GB1411878A - Actuating means and especially actuating means for thermostatic systems - Google Patents

Actuating means and especially actuating means for thermostatic systems

Info

Publication number
GB1411878A
GB1411878A GB949273A GB949273A GB1411878A GB 1411878 A GB1411878 A GB 1411878A GB 949273 A GB949273 A GB 949273A GB 949273 A GB949273 A GB 949273A GB 1411878 A GB1411878 A GB 1411878A
Authority
GB
United Kingdom
Prior art keywords
sleeve
actuating means
actuating
stem
unstressed
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
GB949273A
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 GB1411878A publication Critical patent/GB1411878A/en
Expired legal-status Critical Current

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
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid 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)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Fluid-Damping Devices (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

1411878 Temperature responsive actuating elements; pressure indicators DANFOSS AS 27 Feb 1973 [4 March 1972] 9492/73 Headings G1D and G1L Actuating means comprises a resilient sleeve 2 having one end closed and arranged for receiving an actuating stem 4, the sleeve 2 having two opposed longitudinally extending walls which merge to form two longitudinal edges contained in a longitudinally extending plane, each wall bowing outwardly from the plane and the angle between inner surfaces of the wall adjacent each edge being substantially less than 180 degrees when the sleeve is unstressed, the sleeve 2 being mounted in a chamber so that, in use, a change in volume of a medium, e.g. liquid, which may be due to a change in pressure or temperature, in the chamber causes the walls to approach each other by bending at the edges. The shape of the stem preferably corresponds in cross-section to that of the unstressed sleeve, the shape being as shown in Fig. 4. Portions A are arcuate, portions B being linear or slightly curved, the ratio b/f being preferably 0.4. The angle X is 15-120 degrees. Each edge of the sleeve may be curved in cross-section, and the sleeve and actuating stem may taper longitudinally towards the closed end of the sleeve.
GB949273A 1972-03-04 1973-02-27 Actuating means and especially actuating means for thermostatic systems Expired GB1411878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2210551A DE2210551C3 (en) 1972-03-04 1972-03-04 Working element with a piston

Publications (1)

Publication Number Publication Date
GB1411878A true GB1411878A (en) 1975-10-29

Family

ID=5837946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB949273A Expired GB1411878A (en) 1972-03-04 1973-02-27 Actuating means and especially actuating means for thermostatic systems

Country Status (6)

Country Link
US (1) US3832850A (en)
CA (1) CA983450A (en)
DE (1) DE2210551C3 (en)
FR (1) FR2175410A5 (en)
GB (1) GB1411878A (en)
IT (1) IT977674B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH621424A5 (en) * 1978-02-03 1981-01-30 Elektrowatt Ag
US4291449A (en) * 1979-07-16 1981-09-29 Robertshaw Controls Company Method of making a stem seat for a piston and cylinder type thermal device
DE3514558A1 (en) * 1985-04-23 1986-10-23 Alfred Teves Gmbh, 6000 Frankfurt Brake system for motor vehicles
FR2883995A1 (en) * 2005-04-04 2006-10-06 Vernet Sa Fluid supply channel division unit for motor vehicle, has support assembly that guides piston in translation with respect to cylindrical metallic cup and seals thermo dilatable wax with reference to exterior of unit
JP3160050U (en) * 2009-05-19 2010-06-10 Osk株式会社 Thermo-element and automatic mixing faucet using thermo-element
FR2986045B1 (en) * 2012-01-19 2017-04-07 Vernet THERMOSTATIC ELEMENT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907210A (en) * 1955-06-20 1959-10-06 Riedel Walther Thermostats
US3064477A (en) * 1960-02-26 1962-11-20 Antioch College Power element
US3149455A (en) * 1963-11-06 1964-09-22 Ranco Inc Condition responsive power elements
US3420105A (en) * 1966-06-08 1969-01-07 Vernay Laboratories Thermal sensitive element

Also Published As

Publication number Publication date
DE2210551B2 (en) 1974-11-28
US3832850A (en) 1974-09-03
DE2210551A1 (en) 1973-09-13
IT977674B (en) 1974-09-20
FR2175410A5 (en) 1973-10-19
CA983450A (en) 1976-02-10
DE2210551C3 (en) 1975-07-17

Similar Documents

Publication Publication Date Title
CA1002423A (en) Pressure responsive fluid valve assembly
GB1411878A (en) Actuating means and especially actuating means for thermostatic systems
CH551568A (en) VALVE VALVE FOR DIRECTION CONTROL OF THE PRESSURE MEDIUM FOR HYDRAULIC CONSUMERS.
CA1020431A (en) Pressure compensating fluid control valve
GB1557051A (en) Fluid pressure limiting or reducing valves
CA949845A (en) Control valve for elastic pressure fluid
JPS52124791A (en) Cerebrospinal fluid pressure control valve
CA1022032A (en) Fluid flow control valve
CA706266A (en) Low torque high pressure fluid valve
AU1051470A (en) Fluid flow control valve
CA993761A (en) Fluid flow control valves
CA946705A (en) Fluid pressure regulating valves
GB1270839A (en) Improvements in or relating to fluid control valves
CA909805A (en) Fluid spring incorporating fluid medium conserving flow control means
CA809973A (en) Fluid pressure control valve
AU501998B2 (en) Fluid flow pressure control valve
AU444801B2 (en) Fluid flow control valves
CA918133A (en) Fluid flow control valves
CA793696A (en) Fluid flow control valves
CA951218A (en) Fluid flow control valve
CA778169A (en) Fluid flow control valve
CA785043A (en) Fluid flow control valve
CA789859A (en) Fluid flow control valve
CA801484A (en) Fluid flow control valve
AU436695B2 (en) Fluid flow control valve

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees