FR2356017A2 - Moteur hydraulique a mouvement alternatif - Google Patents

Moteur hydraulique a mouvement alternatif

Info

Publication number
FR2356017A2
FR2356017A2 FR7718859A FR7718859A FR2356017A2 FR 2356017 A2 FR2356017 A2 FR 2356017A2 FR 7718859 A FR7718859 A FR 7718859A FR 7718859 A FR7718859 A FR 7718859A FR 2356017 A2 FR2356017 A2 FR 2356017A2
Authority
FR
France
Prior art keywords
hydraulic motor
piston
damping
pressure
alternative movement
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.)
Granted
Application number
FR7718859A
Other languages
English (en)
Other versions
FR2356017B2 (fr
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of FR2356017A2 publication Critical patent/FR2356017A2/fr
Application granted granted Critical
Publication of FR2356017B2 publication Critical patent/FR2356017B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Actuator (AREA)

Abstract

L'invention concerne un moteur hydraulique à moteur alternatif, éliminant les problèmes de pulsation de pression. Un piston libre 208 et un distributeur à commande différentielle sont tous deux soumis à la pression d'une chambre d'amortissement 202 et d'une chambre de travail 204. La position du distributeur est fonction de la pression d'amortissement qui dépend de la position axiale du piston 204. Les pressions relatives sont choisies pour créer un mouvement alternatif du piston avec un amortissement efficace en fin de course. Le distributeur est un tiroir classique, monté dans un alésage séparé. Applications : marteaux hydrauliques, compacteurs, perforatrices, etc.
FR7718859A 1976-06-24 1977-06-20 Moteur hydraulique a mouvement alternatif Granted FR2356017A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69949376A 1976-06-24 1976-06-24

Publications (2)

Publication Number Publication Date
FR2356017A2 true FR2356017A2 (fr) 1978-01-20
FR2356017B2 FR2356017B2 (fr) 1981-07-10

Family

ID=24809573

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718859A Granted FR2356017A2 (fr) 1976-06-24 1977-06-20 Moteur hydraulique a mouvement alternatif

Country Status (6)

Country Link
US (1) US4142447A (fr)
JP (1) JPS531602A (fr)
BE (1) BE850812R (fr)
DE (1) DE2728299A1 (fr)
FI (1) FI770462A (fr)
FR (1) FR2356017A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400302A1 (de) * 1984-01-03 1985-08-29 Mannesmann AG, 4000 Düsseldorf Hydraulisch betaetigte schlagvorrichtung
ZA923131B (en) * 1992-04-29 1993-10-29 Ingersoll Rand Co On-off valve for hydraulic rockdrill
WO1998004387A1 (fr) * 1996-07-25 1998-02-05 Komatsu Ltd. Defonceuse hydraulique avec dispositif de prevention de mouvement a vide
US6889778B2 (en) * 2003-01-31 2005-05-10 Ingersoll-Rand Company Rotary tool
ITPN20040020U1 (it) * 2004-11-25 2005-02-25 Silvano Bordignon Dispositivo vibratorio per evacuare articoli
SE538675C2 (sv) * 2012-02-17 2016-10-18 Construction Tools Pc Ab Slidventil, slaganordning & metod
US9272400B2 (en) 2012-12-12 2016-03-01 Ingersoll-Rand Company Torque-limited impact tool
US9737978B2 (en) 2014-02-14 2017-08-22 Ingersoll-Rand Company Impact tools with torque-limited swinging weight impact mechanisms
CH711414A1 (de) * 2015-08-13 2017-02-15 Hatebur Umformmaschinen Ag Vorrichtung zur Erzeugung impulsdynamischer Prozesskräfte.
KR102317232B1 (ko) * 2020-01-08 2021-10-22 주식회사 현대에버다임 유압 브레이커

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE286320C (fr) *
US1350342A (en) * 1919-10-25 1920-08-24 Ingersoll Rand Co Valve for percussive tools
US2867191A (en) * 1955-08-01 1959-01-06 Gewerk Eisenhuette Westfalia Free piston vibrators
US2932175A (en) * 1956-10-30 1960-04-12 Herrick L Johnston Inc Pressure generator for liquefied gas
US2937621A (en) * 1957-07-13 1960-05-24 Gewerk Eisenhuette Westfalia Pneumatic engine
US2921559A (en) * 1957-10-08 1960-01-19 Gewerk Eisenhuette Westfalia Piston engine provided with control valve
US3774502A (en) * 1971-05-14 1973-11-27 Krupp Gmbh Hydraulic percussion device with pressure-responsive control of impact frequency
ZA756923B (en) * 1974-12-18 1977-04-27 Ingersoll Rand Co Hydraulic actuator

Also Published As

Publication number Publication date
BE850812R (fr) 1977-05-16
JPS5758274B2 (fr) 1982-12-08
FR2356017B2 (fr) 1981-07-10
US4142447A (en) 1979-03-06
FI770462A (fr) 1977-12-25
DE2728299A1 (de) 1978-01-05
JPS531602A (en) 1978-01-09

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