DE2803286A1 - Charging valve for hydraulic control system - has spring loaded piston for charging and pressure relief valve for pump protection - Google Patents

Charging valve for hydraulic control system - has spring loaded piston for charging and pressure relief valve for pump protection

Info

Publication number
DE2803286A1
DE2803286A1 DE19782803286 DE2803286A DE2803286A1 DE 2803286 A1 DE2803286 A1 DE 2803286A1 DE 19782803286 DE19782803286 DE 19782803286 DE 2803286 A DE2803286 A DE 2803286A DE 2803286 A1 DE2803286 A1 DE 2803286A1
Authority
DE
Germany
Prior art keywords
valve
charging
control system
hydraulic control
hydraulic
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.)
Pending
Application number
DE19782803286
Other languages
German (de)
Inventor
Helmut Egner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19782803286 priority Critical patent/DE2803286A1/en
Publication of DE2803286A1 publication Critical patent/DE2803286A1/en
Pending legal-status Critical Current

Links

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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors

Abstract

The charging valve is used in hydraulic control systems. The valve is built into a return flow line between the control block outlet and the hydraulic tank, to block the return flow to the tank until the hydraulic control system is filled. Oil return from the block to the hydraulic tank is resisted with a specified pressure. The pressure builds up in the hydraulic control system and the piston (5) of the valve is loaded to open the valve (12) for resistance free flow of return oil. If the piston cannot open the valve unit then pressure is built up to a higher level and the valve opens automatically.

Description

B E S C H R E I B U N G DESCRIPTION

Titel : Ladeventil für Hydraulischevorsteueranlagen (Rückstauregelventil) Anwendungsgebiet : Yacheinbau in Hauptölstrom angeschlossenen Vorsteueranlagen im Rücklauf zwischen Ausgang - Steuerblock und Sydrauliktank.Title: Loading valve for hydraulic pilot control systems (back pressure control valve) Area of application: Yach installation in pilot control systems connected to the main oil flow in Return between the output control block and the hydraulic tank.

zweck : Dieses Ventil dient zum Absperren des Sücklaufes zum Hydrauliktank bis die Hydraulischevorsteueranlage gefüllt ist, und dann ydraulischvorgesteuert den Rücklauf zum Tank freigiebt.Purpose: This valve is used to shut off the return line to the hydraulic tank until the hydraulic pilot control system is filled, and then hydraulic pilot operated releases the return to the tank.

Stand der Technik : Es ist Bekannt, daß mit Derzeitigen Rückstauventilen das HyArauliköl aufgeheizt, und die Betriebstemperatur der Maschine erhöht wird. Das einen schnelleren verschleiß Irr Abdichtungen hervorruft.Prior Art: It is known that with current back pressure valves the hydraulic oil is heated and the operating temperature of the machine is increased. This causes faster wear and tear of the seals.

Aufgabe : Der Erfindung liegt die Aufgabe zugrunde : Die Hydraulischevorsteueranlage bei niedrigster Drehzahl des Motors mit drucköl zu versorgen, und den Kücklauf zu Tank tliederstandsfrei zu halten.Task: The invention is based on the task: The hydraulic pilot control system to supply pressure oil at the lowest speed of the engine, and to close the return flow Keep the tank free of low levels.

rzielbare Vorteile : Die Vorteile der Erfindung sind darin,daß auch durch Leichte Arbeitsbewegungen ( zB. Senkbewegungen die keinen Druck benötigen ) Die Vorsteuerung immer Funktionsfähig bleibt, und die Erwärmung des Rücklauföles Entfällt.Achievable advantages: The advantages of the invention are that also through light work movements (e.g. lowering movements that do not require pressure ) The pilot control always remains functional, and the heating of the return oil Not applicable.

