GB1192815A - Improved Hydraulic Actuator Unit - Google Patents

Improved Hydraulic Actuator Unit

Info

Publication number
GB1192815A
GB1192815A GB4582667A GB4582667A GB1192815A GB 1192815 A GB1192815 A GB 1192815A GB 4582667 A GB4582667 A GB 4582667A GB 4582667 A GB4582667 A GB 4582667A GB 1192815 A GB1192815 A GB 1192815A
Authority
GB
United Kingdom
Prior art keywords
pump
cooling coil
actuator unit
hydraulic actuator
oct
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
GB4582667A
Inventor
Per Fryklund
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1192815A publication Critical patent/GB1192815A/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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/18—Combined units comprising both motor and pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

1,192,815. Hydraulic actuators. ALLM€NNA SVENSKA ELEKTRISKA A.B. Oct. 6, 1967 [Oct. 19, 1966], No. 45826/67. Heading F1P. An hydraulic actuator unit comprises the assembly of a piston 5 slidable in a cylinder 4, a motor driven pump 2, a cooling coil 8 serving also as an expansion chamber and a directional control valve 12, the pump 2 being arranged to withdraw fluid from one side of the piston and deliver it to the other The directional valve 12, Fig. 2 (not shown) is arranged always to direct exhaust fluid through the cooling coil 8 without reversing the pump direction. The cooling coil 8 is helically wound and preferably of flattened cross-section. A shield 1, perforated to allow cooling air to pass therethrough, surrounds the cylinder, pump and cooling coil, but not the pump motor 3.
GB4582667A 1966-10-19 1967-10-06 Improved Hydraulic Actuator Unit Expired GB1192815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1417866A SE319387B (en) 1966-10-19 1966-10-19

Publications (1)

Publication Number Publication Date
GB1192815A true GB1192815A (en) 1970-05-20

Family

ID=20298654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4582667A Expired GB1192815A (en) 1966-10-19 1967-10-06 Improved Hydraulic Actuator Unit

Country Status (2)

Country Link
GB (1) GB1192815A (en)
SE (1) SE319387B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2212499A1 (en) * 1972-12-29 1974-07-26 Alsthom Cgee
CN102078886A (en) * 2010-11-19 2011-06-01 太原重工股份有限公司 In-mold shearing cylinder of aluminum extruder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2212499A1 (en) * 1972-12-29 1974-07-26 Alsthom Cgee
CN102078886A (en) * 2010-11-19 2011-06-01 太原重工股份有限公司 In-mold shearing cylinder of aluminum extruder
CN102078886B (en) * 2010-11-19 2012-07-11 太原重工股份有限公司 In-mold shearing cylinder of aluminum extruder

Also Published As

Publication number Publication date
SE319387B (en) 1970-01-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees