US3002355A - Reservoir for hydraulic system - Google Patents

Reservoir for hydraulic system Download PDF

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Publication number
US3002355A
US3002355A US713199A US71319958A US3002355A US 3002355 A US3002355 A US 3002355A US 713199 A US713199 A US 713199A US 71319958 A US71319958 A US 71319958A US 3002355 A US3002355 A US 3002355A
Authority
US
United States
Prior art keywords
reservoir
fluid
tank
rams
pump
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
US713199A
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English (en)
Inventor
Richard F Brackin
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.)
Yale and Towne Manufacturing Co
Original Assignee
Yale and Towne Manufacturing Co
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 Yale and Towne Manufacturing Co filed Critical Yale and Towne Manufacturing Co
Priority to US713199A priority Critical patent/US3002355A/en
Priority to FR1205295D priority patent/FR1205295A/fr
Priority to DEY287A priority patent/DE1290100B/de
Application granted granted Critical
Publication of US3002355A publication Critical patent/US3002355A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86187—Plural tanks or compartments connected for serial flow
    • Y10T137/86212—Plural compartments formed by baffles

Definitions

  • This invention relates to a tank functioning as the reservoir for a hydraulic system, and more particularly, that form of 'hydraulic system found in load lifting assemblies, as for example, industrial trucks.
  • bafle in the hydraulic fiuid tank, the bafile being lmounted in a Vertical position and so formed that fiuid being by-passed or moving from the rams enters the tank at 'one side of the bafiie, the flud moving to the pump and rams being taken from the' other side of the bafiie.
  • This allows the flud while moving from one side of the bafile to the other to settle, to'lose its air bubbles and reduce its turbulence prior to movement toward the rams.
  • I have now conceived a tank construction that functions very eifectively in a hydraulic lifting system of the class described.
  • I provide substantially a closed passage from the inlet pipe of the tank to that pipe leading to the pump and rams. This means that the pipe coming into the tank from the by-pass valve, or from the rams, it in almost direct communication with the pipe leading from the tank to the pump and the rams.
  • I provide means whereby there is actually some interchange between the fiuid in the tank and the fiuid fiowng through the subistantially closed passage I have just described.
  • the interchange moreover, permits flow of fiuid from the substantially closed passage during the by-passing of the rams.
  • fiuid Will flow from the tank to the pump and thence to the rams or in by-pass relation to the rams.
  • the fiuid will then move back to the tank and in the tank will flow through the substantially closed passage toward the pipe leading to the pump.
  • sufiicient flud interchange in the tank for cooling of the fiuid, and any possible excess of flud flowing 'm the pipe coming into the tank will move into the tank.
  • my invention utilizes a relatively enlarged passage within the tank, one end of which is in communication with the inlet pipe leading from the bypass or rams.
  • the other end of this enlarged passage is in communication with the pipe leading to the pump and then to the rams, or in'the alternative, the pump and the by-pass valve.
  • the enlarged passage has openings through which communication may be had with the tank so that there can be some interchange between the fluid in the enlarged passage and the fiuid in the tank. Oibviously, therefore, there will be a flow of fluid into the enlarged passage, an interchange of fiuid and a further flow toward the pump.
  • FIG. 1 is an elevational view of a reservoir partly broken away to better illustrate my invention.
  • FIIC. 2 is a top plan view of thereservoir shown in FIG. 3 is a perspective view of the passage in comimunication with the inlet and outlet pipes within the from the reservoir through the outlet pipe 21.
  • An inlet pipe 20 passes through one of the side walls 11 and is directed downwardly towardsV the' bottom of the tank, and a suction or outlet pipe 21 passes upwardly from adjacent the bottom of the tank and through the top wall 16.
  • I provide an enlarged passage in the form of an inverted channel member 22 secured within the tank to the bottom wall 17.
  • this. passage or channel member communicates at one end with the inlet pipe 20 and at its other end with the outlet or suction pipe Zl.
