US2579670A - Hydraulic pressure transformer - Google Patents

Hydraulic pressure transformer Download PDF

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Publication number
US2579670A
US2579670A US83206A US8320649A US2579670A US 2579670 A US2579670 A US 2579670A US 83206 A US83206 A US 83206A US 8320649 A US8320649 A US 8320649A US 2579670 A US2579670 A US 2579670A
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US
United States
Prior art keywords
valve
pressure
channel
liquid
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.)
Expired - Lifetime
Application number
US83206A
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English (en)
Inventor
Hjarpe Eric George
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.)
SKF AB
Original Assignee
Svenska Kullagerfabriken AB
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 Svenska Kullagerfabriken AB filed Critical Svenska Kullagerfabriken AB
Application granted granted Critical
Publication of US2579670A publication Critical patent/US2579670A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L25/066—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
    • F04B9/117—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 the pumping members not being mechanically connected to each other
    • 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

Definitions

  • the device" according to the 1 present invention is governed preferably --en'tirely by hydraulic -meansby valves which are also'hydraulically'governed.
  • the -wholeaggregate will thus he simple and flexible and" there vill be h ai tlly any wear "on the parts.
  • @is put in communication with "the outlet 'l I through .itherfchannel 20, valve chamber l l," an annular channel 36 surroundingtthe valve 13 and the 'ch'annerii l.
  • valve chamber ID By the displacement of the valve l2 towards the right (Fig. 4) the valve chamber ID has again been put into communication with the inlet i and the liquid flows through the channel 14 to the valve chamber I5 and displaces the valve I3 back, to its original position, since the valve chamber [6 is again in communication with the outlet I! through the channel N3, the valve chamber 19, the channel 35, the annular channel 36 and the channel 34.
  • the position of the valves is now that shown in" Fig. 5.
  • the liquid now again flows from the inlet I through the valve chamber ID, the channel 2, the valve chamber II and channel to the cylinder 2
  • the pressure in the cylinder 6 will bethe same as that in the inlet I and forces the piston unit B-- in the direction from the cylinder 6, since the cylinder 39 is again in communication with the outlet I! through the channel 38, valve chamber 31 and channel 34.
  • the position of all parts is now once more that shown in Fig. 1.
  • a hydraulic pressure transformer having a. plurality of difierential pistons, each reciprocating in a low pressure cylinder and a high pressure cylinder, means for putting the low pressure cylinders into intermittent communication with a primary duct for pressure liquid and means for intermittently putting the high pressure 'cylinders. alternately into communication with a low pressure duct such as the said primary duct and a high pressure duct, the movement of the said differential pistons being controlled by automatically controlled governing means in such a way that liquid is always being delivered from at least one of the high pressure cylinders, the movements of the said governing means being hydraulically controlled by the movements of the said differential pistons.
  • each high pressure cylinder is provided with a check valve, through which it is intermittently put into communication with a common pressure line.
  • Hydraulic pressure transformer according to claim 1, characterized by a check valve between the low pressure duct and the high pressure cylinder of the differential piston.
  • Hydraulic pressure transformer according to claim 3 characterized thereby that each high pressure cylinder is provided with a check valve through which the cylinder is intermittently put into communication with a common pressure line.
  • Hydraulic pressure transformer according to claim 1 characterized by'piston valve means for distributing the fluid to the low pressure cylinders.
  • Hydraulic pressure transformer according to claim 1, characterized thereby that the control means includes channels from the low pressure cylinders, the mouths of the channels being positioned so as to be uncovered to the piston actuating hydraulic pressure only when the pistons have reached predetermined positions in the pressure strokes.
  • Hydraulic pressure transformer accord n to claim 6 wherein the piston valve means is operatively connected by channels to the low pressure cylinders, the mouths of the channel being positioned so as to be uncovered to the piston actuating hydraulic pressure only when the pistons have reached predetermined positions in the pressure strokes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
US83206A 1948-04-02 1949-03-24 Hydraulic pressure transformer Expired - Lifetime US2579670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE274965X 1948-04-02

