GB1468872A - - Google Patents

Info

Publication number
GB1468872A
GB1468872A GB1591074A GB1591074A GB1468872A GB 1468872 A GB1468872 A GB 1468872A GB 1591074 A GB1591074 A GB 1591074A GB 1591074 A GB1591074 A GB 1591074A GB 1468872 A GB1468872 A GB 1468872A
Authority
GB
United Kingdom
Prior art keywords
chamber
pressure
valve member
valve
lines
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
Application number
GB1591074A
Other languages
English (en)
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 filed Critical
Publication of GB1468872A publication Critical patent/GB1468872A/en
Expired 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/008—Reduction of noise or vibration
    • 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
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y10T137/7766—Choked passage through main valve head
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87233—Biased exhaust valve
    • Y10T137/87241—Biased closed

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Power Steering Mechanism (AREA)
GB1591074A 1973-04-14 1974-04-10 Expired GB1468872A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2318962A DE2318962C3 (de) 1973-04-14 1973-04-14 Ventileinrichtung für Hydraulikanlagen

Publications (1)

Publication Number Publication Date
GB1468872A true GB1468872A (enExample) 1977-03-30

Family

ID=5878132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1591074A Expired GB1468872A (enExample) 1973-04-14 1974-04-10

Country Status (9)

Country Link
US (1) US3926210A (enExample)
JP (1) JPS551441B2 (enExample)
BE (1) BE813070A (enExample)
DD (1) DD111602A5 (enExample)
DE (1) DE2318962C3 (enExample)
FR (1) FR2225682A1 (enExample)
GB (1) GB1468872A (enExample)
IT (1) IT1009454B (enExample)
NL (1) NL7404918A (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639331C2 (de) * 1976-09-01 1982-09-23 Wolfgang 7114 Pfedelbach Steinigen Hydraulische oder pneumatische Drei-Wege-Weiche
US4215720A (en) * 1978-10-02 1980-08-05 General Signal Corporation Fluid control valve system
JPS5639953A (en) * 1979-09-04 1981-04-15 Aisin Seiki Co Ltd Oil hydraulic servo unit
DK150948C (da) * 1981-08-10 1988-02-29 Danfoss As Hydrostatisk styreindretning
DE3134371C2 (de) * 1981-08-31 1985-01-03 Danfoss A/S, Nordborg Hydrostatische Lenkeinrichtung
DE3131619C1 (de) * 1981-08-10 1983-02-24 Danfoss A/S, 6430 Nordborg Hydrostatische Lenkeinrichtung
US4649706A (en) * 1982-09-30 1987-03-17 Hutson James Henry Hydraulic feed control system for log debarkers
DE3733517A1 (de) * 1987-10-03 1989-04-13 Danfoss As Druckbeeinflussungsvorrichtung fuer ein einen motor aufweisendes hydraulisches system
JPH0647702U (ja) * 1992-12-01 1994-06-28 株式会社小松製作所 慣性体駆動油圧回路のブレーキ装置
JP3463453B2 (ja) * 1996-03-28 2003-11-05 豊田工機株式会社 動力舵取装置
US6068064A (en) * 1998-05-20 2000-05-30 Case Corporation Agricultural implement with ground engaging tool and fluid circuit to control same
US6745992B2 (en) 2002-08-05 2004-06-08 Husco International, Inc. Pilot operated control valve having a poppet with integral pressure compensating mechanism
US20070157980A1 (en) * 2006-01-11 2007-07-12 Husco International, Inc. Pilot operated control valve having a two stage poppet
KR101088754B1 (ko) * 2009-10-20 2011-12-01 볼보 컨스트럭션 이큅먼트 에이비 유압 컨트롤밸브
JP5518537B2 (ja) * 2010-03-18 2014-06-11 株式会社ケーヒン 遮断弁故障診断装置
KR101431994B1 (ko) * 2010-08-23 2014-08-20 가부시키가이샤 코스멕 방향전환밸브장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362430A (en) * 1966-07-20 1968-01-09 Parker Hannifin Corp Relief-check assembly for directional control valve
US3506031A (en) * 1967-10-06 1970-04-14 Parker Hannifin Corp Relief-makeup check assembly for directional control valves

Also Published As

Publication number Publication date
JPS5030117A (enExample) 1975-03-26
DE2318962C3 (de) 1978-09-07
DE2318962A1 (de) 1974-10-31
US3926210A (en) 1975-12-16
BE813070A (fr) 1974-07-15
NL7404918A (enExample) 1974-10-16
IT1009454B (it) 1976-12-10
DD111602A5 (enExample) 1975-02-20
DE2318962B2 (de) 1978-01-05
JPS551441B2 (enExample) 1980-01-14
FR2225682A1 (enExample) 1974-11-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee