EP0305689A2 - Dispositif de lubification pour un moteur à piston alternatif - Google Patents

Dispositif de lubification pour un moteur à piston alternatif Download PDF

Info

Publication number
EP0305689A2
EP0305689A2 EP88111120A EP88111120A EP0305689A2 EP 0305689 A2 EP0305689 A2 EP 0305689A2 EP 88111120 A EP88111120 A EP 88111120A EP 88111120 A EP88111120 A EP 88111120A EP 0305689 A2 EP0305689 A2 EP 0305689A2
Authority
EP
European Patent Office
Prior art keywords
housing
oil
lubricating device
oil pump
crankshaft
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.)
Granted
Application number
EP88111120A
Other languages
German (de)
English (en)
Other versions
EP0305689B1 (fr
EP0305689A3 (en
Inventor
Peter Schmid
Hans Dipl.-Ing. Mezger
Dieter Dipl.-Ing. Nowak
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0305689A2 publication Critical patent/EP0305689A2/fr
Publication of EP0305689A3 publication Critical patent/EP0305689A3/de
Application granted granted Critical
Publication of EP0305689B1 publication Critical patent/EP0305689B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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
    • F01P1/00—Air cooling
    • F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Definitions

  • the invention relates to a lubricating device for a multi-cylinder reciprocating piston engine according to the preamble of claim 1.
  • a housing for a lubricating oil pump is formed in an end cover, which is flanged to the motor housing.
  • the lubricating oil pump and the gear wheel driving it are coaxial with the crankshaft.
  • the lubricating oil pump draws the oil from a reservoir and delivers it to the lubrication points of the engine via distribution channels and an oil filter, which is attached to the outer side surface of the front cover.
  • This lubrication device is probably well suited for a low-speed engine. In the case of a high-revving engine, considerable noise would be emitted by the oil pump housing formed in the flexible end cover.
  • the oil pump housing should be compact, dimensionally stable and easy to mount on the motor housing and the lubrication device should also be applicable for oil sump lubrication and dry sump lubrication.
  • the characteristic features of claim 1 serve to solve this problem. If the oil pump is closely enclosed by a housing which is composed of two housing parts which are centered and screwed together, a precisely fitting and stable mounting can be achieved for the pump wheel, so that the noise formation is minimal and noise radiation from a large front cover is avoided. A simple and safe installation is made possible by the oil pump housing with the oil pump and its bearing being designed as a preassembled unit. After mounting this unit on the motor housing, the inner part of the oil pump housing is centered and radially sealed in the motor housing, the outer housing lies sealed on the end face of the motor housing and is screwed to it.
  • Such a lubrication device is suitable both for oil sump lubrication, in which it sucks off oil from the crankcase, and for dry sump lubrication, in which a separate lubricating oil reservoir is provided.
  • a cylindrical oil filter is located centrally between the horizontally installed pressure pump and the suction pump parallel to it, the filter cartridge of which can be removed downwards.
  • the housing of the oil pumps and the oil filter are inserted into the outer contour of the magnesium-cast oil pump housing, the outer diameter of the filter housing being the thickness of the oil pump housing, the length of the filter housing and the height of the oil pump housing being approximately the same.
  • a regulator housing is cast on the top of the oil pump housing approximately flush with the filter housing, which contains a pressure regulator that can be removed upwards.
  • a crankshaft 1 mounted in the middle of a V-engine drives with its crankshaft gear 2 upwards the gearwheels 3 and 4 with which the control gear for the camshafts of the two cylinder rows 5 and 6 are driven. Downward, the crankshaft gear 2 meshes to the right with a gear 7, to the left with a gear 8, with which oil pumps are driven.
  • the gears 7 and 8 are mounted with needle bearings on bearing pins 9 and 10 which are fixed in the motor housing 11. At the end, the gears 7 and 8 carry coupling pieces 12 and 13. These work in a form-fitting manner together with coupling counterparts 14 and 15 and form plug-in couplings 16 and 17 with them, which, like Oldham couplings, can compensate for an axle offset.
  • the coupling piece 14 is attached on the end face to a shaft 18, with which a pressure pump 19 is driven and is mounted in two slide bearings of an oil pump housing 20.
  • the pressure pump 19, with which lubricating oil is conveyed to the bearing points of the V-engine, is a gear pump consisting of two meshing gears 21 and 22.
  • the gear 21 is on the shaft 18, the gear 22 on the one, which is also mounted in slide bearings of the oil pump housing 20 , parallel shaft 23 rotatably.
  • Another gear pump is driven and supported by the same shafts 18 and 23, which serves as a suction pump 24 for extracting lubricating oil from turbochargers 25.
  • two further suction pumps 26 and 27 are arranged coaxially with one another in the oil pump housing 20 for extracting lubricating oil from the engine housing 1.
  • gear pumps each consisting of two meshing gears, which are rotationally fixed on hollow shafts 28 and 29.
  • the hollow shaft 28 is driven via the coupling piece 15 attached to its end face. Both hollow shafts 28 and 29 are supported on both sides in slide bearings of the oil pump housing 20.
  • the oil pump housing 20 is composed of three housing parts which are cast from magnesium. It consists of an inner part 30, an inner part 30 'and an outer part 32 centered on them and screwed to them at a parting plane 31.
  • the inner parts 30, 30' are in the area of the pressure pump 19 and the two suction pumps 26, 27 in bores in the motor housing 11 centered and sealed by radial seals 33.
  • the outer part 32 lies against the end face 34 of the motor housing 11, is sealed against it with axial seals 35 and is fastened to the motor housing 11 by screws 36.
  • An oil filter 37 is arranged approximately midway between the two suction pumps 26, 27 and the pressure pump 19. Its cylindrical Filter housing 38 is integrated into the outer contour of the oil pump housing 20 in that its outer diameter is equal to the thickness of the oil pump housing 20 and its length is equal to the height of the oil pump housing 20. After loosening the filter cover 39, the filter cartridge can be pulled out downwards.
  • a regulator housing 40 which contains a pressure regulator for the lubricating oil and an oil channel for the central feeding of the lubricating oil into a central bore of the crankshaft 1.
  • An elastic bushing which is centered in an oil-receiving cap 41 of the crankshaft 1 and in the oil channel of the regulator housing 40, serves to connect the center bore to the oil channel.
  • support eyes 42 are cast on the outer part 32 of the oil pump housing, the bores 43 of which lie parallel and equidistant from the crankshaft 1.
  • the support eyes and the walls of the oil pump housing 20 are so rigid and torsionally rigid that they can absorb the weight of the engine and the dynamic inertia forces caused by it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtration Of Liquid (AREA)
EP88111120A 1987-09-04 1988-07-12 Dispositif de lubification pour un moteur à piston alternatif Expired - Lifetime EP0305689B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3729603 1987-09-04
DE19873729603 DE3729603A1 (de) 1987-09-04 1987-09-04 Schmiervorrichtung fuer einen hubkolbenmotor

Publications (3)

Publication Number Publication Date
EP0305689A2 true EP0305689A2 (fr) 1989-03-08
EP0305689A3 EP0305689A3 (en) 1989-08-16
EP0305689B1 EP0305689B1 (fr) 1991-09-11

Family

ID=6335221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111120A Expired - Lifetime EP0305689B1 (fr) 1987-09-04 1988-07-12 Dispositif de lubification pour un moteur à piston alternatif

Country Status (4)

Country Link
US (1) US4864988A (fr)
EP (1) EP0305689B1 (fr)
JP (1) JPS6483806A (fr)
DE (2) DE3729603A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775815A1 (fr) * 1995-11-21 1997-05-28 Mercedes-Benz Ag Support des auxiliaires pour un moteur à combustion interne
EP0881365A3 (fr) * 1997-05-30 1999-06-09 Vm Motori S.P.A. Construction pour un moteur a combustion interne
DE102018125876A1 (de) 2018-10-18 2020-04-23 Obrist Technologies Gmbh Hubkolbenmotor
WO2020254450A1 (fr) * 2019-06-18 2020-12-24 Vitesco Technologies GmbH Ensemble étages de pompe, pompe à engrenages extérieurs, utilisation d'un ensemble étages de pompe et transmission de véhicule

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921715A1 (de) * 1989-07-01 1991-01-10 Porsche Ag Vorrichtung zum antrieb zweier oelpumpen an einer hubkolben-brennkraftmaschine
JP3299526B2 (ja) * 1999-09-03 2002-07-08 本田技研工業株式会社 Ｍｇ合金製ケースにおける通し孔の閉鎖構造
DE10139267A1 (de) * 2001-08-09 2003-02-27 Porsche Ag Pumpeinrichtung für Schmiermittel einer Brennkraftmaschine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE313021C (fr) *
US1764078A (en) * 1924-10-22 1930-06-17 Waukesha Motor Co Oiling system
GB305016A (en) * 1928-01-28 1929-08-22 Marius Jean Baptiste Barbarou Arrangement for oil pumps upon aviation engines
FR1081478A (fr) * 1952-09-23 1954-12-20 Daimler Benz Ag Pompe à huile de lubrification avec commande à chaîne
GB1142899A (en) * 1966-08-30 1969-02-12 Kloeckner Humboldt Deutz Ag Improvements in or relating to internal combustion engines
US3407741A (en) * 1966-09-15 1968-10-29 Caterpillar Tractor Co Compact oil pump for internal combustion engines
DE6906618U (de) * 1969-02-20 1969-07-03 Porsche Kg Antrieb einer foerderpumpe, insbesondere der schmieroelpumpe fuer ein zwangsgeschmiertes geschwindigkeitswechselgetriebe.
CS169208B1 (fr) * 1974-01-24 1976-07-29
DE2836094C2 (de) * 1978-08-17 1983-07-14 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Anordnung einer Ölpumpe
DE3044253A1 (de) * 1980-11-25 1982-06-24 Bayerische Motoren Werke AG, 8000 München Brennkraftmaschine, insbesondere einreihige mehrzylinder-brennkraftmaschine
US4449491A (en) * 1981-01-30 1984-05-22 Honda Giken Kogyo Kabushiki Kaisha Lubricating device for internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775815A1 (fr) * 1995-11-21 1997-05-28 Mercedes-Benz Ag Support des auxiliaires pour un moteur à combustion interne
EP0881365A3 (fr) * 1997-05-30 1999-06-09 Vm Motori S.P.A. Construction pour un moteur a combustion interne
DE102018125876A1 (de) 2018-10-18 2020-04-23 Obrist Technologies Gmbh Hubkolbenmotor
DE102018125876B4 (de) 2018-10-18 2023-04-27 Obrist Technologies Gmbh Hubkolbenmotor
WO2020254450A1 (fr) * 2019-06-18 2020-12-24 Vitesco Technologies GmbH Ensemble étages de pompe, pompe à engrenages extérieurs, utilisation d'un ensemble étages de pompe et transmission de véhicule
US12049951B2 (en) 2019-06-18 2024-07-30 Vitesco Technologies GmbH Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmission

Also Published As

Publication number Publication date
DE3864778D1 (de) 1991-10-17
EP0305689B1 (fr) 1991-09-11
DE3729603A1 (de) 1989-03-16
JPS6483806A (en) 1989-03-29
US4864988A (en) 1989-09-12
EP0305689A3 (en) 1989-08-16

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