ZA756779B - Improvements in or relating to hydraulic oscillatory devices - Google Patents

Improvements in or relating to hydraulic oscillatory devices

Info

Publication number
ZA756779B
ZA756779B ZA00756779A ZA756779A ZA756779B ZA 756779 B ZA756779 B ZA 756779B ZA 00756779 A ZA00756779 A ZA 00756779A ZA 756779 A ZA756779 A ZA 756779A ZA 756779 B ZA756779 B ZA 756779B
Authority
ZA
South Africa
Prior art keywords
relating
oscillatory devices
hydraulic
hydraulic oscillatory
devices
Prior art date
Application number
ZA00756779A
Other languages
English (en)
Inventor
L Reynolds
Original Assignee
Af Hydraulics
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 Af Hydraulics filed Critical Af Hydraulics
Publication of ZA756779B publication Critical patent/ZA756779B/xx

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
    • F01L21/00—Use of working pistons or pistons-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines
    • F01L21/02—Piston or piston-rod used as valve members
    • 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
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
    • 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
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • 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
    • 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
    • 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
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/03—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction
    • F03C1/035—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction one single-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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
ZA00756779A 1974-11-14 1975-10-28 Improvements in or relating to hydraulic oscillatory devices ZA756779B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49232/74A GB1480753A (en) 1974-11-14 1974-11-14 Hydraulically-operated devices

Publications (1)

Publication Number Publication Date
ZA756779B true ZA756779B (en) 1976-10-27

Family

ID=10451636

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00756779A ZA756779B (en) 1974-11-14 1975-10-28 Improvements in or relating to hydraulic oscillatory devices

Country Status (12)

Country Link
US (1) US4207801A (it)
JP (1) JPS5167587A (it)
BE (1) BE835367A (it)
CA (1) CA1062585A (it)
CH (1) CH599835A5 (it)
DE (2) DE7535502U (it)
FR (1) FR2291374A1 (it)
GB (1) GB1480753A (it)
IT (1) IT1050635B (it)
NL (1) NL7512753A (it)
SE (1) SE413261B (it)
ZA (1) ZA756779B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3479911D1 (en) * 1984-06-05 1989-11-02 Italiana Forme Acciaio Hydraulic circuit for the control of reciprocating pistons pump
DE3505732A1 (de) * 1985-02-15 1986-08-28 Mannesmann AG, 4000 Düsseldorf Hydraulisch betriebene schlagvorrichtung
DE3913866A1 (de) * 1989-04-27 1990-10-31 Krupp Maschinentechnik Hydraulisches schlagwerk
SE528081C2 (sv) * 2004-08-25 2006-08-29 Atlas Copco Constr Tools Ab Hydraulisk slagmekanism
WO2006096850A2 (en) * 2005-03-09 2006-09-14 Zajac Optimum Output Motors, Inc. Internal combustion engine and method
SE536758C2 (sv) * 2012-11-28 2014-07-15 Atlas Copco Rock Drills Ab Slagverk till en hydraulisk bergborrmaskin, förfarande för drift av ett slagverk och hydraulisk bergborrmaskin inkluderande ett slagverk
FR3077753B1 (fr) * 2018-02-14 2020-01-31 Montabert Procede de reglage de la course de frappe d’un piston de frappe d’un appareil a percussions, et un appareil a percussions pour la mise en œuvre de ce procede
CN111890649B (zh) * 2020-08-03 2022-01-04 明德新材料科技(浙江)股份有限公司 一种仿古户外建材加工工艺
CN116715028B (zh) * 2023-08-09 2023-10-27 绵阳沃思测控技术有限公司 一种气力输送的吸料斗

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR531571A (fr) * 1921-03-02 1922-01-17 Stephanois Constr Meca Moteur à air comprimé ou vapeur à simple effet pour commande des appareils à mouvement alternatif et retour automatique
DE1703061C3 (de) * 1968-03-27 1974-02-14 Fried. Krupp Gmbh, 4300 Essen Hydraulisch betriebener Schubkolbenmotor
SE339817B (it) * 1970-06-16 1971-10-18 Atlas Copco Ab
GB1396307A (en) * 1971-05-11 1975-06-04 Af Hydraulics Hydraulic percussive implement
US3780621A (en) * 1971-06-07 1973-12-25 Atlas Copco Ab Hydraulic fluid actuated percussion tool

Also Published As

Publication number Publication date
DE2550129C2 (de) 1982-05-19
DE2550129A1 (de) 1976-05-26
SE413261B (sv) 1980-05-12
NL7512753A (nl) 1976-05-18
BE835367A (fr) 1976-03-01
GB1480753A (en) 1977-07-27
SE7512792L (sv) 1976-05-17
US4207801A (en) 1980-06-17
IT1050635B (it) 1981-03-20
CA1062585A (en) 1979-09-18
FR2291374B1 (it) 1980-03-28
AU8607275A (en) 1977-05-05
JPS5433629B2 (it) 1979-10-22
CH599835A5 (it) 1978-05-31
JPS5167587A (en) 1976-06-11
DE7535502U (de) 1976-11-04
FR2291374A1 (fr) 1976-06-11

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