RO81932B - Supapa de retinere cu actionare suplimentara - Google Patents

Supapa de retinere cu actionare suplimentara

Info

Publication number
RO81932B
RO81932B RO93149A RO9314978A RO81932B RO 81932 B RO81932 B RO 81932B RO 93149 A RO93149 A RO 93149A RO 9314978 A RO9314978 A RO 9314978A RO 81932 B RO81932 B RO 81932B
Authority
RO
Romania
Prior art keywords
piston
delimited
cylinder
retaining valve
additional actuation
Prior art date
Application number
RO93149A
Other languages
English (en)
Other versions
RO81932A (ro
Inventor
Gunther Schwerin
Original Assignee
Robert Bosch G.M.B.H.
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 Robert Bosch G.M.B.H. filed Critical Robert Bosch G.M.B.H.
Publication of RO81932B publication Critical patent/RO81932B/ro
Publication of RO81932A publication Critical patent/RO81932A/ro

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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1826—Check valves which can be actuated by a pilot valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow
    • Y10T137/86944—One valve seats against other valve [e.g., concentric valves]
    • Y10T137/86968—With balancing chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow
    • Y10T137/86944—One valve seats against other valve [e.g., concentric valves]
    • Y10T137/86984—Actuator moves both valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Inventia se refera la o supapa de retinere cu actionare suplimentara, care poate fi montata în legatura cu o conducta racordata la un cilindru, în scopul evacuraa fluidului de sub un piston cu dubla actiune-aflat în cilindru atunci cînd se doreste coborîrea pistonului. Supapa, conform inventiei, are un obturator principal prevazut cu niste canale superior, de legatura, intermediar si inferior care comunica între ele. Canalul inferior este delimitat de catre un scaun inferior cu care este în contact un obturator sferic, iar inferior de catre o suprafata de forma tronconica cu baza mica dispusa spre alezaj, care la rîndul ei este delimitata inferior catre o suprafata cilindrica, marginita inferior de catre un umar de capat îndreptat spre o tija fixata de un piston scurt, aceasta din urma avînd o portiune superioara care este în legatura prin intermediul unei portiuni intermediare cu o portiune inferioara.
RO7893149A 1977-02-09 1978-02-08 Supapa de retinere cu actionare suplimentara RO81932A (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772705303 DE2705303A1 (de) 1977-02-09 1977-02-09 Rueckschlagventil mit zusaetzlicher betaetigung

Publications (2)

Publication Number Publication Date
RO81932B true RO81932B (ro) 1983-05-30
RO81932A RO81932A (ro) 1983-06-01

Family

ID=6000679

Family Applications (1)

Application Number Title Priority Date Filing Date
RO7893149A RO81932A (ro) 1977-02-09 1978-02-08 Supapa de retinere cu actionare suplimentara

Country Status (6)

Country Link
US (1) US4176688A (ro)
JP (1) JPS5398520A (ro)
DE (1) DE2705303A1 (ro)
FR (1) FR2380451A1 (ro)
GB (1) GB1562675A (ro)
RO (1) RO81932A (ro)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141262A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
GB2141263A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
DE3420214A1 (de) * 1984-05-30 1985-12-05 Robert Bosch Gmbh, 7000 Stuttgart Wegeventil
DE3638997C2 (de) * 1986-11-14 1994-07-21 Ecker Gmbh Maschbau Ventil für eine Druckflüssigkeitsleitung
EP0689015A1 (de) * 1994-06-21 1995-12-27 Staefa Control System Scs Ag Regelventil mit Stellantrieb
EP0883753B1 (de) * 1996-02-28 2002-04-17 Bucher Hydraulics AG Lasthalte-bremsventil
JP2001504197A (ja) 1996-11-11 2001-03-27 マンネスマン レックスロート アクチェンゲゼルシャフト 逆止弁
JP2001504196A (ja) 1996-11-11 2001-03-27 マンネスマン レックスロート アクチェンゲゼルシャフト バルブアッセンブリ及び該バルブアッセンブリの作動方法
DE19646443A1 (de) * 1996-11-11 1998-05-14 Rexroth Mannesmann Gmbh Rückschlagventilanordnung
DE19707722A1 (de) * 1996-11-11 1998-05-14 Rexroth Mannesmann Gmbh Ventilanordnung und Verfahren zur Ansteuerung einer derartigen Ventilanordnung
DE19813909B4 (de) * 1998-03-28 2007-02-15 Dbt Gmbh Hydraulisch aufsteuerbares Rückschlagventil für die Ausbauhydraulik in Bergbau-Untertagebetrieben
US7007708B2 (en) * 2003-10-17 2006-03-07 Delphi Techonologies, Inc. Flow control valve
WO2015172792A1 (en) * 2014-05-12 2015-11-19 Volvo Truck Corporation A fluid control valve
CN113738920B (zh) * 2021-08-27 2024-09-27 华煤发展科技有限公司 一种先导式液控单向阀

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7610549U1 (ro) * 1900-01-01 Hydronic Mechanische Und Hydraulische Antriebselemente Gmbh, 8200 Rosenheim
US3213887A (en) * 1964-08-10 1965-10-26 Henry W Angelery Dynamically balanced valve
DE1288860B (de) * 1965-07-20 1969-02-06 Kugelfischer G Schaefer & Co Elektromagnetisches Absperrventil
GB1350379A (en) * 1970-06-22 1974-04-18 Adan Hydraulics Ltd Non-return fluid-flow valves
US3667722A (en) * 1970-10-22 1972-06-06 Ite Imperial Corp Proportional valve
CH543028A (de) * 1972-11-09 1973-10-15 Beringer Hydraulik Gmbh Hydraulisches Senkbrems-Sperrventil
DD129984B1 (de) * 1977-04-12 1981-02-25 Goetz Kamm Bremsventil hoher regelguete

Also Published As

Publication number Publication date
FR2380451A1 (fr) 1978-09-08
FR2380451B1 (ro) 1983-10-21
US4176688A (en) 1979-12-04
JPS6119874B2 (ro) 1986-05-19
DE2705303A1 (de) 1978-08-10
RO81932A (ro) 1983-06-01
JPS5398520A (en) 1978-08-29
GB1562675A (en) 1980-03-12
DE2705303C2 (ro) 1988-10-27

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