EP0061560A2 - Machine à engrenages (pompe ou moteur) - Google Patents

Machine à engrenages (pompe ou moteur) Download PDF

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Publication number
EP0061560A2
EP0061560A2 EP82100227A EP82100227A EP0061560A2 EP 0061560 A2 EP0061560 A2 EP 0061560A2 EP 82100227 A EP82100227 A EP 82100227A EP 82100227 A EP82100227 A EP 82100227A EP 0061560 A2 EP0061560 A2 EP 0061560A2
Authority
EP
European Patent Office
Prior art keywords
housing
gears
machine
pressure side
machine according
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Withdrawn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
EP82100227A
Other languages
German (de)
English (en)
Other versions
EP0061560A3 (fr
Inventor
Günter Wolff
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0061560A2 publication Critical patent/EP0061560A2/fr
Publication of EP0061560A3 publication Critical patent/EP0061560A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/603—Centering; Aligning

Definitions

  • the invention relates to a gear machine according to the preamble of the main claim.
  • the gears are given the possibility, by appropriate design or arrangement of the bearing bodies, to work their end faces into the housing recess on the low pressure side by chip removal (housing inlet) due to the pressure prevailing on the high pressure side.
  • chip removal housing inlet
  • This ensures good tightness between the high and low pressure sides along the outer circumference of the gear wheels.
  • the gear machine according to the invention with the characterizing features of the main claim has the advantage that an exact alignment of the parts before the housing inlet is not necessary or is self-evident, which greatly simplifies assembly.
  • the gear wheels also run in properly if the gear shafts are not arranged in radially movable bearing bodies, but also in fixed bearings, i.e. Bore holes that are formed in housing plates. A new housing inlet is easily possible after a long period of operation and disassembly of the machine.
  • FIG. 1 shows a cross section through a gear machine along I-I according to FIG. 2
  • FIG. 2 shows a section along II-II according to FIG. 1.
  • the gear machine has a middle housing part 10, which is closed on both sides by covers 11, 12.
  • a housing recess 13 is formed in the middle part 10 of the housing and is formed by two intersecting bores 13 ′, 13 ′′. It is therefore a so-called plate-type gear machine.
  • a through bore 30 running in the axial direction of the gearwheels is formed in the central housing part 10, a similar blind bore 31 is formed in the cover 12, that is to say also running parallel to the gearwheel axes. It has about the same diameter, but is offset from the bore 30 by the dimension c, which in turn corresponds approximately to the games a, b, and so offset to the outside that its central axis is further away from the axis of the gear shaft than the central axis of the Bore 30.
  • a spring element 32 is inserted, which for example consists of two cylindrical parts 33, 34 which lie in the bores 30 and 31 and a resilient middle part 35 connecting these parts Preloading the middle part 35, the endeavor to move the middle part 10 of the housing, when the housing parts are not yet screwed tight, with respect to the covers 11 and 12 so that it has its part on the saw side - see A in FIG. 2 - or with the sealing areas B. , C rests on the gear end faces.
  • the suction side is characterized by the bore 37, which penetrates into the housing recess 13 from one side of the housing and extends transversely to a straight line connecting the gear wheel centers.
  • a channel 38 running in the cover 11 leaves the housing recess 13.
  • the channel 38 therefore runs in the cover 11, since the hole in the cover 13 tion 30 lies.
  • the bore 30 is located in the middle between the axes of the gears, but laterally offset to these and in the pressure-side area.
  • the housing middle part is - as already mentioned - displaced by the spring element so that it rests with its sealing areas on the gear wheel end faces.
  • the housing parts are screwed tightly, and pressure medium is supplied under high pressure via the channel 38.
  • the gears are now slowly driven for the housing inlet, whereby they dig into the sealing areas B and C on the low-pressure side due to the action of the force K. This is possible due to the game b between the gear shafts and the bores that receive them.
  • the chips generated at the inlet are rinsed out with the pressure medium flowing through the bore 37.
  • the running-in process is ended after a certain running-in period.
  • the clearance a is necessary as a pre-assembly tolerance.
  • shaft journals of the gears can be arranged in conventional bearing bodies, which also have radial play in the holes assigned to them and are then displaced by spring elements that the gears are pressed against the low-pressure side of the housing area before the housing inlet.
EP82100227A 1981-03-28 1982-01-14 Machine à engrenages (pompe ou moteur) Withdrawn EP0061560A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3112470 1981-03-28
DE19813112470 DE3112470A1 (de) 1981-03-28 1981-03-28 Zahnradmaschine (pumpe oder motor)

Publications (2)

Publication Number Publication Date
EP0061560A2 true EP0061560A2 (fr) 1982-10-06
EP0061560A3 EP0061560A3 (fr) 1984-03-28

Family

ID=6128674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100227A Withdrawn EP0061560A3 (fr) 1981-03-28 1982-01-14 Machine à engrenages (pompe ou moteur)

Country Status (3)

Country Link
US (1) US4492544A (fr)
EP (1) EP0061560A3 (fr)
DE (1) DE3112470A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561721A1 (fr) * 1984-03-21 1985-09-27 Mitsubishi Heavy Ind Ltd Machine a fluide moteur du type a volute
WO1986005241A1 (fr) * 1985-02-27 1986-09-12 Gutag Innovations Ag Machine a deplacement positif, notamment pompe, et procede pour sa fabrication
EP0226352A1 (fr) * 1985-11-25 1987-06-24 The Garrett Corporation Pompe à engrenages

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU760694B2 (en) * 1998-10-01 2003-05-22 Dow Global Technologies Inc. Gear pump for pumping highly viscous fluids
CN104819152B (zh) * 2015-05-20 2017-09-15 合肥长源液压股份有限公司 镶联式齿轮油泵泵体

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691945A (en) * 1950-08-30 1954-10-19 Borg Warner Pressure loaded gear pump
US2824524A (en) * 1955-01-18 1958-02-25 New Prod Corp Gear pump with externally adjustable shroud
FR2091273A5 (fr) * 1971-05-06 1972-01-14 Plessey Handel Investment Ag
DE2257398A1 (de) * 1971-11-24 1973-06-20 Smiths Industries Ltd Verfahren zur herstellung einer zahnradpumpe
FR2324905A1 (fr) * 1975-09-19 1977-04-15 Retel J R Pompe a engrenages

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742862A (en) * 1953-03-09 1956-04-24 New Prod Corp Fluid pump
DE1553030A1 (de) * 1965-10-12 1975-06-19 Otto Eckerle Spiel- und verschleissausgleichende hochdruck-zahnradpumpe bzw. -motor
CH488927A (de) * 1967-04-18 1970-04-15 Hans Dipl Ing Molly Zahnradpumpe oder -motor
US3525579A (en) * 1969-03-03 1970-08-25 Chandler Evans Inc Gear pump having a mechanically supported movable element
DE2411492C2 (de) * 1974-03-11 1984-07-26 Robert Bosch Gmbh, 7000 Stuttgart Zahnradpumpe
US4266915A (en) * 1978-07-10 1981-05-12 Tyrone Hydraulics Inc. Gear pumps and motors
JPS55101786A (en) * 1979-01-26 1980-08-04 Kayaba Ind Co Ltd Construction of body bore in gear pump or motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691945A (en) * 1950-08-30 1954-10-19 Borg Warner Pressure loaded gear pump
US2824524A (en) * 1955-01-18 1958-02-25 New Prod Corp Gear pump with externally adjustable shroud
FR2091273A5 (fr) * 1971-05-06 1972-01-14 Plessey Handel Investment Ag
DE2257398A1 (de) * 1971-11-24 1973-06-20 Smiths Industries Ltd Verfahren zur herstellung einer zahnradpumpe
FR2324905A1 (fr) * 1975-09-19 1977-04-15 Retel J R Pompe a engrenages

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561721A1 (fr) * 1984-03-21 1985-09-27 Mitsubishi Heavy Ind Ltd Machine a fluide moteur du type a volute
WO1986005241A1 (fr) * 1985-02-27 1986-09-12 Gutag Innovations Ag Machine a deplacement positif, notamment pompe, et procede pour sa fabrication
US4789315A (en) * 1985-02-27 1988-12-06 Gutag Innovations Ag Positive displacement machine, more particularly pump, and method for fabricating such pump
EP0226352A1 (fr) * 1985-11-25 1987-06-24 The Garrett Corporation Pompe à engrenages

Also Published As

Publication number Publication date
EP0061560A3 (fr) 1984-03-28
DE3112470A1 (de) 1982-10-07
US4492544A (en) 1985-01-08

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19820114

AK Designated contracting states

Designated state(s): DE FR GB IT

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19840622

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WOLFF, GUENTER