US2695566A - Pump, bushing graduated pressure responsive areas - Google Patents

Pump, bushing graduated pressure responsive areas Download PDF

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Publication number
US2695566A
US2695566A US163012A US16301250A US2695566A US 2695566 A US2695566 A US 2695566A US 163012 A US163012 A US 163012A US 16301250 A US16301250 A US 16301250A US 2695566 A US2695566 A US 2695566A
Authority
US
United States
Prior art keywords
pump
pressure
bushing
inlet
adjacent
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
US163012A
Other languages
English (en)
Inventor
James A Compton
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Priority to US163012A priority Critical patent/US2695566A/en
Priority to GB11135/51A priority patent/GB695743A/en
Priority to DE1951B0015024 priority patent/DE1049702B/de
Priority to FR1042996D priority patent/FR1042996A/fr
Priority to BE525358D priority patent/BE525358A/fr
Application granted granted Critical
Publication of US2695566A publication Critical patent/US2695566A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/20—Rotary pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/918—O-ring

Definitions

  • This invention relates to a pressure loaded pump, and more particularly toa pressure loadablehushing-for such a pump having a graduated pressure responsive motive :H ,i' ...1 11. I i. 1J5. .2! ,As is well knowm in a pressure loaded pump apart of the discharge'pressure is" applied: to fthdrear or-"motive surfaces of 'the axially movable pressure-loadablebusha51 ,:bu h l si h da' t l vf f up; aree'mployed as m a gea'r pumptto lirge he;;bush
  • the barrel portion of the bushing,--eomprising is provided with a I has an offset, cylindrical, raisedportion or boss on its ""'fo1'ward surface adapted to be received in the recess formed in the cover and to be sealed thereto by aseal'ing ringdisposed in a groove formed about'the periphery of the raised portion.
  • bushing assemblies 15 and 16 are essentially a As will
  • the barrel portion 22 of the bushing assembly is provided with an axially extending aperture 27 communicating at its right end with the aperture 24 formed in cover 23; however, the inner diameter of aperture 27 may be made somewhat less than the inner diameter of aperture 24 since it is desirable that the shaft 11 be journalled therein with a close, running fit.
  • An axial groove 28 extending from the right to left ends of this wall of axial aperture 27 in the barrel portion 22 ensures suitable lubrication of the gear shaft 11, spiral grooves 29 also formed in the side wall of aperture 27 and communicating with groove 28 facilitating distribution of fluid about the gear journal. It is not essential that groove 28 extend completely to the rear end of the aperture 27, but it may be terminated slightly before this point where desired.
  • the flange 32 extends radially outwardly substantially further than the flange 31 and its extended portion seats at its left side, as viewed in Fig. 1, on an annular shoulder 33 of the pump housing bore.
  • the body or barrel portion of the assembly is thus securely supported in the pump housing bushing receiving cavity 7 and is relatively immovable with respect thereto in the normal operation of the pump.
  • the right end surface of the large flange 32 as viewed in Fig. 1, has formed thereon a raised or protuberant portion or boss 34 which is received in the offset recess 25 formed in the cover member 23, the boss 34 being offset in similar manner.
  • the boss 34 is complementary to and fits closely into the recess 25 in telescopic relation.
  • discharge pressure is con municated to the offset primary motive surface area 46 of the cover 41 urging the cover to the right, as viewed in Fig. 4, into sealing relation with the associated pumping gears. Since the larger portion of the area 46 is disposed adjacent the outlet of the pump, the pressure loading force will be more effective against the gear side faces nearer the outlet of the pump. At the same time, however, inlet pressure is communicated to the oppositely offset, secondary motive surface area provided at the base of recess 44 and since the larger portion of this area is disposed adjacent the inlet of the pump, the cover will tend to move against the gear side face portions disposed nearer the inlet of the pump in response to inlet pressure.
  • the bushing assemblies have been described as generally cylindrical in configuration, this being the conventional pump bushing configuration. It will be understood, however, that the pres ent invention is equally adaptable to either curvilinear or angular constructions and similarly the recesses and bosses may have a curvilinear or angular configuration. Generally, however, the cylindrical configuration shown is more readily adaptable to mass production techniques.
  • an axially apertured bushing having a first motive surface eccentrically and substantially perpendicularly disposed with respect to the axis of said aperture and arranged to respond to pump inlet pressure to tend to move said bushing into sealing relation with said pumping gears, and a second motive surface eccentrically and substantially perpendicularly disposed with respect to the axis of said aperture and arranged to respond to pump discharge pressure to move said bushing in sealing relation with said pumping gears, said two motive surfaces being axially spaced from each other, said first motive surface having the larger portion of its area located adjacent the inlet side of said pump, said second motive surface having the larger portion of its area located adjacent the discharge side of said pump, said bushing including means permitting the areas of said first and second motive surfaces to be varied independently of each other.
  • said first and third surface areas being eccentrically disposed with respect to said second surface area and oppositely eccentrlcally disposed with respect to each other,

