EP0262597A2 - Bloc-moteur coulé pour un moteur à combustion interne, refroidi par liquide, avec ses cylindres disposés en V - Google Patents

Bloc-moteur coulé pour un moteur à combustion interne, refroidi par liquide, avec ses cylindres disposés en V Download PDF

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Publication number
EP0262597A2
EP0262597A2 EP87114005A EP87114005A EP0262597A2 EP 0262597 A2 EP0262597 A2 EP 0262597A2 EP 87114005 A EP87114005 A EP 87114005A EP 87114005 A EP87114005 A EP 87114005A EP 0262597 A2 EP0262597 A2 EP 0262597A2
Authority
EP
European Patent Office
Prior art keywords
housing
coolant
cylinder
end wall
machine housing
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
EP87114005A
Other languages
German (de)
English (en)
Other versions
EP0262597A3 (en
EP0262597B1 (fr
Inventor
Adolf Fischer
Helmut Wimmer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0262597A2 publication Critical patent/EP0262597A2/fr
Publication of EP0262597A3 publication Critical patent/EP0262597A3/de
Application granted granted Critical
Publication of EP0262597B1 publication Critical patent/EP0262597B1/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
    • 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
    • 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
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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 or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0012—Crankcases of V-engines
    • 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 or frames
    • 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
    • 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
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six
    • 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 or frames
    • F02F7/006—Camshaft or pushrod housings
    • F02F2007/0063—Head bolts; Arrangements of cylinder head bolts

