US2959008A - Device for degassing and purifying hydraulic liquid of a hydraulic power system - Google Patents

Device for degassing and purifying hydraulic liquid of a hydraulic power system Download PDF

Info

Publication number
US2959008A
US2959008A US678128A US67812857A US2959008A US 2959008 A US2959008 A US 2959008A US 678128 A US678128 A US 678128A US 67812857 A US67812857 A US 67812857A US 2959008 A US2959008 A US 2959008A
Authority
US
United States
Prior art keywords
liquid
hydraulic
container
degassing
purifying
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
US678128A
Other languages
English (en)
Inventor
Caroli Gerhard
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Application granted granted Critical
Publication of US2959008A publication Critical patent/US2959008A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding

Definitions

  • the invention is particularly applicable to the degassing and purifying of pressure oil used in hydraulic cooling motors and the like.
  • Fig. 1 is a diagrammatic illustrationof vthe elements of a hydraulic power plant
  • Fig. 2 is a vertical cross section through the center of the hydraulic liquid container of the plant.
  • Fig. 3 is a horizontal section through the upper chamber of the hydraulic liquid container corresponding .to Fig. 2.
  • the power plant according to Fig. 1 comprises a pump 1 and a hydraulic motor 3 charged with hydraulic liquid, for example, pressure oil, by the pump 1 through a high pressure line or duct 2.
  • hydraulic liquid for example, pressure oil
  • the flow direction is indicated by the arrows.
  • the hydraulic liquid which in most instances will be an oil, flows through a return pipe 4 into a cylindrical, hydraulic liquid container 5 and from the latter through a suction pipe 6 back to the pump 1.
  • the cycle is thus completed.
  • the container 5 is divided by partition means into an upper chamber 12 and a lower chamber 13.
  • the two chambers 12 and 13 communicate with each other through an overow pipe 11.
  • the inlet end of this overflow pipe is located in the upper chamber 12 just below the closed front wall of the chamber 12, while the lower or outlet end 11 of the overflow pipe terminates above the inlet end of the suction line 6.
  • the outlet 11 of the overow pipe 11 is provided with a nozzle 8.
  • the outlet 11' and the inlet of the suction line 6 are rigidly connected with each other by means of strap or bridging members 7.
  • An inlet pipe 14 which is screwedly connected with the return line 4, opens tangentially into the 2,959,008 Patented Nov. 8, 1960 2 lower half of the upper chamber 12.
  • a magnetic lter 10 is arranged in the upper chamber 12.
  • an overilow valve 15 In the lower chamber 13 of the hydraulic liquid container '5 there is provided an overilow valve 15 and, further, a control valve 15', below Ithe overflow valve, as well asexit or vent means in the form of tube 9.
  • the hydraulic liquid which is returned from the motoi '3 through the return pipe 4 with a certain excess pressure enters the upper chamber 12 of the container myselfgentially through the inlet pipe 14.
  • the hydraulic liquid is in this manner imparted with a swirling motion and circulates around the permanent magnetic iilter 10 and the overflow pipe 11.
  • Both the magnetic'lilter 10 and the overflow pipe 11 are arranged in parallel relationship relative to the cylindrical axis of the container 5 and in the vicinity thereof.
  • the hydraulic liquid or pressure medium after it has risen in the upper filter chamber 12, flows through the overflow pipe 11 into the lower chamber 13 which latter chamber,fin contrast to the filter chamber 12, is not entirely filled with the pres- Sure medium or hydraulic liquid.
  • the outlet v11 of the overflow pipe 1l terminates below the liquid level of the hydraulic liquid.
  • the pressure medium liows then under excess pressure through the nozzle 8 provided at the outlet end 11 of the pipe 11 into the funnel-shaped enlarged inlet end of the suction line 6. In doing so, the air included or contained in the hydraulic liquid or pressure medium escapes upwardly and collects in the upper portion of the chamber 13 and thus may escape through the vent or discharge tube 9.
  • the invention is particularly directed to hydraulic power plants or systems, wherein a hydraulic liquid or oil contaner is interposed in the line between the hydraulic motor and the pump.
  • a hydraulic liquid or oil contaner is interposed in the line between the hydraulic motor and the pump.
  • Important features of the invention reside therein that the line leading from the motor Vtothe container opens up tangentially into lthe container, that the hydraulic liquid is discharged below the-inlet end' of an overflow pipe arranged within the container and conveying the hydraulic liquid, and further, that this overow pipe is arrangedV parallel to and in the vicinity of the cylinder axis of the container.
  • a magnetic filter is arranged within the c011- tainer.
  • Such magnetic filter may advantageously also be used in containers in which no swirling movement of the hydraulic liquid takes place.
  • the magnetic filter in containers wherein the pressure medium or hydraulic liquid ows through the container in a swirling movement, since due to this swirling movement, the pressure medium is for a relatively longer period under the action of the magnet and thus, the magnetic filter can readily be arranged in the container ,in such a manner that all the hydraulic liquid which passes through the container will ⁇ at ,least once ow past the immediate vicinity of the lilter 3 surface. Consequently, an ecient filter action is obtained.
  • the container is divided into two chambers.
  • the return line from the motor opens up tangentialily into the upper chamber of the container. From the upper chamber the liquid is conducted into the lower chamber through an overow pipe.
  • the lower chamber is not entirely iilled with the pressure medium.
  • the overow pipe terminates below the level of the vhydraulic liquid in the lower chamber and above the inlet end of the suction line.
  • the outlet of the overow pipe is nozzle-shaped. In this manner pressure conditions are created in the hydraulic Aliquid cycle which favorably influence the output of the hydraulic pump and which kfacilitate and accelerate the degassing of the pressure medium or hydraulic liquid.
  • a degassing device in said suction line comprising a liquid container including an upper portion having means for maintaining said portion completely lled with liquid and a lower portion having means for maintaining it tilled with liquid to a predetermined level, a first portion of said suction line returning from said uid moto-r extending into said container adjacent the bottom of said upper portion, a conduit extending between said upper portion and lower portion of said container, said conduit including an upper opening adjacent the top of said upper portion of said container and a lower opening of reduced dimension submerged in the liquld in the lower portion of said container, and a second portion of said suction line including an opening in the liquid of said container lower portion and in alignment with but spaced in an axial direction from the discharge of said conduit lower opening in the direction
  • bridging means extending between said conduit and said second portion of said suction line.
  • uid tap meansfor discharging water from the lower portion of said container above a predetermined level.
  • a liquid degassing device for positioning in the return line between a hydraulic motor and a hydraulic pump wherein liquid is forced from the motor to the pump, comprising, a Iliquid container including an upper portion and a lower portion, means for maintaining the upper portion completely filled with liquid, means for maintaining the lower portion filled with liquid to a predetermined level, said suction line includ-ing a first portion returning from said motor discharging into said upper portion of said liquid container, a conduit extending from a location adjacent the top of said upper container to a location intermediate the height of said lower portion of said containery andvterm-inating in a ⁇ discharge opening of reduced dimension submerged in the liquid in said lower portion of said container, and a second portion of said suction line including an opening submerged in the liquid of said lower portion in alignment with but spaced in an axial direction away from the discharge opening of said conduit in the direction of discharge flow, said conduit extending back to said pump means, whereby liquid returning from said motor is directed tirst into the upper portion of said container where it is forced to i

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US678128A 1956-08-16 1957-08-14 Device for degassing and purifying hydraulic liquid of a hydraulic power system Expired - Lifetime US2959008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE360543X 1956-08-16

Publications (1)

Publication Number Publication Date
US2959008A true US2959008A (en) 1960-11-08

Family

ID=6294538

Family Applications (1)

