IT1045650B - Perfezionamenti apportati a valvole idrauliche - Google Patents

Perfezionamenti apportati a valvole idrauliche

Info

Publication number
IT1045650B
IT1045650B IT28939/75A IT2893975A IT1045650B IT 1045650 B IT1045650 B IT 1045650B IT 28939/75 A IT28939/75 A IT 28939/75A IT 2893975 A IT2893975 A IT 2893975A IT 1045650 B IT1045650 B IT 1045650B
Authority
IT
Italy
Prior art keywords
hydraulic valves
refinements made
refinements
valves
hydraulic
Prior art date
Application number
IT28939/75A
Other languages
English (en)
Original Assignee
Massey Ferguson Services Nv
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 Massey Ferguson Services Nv filed Critical Massey Ferguson Services Nv
Application granted granted Critical
Publication of IT1045650B publication Critical patent/IT1045650B/it

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
    • F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/02—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motors at a distance from liquid pumps
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7771—Bi-directional flow valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)
  • Valve Device For Special Equipments (AREA)
IT28939/75A 1974-11-18 1975-10-31 Perfezionamenti apportati a valvole idrauliche IT1045650B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49872/74A GB1535175A (en) 1974-11-18 1974-11-18 Hydraulic valves

Publications (1)

Publication Number Publication Date
IT1045650B true IT1045650B (it) 1980-06-10

Family

ID=10453841

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28939/75A IT1045650B (it) 1974-11-18 1975-10-31 Perfezionamenti apportati a valvole idrauliche

Country Status (8)

Country Link
US (1) US4013093A (it)
AU (1) AU8668275A (it)
BE (1) BE835632A (it)
BR (1) BR7507537A (it)
DE (1) DE2551489A1 (it)
FR (1) FR2291431A1 (it)
GB (1) GB1535175A (it)
IT (1) IT1045650B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616251C2 (de) * 1976-04-13 1986-05-15 Robert Bosch Gmbh, 7000 Stuttgart Druckbegrenzungs- und Nachsaugventil
DE2631922A1 (de) * 1976-07-15 1978-01-19 Linde Ag Kombiniertes druckbegrenzungsventil und rueckschlagventil
US4138929A (en) * 1977-10-17 1979-02-13 Caterpillar Tractor Co. Pressure responsive check valve
DE2848208C2 (de) * 1978-11-07 1986-01-02 Hydromatik Gmbh, 7900 Ulm Vorgesteuertes Druckbegrenzungsventil mit Einspeisefunktion
US4294278A (en) * 1979-12-14 1981-10-13 Caterpillar Tractor Co. Pressure modulating valve
WO1981001733A1 (en) * 1979-12-14 1981-06-25 Caterpillar Tractor Co Pressure modulating valve
US4738282A (en) * 1981-09-28 1988-04-19 Mcdonnell Douglas Corporation Zero leakage valve
US4718330A (en) * 1982-01-18 1988-01-12 Eltra Corporation Hydraulic cylinder
DE3513890A1 (de) * 1985-04-17 1986-10-23 Oerlikon-Boehringer GmbH, 7320 Göppingen Hydraulische positionierantriebseinrichtung
SE461391B (sv) * 1987-10-28 1990-02-12 Bt Ind Ab Hydraulisk lyftanordning
JP3537057B2 (ja) * 1994-08-05 2004-06-14 株式会社小松製作所 圧力補償弁
US10378665B2 (en) * 2015-09-18 2019-08-13 Shimadzu Corporation Pressure control valve
US20230243325A1 (en) * 2022-02-01 2023-08-03 Sun Hydraulics, Llc Pressure Relief Valve with a Reverse Free Flow Configuration Integrated Therewith

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090398A (en) * 1962-02-05 1963-05-21 American Brake Shoe Co Dual direction relief or sequence type valve
US3268220A (en) * 1964-01-06 1966-08-23 Dro Engineering Company Di Hydraulic cushion for dies
US3710824A (en) * 1971-05-07 1973-01-16 Caterpillar Tractor Co High pressure relief valve
US3783891A (en) * 1972-03-22 1974-01-08 Under Sea Industries Balanced regulator second stage

Also Published As

Publication number Publication date
BE835632A (fr) 1976-03-16
US4013093A (en) 1977-03-22
BR7507537A (pt) 1976-08-10
FR2291431A1 (fr) 1976-06-11
AU8668275A (en) 1977-05-26
DE2551489A1 (de) 1976-05-20
GB1535175A (en) 1978-12-06

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