  • the upper surfaceV of the inverted channel member is formed with an opening 24 for receiving the end of the pipe 20, and with a second opening 25 for receiving the end of the pipe 21.
  • my enlarged passage 22 provides an almost direct communication between the inlet pipe 20 and the outlet pipe 21 within the reservoir.
  • the turbulence in the fluid between the inlet and the Outlet pipes within the reservoir is greatly reduced and what little turbulence may exist is confined to the area within the inverted channel member, and does not disturb the fluid in the reservoir.
  • the openings 26 enable sufiicient fluid to flow from the reservoir through the passage means and into the outlet pipe 21.
  • the same openings permit some of the fluid entering the passage through the pipe 2h to pass into the reservoir. At all times, there is suflicient interchange of fluid between the passage member and the reservoir proper to prevent overheating of the fluid.
  • a hydraulic circulating system comprising, a hydraulic motor, a pump, a fluid reservoir, a high pressure line connecting the high pressure side of the pump with one side of the hydraulic motor, a low pressure line connecting the low pressure side of the pump with the other side of the hydraulic motor, said lines forming a closed circuit whereby the fluid flowing therethrough is not exposed to air, a portion of said low pressure line extending through said reservoir beneath the surface of the fluid in the reservoir, said portion being in the form of an invertedchannelmember secured to the bottom of the reservoir and having an inlet pipe at one end and an outlet pipe at the other end, said channel member forming a direct passage between said inlet and outlet pipes for the circulation of fluid in said circuit through said reservoir without causing turbulence of fluid in said reservoir outside of said channel member, said channel member having a plurality of small holes through the Wall thereof, said small holes being open at all times to facilitate passage of heat between the fluid flowing through said circuit and the fluid in the reservoir and to permit interflow of fluid between said circuit and the reservoir as necessary to co-rnpens
  • a hydraulic circulating system comprising, a hydraulic motor, a pump, a fluid reservoir, a high pressure line connecting the high pressure side of the pump with one side of the hydraulic motor, a low pressure line connecting the low pressure side of the pump with the other side of the hydraulic motor, said lines forming a closed circuit whereby the fluid flowing therethrough is not exposed to air, a portion of said low pressure line extending through said reservoir beneath the surface of the fluid in the reservoir, said portion being in the form of a passage member providing a Chamber having spaced inlet and outlet openings, said chamber forming a direct passage between said inlet and outlet openings for the circulation of fluid in said circuit through said reservoir without causing turbulence of fluid in said reservoir outside of said Chamber, said chamber having a plurality of small holes through the wall thereof, said small holes being open at all timesto facilitate passage of heat between the fluid flowing through said circuit and the fluid in the reservoir and to permit interflow of fluid between said circuit and the reservoir as necessary to compensate for changes in the volumetric requirements of the hydraulic system, and said outlet opening of said
  • a hydraulic circulating system comprising, a hydraulic motor, a pump, a fluid reservoir, a high pressure line connecting the high pressure side of the pump with one side of the hydraulic motor, a low pressure line connecting the low pressure side of the pump with the other side of the hydraulic motor, a bypass line connecting the high pressure line and the low pressure line for bypassing fluid around the hydraulic motor, valve means for closing said bypassing line, said lines forming closed circuits whereby the fluid flowing therethrough is not exposed to air, a portion of said low pressure line extending through said reservoir beneath the surface of the fluid in the reservoir, said portion being in the form of a passage member providing a chamber having spaced inlet and outlet openings, said chamber forming a direct pas- Sage between said inlet and outlet openings for the circulation of fluid in said circuits through said reservoir without causing turbulence of fluid in said reservoir outside of said Chamber, said Chamber having a plurality of small holes through .the wall thereof, said small holes being open 'at all times to facilit-ate passage of heat betwcnrthe flu