Publications (1)

Publication Number Publication Date
US2579670A true US2579670A (en) 1951-12-25

Family

ID=20306860

Family Applications (1)

Application Number Title Priority Date Filing Date
US83206A Expired - Lifetime US2579670A (en) 1948-04-02 1949-03-24 Hydraulic pressure transformer

Country Status (5)

Country Link
US (1) US2579670A (en(2012))
BE (1) BE488198A (en(2012))
CH (1) CH274965A (en(2012))
FR (1) FR983660A (en(2012))
GB (1) GB665310A (en(2012))

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687694A (en) * 1952-04-25 1954-08-31 Baker Oil Tools Inc Hydraulic pressure booster
US2799444A (en) * 1956-03-13 1957-07-16 Otto J Schemmel Hydraulically operated compressors and the like
US2834295A (en) * 1954-01-20 1958-05-13 Skf Svenska Kullagerfab Ab Pneumatic liquid pressure pump
US2858767A (en) * 1955-10-13 1958-11-04 Neil V Smith Pumping apparatus
US2866415A (en) * 1953-07-15 1958-12-30 Bratt John Hydraulic transformers
US2890658A (en) * 1956-07-10 1959-06-16 Skf Svenska Kullagerfab Ab Pneumatic liquid pressure pump
US2939397A (en) * 1956-12-10 1960-06-07 Kobe Inc Fluid operated multiplex pump
US2996014A (en) * 1959-10-30 1961-08-15 Luther E Lee Pump
US3809502A (en) * 1973-04-06 1974-05-07 Bertea Corp Pressure transformer
US3893790A (en) * 1971-04-30 1975-07-08 Bendix Corp Dual single action ram intensifier
US3916931A (en) * 1972-06-12 1975-11-04 Abex Corp Fluid translating device having expansible chambers
US4345883A (en) * 1979-06-11 1982-08-24 Westerlund Robert E High pressure pumping apparatus for semi-fluid material
US4388049A (en) * 1980-09-29 1983-06-14 Deere & Company Fluid supply system using one fluid medium to move a second fluid medium
US4419055A (en) * 1980-09-26 1983-12-06 Deere & Company Low pressure fluid supply system
US4752192A (en) * 1986-06-13 1988-06-21 Ab Asea-Atom Rotating drum pump having a plurality of fluid driven pistons
US4844700A (en) * 1987-10-29 1989-07-04 Henderson Charles J Pressure amplifying pump system
US5049038A (en) * 1989-10-21 1991-09-17 Normalair-Garrett (Holdings) Ltd. Fluid compressors
US5385452A (en) * 1992-12-07 1995-01-31 Active Management, Inc. Hydraulic fluid pressurizer with fluid cushioning means
CN101922428A (zh) * 2009-06-15 2010-12-22 刘延兵 一种沼气池手动双缸出渣泵
US8869916B2 (en) 2010-09-09 2014-10-28 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
US9016400B2 (en) 2010-09-09 2015-04-28 National Oilwell Varco, L.P. Downhole rotary drilling apparatus with formation-interfacing members and control system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946504C (de) * 1952-09-04 1956-08-02 Kieler Howaldtswerke Ag Hydraulischer Transformator
DE1016562B (de) * 1954-01-20 1957-09-26 Skf Svenska Kullagerfab Ab Pneumatische Druckfluessigkeitspumpe mit mehreren mechanisch unabhaengig voneinander in je einem Zylinder arbeitenden Differentialkolben
DE1019564B (de) * 1954-04-23 1957-11-14 Raymond Joseph Collion Hydraulischer Druckwandler
DE1093674B (de) * 1958-05-02 1960-11-24 Karl Geisel Kontinuierlich arbeitender, pneumatischhydraulischer Druckuebersetzer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1451303A (en) * 1922-07-26 1923-04-10 Mitchell Edward Albert Gas-distributing system
US1600384A (en) * 1924-03-08 1926-09-21 John A Dienner Fluid-pressure system
US2231307A (en) * 1940-05-10 1941-02-11 Cleveland Pneumatic Tool Co Air pump
US2279364A (en) * 1939-09-01 1942-04-14 E M B Co Ltd Compressed air internsifier
US2293076A (en) * 1939-01-05 1942-08-18 Bristol Aeroplane Co Ltd Apparatus for increasing or reducing fluid pressure
US2340929A (en) * 1940-08-21 1944-02-08 E M B Co Ltd Compressed air intensifier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1451303A (en) * 1922-07-26 1923-04-10 Mitchell Edward Albert Gas-distributing system
US1600384A (en) * 1924-03-08 1926-09-21 John A Dienner Fluid-pressure system
US2293076A (en) * 1939-01-05 1942-08-18 Bristol Aeroplane Co Ltd Apparatus for increasing or reducing fluid pressure
US2279364A (en) * 1939-09-01 1942-04-14 E M B Co Ltd Compressed air internsifier
US2231307A (en) * 1940-05-10 1941-02-11 Cleveland Pneumatic Tool Co Air pump
US2340929A (en) * 1940-08-21 1944-02-08 E M B Co Ltd Compressed air intensifier

