EP1035458B1 - Hydraulisches Regelgerät mit Ablaufsteuerung - Google Patents
Hydraulisches Regelgerät mit Ablaufsteuerung Download PDFInfo
- Publication number
- EP1035458B1 EP1035458B1 EP19990810205 EP99810205A EP1035458B1 EP 1035458 B1 EP1035458 B1 EP 1035458B1 EP 19990810205 EP19990810205 EP 19990810205 EP 99810205 A EP99810205 A EP 99810205A EP 1035458 B1 EP1035458 B1 EP 1035458B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control
- piston
- sleeve
- meter
- feedback device
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- 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
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
-
- 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
- F15B2211/665—Methods of control using electronic components
- F15B2211/6653—Pressure control
Definitions
- the invention as set out in the claim refers to a hydraulic control device with sequence control.
- control piston guided in a control sleeve.
- the control piston is on the End, which is guided in the control sleeve, provided with control edges, which consist of one or more millings and in the middle of the piston are arranged.
- the control piston is thus in direct contact over the circumference with the control box.
- This shape of the control edges of the control piston has changed in the hydraulics have proven themselves and are used as standard practically everywhere.
- the Disadvantage of this prior art is that the control box through the Pulled friction between the control piston and the control sleeve or can be pushed. This then has a negative impact on the control quality result.
- the document WO 97/32136 also shows a relevant state of the art.
- the aim of the invention is to overcome the disadvantages mentioned above.
- the object of the invention is to provide a control piston of a control device with sequence control, which moves smoothly in the control sleeve. This is achieved according to the invention in that the control edge of the control piston is formed at the end, which is guided in the control sleeve, on the circumference towards the control sleeve by a bevel.
- the control piston in the control sleeve advantageously moves smoothly, since in the case of a discharge control there must always be a control edge opening to the control sleeve.
- the single figure shows an embodiment of a control device with Sequence control with a control piston according to the invention.
- the single figure shows a control device 1 with sequence control, as is known in its basic structure and which serves to regulate a system pressure p sys in a line 11.
- the line 11 can be connected, for example, to a valve in a power plant.
- the control device 1 consists of a housing 8 in which there is a control piston 2 with a spring 7, a control sleeve 3 and a piston 5 with a control spring 6.
- the system pressure p sys in the line 11 is regulated via the control piston 2, which is supplied with the pump pressure p p from two sides via the line 10, and a proportional valve 9.
- a corresponding pressure p sys in the line 11 moves the control sleeve 3 and thus the piston 5 as a function of the pretension of the control spring 6.
- the Control piston 2 designed according to the invention with a control edge 4, which on the control piston 2 on the circumference to the control sleeve 3 through a Bevel is formed.
- the control piston 2 is designed so that it is the same Has repression.
- the control piston 2 rubs through this arrangement Control edges not on the control sleeve 3, as there is always a control edge opening must be present between control piston 2 and control sleeve 3.
- the Control sleeve 3 are not entrained and an improved control quality is d Episode.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Description
Erfindungsgemäss wird dies dadurch erreicht, dass die Steuerkante des Steuerkolbens an dem Ende, welches in der Steuerbüchse geführt ist, am Umfang zur Steuerbüchse hin durch eine Abschrägung gebildet ist.
Vorteilhaft bewegt sich der Steuerkolben in der Steuerbüchse reibungsfrei, da bei einer Abflusssteuerung immer eine Steuerkantenöffnung zur Steuerbüchse vorhanden sein muss.
- 1
- Regelgerät mit Ablaufsteuerung
- 2
- Steuerkolben
- 3
- Steuerbüchse des Kolbens 5
- 4
- Steuerkante
- 5
- Kolben
- 6
- Steuerfeder des Kolbens 5
- 7
- Feder des Steuerkolbens 8
- 8
- Gehäuse
- 9
- Proportionalventil
- 10
- Leitung zur Pumpe
- 11
- Leitung zum System
- 12
- Ablaufleitung
- 13
- Blende zwischen Leitung 10 und 11
- pP
- Druck der Pumpe
- pSYS
- Systemdruck
- T
- Tank
Claims (1)
- Hydraulisches Regelgerät (1) mit Ablaufsteuerung, bestehend aus einem Steuerkolben (2), welche eine Steuerkante (4) aufweist, und einer Steuerbüchse (3), dadurch gekennzeichnet, dass die Steuerkante (4) des Steuerkolbens (2) an dem Ende, welches in der Steuerbüchse (3) geführt ist, am Umfang zur Steuerbüchse (3) hin durch eine Abschrägung gebildet ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19990810205 EP1035458B1 (de) | 1999-03-08 | 1999-03-08 | Hydraulisches Regelgerät mit Ablaufsteuerung |
DE59907859T DE59907859D1 (de) | 1999-03-08 | 1999-03-08 | Hydraulisches Regelgerät mit Ablaufsteuerung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19990810205 EP1035458B1 (de) | 1999-03-08 | 1999-03-08 | Hydraulisches Regelgerät mit Ablaufsteuerung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1035458A1 EP1035458A1 (de) | 2000-09-13 |
EP1035458B1 true EP1035458B1 (de) | 2003-11-26 |
Family
ID=8242719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990810205 Expired - Lifetime EP1035458B1 (de) | 1999-03-08 | 1999-03-08 | Hydraulisches Regelgerät mit Ablaufsteuerung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1035458B1 (de) |
DE (1) | DE59907859D1 (de) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4426152C2 (de) * | 1994-07-23 | 1999-01-07 | Zahnradfabrik Friedrichshafen | Elektromagnetisches Druckregelventil |
KR19990087371A (ko) * | 1996-02-28 | 1999-12-27 | 모서 다니엘 | 내하중 브레이크 밸브 |
-
1999
- 1999-03-08 EP EP19990810205 patent/EP1035458B1/de not_active Expired - Lifetime
- 1999-03-08 DE DE59907859T patent/DE59907859D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1035458A1 (de) | 2000-09-13 |
DE59907859D1 (de) | 2004-01-08 |
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