EP3514381A1 - Vorrichtung und verfahren zum verdichten eines arbeitsmediums - Google Patents

Vorrichtung und verfahren zum verdichten eines arbeitsmediums Download PDF

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Publication number
EP3514381A1
EP3514381A1 EP18152933.0A EP18152933A EP3514381A1 EP 3514381 A1 EP3514381 A1 EP 3514381A1 EP 18152933 A EP18152933 A EP 18152933A EP 3514381 A1 EP3514381 A1 EP 3514381A1
Authority
EP
European Patent Office
Prior art keywords
compressor
drive
medium
cylinder
pressure
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.)
Withdrawn
Application number
EP18152933.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert Adler
Georg Fahrthofer
Sarah Gruber
Christoph Nagl
Markus Rasch
Markus Stephan
Henning WILLIG
Rene HIMMELSTEIN
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.)
MAXIMATOR GmbH
Original Assignee
MAXIMATOR GmbH
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 MAXIMATOR GmbH filed Critical MAXIMATOR GmbH
Priority to EP18152933.0A priority Critical patent/EP3514381A1/de
Priority to DK19700822.0T priority patent/DK3728846T3/da
Priority to ES19700822T priority patent/ES2881647T3/es
Priority to US16/964,172 priority patent/US11401925B2/en
Priority to HUE19700822A priority patent/HUE054963T2/hu
Priority to EP19700822.0A priority patent/EP3728846B1/de
Priority to PL19700822T priority patent/PL3728846T3/pl
Priority to PT197008220T priority patent/PT3728846T/pt
Priority to SI201930074T priority patent/SI3728846T1/sl
Priority to PCT/EP2019/051537 priority patent/WO2019145314A1/de
Priority to JP2020540395A priority patent/JP6962648B2/ja
Publication of EP3514381A1 publication Critical patent/EP3514381A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • 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
    • 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
    • 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
    • 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
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • 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
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • 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
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/133—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor

