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 (2)

Publications (2)

Family

ID=10037084

Family Applications (1)

Country Status (9)

Families Citing this family (9)

• 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

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