EP0109417A4 - Convertisseur de pression hydropneumatique. - Google Patents

Convertisseur de pression hydropneumatique.

Info

Publication number
EP0109417A4
EP0109417A4 EP19830901610 EP83901610A EP0109417A4 EP 0109417 A4 EP0109417 A4 EP 0109417A4 EP 19830901610 EP19830901610 EP 19830901610 EP 83901610 A EP83901610 A EP 83901610A EP 0109417 A4 EP0109417 A4 EP 0109417A4
Authority
EP
European Patent Office
Prior art keywords
hydraulic
cylinder
piston
space
hydraulic cylinder
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
EP19830901610
Other languages
German (de)
English (en)
Other versions
EP0109417B1 (fr
EP0109417A1 (fr
Inventor
Bela Zimber
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
Priority to AT83901610T priority Critical patent/ATE23913T1/de
Publication of EP0109417A1 publication Critical patent/EP0109417A1/fr
Publication of EP0109417A4 publication Critical patent/EP0109417A4/fr
Application granted granted Critical
Publication of EP0109417B1 publication Critical patent/EP0109417B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters

Definitions

  • the invention relates to a pneumohydraulic pressure converter with a pneumatic primary side and a hydraulic secondary side.
  • a gate direction consisting of a pneumatic working cylinder and a hydraulic working cylinder is generally used, in which the piston of the pneumatic working cylinder on the primary side is rigidly connected to the piston of the hydraulic working cylinder on the secondary side.
  • the pressure is converted in relation to the cylinder diameters.
  • the disadvantage of this solution is that the space required by the cylinders continuing to one another cannot be covered in any way.
  • the cost-effectiveness of the device is also adversely affected by the fact that one hydraulic and one pneumatic working cylinder is required, the sophisticated seal between the cylinders and the pistons having to be ensured.
  • the large space requirement and the high cost of the known solution limit the applicability of the device in numerous cases.
  • the aim of the invention was to eliminate the above-mentioned deficiencies and to develop a pneumohydraulic pressure transducer, the space requirement of which is considerably less, and which can also be implemented more cheaply and with much simpler means.
  • the invention is based on the knowledge that the set goal can be achieved if the primary side is designed as a hose and the secondary-side hydraulic cylinder is arranged within or within its strokes.
  • the invention relates to a pneumohydraulic pressure transducer with a pneumatic primary side and a hydraulic secondary side.
  • the pneumatic primary side is formed by a hose cylinder, which has an end face with a cylindrical recess, or the hydraulic cylinder within the cylindrical recess of the
  • End plate is arranged.
  • the piston of the hydraulic cylinder is itself attached to the end plate configured with the cylindrical recess.
  • the solution is extremely space-saving, since, in addition to the fact that the primary side and the secondary side are arranged one inside the other, their stroke also takes up only the space of one stroke.
  • the hydraulic cylinder according to the invention has an inflow space connected to the feed line, and a displacement space which can be separated off by means of the hydraulic piston.
  • the hydraulic piston itself does not even function as a piston, but rather as a displacement body and as a valve element that closes off the connection between the two spaces.
  • the pressure transducer according to the invention is extremely simple and is constructed from relatively inexpensive structural components.
  • the pneumo-hydraulic pressure transducer serving as an exemplary embodiment is arranged in the housing 11.
  • the primary side is formed by a hose cylinder 3, the end face of which is closed with an end plate 2 with the cylindrical recess.
  • the hose cylinder 3 is connected to a pneumatic pressure source via a nozzle 13 configured on a housing 11.
  • the secondary side of the pneumo-hydraulic pressure transducer is formed by a hydraulic cylinder 4, which is arranged in such a way that it lies on the primary-side hose cylinder 3 or within the recess in the end plate 2.
  • the piston 5 of the hydraulic cylinder 4 is attached to the end plate 2 of the hose cylinder 3.
  • the hydraulic cylinder 4 itself has an inflow space 7 connected to an inflow line 6 and a displacement space 8.
  • the displacement space 8 is connected to an outflow line 14.
  • a partition 9 is provided between the inflow space 7 and the displacement space 8, in which a seal 10 is arranged.
  • the seal cooperates with the piston 5 itself, as a result of which the inflow space 7 and the displacement space 8 are separated from one another.
  • the hydraulic cylinder is also provided with a seal 15 above the inflow space 7.
  • a compression spring 12 holds the hose cylinder 3 in its basic position.
  • the pneumo-hydraulic pressure converter works as follows:
  • Compressed air is introduced into the interior of the hose cylinder 3 via the connection piece 13, whereupon it expands or moves downwards in the direction of the end plate 2 and pushes the piston 5 of the hydraulic cylinder on the secondary side in front of it.
  • the piston 5 leaves the inflow space 7 and reaches the seal 10
  • it closes the path between the inflow space 7 and the displacement space 8
  • the end plate of the cylinder 3 returns to its basic position due to the action of the spring 12 and also pulls the piston 5 back. Now the path between the inflow space 7 and the displacement space 8 is opened again.
  • the pressure converter according to the invention can be used to carry out the work, in which case so-called suction pressure valves or check valves must actually be inserted into the inflow line 6 or inserted into the outflow line. If the pressure transducer is used as a pump, it seems expedient to keep several pressure transducers in operation, but in a shifted cycle, in order to reduce the pulsation or to achieve a more even delivery.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Actuator (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Convertisseur de pression hydropneumatique avec une première partie pneumatique et une seconde partie hydraulique. L'essentiel de l'invention réside en ce que la première partie pneumatique est formée par un cylindre souple muni d'une plaque frontale présentant une cavité cylindrique. Le cylindre de la seconde partie hydraulique est disposé dans la cavité cylindrique de la plaque frontale du cylindre souple. Le piston du cylindre hydraulique est fixé à la paroi frontale qui présente la cavité cylindrique. Le cylindre hydraulique présente une chambre d'arrivée du fluide, reliée à une conduite d'arrivée, et une chambre de déplacement qui en est séparable avec le cylindre hydraulique. La solution selon l'invention est d'encombrement particulièrement faible du fait que la première et la seconde partie sont placées l'une dans l'autre. En outre, la course du piston nécessite seulement un faible volume.
EP19830901610 1982-05-24 1983-05-24 Convertisseur de pression hydropneumatique Expired EP0109417B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83901610T ATE23913T1 (de) 1982-05-24 1983-05-24 Pneumohydraulischer druckwandler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU165282 1982-05-24
HU165282A HU188794B (en) 1982-05-24 1982-05-24 Pneumohydraulic pressure converter