Application Number Title Priority Date Filing Date
US678128A Expired - Lifetime US2959008A (en) 1956-08-16 1957-08-14 Device for degassing and purifying hydraulic liquid of a hydraulic power system

Country Status (2)

Country Link
US (1) US2959008A (de)
CH (1) CH360543A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394812A (en) * 1963-07-10 1968-07-30 Dynalectron Corp Hydraulic system conditioning apparatus
US3854905A (en) * 1972-04-24 1974-12-17 Rca Corp Storage system for two phase fluids
US4273509A (en) * 1979-04-23 1981-06-16 Kobe, Inc. Self-powered cleaning unit for a fluid pump
US4348864A (en) * 1979-04-17 1982-09-14 Kabushiki Kaisha Komatsu Seisakusho Tank assembly for hydraulic system
FR2506627A1 (fr) * 1981-05-26 1982-12-03 Bertin & Cie Separateur compact gaz-liquide
US5001901A (en) * 1988-10-04 1991-03-26 Sundstrand Corporation Hydraulic fluid circuit for full case hydraulic unit
US6063269A (en) * 1998-08-06 2000-05-16 Caterpillar Inc. Filtration apparatus for a hydraulic system
FR2827246A1 (fr) * 2001-07-13 2003-01-17 Bosch Gmbh Robert Circuit hydraulique de freinage muni d'une circulation particuliere du liquide de frein et son utilisation
ES2220164A1 (es) * 2001-01-25 2004-12-01 Robert Bosch Gmbh Instalacion de freno hidraulico para vehiculos y procedimiento para la deteccion de burbujas de gas en una instalacion de freno hidraulico para vehiculos.
US20110094384A1 (en) * 2009-10-23 2011-04-28 Mann Richard M A Moisture separation system and method of assembling the same
US20110266286A1 (en) * 2008-11-27 2011-11-03 Gustav Magenwirth Gmbh & Co. Kg Afterflow Reservoir for a Hydraulic Actuating Device and Hydraulic Actuating Device
US20150239497A1 (en) * 2012-09-10 2015-08-27 Trw Automotive Gmbh Fluid container in particular hydraulic tank for a motor pump unit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251664A (en) * 1936-06-20 1941-08-05 Francis W Davis Liquid circulating system
US2571932A (en) * 1946-03-16 1951-10-16 Olsson Bengt Apparatus for pumping viscou materials
US2753011A (en) * 1954-02-26 1956-07-03 United Aircraft Corp De-aerator and oil tank
US2757582A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Separation of gas and undesired particles from liquids
US2765867A (en) * 1952-06-19 1956-10-09 Stamicarbon Method of separating dispersed gas from a liquid
US2789655A (en) * 1953-08-03 1957-04-23 Ralph A Michael Magnetic dust traps or filters
US2811218A (en) * 1954-10-18 1957-10-29 Charles A Winslow Oil filter and air separator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251664A (en) * 1936-06-20 1941-08-05 Francis W Davis Liquid circulating system
US2571932A (en) * 1946-03-16 1951-10-16 Olsson Bengt Apparatus for pumping viscou materials
US2765867A (en) * 1952-06-19 1956-10-09 Stamicarbon Method of separating dispersed gas from a liquid
US2757582A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Separation of gas and undesired particles from liquids
US2789655A (en) * 1953-08-03 1957-04-23 Ralph A Michael Magnetic dust traps or filters
US2753011A (en) * 1954-02-26 1956-07-03 United Aircraft Corp De-aerator and oil tank
US2811218A (en) * 1954-10-18 1957-10-29 Charles A Winslow Oil filter and air separator

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394812A (en) * 1963-07-10 1968-07-30 Dynalectron Corp Hydraulic system conditioning apparatus
US3854905A (en) * 1972-04-24 1974-12-17 Rca Corp Storage system for two phase fluids
US4348864A (en) * 1979-04-17 1982-09-14 Kabushiki Kaisha Komatsu Seisakusho Tank assembly for hydraulic system
US4273509A (en) * 1979-04-23 1981-06-16 Kobe, Inc. Self-powered cleaning unit for a fluid pump
FR2506627A1 (fr) * 1981-05-26 1982-12-03 Bertin & Cie Separateur compact gaz-liquide
US5001901A (en) * 1988-10-04 1991-03-26 Sundstrand Corporation Hydraulic fluid circuit for full case hydraulic unit
US6063269A (en) * 1998-08-06 2000-05-16 Caterpillar Inc. Filtration apparatus for a hydraulic system
ES2220164A1 (es) * 2001-01-25 2004-12-01 Robert Bosch Gmbh Instalacion de freno hidraulico para vehiculos y procedimiento para la deteccion de burbujas de gas en una instalacion de freno hidraulico para vehiculos.
ES2220164B1 (es) * 2001-01-25 2006-02-16 Robert Bosch Gmbh Instalacion de freno hidraulico para vehiculos y procedimiento para la deteccion de burbujas de gas en una instalacion de freno hidraulico para vehiculos.
WO2003006296A1 (fr) * 2001-07-13 2003-01-23 Robert Bosch Gmbh Circuit hydraulique de freinage avec moyens de filtration.
FR2827246A1 (fr) * 2001-07-13 2003-01-17 Bosch Gmbh Robert Circuit hydraulique de freinage muni d'une circulation particuliere du liquide de frein et son utilisation
US20110266286A1 (en) * 2008-11-27 2011-11-03 Gustav Magenwirth Gmbh & Co. Kg Afterflow Reservoir for a Hydraulic Actuating Device and Hydraulic Actuating Device
US20110094384A1 (en) * 2009-10-23 2011-04-28 Mann Richard M A Moisture separation system and method of assembling the same
US8245383B2 (en) * 2009-10-23 2012-08-21 General Electric Company Moisture separation system and method of assembling the same
US20150239497A1 (en) * 2012-09-10 2015-08-27 Trw Automotive Gmbh Fluid container in particular hydraulic tank for a motor pump unit
US10308279B2 (en) * 2012-09-10 2019-06-04 Trw Automotive Gmbh Fluid container in particular hydraulic tank for a motor pump unit

Also Published As

Publication number Publication date
CH360543A (de) 1962-02-28

Similar Documents

Publication Publication Date Title
GB1312605A (en) Aerating device
GB1347775A (en) Method and apparatus for separating two liquids of different specific gravities from a mixture of said liquids
ES439900A1 (es) Perfeccionamientos en depositos compensadores para liquidos de refrigeracion.
US2962863A (en) Device for degassing pressure fluids of hydraulic power plants
CN205933295U (zh) 多功能小型循环机组
GB1396716A (en) Liquid seals
GB986143A (en) Improvements in combination heat exchanger and degasifier
SU803175A1 (ru) Перемешивающее устройство
GB984307A (en) Deaerating apparatus for liquids
US2876787A (en) Fluid treating method and apparatus
SU1082451A1 (ru) Устройство дл дегазации жидкостей гидросистем
GB1437058A (en) Pipetting apparatus
CN210216584U (zh) 一种真空泵用水箱
GB1139287A (en) Apparatus for separating mixed liquids
SU1097361A1 (ru) Установка дл получени и нагнетани газожидкостной смеси
CN209259803U (zh) 一种新型的dop废水预处理装置
SU1668741A1 (ru) Переливное устройство
GB868125A (en) Apparatus for removing air entrained in the driving medium of hydraulic motors
SU794261A1 (ru) Воздушно-гидравлическа установка
SU374963A1 (ru) Система питани гидротрансформатора
SU1742525A1 (ru) Гидротаран
RU156874U1 (ru) Узел разгрузки реагента
US2265084A (en) Refrigerating apparatus
SU432177A1 (ru) Установка для дистилляции
SU1707271A1 (ru) Насос