SE8301571D0 - HYDRAULIC PERCUSSIVE APPARATUS - Google Patents
HYDRAULIC PERCUSSIVE APPARATUSInfo
- Publication number
- SE8301571D0 SE8301571D0 SE8301571A SE8301571A SE8301571D0 SE 8301571 D0 SE8301571 D0 SE 8301571D0 SE 8301571 A SE8301571 A SE 8301571A SE 8301571 A SE8301571 A SE 8301571A SE 8301571 D0 SE8301571 D0 SE 8301571D0
- Authority
- SE
- Sweden
- Prior art keywords
- striker
- piston
- chamber
- pressure
- pressure chamber
- 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
- 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
- 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
- F01B11/04—Engines combined with reciprocatory driven devices, e.g. hammers
-
- 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
- F03C1/08—Distributing valve-gear peculiar thereto
- F03C1/20—Distributing valve-gear peculiar thereto specially adapted for engines generating vibration only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Hydraulic percussive apparatus has a body 104 in which a unitary piston/striker 101 with piston portion 102 and striker portion 103 is reciprocable, for impact with a tool T releasably retained in the forward end of the body 104. The body 104 contains a forward pressure chamber 105 and a return pressure chamber 106. The forward pressure chamber 105 is controlled by a valve V which in a cyclic manner alternately connects the chamber 105 to supply pressure P and to exhaust Ex with fluid pressure in this chamber acting on the piston portion 102 to produce forward strokes of the piston/striker 101 so that the striker portion 103 impacts the tool T. The return pressure chamber 106 is connected to the supply pressure P to provide a continuous return force acting on the piston/striker 101. A channel 113 is closed off during normal reciprocation of the piston/striker 101 but in the event of an overstroke of the latter in the forward direction interconnects the two chambers 105 and 106. The resultant hydraulic flow through the channel 113 pressurises the chamber 105 sufficiently to apply a forward fluid pressure force bias to the piston/striker 101.This holds the piston/striker 101 in the forward position so that reciprocation thereof ceases. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08209962A GB2117845B (en) | 1982-04-03 | 1982-04-03 | Hydraulic percussive apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8301571D0 true SE8301571D0 (en) | 1983-03-22 |
SE8301571L SE8301571L (en) | 1983-10-04 |
Family
ID=10529515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8301571A SE8301571L (en) | 1982-04-03 | 1983-03-22 | HYDRAULIC SEAT MACHINE |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3311842A1 (en) |
FR (1) | FR2524362A1 (en) |
GB (1) | GB2117845B (en) |
SE (1) | SE8301571L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2575792A1 (en) * | 1985-01-09 | 1986-07-11 | Eimco Secoma | HYDRAULIC PRESSURE AMPLIFIER |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1531076A (en) * | 1967-07-12 | 1968-06-28 | Sonomotive Engineers Ltd | Advanced percussion tools and machines |
GB1396307A (en) * | 1971-05-11 | 1975-06-04 | Af Hydraulics | Hydraulic percussive implement |
US3930435A (en) * | 1973-05-25 | 1976-01-06 | Cooley William C | Hydraulically powered actuator |
ES464093A1 (en) * | 1977-11-12 | 1978-12-16 | Luis Miguel Castejon Castan | Fluid arrangement |
-
1982
- 1982-04-03 GB GB08209962A patent/GB2117845B/en not_active Expired
-
1983
- 1983-03-22 SE SE8301571A patent/SE8301571L/en not_active Application Discontinuation
- 1983-03-31 FR FR8305388A patent/FR2524362A1/en active Pending
- 1983-03-31 DE DE19833311842 patent/DE3311842A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2524362A1 (en) | 1983-10-07 |
DE3311842A1 (en) | 1983-10-13 |
GB2117845A (en) | 1983-10-19 |
GB2117845B (en) | 1985-08-29 |
SE8301571L (en) | 1983-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1460556A (en) | Impact tool for generating percussive forces | |
SE8300390L (en) | SET AND DEVICE FOR BATTLE DRILLING IN MARKET | |
GB1446096A (en) | Impact actuator | |
FI933100A0 (en) | Percussion | |
GB908883A (en) | Improvements in rock drills | |
SE7900897L (en) | HYDRAULIC IMPACT DRILL | |
SE9801380D0 (en) | percussion | |
ES513726A0 (en) | "IMPROVEMENTS IN THE SEALING DEVICES BETWEEN THE HYDRAULIC ENVIRONMENT AND THE EXTERNAL ENVIRONMENT OF A PERCUSSION DEVICE". | |
SE8205029L (en) | HYDRAULIC DRIVE FORM AND RETURN MACHINE | |
DE59000777D1 (en) | HYDRAULIC STRIKE. | |
SE8301571D0 (en) | HYDRAULIC PERCUSSIVE APPARATUS | |
ES513330A0 (en) | "IMPROVEMENTS IN THE PERCUSSION DEVICES MOVED BY FLUID UNDER PRESSURE". | |
US4121499A (en) | Switching mechanism | |
GB1310194A (en) | Hydraulic fluid actuated percussion tool | |
GB1568685A (en) | Reciprocatory devices | |
SU1263834A1 (en) | Hydraulic percussive device | |
SE7712816L (en) | HYDRAULIC DRIVE DEVICE FOR A SHUTTLE | |
SU1070305A1 (en) | Percussive pneumatic apparatus | |
SU655823A1 (en) | Pneumohydraulic percussive device | |
DE3864814D1 (en) | PRESSURE-OPERATED DEVICE FOR DRIVING A TURN SHAFT. | |
SE8101160L (en) | HYDRAULIC SEAT MACHINE | |
GB905525A (en) | Improvements in rock drills | |
SE9102290D0 (en) | AN HYDRAULIC HAMMER | |
FI962912A (en) | Pressure fluid hammer | |
SE8204316D0 (en) | PRESSURE FLUID DRIVE WORKING CYLINDER |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8301571-9 |