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Details Of Reciprocating Pumps (AREA)
US713199A 1958-02-04 1958-02-04 Reservoir for hydraulic system Expired - Lifetime US3002355A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US713199A US3002355A (en) 1958-02-04 1958-02-04 Reservoir for hydraulic system
FR1205295D FR1205295A (fr) 1958-02-04 1958-04-02 Réservoir pour système hydraulique
DEY287A DE1290100B (de) 1958-02-04 1958-05-09 Fluessigkeitsbehaelter fuer hydraulische Antriebe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US713199A US3002355A (en) 1958-02-04 1958-02-04 Reservoir for hydraulic system

Publications (1)

Publication Number Publication Date
US3002355A true US3002355A (en) 1961-10-03

Family

ID=24865188

Family Applications (1)

Application Number Title Priority Date Filing Date
US713199A Expired - Lifetime US3002355A (en) 1958-02-04 1958-02-04 Reservoir for hydraulic system

Country Status (3)

Country Link
US (1) US3002355A (fr)
DE (1) DE1290100B (fr)
FR (1) FR1205295A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065601A (en) * 1960-03-07 1962-11-27 Allis Chalmers Mfg Co Reservoir for hydraulic system of an engine driven vehicle
US4531368A (en) * 1983-12-19 1985-07-30 Deere & Company Reservoir for a multi-pump hydraulic system
US5085468A (en) * 1990-07-23 1992-02-04 Keith Billotte Vehicle storage tank headboard
EP0469417A1 (fr) * 1990-07-30 1992-02-05 Deere & Company Circuit hydraulique pour un véhicule
US6311724B1 (en) * 1998-02-04 2001-11-06 Key Plastics, Inc. Reservoir for power steering system
US20110135502A1 (en) * 2009-12-03 2011-06-09 Uwe Esch Hydraulic reservoir for hydraulic regenerative circuit
US20130240069A1 (en) * 2012-03-16 2013-09-19 Caterpillar, Inc. Hydraulic Fluid Tank

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354905A (en) * 1965-03-31 1967-11-28 Vehoc Corp Fluid distributor
US3638676A (en) * 1969-11-03 1972-02-01 Charles O Burch Inlet distributor for storage tanks
US4032265A (en) * 1974-07-19 1977-06-28 United States Steel Corporation Suction stabilizer for reciprocating pumps and stabilizing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979041A (en) * 1933-05-03 1934-10-30 Peter Pirsch And Sons Co Fire apparatus
US2242807A (en) * 1938-02-21 1941-05-20 Laplant Choate Mfg Co Inc Oil filter
US2251664A (en) * 1936-06-20 1941-08-05 Francis W Davis Liquid circulating system
US2316729A (en) * 1941-06-30 1943-04-13 Napler & Son Ltd D Tank for use in aircraft
US2326051A (en) * 1941-03-15 1943-08-03 Glenn L Martin Co Lubricating system
US2588778A (en) * 1944-12-15 1952-03-11 Tibeau Clement Oil tank hopper by-pass control
US2767736A (en) * 1953-03-25 1956-10-23 Frank P Lackinger Fluid pickup

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716544A (en) * 1929-06-11 Inlet fitting
DE1012256B (de) * 1953-04-04 1957-07-11 Miag Muehlenbau & Ind Gmbh OEltank fuer Hydraulik-Anlagen aller Art
GB750546A (en) * 1954-04-05 1956-06-20 Miller Fluid Power Company Improvements in or relating to apparatus for preventing churning and aeration of liquids in a hydraulic system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979041A (en) * 1933-05-03 1934-10-30 Peter Pirsch And Sons Co Fire apparatus
US2251664A (en) * 1936-06-20 1941-08-05 Francis W Davis Liquid circulating system
US2242807A (en) * 1938-02-21 1941-05-20 Laplant Choate Mfg Co Inc Oil filter
US2326051A (en) * 1941-03-15 1943-08-03 Glenn L Martin Co Lubricating system
US2316729A (en) * 1941-06-30 1943-04-13 Napler & Son Ltd D Tank for use in aircraft
US2588778A (en) * 1944-12-15 1952-03-11 Tibeau Clement Oil tank hopper by-pass control
US2767736A (en) * 1953-03-25 1956-10-23 Frank P Lackinger Fluid pickup

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065601A (en) * 1960-03-07 1962-11-27 Allis Chalmers Mfg Co Reservoir for hydraulic system of an engine driven vehicle
US4531368A (en) * 1983-12-19 1985-07-30 Deere & Company Reservoir for a multi-pump hydraulic system
EP0149800A1 (fr) * 1983-12-19 1985-07-31 Deere & Company Réservoir d'huile pour une installation hydraulique
US5085468A (en) * 1990-07-23 1992-02-04 Keith Billotte Vehicle storage tank headboard
EP0469417A1 (fr) * 1990-07-30 1992-02-05 Deere & Company Circuit hydraulique pour un véhicule
EP0469416A1 (fr) * 1990-07-30 1992-02-05 Deere & Company Tracteur avec verrouillage de différentiel opéré hydrauliquement
US6311724B1 (en) * 1998-02-04 2001-11-06 Key Plastics, Inc. Reservoir for power steering system
US20110135502A1 (en) * 2009-12-03 2011-06-09 Uwe Esch Hydraulic reservoir for hydraulic regenerative circuit
US8241010B2 (en) 2009-12-03 2012-08-14 Caterpillar Global Mining Llc Hydraulic reservoir for hydraulic regenerative circuit
US20130240069A1 (en) * 2012-03-16 2013-09-19 Caterpillar, Inc. Hydraulic Fluid Tank
US8960227B2 (en) * 2012-03-16 2015-02-24 Caterpillar Sarl Hydraulic fluid tank

Also Published As

Publication number Publication date
DE1290100B (de) 1969-02-27
FR1205295A (fr) 1960-02-02

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