EP1219831A3 - Stroke adjustment device for a variable displacement hydrostatic machine - Google Patents

Stroke adjustment device for a variable displacement hydrostatic machine Download PDF

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Publication number
EP1219831A3
EP1219831A3 EP01128167A EP01128167A EP1219831A3 EP 1219831 A3 EP1219831 A3 EP 1219831A3 EP 01128167 A EP01128167 A EP 01128167A EP 01128167 A EP01128167 A EP 01128167A EP 1219831 A3 EP1219831 A3 EP 1219831A3
Authority
EP
European Patent Office
Prior art keywords
control
control piston
adjusting
axial direction
hydrostatic machine
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
EP01128167A
Other languages
German (de)
French (fr)
Other versions
EP1219831A2 (en
EP1219831B1 (en
Inventor
Clemens Krebs
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 EP1219831A2 publication Critical patent/EP1219831A2/en
Publication of EP1219831A3 publication Critical patent/EP1219831A3/en
Application granted granted Critical
Publication of EP1219831B1 publication Critical patent/EP1219831B1/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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery
    • 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
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (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 Kraft entgegengerichtet ist. Der Steuerkolben (17) weist in axialer Richtung einen ersten Steuerkolbenteil (18) und einen zweiten Steuerkolbenteil (19) auf, die durch einen Steuerkolbenstößel (20) so miteinander verbunden sind, daß von jeweils einem Steuerkolbenteil (18, 19) auf das andere Steuerkolbenteil (19, 18) durch den Steuerkolbenstößel (20) eine Schubkraft in axialer Richtung übertragbar ist.

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) correlated force is opposite. The control piston (17) has a first control piston part (18) and a second control piston part (19) in the axial direction, which are connected to one another by a control piston tappet (20) in such a way that from one control piston part (18, 19) to the other control piston part (19, 18) a thrust in the axial direction can be transmitted by the control piston tappet (20).
Figure 00000001
EP01128167A 2000-12-20 2001-11-27 Stroke adjustment device for a variable displacement hydrostatic machine Expired - Lifetime EP1219831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000163525 DE10063525B4 (en) 2000-12-20 2000-12-20 Adjusting device for adjusting an acting on the displacement volume of a hydrostatic machine actuator piston
DE10063525 2000-12-20

Publications (3)

Publication Number Publication Date
EP1219831A2 EP1219831A2 (en) 2002-07-03
EP1219831A3 true EP1219831A3 (en) 2003-12-03
EP1219831B1 EP1219831B1 (en) 2007-06-06

Family

ID=7667954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128167A Expired - Lifetime EP1219831B1 (en) 2000-12-20 2001-11-27 Stroke adjustment device for a variable displacement hydrostatic machine

Country Status (2)

Country Link
EP (1) EP1219831B1 (en)
DE (2) DE10063525B4 (en)

Families Citing this family (19)

* 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
DE102009006288B4 (en) 2009-01-27 2019-06-19 Robert Bosch Gmbh Adjustment device of a hydrostatic machine
DE102011113637A1 (en) 2011-09-16 2013-03-21 Robert Bosch Gmbh Hydrostatically displaceable bent-axis machine, has contactless pivoting angle detection unit provided for cylinder drum and including Hall sensor fixed at housing, where cylinder drum is pivoted over at sensor
DE102012214626A1 (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
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
DE102012214622A1 (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
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
DE102012214624A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Pole tube 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
DE102012214619A1 (en) 2012-08-17 2014-02-20 Robert Bosch Gmbh Actuator and axial piston machine
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
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
DE102012021320A1 (en) 2012-10-31 2014-04-30 Robert Bosch Gmbh Adjustment device for a hydrostatic piston engine and hydrostatic piston engine with such adjustment
DE102013224657A1 (en) * 2013-12-02 2015-06-03 Robert Bosch Gmbh Hydraulic arrangement
JP6912907B2 (en) 2017-03-13 2021-08-04 Ｋｙｂ株式会社 Servo regulator
JP6913527B2 (en) 2017-06-22 2021-08-04 株式会社小松製作所 Hydraulic pumps and motors
DE102017222355A1 (en) * 2017-12-11 2019-06-13 Robert Bosch Gmbh Control device with electro-proportional control behavior and double solenoid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0525507A2 (en) * 1991-08-02 1993-02-03 Brueninghaus Hydromatik Gmbh Device for adjusting the actuator for displacement volume control of a hydrostatic machine
DE19540654C1 (en) * 1995-10-31 1996-12-19 Brueninghaus Hydromatik Gmbh Adjusting device for adjusting piston of hydrostatic engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443178C1 (en) * 1994-11-23 1996-03-28 Mannesmann Ag Directional control slide valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0525507A2 (en) * 1991-08-02 1993-02-03 Brueninghaus Hydromatik Gmbh Device for adjusting the actuator for displacement volume control of a hydrostatic machine
DE19540654C1 (en) * 1995-10-31 1996-12-19 Brueninghaus Hydromatik Gmbh Adjusting device for adjusting piston of hydrostatic engine

Also Published As

Publication number Publication date
DE10063525A1 (en) 2002-07-04
EP1219831A2 (en) 2002-07-03
DE10063525B4 (en) 2005-07-07
EP1219831B1 (en) 2007-06-06
DE50112595D1 (en) 2007-07-19

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