GB1347317A - Electro hydraulic transducer - Google Patents

Electro hydraulic transducer

Info

Publication number
GB1347317A
GB1347317A GB1354171A GB1354171A GB1347317A GB 1347317 A GB1347317 A GB 1347317A GB 1354171 A GB1354171 A GB 1354171A GB 1354171 A GB1354171 A GB 1354171A GB 1347317 A GB1347317 A GB 1347317A
Authority
GB
United Kingdom
Prior art keywords
tube
lug
hydraulic
medium
restrictor
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
GB1354171A
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.)
Individual
Original Assignee
Individual
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
Priority claimed from CH682270A external-priority patent/CH523433A/en
Application filed by Individual filed Critical Individual
Publication of GB1347317A publication Critical patent/GB1347317A/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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control valves
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/042—Controlling the temperature of the fluid
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/02—Details, e.g. special constructional devices for circuits with fluid elements, such as resistances, capacitive circuit elements; devices preventing reaction coupling in composite elements ; Switch boards; Programme devices
    • F15C1/04—Means for controlling fluid streams to fluid devices, e.g. by electric signals or other signals, no mixing taking place between the signal and the flow to be controlled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0391—Affecting flow by the addition of material or energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/218—Means to regulate or vary operation of device
    • Y10T137/2191—By non-fluid energy field affecting input [e.g., transducer]
    • Y10T137/2196—Acoustical or thermal energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Resistance Heating (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Servomotors (AREA)

Abstract

1347317 Fluid regulation I J CYPHELLY 6 May 1971 [6 May 1970 30 March 1971] 13541/71 Heading G3H An electro-hydraulic transducer comprises a tube 1 having a terminal lug 4 at its low pressure end and a flange 3 soldered to its high pressure end, the lug being insulated from contacting parts. An electric current input 5 connected to the lug serves to heat the tube through which tube the hydraulic medium flows, the rate of flow of medium being governed by the supplied electric current. Such rate of flow is dependant upon the changes induced in the inherent properties of the medium by the heat supplied to it from the tube. Figs. 3-14, (not shown), depict modified forms of the tube. The transducer may be incorporated in an hydraulic bridge circuit Fig. 15, (not shown), having a trimming restrictor Fig. 16, (not shown). The restrictor takes the form of a pipe (27) arranged helically around a threaded bolt (31) extending from a base (30), the pipe resting on the base (30) and being acted upon by a washer (33) underlying a nut (32) movable along the bolt (31). Electric overloading of the tube is prevented by arranging the tube such that it bends on heating Figs. 17-19, (not shown), and eventually trips either a mechanical switch actuator or interrupts the supply of light to a photo-electric cell arranged in the supply of power to the tube.
GB1354171A 1970-05-06 1971-05-06 Electro hydraulic transducer Expired GB1347317A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH682270A CH523433A (en) 1970-05-06 1970-05-06 Electro-hydraulic converter
CH459371A CH535898A (en) 1970-05-06 1971-03-30 Electro-hydraulic converter

Publications (1)

Publication Number Publication Date
GB1347317A true GB1347317A (en) 1974-02-27

Family

ID=25695835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1354171A Expired GB1347317A (en) 1970-05-06 1971-05-06 Electro hydraulic transducer

Country Status (9)

Country Link
US (1) US3805843A (en)
JP (1) JPS5426731B1 (en)
BE (1) BE766726A (en)
CH (1) CH535898A (en)
FR (1) FR2088372B1 (en)
GB (1) GB1347317A (en)
NL (1) NL7106109A (en)
NO (1) NO138260C (en)
SE (1) SE371258B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105546164B (en) * 2016-01-07 2017-11-14 上海宝冶工程技术有限公司 A kind of high temperature corrosion-resisting medium prepares the freezing valve of purifier apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911066A (en) * 1930-05-05 1933-05-23 Doble Abner Thermostat construction
US3334641A (en) * 1964-06-26 1967-08-08 Johnson Service Co Fluid stream control apparatus
US3678243A (en) * 1969-12-27 1972-07-18 Chisso Corp Method for levelling the temperature of an electrically heated pipeline

Also Published As

Publication number Publication date
SE371258B (en) 1974-11-11
NO138260C (en) 1978-08-02
JPS5426731B1 (en) 1979-09-05
DE2119957B2 (en) 1976-12-09
FR2088372A1 (en) 1972-01-07
CH535898A (en) 1973-04-15
NO138260B (en) 1978-04-24
NL7106109A (en) 1971-11-09
US3805843A (en) 1974-04-23
BE766726A (en) 1971-10-01
DE2119957A1 (en) 1971-11-25
FR2088372B1 (en) 1974-04-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee