EP0059086A1 - Rotierende Hilfsgeräte für Brennkraftmaschinen - Google Patents

Rotierende Hilfsgeräte für Brennkraftmaschinen Download PDF

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Publication number
EP0059086A1
EP0059086A1 EP82300856A EP82300856A EP0059086A1 EP 0059086 A1 EP0059086 A1 EP 0059086A1 EP 82300856 A EP82300856 A EP 82300856A EP 82300856 A EP82300856 A EP 82300856A EP 0059086 A1 EP0059086 A1 EP 0059086A1
Authority
EP
European Patent Office
Prior art keywords
vacuum pump
pump
oil
combination according
shaft
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Withdrawn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
EP82300856A
Other languages
English (en)
French (fr)
Inventor
John Stuart Thistleton
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.)
Wabco Automotive UK Ltd
Original Assignee
Wabco Automotive UK Ltd
Clayton Dewandre Co Ltd
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 Wabco Automotive UK Ltd, Clayton Dewandre Co Ltd filed Critical Wabco Automotive UK Ltd
Publication of EP0059086A1 publication Critical patent/EP0059086A1/de
Withdrawn legal-status Critical Current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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06—Endless member is a belt

Definitions

  • This invention relates to ancillary rotary equipment for engines and, more particularly to water pumps, rotary exhausters, compressors and blowers or the like.
  • a water pump is fitted to petrol and diesel engines to circulate the cooling water and is commonly fitted to the front face of the crankcase and driven by a vee-belt from the engine crankshaft.
  • Vacuum pumps or exhausters which are used to give servo-boost to the vehicle braking system are becoming more important with the growing popularity of diesel engined vehicles which do not allow vacuum utilisation from the engine inlet manifold.
  • Rotary vane type pumps driven by a vee-belt from the engine crankshaft are a simple and reliable means of vacuum production. It is known to mount a rotary vane vacuum pump on the engine crankcase whereby supply of oil under pressure normally available from the supply to the engine main bearings, can be led via drillings in the flange directly to lubricate plain bearings supporting the pump rotor, and by means of leakage from the bearings into the pump chamber to lubricate and seal to vaned rotor.
  • the vacuum pump discharges together with the leakage oil directly to the engine sump, again via drillings in the flange mounting.
  • Plain bearings are preferred even for water pumps since they have a longer working life but because a separate oil supply, with its additional and vulnerable pipework cannot be justified particularly in compact engines, water pumps are generally fitted with twin ball-race bearings, which are more expensive than plain bearings and furthermore can be disadvantageous due to the finite life of the ball bearing units (to total failure) particularly if partial failure of the water seals allows water to wash away the lubricating grease.
  • a thirditem of ancillary equipment necessary for engines is an alternator, this also being driven by a V-belt pulley and mounted on the crankcase.
  • crankcase mountings are reduced to two and the number of vee-belt drives needed is also reduced to two. This is also true of the arrangement using a through drive alternator but only at the expense of complicated and vulnerable pipework.
  • Driving speeds for existing vacuum pumps and water pumps vary from engine speed to twice engine speed which means that there is no problem with regard to speed compatability in thecombination of the two pumps,-and higher speeds can be used advantageously to increase the output of both pumps.
  • This invention also has the advantage, that both units which previously were preferably both flange mounted, (but separately) on the engine crankcase, are disposed in a common housing and the single flange mounting can be designed for communication with the crankcase to service both units. Again the oil and air from the exhaust of the vacuum pump can be returned to the engine sump via the mounting flange. By this means, all vulnerable external pipework to service the vacuum pump is eliminated.
  • the present invention proposes the combination of the two items of ancillary equipment which can benefit from plain bearings so that the need for expensive ball bearings in the water pump is avoided altogether,without the need for external .pipework and the total number of plain bearings which in any event yield a longer working life, is reduced to two since the water pump and vacuum pump are mounted on a common shaft.
  • both the water pump rotor (11) and the vacuum pump rotor (13) turn in the same housing (10), the shaft being supported on bearings (8) and (7), fitted in the housing (10) and in the end cover (3).
  • the water pump rotor (11) rotates in a housing (16) which is shaped to promote the pumping action.
  • connection to the brake vacuum reservoir is through drilling (c), this passage alternatively including a non- return valve to prevent oil from the vacuum pump passing into the inlet line. Exhaust air and oil from the vacuum pump is returned to the engine sump through drilling (B).
  • the inlet and outlet ports are displaced circumferentially as is normal rotary vane vacuum pump practise.
  • the unit is normally driven by a vee-belt, the pulley (1) being of top-hat section to place the belt loads as near as possible to being central between the two bearings (7) and (8).
  • a form of torque transmission device is provided in the pulley hub, i.e. key to keyway, squared shaft or D-shaped shaft and held in place with a threaded nut or screw.
  • the pulley hub may be used as the mounting for the engine cooling fan at (12).
  • the vacuum pump rotor (13) is rigidly fixed to the shaft (2) either by interference fit, by the use of adhesive, or by the use of drive pins. This method of fixing is sufficient to take the thrust loads developed as well as the drive torque.
  • the four sliding vanes are shown carried in grooves which are tangential to the centre of rotation, the number of vanes in the rotor may vary for different pump requirements and the vanes may alternatively be carried in radial slots.
  • the axial clearance of the rotor (13) within the housing (10) is the minimum to ensure that, with tolerance variation, the rotor is always free to rotate.
  • the removable end cover (3) is restrained to be concentric with the main housing (10), in this case by the use of dowels at (15).
  • the cover is held by bolts at positions (17), these being of adequate dimensions and the end cover being made of sufficient rigidity to allow this limited clamping. Other bolting and dowelling positions can be used where space permits.
  • the end cover is preferably sealed to the main housing by the use of an '0' ring (4).
  • plain bearings (7) and (8) are used to support the rotor, these are supplied by oil through drillings at (A).
  • the oil supply passes through the end cover/main housing interface, leakage into the main vacuum pump chamber is permissable.
  • Spillage of oil from the bearings into the main vacuum pump chamber is used to seal and lubricate the vanes and rotor thrust faces. This may be augmented by oil flow through the additional drillings shown at (F).
  • the water pump seal (9) is of the spring loaded face seal type as conventionally used for engine water pumps, any leakage from this being drained to atmosphere through drilling at (D).
  • the water pump rotor (11) is mounted on shaft (2) which is shaped to ensure concentricity and provide transmission of the drive torque and allow for easy removal for servicing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP82300856A 1981-02-19 1982-02-19 Rotierende Hilfsgeräte für Brennkraftmaschinen Withdrawn EP0059086A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8105211 1981-02-19
GB8105211 1981-02-19