Definitions

  • the invention relates to a device for compressing a working medium having the features of the preamble of claim 1 and to a method for compressing a working medium having the features of the preamble of claim 8.
  • Such compressors are known in the prior art in various designs (see, for example, the US 4,104,008 A ).
  • the invention sets the goal to increase the efficiency of the drive of the high-pressure piston.
  • the heat exchanger is set up for heat exchange between the working medium after compression in the second cylinder and the drive medium prior to entry into the first cylinder of the pressure booster.
  • the temperature of the drive medium can thus be increased in the compressed state before the drive piston is acted upon by the drive medium in the compressed state.
  • This principle can be used with different types of compressors, in particular with a single or double-acting, single-stage or two-stage compressor.
  • the compressor can also be designed as a piston compressor single or double acting, single stage or two stages.
  • the location and direction indications refer to the flow direction of the drive medium or the working medium in the compressor operation.
  • a closed circuit for the drive medium is provided with a first line from the compressor to the first cylinder and with a second line from the first cylinder to the compressor.
  • the heat exchanger is preferably designed as a recuperator, wherein the compressed drive medium and the compressed working fluid are separated from each other by means of at least one wall.
  • the heat exchanger is designed as a regenerator, wherein a heat storage is provided in a heat exchanger mass.
  • a heat exchanger may be provided, for example, a plate heat exchanger or a tube-in-tube heat exchanger.
  • a plate heat exchanger or a tube-in-tube heat exchanger.
  • various designs of heat exchangers are known with which the heat content of the compressed working medium can be transferred to the compressed drive medium.
  • the compressor is designed to be fully hermetic or semi-hermetic.
  • a "fully hermetic" compressor is understood to mean an embodiment in which a preferably pressure-tight housing encloses both a drive motor and a compressor unit, wherein the enclosing housing is in particular welded and the media lines are passed through the housing.
  • a “semi-hermetic" compressor is understood to mean an embodiment in which a drive motor is pressure-tightly and detachably connected to a compressor housing.
  • an open compressor is provided.
  • an "open" compressor is understood to mean an embodiment in which at least one side of a compressor unit protrudes from a shaft journal or other load transfer means, via which working power can be introduced into the compressor unit.
  • the compressor and the closed circuit for the drive medium are adapted to lead the drive medium in a circle at a higher pressure than ambient pressure.
  • a cooler for cooling the drive medium between the first cylinder of the pressure booster and the compressor is arranged in the second line of the closed circuit.
  • the temperature of the drive medium is lowered during the return from the first cylinder to the compressor.
  • the temperature of the drive medium can be increased after compression by heat exchange with the compressed working medium without the temperature in the closed circuit would be increased more and more on the whole.
  • the working medium is therefore guided in a closed circuit at different temperature levels in order to achieve optimum efficiency when driving the high-pressure piston.
  • a first buffer memory is preferably provided between the compressor and the heat exchanger and / or a second buffer memory between the cooler and the compressor.
  • a spool valve is provided between the compressor and the first cylinder, which can be switched between a first position and a second position, by means of the drive medium, a drive piston which seals a first volume of the first cylinder relative to a second volume of the first cylinder. and to move on.
  • the spool In the first position, the spool connects the first conduit to a first volume of the first cylinder and the second conduit to a second volume of the first cylinder.
  • the spool In the second position, connects the first conduit to the second volume of the first cylinder and the second conduit to the first volume of the first cylinder.
  • the drive medium in the compressor is compressed from an input pressure to an output pressure, wherein the input pressure is greater than an ambient pressure.
  • the inlet pressure of the drive medium at the inlet of the compressor is preferably between 0.5 bar and 50 bar, in particular between 2 bar and 30 bar.
  • the output pressure of the drive medium at the outlet of the compressor is preferably between 1 bar and 100 bar, in particular between 5 bar and 40 bar.
  • cooling of the drive medium emerging from the first cylinder is preferably carried out by means of a cooler.
  • the drive medium is preferably different from the working medium.
  • the drive medium is gaseous, wherein as drive medium preferably one of air, nitrogen, CO 2 , argon or krypton or a mixture thereof is provided.
  • the conventional gas-powered compressors require a large amount of energy to provide the drive power needed to drive the high-pressure piston. Due to the closed circuit of the drive medium on the one hand and the heat transfer from the compressed working fluid to the compressed drive medium on the other hand, the efficiency in the operation of the drive piston can be significantly increased.
  • the working medium gaseous, wherein preferably molecular hydrogen is provided as the working medium.
  • the pressure of the working medium is preferably increased from an initial pressure, in particular between 3 bar and 500 bar, to a final pressure, in particular between 100 bar and 1500 bar, in particular between 700 bar and 1000 bar. These values are again to be understood as absolute pressure.
  • Fig. 1 shows an inventive device for compressing a working fluid by means of a high pressure piston, wherein a heat transfer from the compressed working fluid is performed on the compressed drive medium for the drive piston.