Definitions

  • the invention is based on the preamble of the independent claim from DE-PS 25 53 291.
  • the cylinder housings arranged in a V-shape over the crankcase are relatively low inner side walls, which are connected to one another in one piece by a substantially horizontal top wall.
  • This top wall is connected to a central longitudinal wall running in the machine longitudinal direction, which is erected above the joint of the two foot plates inclined towards one another.
  • This central longitudinal wall has ribs projecting into the coolant spaces of the cylinder housings on both sides, which ribs are arranged essentially in planes of bearing frame walls arranged in the crankcase.
  • the ribs are connected with screw pipes for fastening the cylinder head.
  • the central longitudinal wall is also provided with openings for connecting the coolant spaces.
  • This configuration of the machine housing is complex in terms of casting technology. Furthermore, the central longitudinal wall on both sides results in relatively large coolant spaces in the cylinder housings with significant proportions in the area of the V space. In the case of a V engine with an air supply device arranged in the V space and exhaust gas guides arranged on the outer sides, there is accordingly a relatively large amount in the area of the machine housing which is cooler due to the air supply Coolant.
  • Another disadvantage of the known design of the machine housing is the fact that the coolant pump conveys the coolant directly into the relatively cool and relatively large portions of the coolant spaces located on both sides of the central longitudinal wall and thus different thermal stresses between the inside and outside of the V -shaped cylinder housings are possible.
  • part of the spiral housing of the coolant pump is integrated in the end wall in the region of a cylinder housing.
  • the document mentioned at the outset does not provide any information as to how the coolant pump can advantageously be arranged and designed in relation to an envelope gear arranged in front of the end wall for driving overhead control shafts.
  • the invention has for its object to provide a machine housing of the type described above with a modified coolant guide, which, in order to avoid unequal thermal stresses, allows hot zones of the machine housing to be acted upon preferentially, which furthermore enables smaller coolant spaces in the cylinder housings with a simple casting design of heavy-duty inner side walls of the cylinder housing and which, in the case of a V-type engine with overhead control shafts driven by a sheathing gear, permits a coolant pump which is independently accessible from the sheathing gear and is simple in design.
  • the coolant supply to the machine housings at the ends remote from the pump, together with a connecting line arranged in the V-space of the machine housing between the channels and the coolant pump, enables the coolant rooms to be freely designed the cylinder housings, the inner side walls of the cylinder housings being able to be formed free of openings in each case from the connection on the cylinder head side to the connection to the foot plates. In this way, loads from the cylinder head are transmitted through the side walls via the base plates in the bearing block walls of the crankcase with favorable stress distribution.
  • the side walls can further be moved close to the cylinders to achieve a small coolant jacket, the side walls being divided into self-stiffening associated arcuate sections without additional ribs in the cylinders.
  • screw pipes arranged at the joints for the cylinder head attachment achieve an advantageous transmission of force into the walls of the storage crankcase of the crankcase without additional reinforcements.
  • the channels serving to supply the coolant to the coolant spaces of the cylinder housing that they supply the coolant to relatively hot zones unthrottled at their mouths, while the coolant is supplied throttled to relatively cool zones.
  • This measure is used to achieve uniform thermal stresses in the machine housing.
  • the machine housing has a flange with an opening at both ends in the tip of the V-space.
  • the openings can be the arrangement of a separate line for guiding the coolant from the pump end to the gear connection end of the machine serve the house.
  • the channels serving the coolant supply into the coolant spaces of the cylinder housing are molded according to another feature of the invention in the end wall of the machine housing on the transmission connection side and are closed by a common cover which can be screwed to the corresponding flange between the cylinder housings.
  • the throttling devices provided at the mouths can be designed to relatively cool areas of the machine housing in a simple manner by means of simple casting techniques.
  • the flange at the pump end serves to relieve the mechanical strain on a relatively thin end wall of a gearbox provided for the enveloping gearbox with a separate cover.
  • part of a spiral housing of the coolant pump is integrated into the end wall, while the other part of the spiral housing is integrated in the end wall in the region of a cylinder housing in order to achieve a short overall length of the machine housing.
  • the coolant pump comes into close proximity, for example with an enveloping gear designed as an oil-lubricated chain drive.
  • the gear box in the area of the volute casing has a collar suitable for a plug-in arrangement of the coolant pump, and also a side wall spaced apart from the collar for tight support the gearbox cover.
  • both functional areas are advantageously accessible separately, with the plug-in coolant pump being sealed off from the collar by a known O-ring in order to simplify handling. This means that a functional area is also accessible without affecting the sealant in the other functional area.
  • a cast machine housing 1 for a liquid-cooled internal combustion engine 2 (not shown in more detail) with a V-shaped cylinder arrangement comprises a crankcase 3, which cooperates with cylinder housings 6 via foot plates 5 connected to cylinders 4.
  • the cylinder housings 6 are assigned cylinder heads (not shown) based on the crossflow principle, the air intake system of the internal combustion engine 2 being connected to the cylinder heads above the V-space of the machine housing 1.
  • the exhaust gas ducts of the cylinder heads of the internal combustion engine 2 are arranged on the outside.
  • the cylinder heads are equipped with control shafts which can be driven by an enveloping gear 7.
  • a separate gear housing 8 is provided for the enveloping gear 7.
  • a spiral housing 10 of a coolant pump 11 is partially integrated in a front end wall 9 of the machine housing 1 in the end region of a cylinder housing 6.
  • the other, final part 12 of the spiral housing 10 is formed in an end wall 13 of a gear box 14 of the gear housing 8.
  • the gear box 14 is detachably fastened to the end wall 9 via the end wall 13 corresponding essentially to the surface end wall 9 of the machine housing 1.
  • the gear box 14 with the outer end wall contours essentially adapted side walls 15 and a separate cover 16.
  • a pressure port 17 of the Integrated spiral housing 10 which corresponds to a connection opening 18 which is arranged in a flange 19 provided in the region of the tip of the V-shaped cylinder housing 6.
  • the cylinder housings 6 delimit coolant spaces 20 for the cylinders 4.
  • channels 21 are arranged at the other end of the machine housing, which is remote from the coolant pump 11, FIG. 2.
  • the channels 21 are shown as through a cover 22 concealable recesses or openings 23 are formed in the end wall 24 of the machine housing 1 on the transmission connection side.
  • a further flange 25 arranged near the end wall 24 on the transmission connection side in the region of the tip of the V-shaped cylinder housing 6 delimits the channels 21 or depressions 23 and has an inlet opening 26 for the channels 21.
  • coolant line 28 connecting the channels 21 and the inlet opening 26 with the pressure port 17 or the connection opening 18 associated therewith .
  • the coolant line 28 is delimited by the flanges 19 and 25 and the parts of the inner side walls 27 of the cylinder housings 6 which abut one another, whereby strips 29 arranged between the flanges 19 and 25 on the inner side walls 27 together with the flanges form a support for a closure cover 30 .
  • the coolant line can be a tube (not shown) connecting the connection opening 18 of the front flange 19 to the inlet opening 26 of the rear flange 25.
  • the orifices 31 of the channels 21 to the exhaust-side parts 20 ⁇ of the coolant spaces 20 of the cylinder housing 6 are unthrottled compared to the orifices 32 of the channels 21 of the air-side parts 20 ⁇ . This is a prerequisite for higher cooling created middle portions in the exhaust side parts 20 ⁇ of the coolant spaces 20.
  • the coolant pump 11 which has a radial impeller 31, is equipped with a housing 35 comprising a suction space and line connecting pieces 32, 33 and 34.
  • the coolant flowing back from the cylinder heads of the internal combustion engine 2 flows in via the line connector 32.
  • With 33 the pipe socket for the cooler flow is designated, while with 34 the pipe socket for the cooler return is occupied.
  • the aforementioned pipe connections 32, 33 and 34 can communicate with a mixing chamber 36 containing a thermostat (not shown) in a coolant-carrying manner.
  • the coolant pump 11 is arranged so that it can be plugged into the part 12 of the spiral housing 10 integrated in the end wall 13 of the transmission case 14.
  • the part 12 of the volute casing 10 has an opening 38, to which a collar 39 adjoins axially.
  • the collar 39 on the gearbox 14 cooperates with a cylindrical collar 40 of the coolant pump 11 over its inner circumference.
  • An O-ring arranged in the region of the collar 40 can serve to seal the plugged-in coolant pump 11.
  • a further side wall 41 is arranged on the gearbox 14, which has a sealing surface 42 on the end face for supporting the cover 16.
  • a separate seal is thus achieved with respect to the coolant pump 11 for the transmission housing 8 of the enveloping transmission 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP87114005A 1986-09-30 1987-09-25 Bloc-moteur coulé pour un moteur à combustion interne, refroidi par liquide, avec ses cylindres disposés en V Expired - Lifetime EP0262597B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3633261 1986-09-30
DE3633261A DE3633261C1 (de) 1986-09-30 1986-09-30 Gegossenes Maschinengehaeuse fuer fluessigkeitsgekuehlte Brennkraftmaschinen mit V-foermiger Zylinderanordnung

