EP0168302A1 - Einrichtung um einen drehenden Zylinderblock einer hydraulischen Pumpe oder eines Motors anzutreiben - Google Patents

Einrichtung um einen drehenden Zylinderblock einer hydraulischen Pumpe oder eines Motors anzutreiben Download PDF

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Publication number
EP0168302A1
EP0168302A1 EP85401204A EP85401204A EP0168302A1 EP 0168302 A1 EP0168302 A1 EP 0168302A1 EP 85401204 A EP85401204 A EP 85401204A EP 85401204 A EP85401204 A EP 85401204A EP 0168302 A1 EP0168302 A1 EP 0168302A1
Authority
EP
European Patent Office
Prior art keywords
cylinder block
pistons
control shaft
impeller plate
rotation
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
EP85401204A
Other languages
English (en)
French (fr)
Other versions
EP0168302B1 (de
Inventor
Henri Poletti
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of EP0168302A1 publication Critical patent/EP0168302A1/de
Application granted granted Critical
Publication of EP0168302B1 publication Critical patent/EP0168302B1/de
Expired legal-status Critical Current

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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
    • 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
    • F04B1/20—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 rotary cylinder block
    • F04B1/2092—Means for connecting rotating cylinder barrels and rotating inclined swash plates

Definitions

  • the invention relates to a device for driving a rotary cylinder block of a pump or hydraulic motor whose axis is inclined at a fixed or adjustable angle relative to the axis of rotation of the control shaft and in in which the transmission of the torque from the control shaft to the cylinder block (pump) and from the cylinder block to the control shaft (engine) is effected by pistons mounted at articulation by means of ball joints of connection on an inclined plate integral in rotation with the control shaft.
  • the invention relates to a constant velocity drive device for the cylinder block of a pump or a hydraulic motor of a simplified design ensuring high speeds.
  • the invention also relates to a device for driving the cylinder block by means of the articulation ball joints of the pistons on the inclined plate.
  • Another object of the invention is a cylinder block rotating at high speed provided with constant velocity drive means.
  • the face of the cylinder block facing the impeller plate carries diametrically opposite projections located at the entry of the bores of the cylinder block which have a concave surface in contact with that of the ball joints connecting the pistons with the plate. inclined.
  • the cylinder block thus produced partly covers by its projections the ball joints connecting the pistons with the inclined plate and is driven by these same ball joints regardless of its operating inclination angle R.
  • the hydraulic machine (pump or motor) shown in FIG. 1 has a control shaft 1, housed in a casing 2 by means of a bearing 3 and carries an impeller plate 4 which is integral therewith.
  • the pistons 5 in the number of seven are articulated on the plate 4 by means of connecting ball joints 6.
  • the pistons 5 are mounted with axial mobility in bores 7 of the cylinder block 8 rotated by the control shaft 1 and through the impeller plate 4.
  • the axis of rotation of the cylinder block is inclined by a fixed or variable angle ⁇ from C to 30 ° relative to the axis XX 'of the shaft 1.
  • Each of the pistons 5 is mounted with articulation by means of of its connecting ball 6 during the new rotation of the plate 4 as is well known.
  • the face 8a of the cylinder block 8, which faces the impeller plate 4 carries drive projections 10 diametrically oppc located at the entrance to each of the holes of the bores 7.
  • the projections such as 10 better shown in Figure 2 have a concave surface 11 in contact with the corresponding surface of the ball 6 in order to achieve a means of driving the simple and original cylinder block while the impeller plate 4 has diametrically opposed milling at the edge of each ball joint to facilitate contacting of the projections 10 with the corresponding ball 6.
  • each of the pistons successively occupies a position of maximum insertion in its bore or bottom dead center position in which the cylinder block is in contact with all of the surfaces of the projections 10 corresponding to the 'bore of this piston, with the ball 6 of the same piston.
  • the drive mode of the cylinder block according to the invention allows the removal of the convention drive rod nelle and that all of the projections 10 ensure the constant velocity drive of the cylinder block regardless of its inclination.
  • the surface of the projections can be obtained by local deformation of the cylinder block before any surface treatment and can be produced from a surface which can be machined by conventional methods, reported in the form of a cup by any known connection means on the face 8a. of the cylinder block.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP85401204A 1984-06-22 1985-06-18 Einrichtung um einen drehenden Zylinderblock einer hydraulischen Pumpe oder eines Motors anzutreiben Expired EP0168302B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8409842 1984-06-22
FR8409842A FR2566468B1 (fr) 1984-06-22 1984-06-22 Dispositif d'entrainement d'un bloc-cylindres tournant de pompe ou de moteur hydraulique

Publications (2)

Publication Number Publication Date
EP0168302A1 true EP0168302A1 (de) 1986-01-15
EP0168302B1 EP0168302B1 (de) 1988-07-13

Family

ID=9305328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401204A Expired EP0168302B1 (de) 1984-06-22 1985-06-18 Einrichtung um einen drehenden Zylinderblock einer hydraulischen Pumpe oder eines Motors anzutreiben

Country Status (4)

Country Link
US (1) US4593604A (de)
EP (1) EP0168302B1 (de)
DE (1) DE3563771D1 (de)
FR (1) FR2566468B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10066008B4 (de) * 2000-09-11 2004-04-22 Sauer-Danfoss (Neumünster) GmbH & Co OHG Schrägachsenverstelleinheit mit Kühlung durch einen Ölmassenstrom
US20090290996A1 (en) * 2005-11-24 2009-11-26 Komatsu Ltd Bent Axis Type Variable Displacement Pump/Motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188965A (en) * 1963-07-17 1965-06-15 Borg Warner Pump with pressure actuated reservoir
DE3025593A1 (de) * 1980-07-05 1982-02-11 Breinlich, Richard, Dr., 7120 Bietigheim-Bissingen Axialkolbenaggregat

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1284995A (en) * 1969-01-29 1972-08-09 Renault Improvements in swash-plate type variable-capacity hydraulic motors and pumps
GB1335666A (en) * 1970-03-31 1973-10-31 Lucas Industries Ltd Hydraulic wheel motor unit
US4037523A (en) * 1974-11-29 1977-07-26 Karl Eickmann Application of an entering or deep-diving piston shoe with a central radial support member and means for securing the same in fluid handling radial piston devices
DE2619005A1 (de) * 1976-04-29 1977-11-10 Linde Ag Axialkolbenmaschine
DE3125264A1 (de) * 1981-06-26 1983-01-13 Hydromatik Gmbh, 7900 Ulm Schraegachsen-axialkolbenmaschine mit einer mitnahmeplatte fuer die zylindertrommel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188965A (en) * 1963-07-17 1965-06-15 Borg Warner Pump with pressure actuated reservoir
DE3025593A1 (de) * 1980-07-05 1982-02-11 Breinlich, Richard, Dr., 7120 Bietigheim-Bissingen Axialkolbenaggregat

Also Published As

Publication number Publication date
DE3563771D1 (en) 1988-08-18
EP0168302B1 (de) 1988-07-13
FR2566468A1 (fr) 1985-12-27
FR2566468B1 (fr) 1986-10-03
US4593604A (en) 1986-06-10

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