DE19741206A1 - Hydrostatisches Antriebssystem für einen im offenen Kreislauf betriebenen Verbraucher - Google Patents
Hydrostatisches Antriebssystem für einen im offenen Kreislauf betriebenen VerbraucherInfo
- Publication number
- DE19741206A1 DE19741206A1 DE19741206A DE19741206A DE19741206A1 DE 19741206 A1 DE19741206 A1 DE 19741206A1 DE 19741206 A DE19741206 A DE 19741206A DE 19741206 A DE19741206 A DE 19741206A DE 19741206 A1 DE19741206 A1 DE 19741206A1
- Authority
- DE
- Germany
- Prior art keywords
- control
- valve
- pressure
- brake valve
- line
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4157—Control of braking, e.g. preventing pump over-speeding when motor acts as a pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
- B60T10/04—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrostatic brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
- F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
- F16H61/4131—Fluid exchange by aspiration from reservoirs, e.g. sump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4148—Open loop circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8609—Control during or prevention of abnormal conditions the abnormal condition being cavitation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Fluid-Pressure Circuits (AREA)
Description
Bei einer Beaufschlagung der Steuerdruckleitung 30a mit einem Steuerdruck X baut sich ein Druck im Steuerdruckraum 20 des Steuer-Bremsventils 5a und im Steuerdruckraum 21 des Steuer-Bremsventils Sb. Der Steuerdruckraum 21 des Steuer-Bremsventils 5a und der Steuerdruckraum 20 des Steuer-Bremsventils 5b sind über die Drosselrückschlagventile 51a und 40b druckentlastet, wodurch sich ab einem bestimmten Druckwert die Schieberkolben 60, 70 des Steuer-Bremsventils 5a und 5b entgegen der Kraft der Federn nach in der Figur rechts bewegen. Das Steuer-Bremsventil 5a gibt somit die Verbindung des an den Pumpenkanal P angeschlossenen Ringkanal 111 mit dem Schieberinneraum 330a frei, wodurch die Druckwaage 320a ausgelenkt wird und Druckmittel über den Ringkanal 112 zur Förderdruckleitung 8a strömt. Der Lastdruck des Verbrauchers wird an der Druckwaage 320a erfaßt und in den mit der Lastdruckerfassungsleitung in Verbindung stehenden Ringkanal 121 sowie den Federraum der Druckwaage 320a geleitet. Das Steuer-Bremsventil 5b öffnet die Verbindung des an die Förderdruckleitung 8b angeschlossenen Ringkanals 115 mit dem Schieberinneraum 330b. Die Druckwaage 320b wird dadurch nach in der Figur rechts ausgelenkt, wodurch Druckmittel von der Förderleitung 8b zu dem mit dem Tankkanal T in Verbindung stehenden Ringkanal 117 strömt. Der Federraum der Druckwaage 320b ist hierbei tankentlastet, wodurch die Druckwaage 320b als Rückschlagventil arbeitet. Das Ventil 300b sowie das Ventil 310b werden durch den an der zulaufseitigen Förderleitung 8a anstehenden Hochdruck in die Schließstellung beaufschlagt, um zu verhindern, daß Druckmittel von der zulaufseitigen Förderleitung 8a zur ablaufseitigen Förderleitung 8b strömt.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19741206.8A DE19741206B4 (de) | 1997-01-07 | 1997-09-18 | Hydrostatisches Antriebssystem für einen im offenen Kreislauf betriebenen Verbraucher |
JP00060898A JP4030639B2 (ja) | 1997-01-07 | 1998-01-06 | 開放回路において運転される消費機のためのハイドロスタティック式の駆動系 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19700275 | 1997-01-07 | ||
DE19700275.7 | 1997-01-07 | ||
DE19741206.8A DE19741206B4 (de) | 1997-01-07 | 1997-09-18 | Hydrostatisches Antriebssystem für einen im offenen Kreislauf betriebenen Verbraucher |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19741206A1 true DE19741206A1 (de) | 1998-07-09 |
DE19741206B4 DE19741206B4 (de) | 2014-03-06 |
Family
ID=7816901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19741206.8A Expired - Fee Related DE19741206B4 (de) | 1997-01-07 | 1997-09-18 | Hydrostatisches Antriebssystem für einen im offenen Kreislauf betriebenen Verbraucher |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19741206B4 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1279870A1 (de) * | 2001-07-24 | 2003-01-29 | Bosch Rexroth AG | Ventilanordnung |
DE102010051690A1 (de) * | 2010-11-17 | 2012-05-24 | Hydac Filtertechnik Gmbh | Hydraulische Ventilvorrichtung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2575480A (en) * | 2018-07-11 | 2020-01-15 | Parker Hannifin Emea Sarl | A control valve assembly for a load handling vehicle |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4119333C2 (de) * | 1991-06-12 | 2002-06-06 | Linde Ag | Hydrostatischer Antrieb mit einem im offenen Kreislauf angeordneten Hydromotor |
DE4235698C2 (de) * | 1992-05-22 | 2001-02-15 | Linde Ag | Hydrostatisches Antriebssystem |
-
1997
- 1997-09-18 DE DE19741206.8A patent/DE19741206B4/de not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1279870A1 (de) * | 2001-07-24 | 2003-01-29 | Bosch Rexroth AG | Ventilanordnung |
DE102010051690A1 (de) * | 2010-11-17 | 2012-05-24 | Hydac Filtertechnik Gmbh | Hydraulische Ventilvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE19741206B4 (de) | 2014-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: LINDE MATERIAL HANDLING GMBH & CO. KG, 63743 A, DE |
|
8127 | New person/name/address of the applicant |
Owner name: LINDE MATERIAL HANDLING GMBH, 63743 ASCHAFFENB, DE |
|
8125 | Change of the main classification |
Ipc: F16H 61/40 AFI20051017BHDE |
|
R082 | Change of representative |
Representative=s name: GEIRHOS & WALLER PATENT- UND RECHTSANWAELTE, DE |
|
R081 | Change of applicant/patentee |
Owner name: LINDE HYDRAULICS GMBH & CO. KG, DE Free format text: FORMER OWNER: LINDE MATERIAL HANDLING GMBH, 63743 ASCHAFFENBURG, DE Effective date: 20130828 |
|
R082 | Change of representative |
Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE Effective date: 20130828 Representative=s name: GEIRHOS & WALLER PATENT- UND RECHTSANWAELTE, DE Effective date: 20130828 |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R020 | Patent grant now final |
Effective date: 20141209 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R082 | Change of representative |
Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE |
|
R082 | Change of representative |
Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE |