GB1470818A - Hydraulic actuator - Google Patents

Hydraulic actuator

Info

Publication number
GB1470818A
GB1470818A GB2805474A GB2805474A GB1470818A GB 1470818 A GB1470818 A GB 1470818A GB 2805474 A GB2805474 A GB 2805474A GB 2805474 A GB2805474 A GB 2805474A GB 1470818 A GB1470818 A GB 1470818A
Authority
GB
United Kingdom
Prior art keywords
spring
spool
pilot spool
june
pilot
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
GB2805474A
Other languages
English (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.)
BERINGER HYDRAULIK GmbH
Original Assignee
BERINGER HYDRAULIK GmbH
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 BERINGER HYDRAULIK GmbH filed Critical BERINGER HYDRAULIK GmbH
Publication of GB1470818A publication Critical patent/GB1470818A/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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • 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
    • F15B13/0436—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 of the steerable jet type
    • 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
    • F15B13/16—Special measures for feedback, e.g. by a follow-up device

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
GB2805474A 1973-06-26 1974-06-25 Hydraulic actuator Expired GB1470818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH928673A CH556974A (de) 1973-06-26 1973-06-26 Hydraulisches betaetigungsorgan mit vorsteuerventil.

Publications (1)

Publication Number Publication Date
GB1470818A true GB1470818A (en) 1977-04-21

Family

ID=4350337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2805474A Expired GB1470818A (en) 1973-06-26 1974-06-25 Hydraulic actuator

Country Status (8)

Country Link
AT (1) AT334704B (xx)
CH (1) CH556974A (xx)
DE (1) DE2428287C2 (xx)
FR (1) FR2235300B1 (xx)
GB (1) GB1470818A (xx)
IT (1) IT1015344B (xx)
NL (1) NL7407938A (xx)
SE (1) SE410031B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535966A (en) * 1981-09-26 1985-08-20 Barmag Barmer Maschinenfabrik Aktiengesellschaft Throttle valve

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020918A1 (de) * 1980-06-03 1981-12-10 Backe, Wolfgang, Prof.Dr.-Ing., 5100 Aachen Vorgesteuerte vorrichtung zur lastunabhaengigen volumenstromregelung
DE3234988A1 (de) * 1981-09-26 1983-04-14 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Elektro-hydraulisch vorgesteuertes drosselventil
DE3690051C1 (de) * 1985-02-23 1997-09-18 Barmag Barmer Maschf Proportionalventil mit einem einstellbaren Drosselventil zwischen Pumpe und Last sowie einer Druckwaage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1334999A (fr) * 1962-06-07 1963-08-16 Rech Etudes Prod Dispositif de servo-commande hydraulique et son application à une commande de direction d'un avion
US3339572A (en) 1965-01-25 1967-09-05 Carroll G Gordon Electro-hydraulic servo valve
US3464318A (en) 1966-06-03 1969-09-02 Moog Inc Servomechanism providing static load error washout

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535966A (en) * 1981-09-26 1985-08-20 Barmag Barmer Maschinenfabrik Aktiengesellschaft Throttle valve

Also Published As

Publication number Publication date
NL7407938A (xx) 1974-12-30
AT334704B (de) 1976-02-10
CH556974A (de) 1974-12-13
DE2428287A1 (de) 1975-01-16
FR2235300A1 (xx) 1975-01-24
ATA499174A (de) 1976-05-15
DE2428287C2 (de) 1986-06-12
SE410031B (sv) 1979-09-17
IT1015344B (it) 1977-05-10
FR2235300B1 (xx) 1979-04-20
SE7408073L (xx) 1974-12-27

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Legal Events

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