FR2356017A2 - Moteur hydraulique a mouvement alternatif - Google Patents
Moteur hydraulique a mouvement alternatifInfo
- 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
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.
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)
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 |
US6152013A (en) * | 1996-07-25 | 2000-11-28 | Komatsu Ltd. | Hydraulically actuated breaker with lost-motion prevention device |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE299518C (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 |
CA1034837A (fr) * | 1974-12-18 | 1978-07-18 | Eugene L. Krasnoff | Commande hydraulique |
-
1977
- 1977-01-27 BE BE174428A patent/BE850812R/fr not_active IP Right Cessation
- 1977-02-11 FI FI770462A patent/FI770462A/fi not_active Application Discontinuation
- 1977-05-04 JP JP5088977A patent/JPS531602A/ja active Granted
- 1977-06-20 FR FR7718859A patent/FR2356017A2/fr active Granted
- 1977-06-23 DE DE19772728299 patent/DE2728299A1/de not_active Ceased
-
1978
- 1978-03-27 US US05/890,382 patent/US4142447A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5758274B2 (fr) | 1982-12-08 |
DE2728299A1 (de) | 1978-01-05 |
FR2356017B2 (fr) | 1981-07-10 |
US4142447A (en) | 1979-03-06 |
BE850812R (fr) | 1977-05-16 |
FI770462A (fr) | 1977-12-25 |
JPS531602A (en) | 1978-01-09 |
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