EP2674622A3 - Hydraulic pump with axial pistons which can operate in both directions - Google Patents

Hydraulic pump with axial pistons which can operate in both directions Download PDF

Info

Publication number
EP2674622A3
EP2674622A3 EP13170973.5A EP13170973A EP2674622A3 EP 2674622 A3 EP2674622 A3 EP 2674622A3 EP 13170973 A EP13170973 A EP 13170973A EP 2674622 A3 EP2674622 A3 EP 2674622A3
Authority
EP
European Patent Office
Prior art keywords
bias
housing
directions
drive shaft
hydraulic pump
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
EP13170973.5A
Other languages
German (de)
French (fr)
Other versions
EP2674622A2 (en
EP2674622B1 (en
Inventor
Louis-Claude Porel
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.)
Hydro Leduc SAS
Original Assignee
Hydro Leduc SAS
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 Hydro Leduc SAS filed Critical Hydro Leduc SAS
Publication of EP2674622A2 publication Critical patent/EP2674622A2/en
Publication of EP2674622A3 publication Critical patent/EP2674622A3/en
Application granted granted Critical
Publication of EP2674622B1 publication Critical patent/EP2674622B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/16—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0057—Mechanical driving means therefor, e.g. cams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Pompe hydraulique tournant dans les deux sens de rotation, caractérisée par le fait qu'elle comporte un carter, un arbre d'entrainement commun monté rotatif par rapport au carter, deux plateaux biais (101,102) portés par l'arbre d'entrainement commun (100), ces deux plateaux biais (101,102) étant symétriques et opposés et comportant chacun une lunule d'alimentation , un piston creux respectif (103) prenant appui sur chaque plateau biais par l'intermédiaire d'un patin de glissement (105) et apte à coulisser dans un cylindre respectif lié au carter, la lunule du plateau biais étant à chaque fois disposée de manière à passer sur le piston creux pendant une phase d'aspiration du piston creux, chaque cylindre étant muni d'un clapet anti-retour (108) du côté refoulement; de telle sorte que seul un des deux plateaux biais fournisse un débit lorsque l'arbre d'entrainement (100) tourne dans un sens, l'autre plateau biais fournissant un débit lorsque l'arbre (100) tourne dans l'autre sens.

Figure imgaf001
Hydraulic pump rotating in both directions of rotation, characterized in that it comprises a housing, a common drive shaft rotatably mounted relative to the housing, two bias plates (101, 102) carried by the common drive shaft ( 100), these two bias plates (101, 102) being symmetrical and opposite and each having a feeding lunule, a respective hollow piston (103) bearing on each bias plate by means of a sliding pad (105) and adapted to slide in a respective cylinder connected to the housing, the lunette of the bias plate being each arranged so as to pass over the hollow piston during a suction phase of the hollow piston, each cylinder being provided with a non-return valve (108) on the discharge side; so that only one of the two bias plates provides a flow when the drive shaft (100) rotates in one direction, the other bias plate providing a flow when the shaft (100) rotates in the other direction.
Figure imgaf001
EP13170973.5A 2012-06-14 2013-06-07 Hydraulic pump with axial pistons which can operate in both directions Not-in-force EP2674622B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1255552A FR2992034B1 (en) 2012-06-14 2012-06-14 HYDRAULIC PUMP WITH AXIAL PISTONS OPERATING IN BOTH SENSES

Publications (3)

Publication Number Publication Date
EP2674622A2 EP2674622A2 (en) 2013-12-18
EP2674622A3 true EP2674622A3 (en) 2014-01-15
EP2674622B1 EP2674622B1 (en) 2015-09-30

Family

ID=46754660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170973.5A Not-in-force EP2674622B1 (en) 2012-06-14 2013-06-07 Hydraulic pump with axial pistons which can operate in both directions

Country Status (3)

Country Link
US (1) US20130336815A1 (en)
EP (1) EP2674622B1 (en)
FR (1) FR2992034B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012181A1 (en) * 2013-10-22 2015-04-24 Hydro Leduc HYDRAULIC PISTON PUMP WITH BI-DIRECTIONAL ICE DISTRIBUTION
CN103967731B (en) * 2014-05-09 2016-02-24 西安交通大学 A kind of end cam drive-type axial piston pump adopting flow ring to join oil
CA3165638C (en) * 2020-01-23 2023-02-28 Simon Oman Submersible pump assembly and method for use of same
FR3129137B1 (en) 2021-11-12 2023-10-06 Safran Aircraft Engines Reversible hydraulic pump for propeller pitch timing, hydraulic system, turboprop and associated aircraft

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545929A (en) * 1949-03-31 1951-03-20 Acrotorque Co Pump
FR1162272A (en) * 1956-10-31 1958-09-10 Piston pump
GB851701A (en) * 1955-07-12 1960-10-19 New Patents Ltd Hydraulic pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040057836A1 (en) * 2002-09-25 2004-03-25 Caterpillar Inc. Hydraulic pump circuit
GB2454908B (en) * 2007-11-23 2012-04-11 Schlumberger Holdings Hydraulic manifold pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545929A (en) * 1949-03-31 1951-03-20 Acrotorque Co Pump
GB851701A (en) * 1955-07-12 1960-10-19 New Patents Ltd Hydraulic pump
FR1162272A (en) * 1956-10-31 1958-09-10 Piston pump

Also Published As

Publication number Publication date
EP2674622A2 (en) 2013-12-18
US20130336815A1 (en) 2013-12-19
EP2674622B1 (en) 2015-09-30
FR2992034B1 (en) 2014-07-18
FR2992034A1 (en) 2013-12-20

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