Publications (1)

Publication Number Publication Date
EP0059086A1 true EP0059086A1 (de) 1982-09-01

Family

ID=10519812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82300856A Withdrawn EP0059086A1 (de) 1981-02-19 1982-02-19 Rotierende Hilfsgeräte für Brennkraftmaschinen

Country Status (3)

Country Link
EP (1) EP0059086A1 (de)
BR (1) BR8200938A (de)
GB (1) GB2093530A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639944A1 (de) * 1985-11-27 1987-06-25 Barmag Barmer Maschf Baueinheit
DE3809566A1 (de) * 1988-03-22 1989-10-12 Kloeckner Humboldt Deutz Ag Antrieb von nebenaggregaten
WO1997028360A1 (en) * 1996-01-30 1997-08-07 Gentech Design Limited Internal combustion engines
WO2001018361A1 (de) * 1999-09-03 2001-03-15 Fev Motorentechnik Gmbh Kolbenbrennkraftmaschine mit unterdruckerzeugung bei drosselfreiem luftansaug
WO2004092588A1 (en) * 2003-04-16 2004-10-28 O.M.P. Officine Mazzocco Pagnoni S.R.L. Oil and vacuum pumps group for a motor vehicle engine
WO2009088733A2 (en) 2007-12-31 2009-07-16 Cummins, Inc. Fan hub integrated vacuum pump system
CN103306799A (zh) * 2013-06-26 2013-09-18 长城汽车股份有限公司 发动机中的泵
US20140023477A1 (en) * 2012-07-19 2014-01-23 Chrysler Group Llc Combination pump assembly and method of use
FR2993606A1 (fr) * 2012-07-20 2014-01-24 Peugeot Citroen Automobiles Sa Architecture de pompes pour moteur thermique et procede de commande des pompes a huile et a eau
WO2014072637A1 (fr) * 2012-11-12 2014-05-15 Peugeot Citroen Automobiles Sa Module de pompe a vide adaptable et compact pour moteur a combustion interne et moteur a combustion interne correspondant
DE102014212550B4 (de) * 2013-07-03 2017-09-07 Ford Global Technologies, Llc Brennkraftmaschine mit flüssigkeitsgekühltem Zylinderkopf und flüssigkeitsgekühltem Zylinderblock

