GB1402574A - Pneumatic thermosensor - Google Patents

Pneumatic thermosensor

Info

Publication number
GB1402574A
GB1402574A GB4671972A GB4671972A GB1402574A GB 1402574 A GB1402574 A GB 1402574A GB 4671972 A GB4671972 A GB 4671972A GB 4671972 A GB4671972 A GB 4671972A GB 1402574 A GB1402574 A GB 1402574A
Authority
GB
United Kingdom
Prior art keywords
connection
tube
rod
oct
valve
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
GB4671972A
Inventor
H G Ivanov
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.)
NIPKIHMASCH
Original Assignee
NIPKIHMASCH
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 NIPKIHMASCH filed Critical NIPKIHMASCH
Publication of GB1402574A publication Critical patent/GB1402574A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/185—Control of temperature with auxiliary non-electric power
    • G05D23/1852—Control of temperature with auxiliary non-electric power with sensing element expanding and contracting in response to change of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
    • H01H37/48—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible rigid rods or tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Temperature (AREA)

Abstract

1402574 Fluid-pressure servomotor systems NIPKIHMASH 10 Oct 1972 [13 Oct 1971] 46719/72 Heading G3P [Also in Division F2] A pneumatic controller has a valve-member 6 co-operable with head 8 of a rod-and-tube thermostat 10-12 to connect outlet connection 1 alternately to high pressure connection 3 and low pressure connection 5, the valve-member being biased by diaphragm 7 to disconnect connections 1, 3. The upper section 10 of the rod is of the same material as tube 11, but the lower section 12 is of material such as Invar (RTM) having a lesser coefficient of thermal expansion, so that the tube reacts immediately to changing temperature to establish communication between connection 1 and connection 3 or 5 and the rod reacts subsequently to reduce the extent of the communication by an amount dependent on the relative lengths of tube 11 and section 10. Rotation of cap 2 adjusts the set point due to the threaded connection with base 9.
GB4671972A 1971-10-13 1972-10-10 Pneumatic thermosensor Expired GB1402574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG1876671A BG16695A1 (en) 1971-10-13 1971-10-13

Publications (1)

Publication Number Publication Date
GB1402574A true GB1402574A (en) 1975-08-13

Family

ID=3898130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4671972A Expired GB1402574A (en) 1971-10-13 1972-10-10 Pneumatic thermosensor

Country Status (8)

Country Link
BG (1) BG16695A1 (en)
CS (1) CS180605B2 (en)
DD (1) DD101948A5 (en)
DE (1) DE2250380A1 (en)
GB (1) GB1402574A (en)
HU (1) HU171148B (en)
SE (1) SE373662B (en)
SU (1) SU518762A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0956469B1 (en) 1997-01-31 2002-12-04 Framatome ANP GmbH Passive pulse generator and method for controlling an instrument via a passive pulse generator
CN110906044B (en) * 2019-12-02 2021-07-20 中国铝业股份有限公司 Pneumatic control valve capable of decoding

Also Published As

Publication number Publication date
DD101948A5 (en) 1973-11-20
HU171148B (en) 1977-11-28
SU518762A1 (en) 1976-06-25
CS180605B2 (en) 1978-01-31
DE2250380A1 (en) 1973-04-19
BG16695A1 (en) 1973-02-15
SE373662B (en) 1975-02-10

Similar Documents

Publication Publication Date Title
GB1376642A (en) Bleed type fluid pressure control apparatus
GB1283676A (en) Apparatus and method for balancing fluid distribution systems
GB1489788A (en) Inlet orifice device for controlling the throughput flow of fluid in a pressure regulator
GB1321632A (en) Condensation nuclei meters
GB1402574A (en) Pneumatic thermosensor
CA969089A (en) Constant output pressure diaphragm-type gas valve
ES431619A1 (en) Head height control system
GB1243320A (en) Extruder pressure sensor
GB1301424A (en)
GB1376613A (en) Fluid diaphragm modulator
FR2272324A1 (en) Expansion compensator for pipes under high pressure - has sliding pipe connector element in pressure chamber
ES401880A1 (en) Differential pressure indicating apparatus
GB1459259A (en) Temperature sensitive compensating device
GB1402279A (en) Fluid signal limiting device
GB1336528A (en) Control system for regulating air flow
GB1252548A (en)
IE42541L (en) Gas-controlled heat-pipe thermostat
GB1231691A (en)
JPS5578896A (en) Membrane structure of low temperature tank
GB1180201A (en) Differential Pressure Responsive Apparatus
GB1254348A (en) Thermostatically controlled expansion valve for refrigerating equipment
CA969094A (en) Supply pressure regulator for variable flow load
BEZLADNOV et al. Experimental study of the heating of a blunted body by a plasma flow(Axisymmetric blunted body heating by high temperature plasma flow as function of geometry, pressure and stagnation enthalpy)
SU469865A1 (en) Method for the production of cold in cryogenic plants
DUCOFFE et al. Steady-state isothermal flow in a tubing system, to determine the pneumatic pressure lag

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee