FR2303275A1 - Thermostatic controller probe with differential expansion element - has oil and wax filling as damping against rapid fluctuations - Google Patents

Thermostatic controller probe with differential expansion element - has oil and wax filling as damping against rapid fluctuations

Info

Publication number
FR2303275A1
FR2303275A1 FR7606117A FR7606117A FR2303275A1 FR 2303275 A1 FR2303275 A1 FR 2303275A1 FR 7606117 A FR7606117 A FR 7606117A FR 7606117 A FR7606117 A FR 7606117A FR 2303275 A1 FR2303275 A1 FR 2303275A1
Authority
FR
France
Prior art keywords
oil
expansion element
wax filling
differential expansion
against rapid
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.)
Granted
Application number
FR7606117A
Other languages
French (fr)
Other versions
FR2303275B3 (en
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 FR2303275A1 publication Critical patent/FR2303275A1/en
Application granted granted Critical
Publication of FR2303275B3 publication Critical patent/FR2303275B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B1/00—Sensitive elements capable of producing movement or displacement for purposes not limited to measurement; Associated transmission mechanisms therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
    • G01K5/04—Details
    • G01K5/12—Selection of liquid compositions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Temperature (AREA)
  • Thermally Actuated Switches (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The thermostatic controler probe consists of a hollow cylindrical tube filled with an oil such as toluence. An inner chamber of elastic material contains a wax filling with a different coefficient of expansion. The action of heat on the probe causes a pressure build-up in the capillary tube linking it to an actuator and forces the piston further out of the cylinder to operate a valve or other device. The capillary tube is also connected to a regulator device which has an inner piston to which is screwed an adjuster knob to alter the pressure in the system and hence the operating range of the actuator.
FR7606117A 1975-03-05 1976-03-04 Thermostatic controller probe with differential expansion element - has oil and wax filling as damping against rapid fluctuations Granted FR2303275A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752509424 DE2509424B2 (en) 1975-03-05 1975-03-05 SENSOR FOR A THERMOSTATIC CONTROL CIRCUIT

Publications (2)

Publication Number Publication Date
FR2303275A1 true FR2303275A1 (en) 1976-10-01
FR2303275B3 FR2303275B3 (en) 1978-12-01

Family

ID=5940437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606117A Granted FR2303275A1 (en) 1975-03-05 1976-03-04 Thermostatic controller probe with differential expansion element - has oil and wax filling as damping against rapid fluctuations

Country Status (3)

Country Link
JP (1) JPS51113168A (en)
DE (1) DE2509424B2 (en)
FR (1) FR2303275A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391798A1 (en) * 2002-08-20 2004-02-25 Otto Egelhof GmbH & Co. KG Thermal linear actuator
GB2521584A (en) * 2013-09-23 2015-07-01 Jaguar Land Rover Ltd Wax Thermostat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4718909U (en) * 1971-04-01 1972-11-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391798A1 (en) * 2002-08-20 2004-02-25 Otto Egelhof GmbH & Co. KG Thermal linear actuator
GB2521584A (en) * 2013-09-23 2015-07-01 Jaguar Land Rover Ltd Wax Thermostat
GB2521584B (en) * 2013-09-23 2017-05-03 Jaguar Land Rover Ltd Wax Thermostat

Also Published As

Publication number Publication date
DE2509424A1 (en) 1976-09-09
JPS51113168A (en) 1976-10-06
DE2509424B2 (en) 1977-03-24
FR2303275B3 (en) 1978-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse