EP1219831A3 - Stroke adjustment device for a variable displacement hydrostatic machine - Google Patents
Stroke adjustment device for a variable displacement hydrostatic machine Download PDFInfo
- 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
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. 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).
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)
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 |
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 |
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 |
DE102012214622A1 (en) | 2012-08-17 | 2014-02-20 | Robert Bosch Gmbh | Actuator and axial piston machine |
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 |
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 |
DE102012214626A1 (en) | 2012-08-17 | 2014-02-20 | Robert Bosch Gmbh | Actuator and axial piston machine |
DE102012214624A1 (en) | 2012-08-17 | 2014-02-20 | Robert Bosch Gmbh | Pole tube for an actuator device |
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 |
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 |
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4443178C1 (en) * | 1994-11-23 | 1996-03-28 | Mannesmann Ag | Directional control slide valve |
-
2000
- 2000-12-20 DE DE2000163525 patent/DE10063525B4/en not_active Expired - Fee Related
-
2001
- 2001-11-27 EP EP01128167A patent/EP1219831B1/en not_active Expired - Lifetime
- 2001-11-27 DE DE50112595T patent/DE50112595D1/en not_active Expired - Lifetime
Patent Citations (3)
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 |
---|---|
DE10063525B4 (en) | 2005-07-07 |
DE50112595D1 (en) | 2007-07-19 |
EP1219831B1 (en) | 2007-06-06 |
DE10063525A1 (en) | 2002-07-04 |
EP1219831A2 (en) | 2002-07-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1219831A3 (en) | Stroke adjustment device for a variable displacement hydrostatic machine | |
DE2446963C2 (en) | Hydraulic control device | |
EP1217209A3 (en) | Adjustment device for a variable displacement hydrostatic machine | |
DE60301986T2 (en) | Electrically operated hydraulic adjusting device with position-dependent force feedback | |
DE1939293A1 (en) | Pressure regulator | |
DE2717384A1 (en) | HYDRAULICALLY ACTUATED CONTROL VALVE | |
DE102013105389A1 (en) | Changeover valve and internal combustion engine with such a changeover valve | |
DE10023981A1 (en) | Piezoelectric valve for hydraulic control system of machine, has spring compressed to allow flow of fluid through second passage and second chamber in order to form second flow path | |
EP1504191B1 (en) | Regulating device for hydrostatic piston machines | |
WO2010086134A1 (en) | Adjustment device of a hydrostatic machine | |
DE19902107A1 (en) | Displacement control device for a hydraulic unit such as a hydrostatic transmission of skid-steer loader | |
DE3811312A1 (en) | Double-acting working cylinder | |
DE60147T1 (en) | STEERING SYSTEM AND COMPENSATING VALVE. | |
DE102005048950B3 (en) | Control valve for clutch actuating device of motor vehicle, has valve body moved to one switching position by valve rod that is centered in initial position, where spring and magnetic forces indirectly act on rod that is pre-stressed | |
DE10225691A1 (en) | Control device for proportionally adjustable hydraulic pump of closed hydraulic circuit includes valve configuration with valve for each swivel direction of piston and a mechanical touch | |
DE3036700A1 (en) | Control valve plunger sealing ring - fits in groove with sloping flanks widening towards bottom | |
DE3207961A1 (en) | DEVICE FOR KEEPING THE PRODUCT OF DELIVERY PRESSURE AND DELIVERY VOLUME OF AN ADJUSTABLE PUMP | |
EP0562503B1 (en) | Pneumatic cylinder | |
DE2428287C2 (en) | Pilot operated hydraulic directional valve | |
EP0624732B1 (en) | Hydraulic control device | |
EP0897062B1 (en) | Pressure control circuit for more than one hydraulic pump with a pressure averager | |
DE3608494A1 (en) | ELECTRICALLY CONTROLLABLE ACTUATOR | |
DE102020210397B3 (en) | HYDROSTATIC SERVO UNIT | |
DE4135822A1 (en) | PIEZO CONTROLLED NOZZLE RESISTANCE FOR HYDRAULIC DEVICES, ESPECIALLY FOR PILOT TASKS FOR SERVO VALVES | |
DE4135145A1 (en) | CONTROL FOR A CYLINDER |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17P | Request for examination filed |
Effective date: 20040302 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB IT SE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT SE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20070606 |
|
REF | Corresponds to: |
Ref document number: 50112595 Country of ref document: DE Date of ref document: 20070719 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20080307 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20101130 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20101123 Year of fee payment: 10 Ref country code: SE Payment date: 20101124 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20111127 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20120731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111128 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111127 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111130 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20121123 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131127 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20210126 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 50112595 Country of ref document: DE |