IT1156552B - MINIATURIZED HYDRAULIC CONTROL UNIT WITH DOUBLE DIRECTION OF PUMP - Google Patents
MINIATURIZED HYDRAULIC CONTROL UNIT WITH DOUBLE DIRECTION OF PUMPInfo
- Publication number
 - IT1156552B IT1156552B IT03353/82A IT335382A IT1156552B IT 1156552 B IT1156552 B IT 1156552B IT 03353/82 A IT03353/82 A IT 03353/82A IT 335382 A IT335382 A IT 335382A IT 1156552 B IT1156552 B IT 1156552B
 - Authority
 - IT
 - Italy
 - Prior art keywords
 - pump
 - hydraulic
 - control unit
 - hydraulic control
 - mouth
 - Prior art date
 
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
 
 
Landscapes
- Engineering & Computer Science (AREA)
 - Physics & Mathematics (AREA)
 - Fluid Mechanics (AREA)
 - Mechanical Engineering (AREA)
 - General Engineering & Computer Science (AREA)
 - Fluid-Pressure Circuits (AREA)
 - Braking Systems And Boosters (AREA)
 - Control Of Transmission Device (AREA)
 
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 ).
  Priority Applications (4)
| 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 | 
| EP83101948A EP0087794B1 (en) | 1982-03-02 | 1983-02-28 | Hydraulic power unit | 
| DE8383101948T DE3368096D1 (en) | 1982-03-02 | 1983-02-28 | Hydraulic power unit | 
| AT83101948T ATE24027T1 (en) | 1982-03-02 | 1983-02-28 | HYDRAULIC SUPPLY UNIT. | 
Applications Claiming Priority (1)
| 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 | 
Publications (2)
| Publication Number | Publication Date | 
|---|---|
| IT8203353A0 IT8203353A0 (en) | 1982-03-02 | 
| IT1156552B true IT1156552B (en) | 1987-02-04 | 
Family
ID=11105531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| IT03353/82A IT1156552B (en) | 1982-03-02 | 1982-03-02 | MINIATURIZED HYDRAULIC CONTROL UNIT WITH DOUBLE DIRECTION OF PUMP | 
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)
| 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 | 
| WO2001046277A2 (en) | 1999-12-22 | 2001-06-28 | Exxonmobil Chemical Patents, Inc. | Polypropylene-based adhesive compositions | 
| DE102011117486A1 (en) * | 2011-10-26 | 2013-05-02 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Switching arrangement for a motor vehicle transmission | 
Family Cites Families (3)
| 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 | 
| DE1916266A1 (en) * | 1968-05-21 | 1970-10-08 | Bbc Brown Boveri & Cie | Electrohydraulic actuator | 
| DE2656553A1 (en) * | 1976-12-14 | 1978-06-15 | Bosch Gmbh Robert | DEVICE FOR MOVING IN PARTICULAR SWIVELING CONSTRUCTION PARTS | 
- 
        1982
        
- 1982-03-02 IT IT03353/82A patent/IT1156552B/en active
 
 - 
        1983
        
- 1983-02-28 EP EP83101948A patent/EP0087794B1/en not_active Expired
 - 1983-02-28 AT AT83101948T patent/ATE24027T1/en not_active IP Right Cessation
 - 1983-02-28 DE DE8383101948T patent/DE3368096D1/en not_active Expired
 
 
Also Published As
| Publication number | Publication date | 
|---|---|
| EP0087794A3 (en) | 1984-09-05 | 
| DE3368096D1 (en) | 1987-01-15 | 
| IT8203353A0 (en) | 1982-03-02 | 
| EP0087794B1 (en) | 1986-12-03 | 
| ATE24027T1 (en) | 1986-12-15 | 
| EP0087794A2 (en) | 1983-09-07 | 
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Legal Events
| Date | Code | Title | Description | 
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 | 
             Effective date: 19940325  |