EP0087794A3 - Hydraulic power unit - Google Patents

Hydraulic power unit Download PDF

Info

Publication number
EP0087794A3
EP0087794A3 EP83101948A EP83101948A EP0087794A3 EP 0087794 A3 EP0087794 A3 EP 0087794A3 EP 83101948 A EP83101948 A EP 83101948A EP 83101948 A EP83101948 A EP 83101948A EP 0087794 A3 EP0087794 A3 EP 0087794A3
Authority
EP
European Patent Office
Prior art keywords
power unit
pump
hydraulic
mouth
tank
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.)
Granted
Application number
EP83101948A
Other versions
EP0087794A2 (en
EP0087794B1 (en
Inventor
Gian Luigi Gamberini
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
Application filed by Individual filed Critical Individual
Priority to AT83101948T priority Critical patent/ATE24027T1/en
Publication of EP0087794A2 publication Critical patent/EP0087794A2/en
Publication of EP0087794A3 publication Critical patent/EP0087794A3/en
Application granted granted Critical
Publication of EP0087794B1 publication Critical patent/EP0087794B1/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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F15B7/006—Rotary pump input

Abstract

In order to obtain a hydraulic power unit of small dimensions and simple construction, particularly adapted for double-acting hydraulic actuators, the pump (A) of the power unit is constituted by a reversible pump, activated, for example, by a reversible electric motor, while the two mouths (B, B min ) of the pump, each of which can operate alternately as a suction mouth and as a delivery mouth, are each connected or connectible, possibly by means of a hydraulic distributor (R), at one side to conduits (C, C min or C sec , C''') for connection to the user and at the other side to the tank (H) for the hydraulic liquid either by means of associated unidirectional valves (F, F min ) opening in the direction of the flow from the tank (H) to the respective mouth (B, B min ), or - parallelly with said unidirectional valves (F, F min ) - by means of associated automatic pressure relief valves (L, L min ).
EP83101948A 1982-03-02 1983-02-28 Hydraulic power unit Expired EP0087794B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101948T ATE24027T1 (en) 1982-03-02 1983-02-28 HYDRAULIC SUPPLY UNIT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT03353/82A IT1156552B (en) 1982-03-02 1982-03-02 MINIATURIZED HYDRAULIC CONTROL UNIT WITH DOUBLE DIRECTION OF PUMP
IT335382 1982-03-02

Publications (3)

Publication Number Publication Date
EP0087794A2 EP0087794A2 (en) 1983-09-07
EP0087794A3 true EP0087794A3 (en) 1984-09-05
EP0087794B1 EP0087794B1 (en) 1986-12-03

Family

ID=11105531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101948A Expired EP0087794B1 (en) 1982-03-02 1983-02-28 Hydraulic power unit

Country Status (4)

Country Link
EP (1) EP0087794B1 (en)
AT (1) ATE24027T1 (en)
DE (1) DE3368096D1 (en)
IT (1) IT1156552B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239488B (en) * 1989-12-19 1993-11-03 Marinex Ind Limited Hydraulic actuator for marine drives
FR2687206B1 (en) * 1992-02-12 1995-06-16 Berruyer Jean Jacques CONTROL DEVICE FOR VALVES.
NL9401692A (en) * 1994-10-13 1996-05-01 Applied Power Inc Hydraulic operating device and gearbox provided with such an operating device.
US5778671A (en) * 1996-09-13 1998-07-14 Vickers, Inc. Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit
AU780051B2 (en) 1999-12-21 2005-02-24 Exxonmobil Chemical Patents Inc Adhesive alpha-olefin inter-polymers
DE102011117486A1 (en) 2011-10-26 2013-05-02 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Switching arrangement for a motor vehicle transmission

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552624A (en) * 1948-09-13 1951-05-15 Frederick W Enzenbacher Door closing apparatus, including electrically driven gear pump and oscillating vanemotor hydraulic transmission
FR2009929A1 (en) * 1968-05-21 1970-02-13 Bbc Brown Boveri & Cie HYDROELECTRIC CONTROL DEVICE
FR2374543A1 (en) * 1976-12-14 1978-07-13 Bosch Gmbh Robert Mirror remote control for vehicle - has small motor-driven oil pump discharging into optional side of actuating piston containing cylinder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552624A (en) * 1948-09-13 1951-05-15 Frederick W Enzenbacher Door closing apparatus, including electrically driven gear pump and oscillating vanemotor hydraulic transmission
FR2009929A1 (en) * 1968-05-21 1970-02-13 Bbc Brown Boveri & Cie HYDROELECTRIC CONTROL DEVICE
FR2374543A1 (en) * 1976-12-14 1978-07-13 Bosch Gmbh Robert Mirror remote control for vehicle - has small motor-driven oil pump discharging into optional side of actuating piston containing cylinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AUTOMATION, vol. 13, no. 2, February 1966, pages 102-104, Cleveland, Ohio, US *

Also Published As

Publication number Publication date
DE3368096D1 (en) 1987-01-15
IT1156552B (en) 1987-02-04
EP0087794A2 (en) 1983-09-07
IT8203353A0 (en) 1982-03-02
EP0087794B1 (en) 1986-12-03
ATE24027T1 (en) 1986-12-15

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