EP1217209A3 - Adjustment device for a variable displacement hydrostatic machine - Google Patents

Adjustment device for a variable displacement hydrostatic machine Download PDF

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Publication number
EP1217209A3
EP1217209A3 EP01128052A EP01128052A EP1217209A3 EP 1217209 A3 EP1217209 A3 EP 1217209A3 EP 01128052 A EP01128052 A EP 01128052A EP 01128052 A EP01128052 A EP 01128052A EP 1217209 A3 EP1217209 A3 EP 1217209A3
Authority
EP
European Patent Office
Prior art keywords
control
piston
adjusting
hydrostatic machine
spring
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
EP01128052A
Other languages
German (de)
French (fr)
Other versions
EP1217209B1 (en
EP1217209A2 (en
Inventor
Clemens Krebs
Edmund Bernhard
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.)
Brueninghaus Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik GmbH
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 Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1217209A2 publication Critical patent/EP1217209A2/en
Publication of EP1217209A3 publication Critical patent/EP1217209A3/en
Application granted granted Critical
Publication of EP1217209B1 publication Critical patent/EP1217209B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block

Landscapes

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

Abstract

Eine Verstellvorrichtung zum Verstellen eines zwischen zwei Stelldruckkammern angeordneten auf das Verdrängungsvolumen einer hydrostatischen Maschine einwirkenden Stellkolbens (3), welcher aus einer durch die Kraft zumindest einer Rückstellfeder (8a, 8b) vorgegebenen Neutralstellung zwischen zwei Endlagen bewegbar ist, umfaßt ein zur Regelung der Stelldrücke in den Stelldruckkammern (7a, 7b) vorgesehenes Steuerventil (2), mit einem Steuerkolben (17), der durch von Steuereinrichtungen (38) erzeugte Steuerkräfte in axialer Richtung aus einer Neutralstellung beidseitig auslenkbar ist, wobei den Steuerkräften jeweils eine mit der Auslenkung des Stellkolbens (3) korrelierte Gegenkraft entgegengerichtet ist. Die Auslenkung des Stellkolbens (3) wird über einen starr mit dem Stellkolben (3) verbundenen Rückführhebel (4) als lineare Bewegung auf eine Federhülse (43) übertragen, die über eine Steuerfeder (45) in Wirkverbindung steht.

Figure 00000001
An adjusting device for adjusting an adjusting piston (3) which is arranged between two signal pressure chambers and which acts on the displacement volume of a hydrostatic machine and which can be moved between two end positions from a neutral position predetermined by the force of at least one return spring (8a, 8b), includes a for regulating the adjusting pressures in Control valve (2) provided to the control pressure chambers (7a, 7b), with a control piston (17) which can be deflected in the axial direction from a neutral position by control forces generated by control devices (38), the control forces each having a deflection of the control piston ( 3) counter-correlated counterforce. The deflection of the actuating piston (3) is transmitted via a return lever (4) rigidly connected to the actuating piston (3) as a linear movement to a spring sleeve (43) which is operatively connected via a control spring (45).
Figure 00000001
EP01128052A 2000-12-20 2001-11-26 Adjustment device for a variable displacement hydrostatic machine Expired - Lifetime EP1217209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000163526 DE10063526C1 (en) 2000-12-20 2000-12-20 Adjusting device for adjusting an adjusting piston acting on the displacement volume of a hydrostatic machine
DE10063526 2000-12-20

Publications (3)

Publication Number Publication Date
EP1217209A2 EP1217209A2 (en) 2002-06-26
EP1217209A3 true EP1217209A3 (en) 2003-12-03
EP1217209B1 EP1217209B1 (en) 2007-06-06

Family

ID=7667955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128052A Expired - Lifetime EP1217209B1 (en) 2000-12-20 2001-11-26 Adjustment device for a variable displacement hydrostatic machine

Country Status (2)

Country Link
EP (1) EP1217209B1 (en)
DE (2) DE10063526C1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037619B4 (en) * 2005-08-09 2020-07-09 Brueninghaus Hydromatik Gmbh Control valve unit with change stop
DE102011115667A1 (en) * 2011-09-29 2013-04-04 Robert Bosch Gmbh Control device and method for mounting a control device
DE102011117543A1 (en) 2011-11-03 2013-05-08 Robert Bosch Gmbh Axial piston machine e.g. pump for use in swash plate construction, has return spring that is arranged in cylinders and displaced in circumferential direction to apply return force to valve slide according to tilt angle
DE102012015503A1 (en) * 2012-08-04 2014-02-06 Robert Bosch Gmbh Hydrostatic axial piston machine
DE102012214373A1 (en) 2012-08-13 2014-05-15 Robert Bosch Gmbh Hydrostatic axial piston machine for use as pump or motor in hybrid vehicle, comprises adjustment unit for swiveling cradle, and counter piston enforcing discharge fluid path that opens offset towards drive shaft against counter piston axis
DE102012214696A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Armature for actuator device used for axial piston machine mounted in hydraulic hybrid power train of e.g. passenger car, has main portion which is encapsulated with plastic material which is constantly expanded along radial direction
DE102012214621A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Built pole pipe for actuator device for e.g. driving fluid pump, has inserts that are totally or partly molded by nonmagnetic plastic material and extending radially inward over entire or large part of longitudinal extension of pipe
DE102012214626A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Actuator and axial piston machine
DE102012214628A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Armature for actuator device, has slot that is arranged in longitudinal direction in order to divide armature into two equal portions that are connected using connecting bar
DE102012214698A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Pole pipe for actuator device used in axial piston machine for mobile hydraulic drive in hydraulic hybrid power train of hybrid vehicle e.g. passenger car, has main portion that is radially and inwardly provided with coating portion
DE102012214624A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Pole tube for an actuator device
DE102012214622A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Actuator and axial piston machine
DE102012214619A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Actuator and axial piston machine
DE102012214655A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Anchor for an actuator device
DE102012214620A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Pole pipe for actuator device that is utilized for e.g. driving fluid pump in robotics field, has shaped-fixed case radially inwardly limiting pipe, and different functional parts threaded-up on case for displaying additional functions
DE102012214618A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Coil for actuator device for use as drive device for driving fluid machine e.g. fluid pump, has coil main portion that is provided with magnet, and whose winding end is surrounded by elastic sleeve made of resilient plastic material
DE102013205455A1 (en) 2013-03-27 2014-10-02 Robert Bosch Gmbh Method for detecting the position of at least one anchor
DE102020201171A1 (en) 2020-01-31 2021-08-05 Inline Hydraulik Gmbh Adjusting device for a hydraulic machine, hydraulic machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429225A (en) * 1966-06-09 1969-02-25 Abex Corp Electrohydraulic displacement control with mechanical feedback
DE2913534A1 (en) * 1979-04-04 1980-10-16 Bosch Gmbh Robert Flow and pressure control for variable delivery pump - has flow control valve operated by throttle differential and limited pilot pressure
US4518321A (en) * 1982-09-02 1985-05-21 Hydromatik Gmbh Power regulation device for a hydraulic pump
JPS61167183A (en) * 1985-01-18 1986-07-28 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai Control device for hydraulic pump in closed hydraulic circuit
DE19540654C1 (en) * 1995-10-31 1996-12-19 Brueninghaus Hydromatik Gmbh Adjusting device for adjusting piston of hydrostatic engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429225A (en) * 1966-06-09 1969-02-25 Abex Corp Electrohydraulic displacement control with mechanical feedback
DE2913534A1 (en) * 1979-04-04 1980-10-16 Bosch Gmbh Robert Flow and pressure control for variable delivery pump - has flow control valve operated by throttle differential and limited pilot pressure
US4518321A (en) * 1982-09-02 1985-05-21 Hydromatik Gmbh Power regulation device for a hydraulic pump
JPS61167183A (en) * 1985-01-18 1986-07-28 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai Control device for hydraulic pump in closed hydraulic circuit
DE19540654C1 (en) * 1995-10-31 1996-12-19 Brueninghaus Hydromatik Gmbh Adjusting device for adjusting piston of hydrostatic engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 375 (M - 545) 13 December 1986 (1986-12-13) *

Also Published As

Publication number Publication date
EP1217209B1 (en) 2007-06-06
EP1217209A2 (en) 2002-06-26
DE50112594D1 (en) 2007-07-19
DE10063526C1 (en) 2002-07-11

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