depending on the volume of the expansible substance 3. This movement is transmitted to the lever 12 via a friction plate 13 on heating up of the expansible substance 3 by a resistor 4 the piston is pushed out of the cavity a short distance. This causes the lever 12 to rotate about its pivot 11 which in turn causes the contact 15a and the armature 18 to move away from their middle or equilibrium position. After moving a short distance the contact 15a moves away from the contact 15b and the power supply to the resistor is cut off. The expansible substance then begins to cool and the piston 5 is pushed back into the cavity 2. As the expansible substance contracts eventually the contact 15a is carried back into contact with the contact 15b and power is again supplied to the resistor 4. If the switch 27 is closed for a brief period the armature 18 moves up to the stop 29. This causes the friction plate to slide over a predetermined distance along the piston 5. In this position the switch 14 is closed. As a result of the heating, the piston 5 is pushed out of the cavity 2 until the armature has again reached its middle position thus the friction plate 13 has been displaced over a predetermined distance relative to the piston 5. A member that has to be controlled can be connected to the free end 9 of the piston.
GB2391371*A 1970-03-18 1971-04-19 Servo-motor Expired GB1345322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2012869 1970-03-18

Publications (1)

Publication Number Publication Date
GB1345322A true GB1345322A (en) 1974-01-30

Family

ID=5765466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2391371*A Expired GB1345322A (en) 1970-03-18 1971-04-19 Servo-motor

Country Status (3)

Country Link
DE (1) DE2012869B1 (en)
DK (1) DK133516C (en)
GB (1) GB1345322A (en)

Also Published As

Publication number Publication date
DK133516B (en) 1976-05-31
DK133516C (en) 1976-10-18
DE2012869B1 (en) 1971-08-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees