EP2674622B1 - Hydraulische Pumpe mit Axialkolben, die in beide Richtungen funktionieren - Google Patents

Hydraulische Pumpe mit Axialkolben, die in beide Richtungen funktionieren Download PDF

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Publication number
EP2674622B1
EP2674622B1 EP13170973.5A EP13170973A EP2674622B1 EP 2674622 B1 EP2674622 B1 EP 2674622B1 EP 13170973 A EP13170973 A EP 13170973A EP 2674622 B1 EP2674622 B1 EP 2674622B1
Authority
EP
European Patent Office
Prior art keywords
swashplates
hydraulic pump
swashplate
shaft
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.)
Not-in-force
Application number
EP13170973.5A
Other languages
English (en)
French (fr)
Other versions
EP2674622A2 (de
EP2674622A3 (de
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/de
Publication of EP2674622A3 publication Critical patent/EP2674622A3/de
Application granted granted Critical
Publication of EP2674622B1 publication Critical patent/EP2674622B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the present invention relates to a hydraulic pump with axial pistons, in particular of low or very low displacement, which can operate in both directions of rotation so as to actuate a hydraulic receiver in one direction or the other.
  • Hydraulic pumps inclined plate, or bias plate, operating axial pistons have been known for a long time.
  • the present invention relates to an axial piston pump which can provide a flow in both directions of rotation and is suitable for very low the displacement of this pump may be of the order of 40 mm 3 and even less.
  • the pump is characterized in that it comprises a housing, a common drive shaft rotatably mounted relative to the housing, two bias plates carried by the common drive shaft, these two bias plates being symmetrical and opposite and each comprising a feed lunule, a respective hollow piston bearing on each bias plate by means of a sliding pad and slidable in a respective cylinder connected to the housing, the lunette of the bias plate being at each disposed so as to pass over the hollow piston during a suction phase of the hollow piston, each cylinder being provided with a nonreturn valve on the discharge side; so that only one of the two bias plates provides a flow when the drive shaft rotates in one direction, the other bias plate providing a flow when the shaft rotates in the other direction, thereby achieving a pump of very small displacement delivering a flow on one of the two discharge ports of the pump and that depending on the direction of rotation of the pump.
  • the pump has two separate discharge ports, one for each flow, and a check valve by pump piston.
  • the hydraulic pump comprises two discharge ports, one discharging the liquid pressurized by one of the bias plates, the other pushing the liquid pressurized by the other bias plate; the supply of liquid being done either by a supply port opening into the volume where oscillates one or the other bias plates, or through the bearing bearing said plates bias.
  • the drive shaft 100 carries two bias plates 101 and 102 which are symmetrical and opposite slopes, each having a single lunette 106 and 107, which are in diametrically opposite positions.
  • Pistons 103 are held in abutment against bias plate 101 by springs 104 by means of sliding shoes 105.
  • pistons 103 are held in abutment against plate 102 by springs 104 and via Slip pads 105.
  • the plate 101 rotates in a chamber 112 filled with hydraulic fluid and the plate 102 rotates in a similar chamber 113.
  • the liquid discharged under pressure by the effect of the pistons actuated by the plate 101 passes through the anti-rotation valve. 108 and out through the orifice 110.
  • the liquid discharged under pressure by the effect of the plate 102 passes through the non-return valve 109 and out through the orifice 111.
  • the pump In use, the pump is intended to be immersed in a reservoir of hydraulic fluid, for example within a petroleum drill pipe.
  • the chambers 112 and 113 are filled with hydraulic fluid either by unrepresented holes in the pump housing opening into these chambers, or through the bearings carrying the shaft 100.

Landscapes

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

Claims (4)

  1. Hydraulische Pumpe, die sich in beide Richtungen dreht, umfassend ein Gehäuse, eine gemeinsame Antriebswelle, die gegenüber dem Gehäuse drehbar montiert ist, zwei Schrägscheiben (101, 102), welche von der gemeinsamen Antriebswelle (100) getragen werden, wobei diese beiden Schrägscheiben (101, 102) symmetrisch und einander gegenüberliegend sind, wobei ein jeweiliger Hohlkolben (103) an jeder Schrägscheibe abgestützt und dazu geeignet ist, sich in einem mit dem Gehäuse verbundenen jeweiligen Zylinder zu verschieben, wobei jeder Zylinder auf der Förderseite mit einer Rückschlagklappe (108) ausgestattet ist;
    dadurch gekennzeichnet, dass
    die beiden Schrägscheiben jeweils ein Zuführungsmöndchen (106, 107) aufweisen;
    die jeweiligen Hohlkolben (103) mittels eines Gleitschuhes an jeder Schrägscheibe abgestützt sind;
    das Möndchen der Schrägscheibe jeweils so angeordnet ist, dass dieses während einer Ansaugphase des Hohlkolbens über den Hohlkolben geführt wird;
    die Rückschlagklappen derartig sind, dass ausschließlich eine der beiden Schrägscheiben einen Durchfluss gewährleistet, wenn die Antriebswelle (100) sich in eine Richtung dreht, wobei die andere Schrägscheibe einen Durchfluss gewährleistet, wenn die Welle (100) sich in die andere Richtung dreht
  2. Hydraulische Pumpe gemäß Anspruch 1, umfassend zwei Förderöffnungen (110, 111), wobei eine (110) die von einer der Schrägscheiben (101) unter Druck gesetzte Flüssigkeit fördert und wobei die andere (111) die von der anderen Schrägscheibe (102) unter Druck gesetzte Flüssigkeit fördert, und dies abhängig von der Drehrichtung der Welle (100).
  3. Hydraulische Pumpe gemäß einem der Ansprüche 1 und 2, umfassend mindestens eine Zuführungsöffnung, die in mindestens eine der Kammern (112, 113) mündet, in welchen die Schrägscheiben (101, 102) schwingen.
  4. Hydraulische Pumpe gemäß einem der Ansprüche 1 und 2, wobei die Zufühnungsflüssigkeit durch das eine oder das andere der Lager durchläuft, welche die Welle (100) tragen, die die Schrägscheiben (101, 102) trägt.
EP13170973.5A 2012-06-14 2013-06-07 Hydraulische Pumpe mit Axialkolben, die in beide Richtungen funktionieren Not-in-force EP2674622B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1255552A FR2992034B1 (fr) 2012-06-14 2012-06-14 Pompe hydraulique a pistons axiaux pouvant fonctionner dans les deux sens

Publications (3)

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

Family

ID=46754660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170973.5A Not-in-force EP2674622B1 (de) 2012-06-14 2013-06-07 Hydraulische Pumpe mit Axialkolben, die in beide Richtungen funktionieren

Country Status (3)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012181A1 (fr) * 2013-10-22 2015-04-24 Hydro Leduc Pompe hydraulique a pistons a distribution par glace bi-directionnelle
CN103967731B (zh) * 2014-05-09 2016-02-24 西安交通大学 一种采用配流环配油的端面凸轮驱动式轴向柱塞泵
SI4093970T1 (sl) * 2020-01-23 2025-08-29 Hess Corporation Sklop potopne črpalke in način njene uporabe
FR3129137B1 (fr) 2021-11-12 2023-10-06 Safran Aircraft Engines Pompe hydraulique réversible pour le calage de pas d’hélice, système hydraulique, turbopropulseur et aéronef associés
CN117345574A (zh) * 2023-11-03 2024-01-05 上海交通大学 一种数字配流与调速式低速轴向柱塞泵

Family Cites Families (5)

* 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 (fr) * 1956-10-31 1958-09-10 Pompe à piston
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

Also Published As

Publication number Publication date
FR2992034B1 (fr) 2014-07-18
FR2992034A1 (fr) 2013-12-20
EP2674622A2 (de) 2013-12-18
US20130336815A1 (en) 2013-12-19
EP2674622A3 (de) 2014-01-15

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