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694536A (en) * 1986-12-15 1987-09-22 Townsend Engineering Company Compound pump mechanism for meat encasing machines and the like
GB2205611B (en) * 1987-06-09 1991-08-21 Austin Rover Group A pump assembly for a motor vehicle.
GB2239049B (en) * 1989-11-30 1993-11-24 Rover Group A pump assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662481A (en) * 1951-03-14 1953-12-15 Gilbert & Barker Mfg Co Priming means for centrifugal pumps
US3082694A (en) * 1960-05-24 1963-03-26 Ingersoll Rand Co Self-priming centrifugal pump
FR1352410A (fr) * 1963-03-28 1964-02-14 Auto Union Gmbh Bloc comprenant une pompe à huile de graissage et une pompe à eau de refroidissement
GB2026612A (en) * 1978-07-28 1980-02-06 Barmag Barmer Maschf Rotary positive-displacement fluid-machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662481A (en) * 1951-03-14 1953-12-15 Gilbert & Barker Mfg Co Priming means for centrifugal pumps
US3082694A (en) * 1960-05-24 1963-03-26 Ingersoll Rand Co Self-priming centrifugal pump
FR1352410A (fr) * 1963-03-28 1964-02-14 Auto Union Gmbh Bloc comprenant une pompe à huile de graissage et une pompe à eau de refroidissement
GB2026612A (en) * 1978-07-28 1980-02-06 Barmag Barmer Maschf Rotary positive-displacement fluid-machines

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639944A1 (de) * 1985-11-27 1987-06-25 Barmag Barmer Maschf Baueinheit
DE3809566A1 (de) * 1988-03-22 1989-10-12 Kloeckner Humboldt Deutz Ag Antrieb von nebenaggregaten
WO1997028360A1 (en) * 1996-01-30 1997-08-07 Gentech Design Limited Internal combustion engines
US6189318B1 (en) 1996-01-30 2001-02-20 Gentech Design Limited Internal combustion engines
WO2001018361A1 (de) * 1999-09-03 2001-03-15 Fev Motorentechnik Gmbh Kolbenbrennkraftmaschine mit unterdruckerzeugung bei drosselfreiem luftansaug
WO2004092588A1 (en) * 2003-04-16 2004-10-28 O.M.P. Officine Mazzocco Pagnoni S.R.L. Oil and vacuum pumps group for a motor vehicle engine
WO2009088733A2 (en) 2007-12-31 2009-07-16 Cummins, Inc. Fan hub integrated vacuum pump system
EP2232079A2 (de) * 2007-12-31 2010-09-29 Cummins Inc. Lüfternabenintegriertes vakuumpumpensystem
EP2232079A4 (de) * 2007-12-31 2015-04-01 Cummins Inc Lüfternabenintegriertes vakuumpumpensystem
US20140023477A1 (en) * 2012-07-19 2014-01-23 Chrysler Group Llc Combination pump assembly and method of use
WO2014014637A1 (en) * 2012-07-19 2014-01-23 Chrysler Group Llc A combination pump assembly and method of use
FR2993606A1 (fr) * 2012-07-20 2014-01-24 Peugeot Citroen Automobiles Sa Architecture de pompes pour moteur thermique et procede de commande des pompes a huile et a eau
WO2014072637A1 (fr) * 2012-11-12 2014-05-15 Peugeot Citroen Automobiles Sa Module de pompe a vide adaptable et compact pour moteur a combustion interne et moteur a combustion interne correspondant
FR2998002A1 (fr) * 2012-11-12 2014-05-16 Peugeot Citroen Automobiles Sa Module de pompe a vide adaptable et compact pour moteur a combustion interne et moteur a combustion interne correspondant
CN103306799A (zh) * 2013-06-26 2013-09-18 长城汽车股份有限公司 发动机中的泵
DE102014212550B4 (de) * 2013-07-03 2017-09-07 Ford Global Technologies, Llc Brennkraftmaschine mit flüssigkeitsgekühltem Zylinderkopf und flüssigkeitsgekühltem Zylinderblock

Also Published As

Publication number Publication date
GB2093530A (en) 1982-09-02
BR8200938A (pt) 1983-01-04

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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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Effective date: 19830204

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Effective date: 19840307

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Inventor name: THISTLETON, JOHN STUART