JPS4972774A - - Google Patents

Info

Publication number
JPS4972774A
JPS4972774A JP48109177A JP10917773A JPS4972774A JP S4972774 A JPS4972774 A JP S4972774A JP 48109177 A JP48109177 A JP 48109177A JP 10917773 A JP10917773 A JP 10917773A JP S4972774 A JPS4972774 A JP S4972774A
Authority
JP
Japan
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.)
Pending
Application number
JP48109177A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4972774A publication Critical patent/JPS4972774A/ja
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D9/00Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14Control devices for the reciprocating piston
    • B25D9/145Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03CPOSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00Reciprocating-piston liquid engines
    • F03C1/08Distributing valve-gear peculiar thereto
    • F03C1/10Distributing valve-gear peculiar thereto actuated by piston or piston-rod
    • F03C1/12Distributing valve-gear peculiar thereto actuated by piston or piston-rod mechanically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Basic Packing Technique (AREA)
  • Fluid-Pressure Circuits (AREA)
JP48109177A 1972-10-05 1973-09-27 Pending JPS4972774A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1458172A CH550322A (de) 1972-10-05 1972-10-05 Hydraulische steuereinrichtung fuer einen beidseitig ab- wechslungsweise beaufschlagbaren kolben hoher hubzahl.

Publications (1)

Publication Number Publication Date
JPS4972774A true JPS4972774A (xx) 1974-07-13

Family

ID=4402059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48109177A Pending JPS4972774A (xx) 1972-10-05 1973-09-27

Country Status (10)

Country Link
JP (1) JPS4972774A (xx)
AU (1) AU6088673A (xx)
BE (1) BE805286A (xx)
CH (1) CH550322A (xx)
DE (1) DE2348871A1 (xx)
ES (1) ES419466A1 (xx)
FR (1) FR2202541A5 (xx)
IT (1) IT995579B (xx)
NL (1) NL7313608A (xx)
ZA (1) ZA737667B (xx)

Also Published As

Publication number Publication date
ZA737667B (en) 1974-08-28
CH550322A (de) 1974-06-14
DE2348871A1 (de) 1974-04-11
ES419466A1 (es) 1976-03-16
FR2202541A5 (xx) 1974-05-03
BE805286A (fr) 1974-01-16
NL7313608A (xx) 1974-04-09
IT995579B (it) 1975-11-20
AU6088673A (en) 1975-04-10

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