Publications (3)

Publication Number Publication Date
EP0109417A1 EP0109417A1 (fr) 1984-05-30
EP0109417A4 true EP0109417A4 (fr) 1984-08-10
EP0109417B1 EP0109417B1 (fr) 1986-11-26

Family

ID=10955521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830901610 Expired EP0109417B1 (fr) 1982-05-24 1983-05-24 Convertisseur de pression hydropneumatique

Country Status (5)

Country Link
EP (1) EP0109417B1 (fr)
JP (1) JPS59501019A (fr)
DE (1) DE3367964D1 (fr)
HU (1) HU188794B (fr)
WO (1) WO1983004288A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445011A1 (de) * 1994-12-16 1996-06-20 Tox Pressotechnik Gmbh Hydraulischer Druckübersetzer
DE19538861A1 (de) * 1995-10-19 1997-04-24 Bayerische Motoren Werke Ag Vorrichtung zur Kraftverstärkung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US465145A (en) * 1891-12-15 Leather-splitting machine
FR1202448A (fr) * 1958-07-17 1960-01-11 Renault Perfectionnements aux surpresseurs
US3200717A (en) * 1963-04-11 1965-08-17 Einsiedler Charles Stephen Hydraulic pressure volume transformer
US3776267A (en) * 1972-09-07 1973-12-04 Borg Warner Pressure transfer unit with bellows
GB1376417A (en) * 1973-04-06 1974-12-04 Bendix Corp Hydro-pneumatic brake control system
FR2453299A1 (fr) * 1979-04-03 1980-10-31 Wabco Fahrzeugbremsen Gmbh Groupe multiplicateur de pression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163887A (en) * 1967-04-07 1969-09-10 Spencer Franklin Ltd Improvements in or relating to Pressure Intensifying Devices
FR2077960A1 (fr) * 1970-02-27 1971-11-05 Courbet Gerard
SU516842A1 (ru) * 1974-08-01 1976-06-05 Центральное проектно-конструкторское бюро Министерства речного флота РСФСР Гидравлический мультипликатор перемещени

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US465145A (en) * 1891-12-15 Leather-splitting machine
FR1202448A (fr) * 1958-07-17 1960-01-11 Renault Perfectionnements aux surpresseurs
US3200717A (en) * 1963-04-11 1965-08-17 Einsiedler Charles Stephen Hydraulic pressure volume transformer
US3776267A (en) * 1972-09-07 1973-12-04 Borg Warner Pressure transfer unit with bellows
GB1376417A (en) * 1973-04-06 1974-12-04 Bendix Corp Hydro-pneumatic brake control system
FR2453299A1 (fr) * 1979-04-03 1980-10-31 Wabco Fahrzeugbremsen Gmbh Groupe multiplicateur de pression

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8304288A1 *

Also Published As

Publication number Publication date
EP0109417B1 (fr) 1986-11-26
DE3367964D1 (en) 1987-01-15
EP0109417A1 (fr) 1984-05-30
HU188794B (en) 1986-05-28
WO1983004288A1 (fr) 1983-12-08
JPS59501019A (ja) 1984-06-07

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