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687694A (en) * 1952-04-25 1954-08-31 Baker Oil Tools Inc Hydraulic pressure booster
US2866415A (en) * 1953-07-15 1958-12-30 Bratt John Hydraulic transformers
US2834295A (en) * 1954-01-20 1958-05-13 Skf Svenska Kullagerfab Ab Pneumatic liquid pressure pump
US2858767A (en) * 1955-10-13 1958-11-04 Neil V Smith Pumping apparatus
US2799444A (en) * 1956-03-13 1957-07-16 Otto J Schemmel Hydraulically operated compressors and the like
US2890658A (en) * 1956-07-10 1959-06-16 Skf Svenska Kullagerfab Ab Pneumatic liquid pressure pump
US2939397A (en) * 1956-12-10 1960-06-07 Kobe Inc Fluid operated multiplex pump
US2996014A (en) * 1959-10-30 1961-08-15 Luther E Lee Pump
US3893790A (en) * 1971-04-30 1975-07-08 Bendix Corp Dual single action ram intensifier
US3916931A (en) * 1972-06-12 1975-11-04 Abex Corp Fluid translating device having expansible chambers
US3809502A (en) * 1973-04-06 1974-05-07 Bertea Corp Pressure transformer
US4345883A (en) * 1979-06-11 1982-08-24 Westerlund Robert E High pressure pumping apparatus for semi-fluid material
US4419055A (en) * 1980-09-26 1983-12-06 Deere & Company Low pressure fluid supply system
US4388049A (en) * 1980-09-29 1983-06-14 Deere & Company Fluid supply system using one fluid medium to move a second fluid medium
US4752192A (en) * 1986-06-13 1988-06-21 Ab Asea-Atom Rotating drum pump having a plurality of fluid driven pistons
US4844700A (en) * 1987-10-29 1989-07-04 Henderson Charles J Pressure amplifying pump system
US5049038A (en) * 1989-10-21 1991-09-17 Normalair-Garrett (Holdings) Ltd. Fluid compressors
US5385452A (en) * 1992-12-07 1995-01-31 Active Management, Inc. Hydraulic fluid pressurizer with fluid cushioning means
CN101922428A (zh) * 2009-06-15 2010-12-22 刘延兵 一种沼气池手动双缸出渣泵
US8869916B2 (en) 2010-09-09 2014-10-28 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
US9016400B2 (en) 2010-09-09 2015-04-28 National Oilwell Varco, L.P. Downhole rotary drilling apparatus with formation-interfacing members and control system
US9476263B2 (en) 2010-09-09 2016-10-25 National Oilwell Varco, L.P. Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter

Also Published As

Publication number Publication date
GB665310A (en) 1952-01-23
FR983660A (fr) 1951-06-26
BE488198A (en(2012))
CH274965A (de) 1951-04-30

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