B E S C H R E I B U N G zu B L A T T III Schnittzeichnung I : Ventil in Rückstaustellung Schnittzeichnung II : Ventil in Freierdurchlaufstellung Zu Zeichnung I : 1 = Ventil eingang 2 = Ventilgehäuse 3 = Verteilerraum zu den Ovalbohrungen 4 = Ovalbohrungen 5 = Kolben mit Kolbenstange und Abdichtung 6 = Vorsteueröl zulaufbohrung 7 = Feder 8 = Leckölbohrung 9 = Kolbenstangenführung mit Ventilkegelsitz 10 = Ovalsammelbohrungen 11 = O Ring 12 = Ventilkegel 13 = Kontermutter 14 = Ventilverschraubung 15 = Ventilausgang Zu Zeichnung 11 : Der Ölrücklauf vom Steuerblock zum Zydrauliktank wird mittels Rückstauregelventil zurückgestaut auf einen Druck von etwa 12-13 bar, der Druck baut sich zugleich in der Hydraulischenvorsteueranlage auf, und somit auf den Kolben(5) des Rückstau -regelventils und öffnet dz Ventilkegel (12) zum Wiederstandsfreien Durchgang des Rücklauföles. B E S C H R E I B U N G zu B L A T T III Sectional drawing I: Valve in backward position Sectional drawing II: valve in free flow position To drawing I: 1 = valve inlet 2 = valve housing 3 = distributor space to the oval bores 4 = oval bores 5 = piston with piston rod and seal 6 = pilot oil inlet bore 7 = spring 8 = leakage oil hole 9 = piston rod guide with valve cone seat 10 = oval collecting holes 11 = O ring 12 = valve cone 13 = lock nut 14 = valve screw connection 15 = valve outlet To drawing 11: The oil return from the control block to the hydraulic tank is controlled by means of Back pressure control valve backed up to a pressure of about 12-13 bar, the pressure builds up at the same time in the hydraulic pilot control system, and thus on the piston (5) of the backflow control valve and opens the valve cone (12) to ensure that there is no resistance Passage of the return oil.

Wird der Kolben (5) verhindert den Ventilkegel (12) zu öffnen, (zB. Durch Deffekt an der Steuerölleitung) Wird ein Druck von etwa 17 bar Zurückgestaut und der Ventilkegel (12) öffnet von Selbst. If the piston (5) prevents the valve cone (12) from opening (e.g. A pressure of around 17 bar is backed up due to a defect in the control oil line and the valve cone (12) opens by itself.

Dadurch ergiebt sich :ci;le Beschädigung der Hydraulikpumpe. This results in: ci; le damage to the hydraulic pump.

Claims (1)

PATENTANSPRÜCH Der Patentanspruch Bezient sich aut die Arbeitsweise und Beschaffenheit des Rückstauregelventils das in der Beschreibung Blatt 2 und in der Zeichnung Blatt 3 zu ersehen ist. PATENT CLAIM The patent claim relates to the way of working and nature of the back pressure control valve in the description sheet 2 and can be seen in the drawing on sheet 3.
DE19782803286 1978-01-26 1978-01-26 Charging valve for hydraulic control system - has spring loaded piston for charging and pressure relief valve for pump protection Pending DE2803286A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782803286 DE2803286A1 (en) 1978-01-26 1978-01-26 Charging valve for hydraulic control system - has spring loaded piston for charging and pressure relief valve for pump protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782803286 DE2803286A1 (en) 1978-01-26 1978-01-26 Charging valve for hydraulic control system - has spring loaded piston for charging and pressure relief valve for pump protection

Publications (1)

Publication Number Publication Date
DE2803286A1 true DE2803286A1 (en) 1979-08-16

Family

ID=6030400

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782803286 Pending DE2803286A1 (en) 1978-01-26 1978-01-26 Charging valve for hydraulic control system - has spring loaded piston for charging and pressure relief valve for pump protection

Country Status (1)

Country Link
DE (1) DE2803286A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389353B (en) * 1987-03-06 1989-11-27 Weber Gisela Flow control valve
CN106640823A (en) * 2017-02-24 2017-05-10 太原理工大学 Spring type hydraulic pulse valve and use method thereof
CN106704285A (en) * 2017-02-24 2017-05-24 太原理工大学 Hydraulically-pressed hydraulic pulse valve and using method thereof
CN106704284A (en) * 2017-02-24 2017-05-24 太原理工大学 Energy accumulator type hydraulic pulse valve and using method thereof
CN106762915A (en) * 2017-02-24 2017-05-31 太原理工大学 A kind of cavity type hydraulic impulse valve and its application method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389353B (en) * 1987-03-06 1989-11-27 Weber Gisela Flow control valve
CN106640823A (en) * 2017-02-24 2017-05-10 太原理工大学 Spring type hydraulic pulse valve and use method thereof
CN106704285A (en) * 2017-02-24 2017-05-24 太原理工大学 Hydraulically-pressed hydraulic pulse valve and using method thereof
CN106704284A (en) * 2017-02-24 2017-05-24 太原理工大学 Energy accumulator type hydraulic pulse valve and using method thereof
CN106762915A (en) * 2017-02-24 2017-05-31 太原理工大学 A kind of cavity type hydraulic impulse valve and its application method
CN106762915B (en) * 2017-02-24 2018-03-09 太原理工大学 A kind of cavity type hydraulic impulse valve and its application method
CN106704284B (en) * 2017-02-24 2018-03-09 太原理工大学 A kind of energy storage type hydraulic impulse valve and its application method

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