  • FIG. 1 schematically a device 1 for compressing a gaseous working medium, preferably molecular hydrogen, shown.
  • the device 1 has a compressor 2 for compressing a gaseous drive medium, preferably air.
  • a gaseous drive medium preferably air.
  • the compressor 2 may be designed as a piston or screw compressor.
  • the compressor may have exactly one stage or at least two stages.
  • the compressor 2 increases the pressure of the drive medium from an input pressure at an input 2 a of the compressor 2 to an output pressure at an output 2 b of the compressor 2.
  • the compressed drive medium is used to drive a pressure booster 3.
  • the pressure booster 3 also referred to as a pressure transducer, has a drive piston 4, which is reciprocated within a first cylinder 5 between a first end position and a second end position.
  • the drive medium is directed into the first cylinder 5.
  • the drive piston 4 seals a first volume 6 of the first cylinder 5 with respect to a second volume 7 of the first cylinder 5.
  • the pressure booster 3 also has a high-pressure piston 8, with which the working medium of a Initial pressure is compressed to a final pressure.
  • the high-pressure piston 8 is reciprocable within a second cylinder 9 between a first end position and a second end position.
  • the high pressure piston 8 is connected to the drive piston 4 such that the movement of the drive piston 4 is transmitted to the high pressure piston 8.
  • the high-pressure piston 8 has a smaller piston surface than the drive or low-pressure piston 4.
  • the drive piston 4 is double-acting with a further high pressure piston 10 within a high pressure cylinder 11 on the side facing away from the high pressure piston 8 side of the drive piston 4 is formed.
  • the working fluid is supplied to the second cylinder 9 with the initial pressure via a first supply line 12 and to the high-pressure cylinder 11 via a second supply line 13.
  • the working fluid is discharged with the final pressure via a first discharge line 14 from the second cylinder 9 and via a second discharge line 15 from the high-pressure cylinder 11.
  • a first discharge line 14 from the second cylinder 9 and via a second discharge line 15 from the high-pressure cylinder 11.
  • the supply and discharge valves 12a, 13a, 14a, 15a are provided.
  • the first derivative 14 and the second derivative 15 are merged in a common derivative 16.
  • only the first derivative 14 is provided.
  • the closed circuit 17 has a first line 18 from the output 2a of the compressor 2 to the first cylinder 5 and a second line 19 (feedback) from the first cylinder 5 back to the input 2b of the compressor 2.
  • a control device in particular a control slide 20, for changing the flow direction of the drive medium in the first cylinder 5 is provided.
  • the drive piston 4 can be pressurized from one side or from the other side, so that the switching of the control device causes the reciprocating movement of the drive piston 2.
  • the compressor 2 is designed to be fully hermetic or semi-hermetic.
  • gas leaks can thus be reduced.
  • the drive medium is viewed in the flow direction 21 of the drive medium between the compressor 2 and the first cylinder 5 of the pressure booster 3 via a heat exchanger 22, in which a heat exchange with the compressed working medium is performed.
  • the heat content of the working medium can be increased after compression in the second cylinder 9 to increase the temperature of the drive medium before entering the first cylinder 5 for the drive piston 4.
  • the product p * V is increased as the temperature of the compressed drive medium is increased.
  • the deliverable work and thus performance at the pressure converter is thereby increased.
  • less (electrical) power is needed for the compressor 2 for the same work compared to a conventional system.
  • a cooler 23 is arranged in the second line 19 in order to achieve cooling of the drive medium on the way from the first cylinder 5 of the pressure booster 3 back to the compressor 2.
  • the cooler 23 may be formed as a further heat exchanger with a fan 23 a.
  • a temperature measuring element 26 is also provided in the second line 19, which transmits the temperature of the working medium to a control unit 27, which controls the fan 23a in dependence on the temperature of the drive medium in the second line 19.
  • a first buffer memory 24 is provided between the compressor 2 and the heat exchanger 22 and a second buffer memory 25 between the radiator 23 and the compressor 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP18152933.0A 2018-01-23 2018-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums Withdrawn EP3514381A1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP18152933.0A EP3514381A1 (de) 2018-01-23 2018-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums
DK19700822.0T DK3728846T3 (da) 2018-01-23 2019-01-23 Fremgangsmåde og anordning til komprimering af et arbejdsmedium
ES19700822T ES2881647T3 (es) 2018-01-23 2019-01-23 Dispositivo y procedimiento para condensar un medio de trabajo
US16/964,172 US11401925B2 (en) 2018-01-23 2019-01-23 Device and method for compressing a working medium
HUE19700822A HUE054963T2 (hu) 2018-01-23 2019-01-23 Munkaanyag tömörítésére szolgáló módszer és eszköz
EP19700822.0A EP3728846B1 (de) 2018-01-23 2019-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums
PL19700822T PL3728846T3 (pl) 2018-01-23 2019-01-23 Sposób i urządzenie do zagęszczania czynnika roboczego
PT197008220T PT3728846T (pt) 2018-01-23 2019-01-23 Dispositivo e método para comprimir um meio de trabalho
SI201930074T SI3728846T1 (sl) 2018-01-23 2019-01-23 Naprava in postopek za komprimiranje delovnega medija
PCT/EP2019/051537 WO2019145314A1 (de) 2018-01-23 2019-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums
JP2020540395A JP6962648B2 (ja) 2018-01-23 2019-01-23 作動媒体を圧縮するための装置及び方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18152933.0A EP3514381A1 (de) 2018-01-23 2018-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums

Publications (1)

Publication Number Publication Date
EP3514381A1 true EP3514381A1 (de) 2019-07-24

Family

ID=61022210

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18152933.0A Withdrawn EP3514381A1 (de) 2018-01-23 2018-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums
EP19700822.0A Active EP3728846B1 (de) 2018-01-23 2019-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19700822.0A Active EP3728846B1 (de) 2018-01-23 2019-01-23 Vorrichtung und verfahren zum verdichten eines arbeitsmediums

Country Status (10)

Country Link
US (1) US11401925B2 (da)
EP (2) EP3514381A1 (da)
JP (1) JP6962648B2 (da)
DK (1) DK3728846T3 (da)
ES (1) ES2881647T3 (da)
HU (1) HUE054963T2 (da)
PL (1) PL3728846T3 (da)
PT (1) PT3728846T (da)
SI (1) SI3728846T1 (da)
WO (1) WO2019145314A1 (da)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104008A (en) 1976-06-16 1978-08-01 Schmidt Kranz & Co. Pump having fluid-actuated motor controlled by fluid-actuated distributor
DE3018625A1 (de) * 1980-05-16 1981-11-26 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Druckuebersetzer
US5324175A (en) * 1993-05-03 1994-06-28 Northern Research & Engineering Corporation Pneumatically operated reciprocating piston compressor
US6386841B1 (en) * 1998-12-28 2002-05-14 Schmidt, Kranz & Co. Gmbh Pneumatically operated hydraulic pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665808A (en) * 1970-10-07 1972-05-30 Walter H Vestal Pumping system for liquid hydrocarbons and the like
SE412939B (sv) * 1977-09-09 1980-03-24 Kaelle Eur Control Hydrauldriven deplacementpump serskilt for pumpning av tjocka och slitande medier
US4527634A (en) * 1982-03-03 1985-07-09 Ici Americas Inc. Emergency vapor powered pump assembly
GB8417539D0 (en) * 1984-07-10 1984-08-15 Dale Mansfield Ltd Pumping arrangements
US4569480A (en) * 1984-08-03 1986-02-11 Speeflo Manufacturing Corporation Surge controlled air-hydraulic material sprayer
WO2005121555A1 (en) * 2004-06-07 2005-12-22 Hunter Hitech Pty Ltd A pump assembly
FR2891347B1 (fr) * 2005-09-28 2007-11-02 Air Liquide Procede et dispositif de remplissage d'un gaz sous pression dans un reservoir
JP5495293B2 (ja) * 2009-07-06 2014-05-21 株式会社日立産機システム 圧縮機
JP6371653B2 (ja) * 2014-09-19 2018-08-08 株式会社スギノマシン 超高圧発生装置
AT515937B1 (de) * 2014-10-20 2016-01-15 Bhdt Gmbh Hydraulikantrieb für einen Druckübersetzer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104008A (en) 1976-06-16 1978-08-01 Schmidt Kranz & Co. Pump having fluid-actuated motor controlled by fluid-actuated distributor
DE3018625A1 (de) * 1980-05-16 1981-11-26 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Druckuebersetzer
US5324175A (en) * 1993-05-03 1994-06-28 Northern Research & Engineering Corporation Pneumatically operated reciprocating piston compressor
US6386841B1 (en) * 1998-12-28 2002-05-14 Schmidt, Kranz & Co. Gmbh Pneumatically operated hydraulic pump

Also Published As

Publication number Publication date
EP3728846A1 (de) 2020-10-28
DK3728846T3 (da) 2021-07-12
WO2019145314A1 (de) 2019-08-01
EP3728846B1 (de) 2021-06-02
US20210033085A1 (en) 2021-02-04
JP2021511464A (ja) 2021-05-06
JP6962648B2 (ja) 2021-11-05
PL3728846T3 (pl) 2021-11-15
ES2881647T3 (es) 2021-11-30
SI3728846T1 (sl) 2021-08-31
PT3728846T (pt) 2021-07-14
US11401925B2 (en) 2022-08-02
HUE054963T2 (hu) 2021-10-28

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