NL7602214A - Linear hydraulic drive motor - has collared cylinder forming auxiliary valve working in bore in larger piston section - Google Patents

Linear hydraulic drive motor - has collared cylinder forming auxiliary valve working in bore in larger piston section

Info

Publication number
NL7602214A
NL7602214A NL7602214A NL7602214A NL7602214A NL 7602214 A NL7602214 A NL 7602214A NL 7602214 A NL7602214 A NL 7602214A NL 7602214 A NL7602214 A NL 7602214A NL 7602214 A NL7602214 A NL 7602214A
Authority
NL
Netherlands
Prior art keywords
piston
cylinder
valve
bore
linear hydraulic
Prior art date
Application number
NL7602214A
Other languages
Dutch (nl)
Original Assignee
Amiad Systems Ltd
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 Amiad Systems Ltd filed Critical Amiad Systems Ltd
Priority to NL7602214A priority Critical patent/NL7602214A/en
Publication of NL7602214A publication Critical patent/NL7602214A/en

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
    • F01L25/063—Arrangements with main and auxiliary valves, at least one of them being fluid-driven the auxiliary valve being actuated by the working motor-piston or piston-rod
    • 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
    • F03C1/0076—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 the liquid under pressure being continuously delivered to one cylinder chamber through a valve in the piston for actuating the return stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Actuator (AREA)
  • Hydraulic Motors (AREA)

Abstract

The linear hydraulic motor has a differential piston working in a cylinder, and an assembly inside the piston and passing through the cylinder end wall. The piston is reciprocated by water pressure acting alternately against the piston front and rear faces under control of a valve, also discharging the water through the cylinder wall after pressure reduction. The larger diameter portion of the piston is in the front part of the motor. The two portions are accommodated in bores in the cylinder of different diameters, and there is a water inlet in the rear part of the larger bore, which has an end cover with a central drilling at the front, forming part of the valve discharging to the outside. The valve assembly incorporates an open cylinder, relieved so as to form collars at each end, acting as an auxiliary valve, with a ring forming a stop to restrict the forward movement.
NL7602214A 1976-03-03 1976-03-03 Linear hydraulic drive motor - has collared cylinder forming auxiliary valve working in bore in larger piston section NL7602214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7602214A NL7602214A (en) 1976-03-03 1976-03-03 Linear hydraulic drive motor - has collared cylinder forming auxiliary valve working in bore in larger piston section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7602214A NL7602214A (en) 1976-03-03 1976-03-03 Linear hydraulic drive motor - has collared cylinder forming auxiliary valve working in bore in larger piston section

Publications (1)

Publication Number Publication Date
NL7602214A true NL7602214A (en) 1977-09-06

Family

ID=19825733

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7602214A NL7602214A (en) 1976-03-03 1976-03-03 Linear hydraulic drive motor - has collared cylinder forming auxiliary valve working in bore in larger piston section

Country Status (1)

Country Link
NL (1) NL7602214A (en)

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BC A request for examination has been filed
BV The patent application has lapsed