FR2363008A1 - Pompe hydraulique actionnee par un fluide et comportant un robinet ameliore de detente de pression de fluide hydraulique - Google Patents

Pompe hydraulique actionnee par un fluide et comportant un robinet ameliore de detente de pression de fluide hydraulique

Info

Publication number
FR2363008A1
FR2363008A1 FR7725868A FR7725868A FR2363008A1 FR 2363008 A1 FR2363008 A1 FR 2363008A1 FR 7725868 A FR7725868 A FR 7725868A FR 7725868 A FR7725868 A FR 7725868A FR 2363008 A1 FR2363008 A1 FR 2363008A1
Authority
FR
France
Prior art keywords
fluid
hydraulic pump
hydraulic
relief valve
pressure relief
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.)
Withdrawn
Application number
FR7725868A
Other languages
English (en)
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.)
Enerpac Tool Group Corp
Original Assignee
Applied Power Inc
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 Applied Power Inc filed Critical Applied Power Inc
Publication of FR2363008A1 publication Critical patent/FR2363008A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/007—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/066—Arrangements with main and auxiliary valves, at least one of them being fluid-driven piston or piston-rod being used as auxiliary valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Check Valves (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Dispositif permettant de porter un fluide à une pression élevée au moyen d'un autre fluide à pression moins élevée. Il est constitué d'une pompe hydraulique comportant une soupape de détente manoeuvrée aisément pour faciliter le retour du fluide hydraulique haute pression depuis l'outil hydraulique vers le réservoir de fluide de la pompe hydraulique et comprenant une poignée 14 présentant une surface curviligne formant came 230 pour venir au contact de la soupape de détente pour la manoeuvrer. La pompe hydraulique comporte également un passage de fluide hydraulique sous pression ouvert en permanence 220 relié au passage de refoulement haute pression de la pompe hydraulique et en communication avec l'alésage de la soupape de détente pour faciliter l'action de la pression du fluide sur un épaulement 224 du plongeur de la soupape de détente et faciliter ainsi le déplacement axial du plongeur de la soupape en appliquant seulement une faible force axiale.
FR7725868A 1976-08-25 1977-08-24 Pompe hydraulique actionnee par un fluide et comportant un robinet ameliore de detente de pression de fluide hydraulique Withdrawn FR2363008A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71774976A 1976-08-25 1976-08-25

Publications (1)

Publication Number Publication Date
FR2363008A1 true FR2363008A1 (fr) 1978-03-24

Family

ID=24883307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725868A Withdrawn FR2363008A1 (fr) 1976-08-25 1977-08-24 Pompe hydraulique actionnee par un fluide et comportant un robinet ameliore de detente de pression de fluide hydraulique

Country Status (10)

Country Link
JP (1) JPS5327105A (fr)
AU (1) AU2749777A (fr)
BR (1) BR7705349A (fr)
CA (1) CA1063871A (fr)
DE (1) DE2738177A1 (fr)
FR (1) FR2363008A1 (fr)
GB (1) GB1547675A (fr)
IT (1) IT1079439B (fr)
MX (1) MX145712A (fr)
SE (1) SE7709323L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638494A1 (fr) * 1988-10-28 1990-05-04 Nike Ab Pompe entrainee pneumatiquement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047479B2 (ja) * 1979-09-18 1985-10-22 有光工業株式会社 多連式往復動ポンプ
JPS6110304A (ja) * 1984-06-26 1986-01-17 Fujitsu Ten Ltd 歪防止回路
JPS6335311U (fr) * 1986-08-25 1988-03-07
DE19714100C1 (de) * 1997-04-05 1998-03-05 Juergen Dr Ing Berbuer Druckluftbetriebene Pumpe
US10456801B2 (en) * 2017-01-26 2019-10-29 Graco Minnesota Inc. Material sprayer having sliding pump mounting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638494A1 (fr) * 1988-10-28 1990-05-04 Nike Ab Pompe entrainee pneumatiquement

Also Published As

Publication number Publication date
DE2738177A1 (de) 1978-03-02
IT1079439B (it) 1985-05-13
AU2749777A (en) 1979-02-08
JPS5327105A (en) 1978-03-14
BR7705349A (pt) 1978-05-23
MX145712A (es) 1982-03-25
GB1547675A (en) 1979-06-27
CA1063871A (fr) 1979-10-09
SE7709323L (sv) 1978-02-26

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Legal Events

Date Code Title Description
ST Notification of lapse