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
US163012A 1950-05-19 1950-05-19 Pump, bushing graduated pressure responsive areas Expired - Lifetime US2695566A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US163012A US2695566A (en) 1950-05-19 1950-05-19 Pump, bushing graduated pressure responsive areas
GB11135/51A GB695743A (en) 1950-05-19 1951-05-11 Improvements in or relating to rotary pumps and bushings therefor
DE1951B0015024 DE1049702B (de) 1950-05-19 1951-05-17 Zahnradpumpe
FR1042996D FR1042996A (fr) 1950-05-19 1951-05-18 Perfectionnements relatifs aux pompes et à leurs coussinets
BE525358D BE525358A (enrdf_load_stackoverflow) 1950-05-19 1953-12-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US163012A US2695566A (en) 1950-05-19 1950-05-19 Pump, bushing graduated pressure responsive areas

Publications (1)

Publication Number Publication Date
US2695566A true US2695566A (en) 1954-11-30

Family

ID=22588075

Family Applications (1)

Application Number Title Priority Date Filing Date
US163012A Expired - Lifetime US2695566A (en) 1950-05-19 1950-05-19 Pump, bushing graduated pressure responsive areas

Country Status (5)

Country Link
US (1) US2695566A (enrdf_load_stackoverflow)
BE (1) BE525358A (enrdf_load_stackoverflow)
DE (1) DE1049702B (enrdf_load_stackoverflow)
FR (1) FR1042996A (enrdf_load_stackoverflow)
GB (1) GB695743A (enrdf_load_stackoverflow)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756684A (en) * 1954-11-12 1956-07-31 Sier Bath Gear And Pump Co Inc Rotary gear-type pump
US2809592A (en) * 1954-01-13 1957-10-15 Cessna Aircraft Co Rotary pump or motor
US2816512A (en) * 1953-05-29 1957-12-17 Thompson Prod Inc Pressure loaded gear pump
US2817297A (en) * 1953-12-08 1957-12-24 Roper Corp Geo D Pressure loaded pump or motor
US2870719A (en) * 1955-10-04 1959-01-27 Thompson Prod Inc Bushing for pressure loaded gear pump having a tapered journal surface
US2871794A (en) * 1953-06-01 1959-02-03 Roper Ind Inc Gear pump or fluid motor
US2876705A (en) * 1953-05-29 1959-03-10 Thompson Prod Inc Pressure loaded gear pump
US2881704A (en) * 1953-10-08 1959-04-14 Thompson Prod Inc Pressure loaded pump construction
US2891483A (en) * 1956-04-13 1959-06-23 Thompson Ramo Wooldridge Inc Movable bushing for pressure loaded gear pumps
US2914344A (en) * 1955-04-06 1959-11-24 Union Carbide Corp Quick detachable safety connection between blowpipe body and stem
US2932254A (en) * 1955-05-02 1960-04-12 Plessey Co Ltd Gear pump
US2933047A (en) * 1956-11-05 1960-04-19 Borg Warner Pressure loaded pump
US2956512A (en) * 1957-05-02 1960-10-18 Robert W Brundage Hydraulic pump or motor
US2961970A (en) * 1955-10-04 1960-11-29 Thompson Ramo Wooldridge Inc Hollow pump gear for aircraft fuel pumps
US2986096A (en) * 1955-10-24 1961-05-30 Plessey Co Ltd Journal bearing
US3002464A (en) * 1958-03-17 1961-10-03 Clinton W Lee Rotary gear pump, bearings and sealing means therefor
US3008426A (en) * 1957-01-28 1961-11-14 Thompson Ramo Wooldridge Inc Gear fuel pump
US3041974A (en) * 1956-05-25 1962-07-03 Borg Warner Pumps
US3063378A (en) * 1961-01-17 1962-11-13 Gen Metals Corp Pump construction
US3173374A (en) * 1962-12-31 1965-03-16 Clark Equipment Co Bearing for pumps and motors
US3294028A (en) * 1964-12-23 1966-12-27 Borg Warner Pressure loaded gear pump
US3790316A (en) * 1970-11-28 1974-02-05 M Turolla Gear pump
US3961872A (en) * 1974-01-24 1976-06-08 Robert Bosch G.M.B.H. Gear machine with fluid-biased end face sealing elements
US20100316520A1 (en) * 2007-12-17 2010-12-16 Dirk Foerch Liquid pump
US20140144268A1 (en) * 2012-11-27 2014-05-29 Lyle Ward Hydrodynamic gear assembly
CN105202344A (zh) * 2015-10-21 2015-12-30 无锡惠山泵业有限公司 一种密封性强的机油泵
EP3306093A1 (en) * 2016-10-07 2018-04-11 Rolls-Royce PLC Gear pump bearing

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293022B (de) * 1955-10-24 1969-04-17 Plessey Company U K Ltd Lagerschmierung und -kuehlung bei einer Zahnradpumpe oder einem Zahnradmotor
GB1572467A (en) * 1977-02-01 1980-07-30 Hamworthy Hydraulics Ltd Gear pumps
GB8333929D0 (en) * 1983-12-20 1984-02-01 Ssp Pumps Rotary pumps
GB2169350B (en) * 1985-01-05 1989-06-21 Hepworth Plastics Ltd Gear pumps
GB2233712A (en) * 1989-07-13 1991-01-16 Dowty Hydraulic Units Ltd Rotary positive displacement hydraulic machines
US5417556A (en) * 1994-03-08 1995-05-23 Alliedsignal Inc. Bearing for gear pump
IT201700010437A1 (it) * 2017-01-31 2018-07-31 Casappa Spa Macchina volumetrica
FR3091317A1 (fr) * 2018-12-26 2020-07-03 Poclain Hydraulics Industrie Pompe hydraulique, couvercle et flasque destinés à équiper une telle pompe
CN115370950B (zh) * 2022-08-19 2024-01-16 西南石油大学 一种自发电转子输油泵主动供油润滑轴承系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1780109A (en) * 1927-05-11 1930-10-28 Vacuum Compressor Ab Rotary machine
US1972632A (en) * 1931-01-05 1934-09-04 Commercial Shearing Thrust plate for pumps
US2044873A (en) * 1933-11-21 1936-06-23 Cecil J Beust Rotary compressor
US2312655A (en) * 1941-05-22 1943-03-02 Pump Engineering Service Corp Pump
US2444165A (en) * 1943-08-16 1948-06-29 Borg Warner Pump with pressure bushing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1780109A (en) * 1927-05-11 1930-10-28 Vacuum Compressor Ab Rotary machine
US1972632A (en) * 1931-01-05 1934-09-04 Commercial Shearing Thrust plate for pumps
US2044873A (en) * 1933-11-21 1936-06-23 Cecil J Beust Rotary compressor
US2312655A (en) * 1941-05-22 1943-03-02 Pump Engineering Service Corp Pump
US2444165A (en) * 1943-08-16 1948-06-29 Borg Warner Pump with pressure bushing

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816512A (en) * 1953-05-29 1957-12-17 Thompson Prod Inc Pressure loaded gear pump
US2876705A (en) * 1953-05-29 1959-03-10 Thompson Prod Inc Pressure loaded gear pump
US2871794A (en) * 1953-06-01 1959-02-03 Roper Ind Inc Gear pump or fluid motor
US2881704A (en) * 1953-10-08 1959-04-14 Thompson Prod Inc Pressure loaded pump construction
US2817297A (en) * 1953-12-08 1957-12-24 Roper Corp Geo D Pressure loaded pump or motor
US2809592A (en) * 1954-01-13 1957-10-15 Cessna Aircraft Co Rotary pump or motor
US2756684A (en) * 1954-11-12 1956-07-31 Sier Bath Gear And Pump Co Inc Rotary gear-type pump
US2914344A (en) * 1955-04-06 1959-11-24 Union Carbide Corp Quick detachable safety connection between blowpipe body and stem
US2932254A (en) * 1955-05-02 1960-04-12 Plessey Co Ltd Gear pump
US2870719A (en) * 1955-10-04 1959-01-27 Thompson Prod Inc Bushing for pressure loaded gear pump having a tapered journal surface
US2961970A (en) * 1955-10-04 1960-11-29 Thompson Ramo Wooldridge Inc Hollow pump gear for aircraft fuel pumps
US2986096A (en) * 1955-10-24 1961-05-30 Plessey Co Ltd Journal bearing
US2891483A (en) * 1956-04-13 1959-06-23 Thompson Ramo Wooldridge Inc Movable bushing for pressure loaded gear pumps
US3041974A (en) * 1956-05-25 1962-07-03 Borg Warner Pumps
US2933047A (en) * 1956-11-05 1960-04-19 Borg Warner Pressure loaded pump
US3008426A (en) * 1957-01-28 1961-11-14 Thompson Ramo Wooldridge Inc Gear fuel pump
US2956512A (en) * 1957-05-02 1960-10-18 Robert W Brundage Hydraulic pump or motor
US3002464A (en) * 1958-03-17 1961-10-03 Clinton W Lee Rotary gear pump, bearings and sealing means therefor
US3063378A (en) * 1961-01-17 1962-11-13 Gen Metals Corp Pump construction
US3173374A (en) * 1962-12-31 1965-03-16 Clark Equipment Co Bearing for pumps and motors
US3294028A (en) * 1964-12-23 1966-12-27 Borg Warner Pressure loaded gear pump
US3790316A (en) * 1970-11-28 1974-02-05 M Turolla Gear pump
US3961872A (en) * 1974-01-24 1976-06-08 Robert Bosch G.M.B.H. Gear machine with fluid-biased end face sealing elements
US20100316520A1 (en) * 2007-12-17 2010-12-16 Dirk Foerch Liquid pump
US20140144268A1 (en) * 2012-11-27 2014-05-29 Lyle Ward Hydrodynamic gear assembly
CN105202344A (zh) * 2015-10-21 2015-12-30 无锡惠山泵业有限公司 一种密封性强的机油泵
EP3306093A1 (en) * 2016-10-07 2018-04-11 Rolls-Royce PLC Gear pump bearing

Also Published As

Publication number Publication date
BE525358A (enrdf_load_stackoverflow) 1956-05-25
DE1049702B (de) 1959-01-29
GB695743A (en) 1953-08-19
FR1042996A (fr) 1953-11-05

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