EP0692072A1 - Durch druckmittel angetriebene vorrichtung die eine lineare bewegung ausführt - Google Patents

Durch druckmittel angetriebene vorrichtung die eine lineare bewegung ausführt

Info

Publication number
EP0692072A1
EP0692072A1 EP94909953A EP94909953A EP0692072A1 EP 0692072 A1 EP0692072 A1 EP 0692072A1 EP 94909953 A EP94909953 A EP 94909953A EP 94909953 A EP94909953 A EP 94909953A EP 0692072 A1 EP0692072 A1 EP 0692072A1
Authority
EP
European Patent Office
Prior art keywords
piston
pressure
primary piston
valve
pressure medium
Prior art date
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.)
Granted
Application number
EP94909953A
Other languages
English (en)
French (fr)
Other versions
EP0692072B1 (de
Inventor
Reijo Karppinen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0692072A1 publication Critical patent/EP0692072A1/de
Application granted granted Critical
Publication of EP0692072B1 publication Critical patent/EP0692072B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F01L21/04—Valves arranged in or on piston or piston-rod
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/113—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor

Definitions

  • Present devices are not applicable as permanently working gene ⁇ rators of to-and-fro motion only by hydraulic pressure, especially when the motion should be rapid in both directions, generation of pressure shocks in the valves avoided and one would not want to use a gas containing hydraulic accumulator in order to accelerate the motions.
  • Figre 1 shows an exemplary pump application of the invention.
  • the device is a hydraulically operated pump in a pressure washer with two cylinder spaces 20.
  • the water suction ducts are 22 and pres ⁇ sure channels 21.
  • Cylinders 1 in both ends of the device.
  • Secondary pistons 14 and 15 are separated from the drive fluid space 6 and 18 by packing pairs 16. Drainages 17 are between the packing pairs 16.
  • Cylinders 1 and the body center 2 are pieces of simple cylinders.
  • the pressure medium inlet channel is 4 and return channel 5.
  • Inside the body center 2 there is a primary piston 3, the diameter of which actual piston part is the greatest ring shaped part.
  • Secondary pistons 14 and 15 are fastened to primary piston 3 by thread.
  • Figure 1 shows all pistons in motion in the arrow direction to the right.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP94909953A 1993-03-25 1994-03-24 Durch druckmittel angetriebene vorrichtung die eine lineare bewegung ausführt Expired - Lifetime EP0692072B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI931324A FI96132C (fi) 1993-03-25 1993-03-25 Paineväliaineella toimiva laite ja pumppu
FI931324 1993-03-25
PCT/FI1994/000108 WO1994021915A1 (en) 1993-03-25 1994-03-24 Pressure medium driven device performing linear motion

Publications (2)

Publication Number Publication Date
EP0692072A1 true EP0692072A1 (de) 1996-01-17
EP0692072B1 EP0692072B1 (de) 1999-09-15

Family

ID=8537625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94909953A Expired - Lifetime EP0692072B1 (de) 1993-03-25 1994-03-24 Durch druckmittel angetriebene vorrichtung die eine lineare bewegung ausführt

Country Status (5)

Country Link
EP (1) EP0692072B1 (de)
JP (1) JP3538426B2 (de)
DE (1) DE69420713T2 (de)
FI (1) FI96132C (de)
WO (1) WO1994021915A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3369927A1 (de) * 2017-03-03 2018-09-05 PistonPower ApS Druckverstärker

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7740455B1 (en) 2007-07-09 2010-06-22 Brian Nissen Pumping system with hydraulic pump
ES2736402T3 (es) 2017-03-03 2019-12-30 Pistonpower Aps Intensificador de presión hidráulica de doble acción
EP3369928B1 (de) * 2017-03-03 2019-04-24 PistonPower ApS Hubkolbendruckverstärker
EP3369929B1 (de) 2017-03-03 2019-04-24 PistonPower ApS Druckverstärker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788781A (en) * 1972-03-17 1974-01-29 Owatonna Tool Co Hydraulic system
US4352644A (en) * 1980-05-12 1982-10-05 Owatonna Tool Company Air-hydraulic pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9421915A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3369927A1 (de) * 2017-03-03 2018-09-05 PistonPower ApS Druckverstärker
RU2679954C1 (ru) * 2017-03-03 2019-02-14 ПистонПауэр АпС Усилитель давления

Also Published As

Publication number Publication date
FI931324A0 (fi) 1993-03-25
FI96132C (fi) 1996-05-10
JPH08508076A (ja) 1996-08-27
JP3538426B2 (ja) 2004-06-14
FI931324A (fi) 1994-09-26
DE69420713D1 (de) 1999-10-21
EP0692072B1 (de) 1999-09-15
DE69420713T2 (de) 2000-05-31
WO1994021915A1 (en) 1994-09-29
FI96132B (fi) 1996-01-31

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