WO2009026921A3 - A thermostat for controlling a valve - Google Patents

A thermostat for controlling a valve Download PDF

Info

Publication number
WO2009026921A3
WO2009026921A3 PCT/DK2008/000304 DK2008000304W WO2009026921A3 WO 2009026921 A3 WO2009026921 A3 WO 2009026921A3 DK 2008000304 W DK2008000304 W DK 2008000304W WO 2009026921 A3 WO2009026921 A3 WO 2009026921A3
Authority
WO
WIPO (PCT)
Prior art keywords
thermostat
valve
controlling
value
temperature
Prior art date
Application number
PCT/DK2008/000304
Other languages
French (fr)
Other versions
WO2009026921A2 (en
Inventor
Bjarne Frederiksen
Anders Ostergaard Clausen
Original Assignee
Danfoss A/S
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 A/S filed Critical Danfoss A/S
Publication of WO2009026921A2 publication Critical patent/WO2009026921A2/en
Publication of WO2009026921A3 publication Critical patent/WO2009026921A3/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/023—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed outside a regulating fluid flow

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)
  • Control Of Temperature (AREA)

Abstract

The invention provides a thermostat (l)which is attachable to a valve, e.g. of a radiator for controlling the temperature of an environment. The thermostat comprises a handle (4) by which a user may set a desired temperature set-value, and a thermo sensitive element (5) which controls the valve based on a sensed temperature. To enable temporary changes, the thermostat further comprises a switch function which can be activated to change the setting of the valve without changing the set-value.
PCT/DK2008/000304 2007-08-28 2008-08-26 A thermostat for controlling a valve WO2009026921A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200701223 2007-08-28
DKPA200701223 2007-08-28

Publications (2)

Publication Number Publication Date
WO2009026921A2 WO2009026921A2 (en) 2009-03-05
WO2009026921A3 true WO2009026921A3 (en) 2011-01-13

Family

ID=40042963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2008/000304 WO2009026921A2 (en) 2007-08-28 2008-08-26 A thermostat for controlling a valve

Country Status (1)

Country Link
WO (1) WO2009026921A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746889B1 (en) * 2012-12-22 2016-05-11 Danfoss A/S A method and an adjusting tool for adjusting a presetting of a valve, in particular a heat exchanger valve
EP2902680B1 (en) * 2014-01-29 2016-11-02 Danfoss A/S A motor driven actuator with a calibration/pre-set manipulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19513996A1 (en) * 1995-04-13 1996-10-17 Roland Drignath Switch-on of heating thermostat after time-limited ventilation of room
WO2000061974A1 (en) * 1999-04-13 2000-10-19 Danfoss A/S Device for reversibly adjusting a valve tappet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19513996A1 (en) * 1995-04-13 1996-10-17 Roland Drignath Switch-on of heating thermostat after time-limited ventilation of room
WO2000061974A1 (en) * 1999-04-13 2000-10-19 Danfoss A/S Device for reversibly adjusting a valve tappet

Also Published As

Publication number Publication date
WO2009026921A2 (en) 2009-03-05

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