ZA722588B - Hydraulic percussive implement - Google Patents
Hydraulic percussive implementInfo
- Publication number
- ZA722588B ZA722588B ZA722588A ZA722588A ZA722588B ZA 722588 B ZA722588 B ZA 722588B ZA 722588 A ZA722588 A ZA 722588A ZA 722588 A ZA722588 A ZA 722588A ZA 722588 B ZA722588 B ZA 722588B
- Authority
- ZA
- South Africa
- Prior art keywords
- hydraulic percussive
- implement
- percussive implement
- hydraulic
- percussive
- Prior art date
Links
Classifications
-
- 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
- F01L27/00—Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00
- F01L27/04—Delayed-action controls, e.g. of cataract or dashpot type
-
- 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
- F03C1/0073—Reciprocating-piston liquid engines with single cylinder, double-acting piston one side of the double-acting piston being always under the influence of the liquid under pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Percussive Tools And Related Accessories (AREA)
- Safety Valves (AREA)
- Fluid-Damping Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1421271A GB1396307A (en) | 1971-05-11 | 1971-05-11 | Hydraulic percussive implement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA722588B true ZA722588B (en) | 1973-01-31 |
Family
ID=10037084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA722588A ZA722588B (en) | 1971-05-11 | 1972-04-17 | Hydraulic percussive implement |
Country Status (9)
| Country | Link |
|---|---|
| AU (1) | AU462813B2 (en) |
| CA (1) | CA951996A (en) |
| DE (1) | DE2223292C3 (en) |
| FR (1) | FR2139398A5 (en) |
| GB (1) | GB1396307A (en) |
| IT (1) | IT958825B (en) |
| SE (1) | SE397787B (en) |
| SU (1) | SU495810A3 (en) |
| ZA (1) | ZA722588B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1480753A (en) * | 1974-11-14 | 1977-07-27 | Hydraulics Ltd A | Hydraulically-operated devices |
| GB2117845B (en) * | 1982-04-03 | 1985-08-29 | Af Hydraulics | Hydraulic percussive apparatus |
| CA1259232A (en) * | 1986-12-24 | 1989-09-12 | Nikolai P. Ermilov | Percussive tool |
| FR2609661B1 (en) * | 1987-01-20 | 1989-05-26 | Sp K Bjur | PERCUSSIVE ACTION DEVICE |
| SE536289C2 (en) | 2011-04-05 | 2013-08-06 | Atlas Copco Rock Drills Ab | Hydraulic percussion for rock or concrete cutting equipment as well as drilling and breaking equipment |
| SE536758C2 (en) | 2012-11-28 | 2014-07-15 | Atlas Copco Rock Drills Ab | Percussion for a hydraulic rock drill, method for operating a percussion and hydraulic rock drill including percussion |
| KR102224271B1 (en) | 2014-01-31 | 2021-03-05 | 후루까와 로크 드릴 가부시끼가이샤 | Hydraulic hammering device |
| CH711414A1 (en) * | 2015-08-13 | 2017-02-15 | Hatebur Umformmaschinen Ag | Device for generating impulse dynamic process forces. |
-
1971
- 1971-05-11 GB GB1421271A patent/GB1396307A/en not_active Expired
-
1972
- 1972-04-17 ZA ZA722588A patent/ZA722588B/en unknown
- 1972-05-01 CA CA140,953A patent/CA951996A/en not_active Expired
- 1972-05-01 AU AU41735/72A patent/AU462813B2/en not_active Expired
- 1972-05-05 SE SE7205997A patent/SE397787B/en unknown
- 1972-05-09 IT IT68451/72A patent/IT958825B/en active
- 1972-05-10 SU SU1789159A patent/SU495810A3/en active
- 1972-05-10 FR FR7216646A patent/FR2139398A5/fr not_active Expired
- 1972-05-12 DE DE2223292A patent/DE2223292C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT958825B (en) | 1973-10-30 |
| DE2223292A1 (en) | 1972-11-23 |
| AU462813B2 (en) | 1975-07-10 |
| DE2223292B2 (en) | 1977-10-13 |
| DE2223292C3 (en) | 1978-06-08 |
| FR2139398A5 (en) | 1973-01-05 |
| AU4173572A (en) | 1973-12-20 |
| SE397787B (en) | 1977-11-21 |
| CA951996A (en) | 1974-07-30 |
| GB1396307A (en) | 1975-06-04 |
| SU495810A3 (en) | 1975-12-15 |
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