EP0059086A1 - Equipement auxiliaire rotatif pour un moteur à combustion interne - Google Patents
Equipement auxiliaire rotatif pour un moteur à combustion interne Download PDFInfo
- 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- Withdrawn
Links
Images
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)
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 (fr) | 1982-09-01 |
Family
ID=10519812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82300856A Withdrawn EP0059086A1 (fr) | 1981-02-19 | 1982-02-19 | Equipement auxiliaire rotatif pour un moteur à combustion interne |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0059086A1 (fr) |
BR (1) | BR8200938A (fr) |
GB (1) | GB2093530A (fr) |
Cited By (11)
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 (fr) * | 1996-01-30 | 1997-08-07 | Gentech Design Limited | Moteurs a combustion interne |
WO2001018361A1 (fr) * | 1999-09-03 | 2001-03-15 | Fev Motorentechnik Gmbh | Machine a combustion interne a pistons avec production d'une depression lors de l'aspiration d'air sans restricteur |
WO2004092588A1 (fr) * | 2003-04-16 | 2004-10-28 | O.M.P. Officine Mazzocco Pagnoni S.R.L. | Ensemble de pompes a huile et a vide pour un moteur de vehicule automobile |
WO2009088733A2 (fr) | 2007-12-31 | 2009-07-16 | Cummins, Inc. | Système de pompe à vide avec moyeu de ventilateur intégré |
CN103306799A (zh) * | 2013-06-26 | 2013-09-18 | 长城汽车股份有限公司 | 发动机中的泵 |
WO2014014637A1 (fr) * | 2012-07-19 | 2014-01-23 | Chrysler Group Llc | Ensemble pompe mixte et procédé d'utilisation |
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)
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)
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 |
-
1982
- 1982-02-19 EP EP82300856A patent/EP0059086A1/fr not_active Withdrawn
- 1982-02-19 BR BR8200938A patent/BR8200938A/pt unknown
- 1982-02-19 GB GB8204965A patent/GB2093530A/en not_active Withdrawn
Patent Citations (4)
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)
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 (fr) * | 1996-01-30 | 1997-08-07 | Gentech Design Limited | Moteurs a combustion interne |
US6189318B1 (en) | 1996-01-30 | 2001-02-20 | Gentech Design Limited | Internal combustion engines |
WO2001018361A1 (fr) * | 1999-09-03 | 2001-03-15 | Fev Motorentechnik Gmbh | Machine a combustion interne a pistons avec production d'une depression lors de l'aspiration d'air sans restricteur |
WO2004092588A1 (fr) * | 2003-04-16 | 2004-10-28 | O.M.P. Officine Mazzocco Pagnoni S.R.L. | Ensemble de pompes a huile et a vide pour un moteur de vehicule automobile |
WO2009088733A2 (fr) | 2007-12-31 | 2009-07-16 | Cummins, Inc. | Système de pompe à vide avec moyeu de ventilateur intégré |
EP2232079A2 (fr) * | 2007-12-31 | 2010-09-29 | Cummins Inc. | Système de pompe à vide avec moyeu de ventilateur intégré |
EP2232079A4 (fr) * | 2007-12-31 | 2015-04-01 | Cummins Inc | Système de pompe à vide avec moyeu de ventilateur intégré |
WO2014014637A1 (fr) * | 2012-07-19 | 2014-01-23 | Chrysler Group Llc | Ensemble pompe mixte et procédé d'utilisation |
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 |
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 |
---|---|
BR8200938A (pt) | 1983-01-04 |
GB2093530A (en) | 1982-09-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR IT SE |
|
17P | Request for examination filed |
Effective date: 19830204 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19840307 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: THISTLETON, JOHN STUART |