Publications (3)

Publication Number Publication Date
EP0262597A2 true EP0262597A2 (fr) 1988-04-06
EP0262597A3 EP0262597A3 (en) 1989-12-20
EP0262597B1 EP0262597B1 (fr) 1991-01-23

Family

ID=6310718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114005A Expired - Lifetime EP0262597B1 (fr) 1986-09-30 1987-09-25 Bloc-moteur coulé pour un moteur à combustion interne, refroidi par liquide, avec ses cylindres disposés en V

Country Status (5)

Country Link
US (1) US4777912A (fr)
EP (1) EP0262597B1 (fr)
JP (1) JPS63106353A (fr)
DE (1) DE3633261C1 (fr)
ES (1) ES2020668B3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505346B1 (fr) * 1991-03-20 1994-12-07 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Carter-bloc cylindre pour moteur à explosion avec refroidissement liquide
DE19851232A1 (de) * 1998-11-06 2000-05-11 Bayerische Motoren Werke Ag Guß-Maschinengehäuse für eine zwangsumlaufgekühlte Brennkraftmaschine mit Schmiersystem, insbesondere mit Zylindern in Reihenanordnung
DE19956358A1 (de) * 1999-11-24 2001-05-31 Bayerische Motoren Werke Ag Flüssigkeitsgekühlte Brennkraftmaschine mit zueinander geneigt angeordneten Zylinderbänken, insbesondere V-Motor

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701083C1 (en) * 1987-01-16 1988-05-11 Bayerische Motoren Werke Ag Engine housing of an internal combustion engine with banks of cylinders arranged in a V shape
US4907551A (en) * 1988-04-30 1990-03-13 Mazda Motor Corporation V-type engine
DE4015409C1 (fr) * 1990-05-14 1991-06-13 Audi Ag, 8070 Ingolstadt, De
DE9319055U1 (de) * 1993-12-11 1995-04-13 Fev Motorentech Gmbh & Co Kg Kolbenmaschine, insbesondere Kolbenbrennkraftmaschine mit versteiftem Motorblock mittels unterbrochener Rippen
JP3711700B2 (ja) * 1997-05-28 2005-11-02 日産自動車株式会社 内燃機関のカバー装置
GB2338514A (en) * 1998-06-20 1999-12-22 Cummins Engine Co Ltd I.c. engine cylinder block with optimizes stiffness
US6453868B1 (en) * 2000-12-15 2002-09-24 Deere & Company Engine timing gear cover with integral coolant flow passages
FR2908823B1 (fr) * 2006-11-20 2009-01-30 Renault Sas Moteur thermique de vehicule automobile comportant un conduit de degazage de pompe a eau
EP2131032A1 (fr) * 2008-06-06 2009-12-09 Perkins Engines Company Limited Pompe à fluides de moteur et carter de distribution
DE102010054084B4 (de) 2010-12-10 2023-04-06 Volkswagen Aktiengesellschaft Kühlmittelpumpe
KR101882047B1 (ko) * 2014-09-01 2018-07-25 현대중공업 주식회사 이중 배기통로 일체형 에어 챔버 모듈
FR3055150A1 (fr) * 2016-08-16 2018-02-23 Renault S.A.S Conduit externe d'une sortie d'une volute d'une pompe a fluide caloporteur d'un moteur thermique d'un vehicule

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE814685C (de) * 1948-10-02 1951-09-24 Christian Dr-Ing Schmid Kuehlmittelfuehrung bei fluessigkeitsgekuehlten Verbrennungsmotoren
DE2553291B2 (de) * 1975-11-27 1979-04-19 Bayerische Motoren Werke Ag, 8000 Muenchen Gegossenes Zylinder-Kurbelgehäuse für wassergekühlte V-Motoren
US4425881A (en) * 1981-10-02 1984-01-17 Aero Power Engine Manufacturing, Inc. Reciprocating engine air intake system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212281A (en) * 1978-08-14 1980-07-15 Ford Motor Company Low weight reciprocating engine
JPS566044A (en) * 1979-06-29 1981-01-22 Sanshin Ind Co Ltd Two-cycle engine
US4279224A (en) * 1979-09-20 1981-07-21 Szabo Robert C Convertible intake manifold
US4382427A (en) * 1981-10-02 1983-05-10 Aero Power Engine Manufacturing, Inc. Reciprocating engine cooling system
JPS5985347U (ja) * 1982-12-01 1984-06-09 日産自動車株式会社 内燃機関のシリンダブロツク
US4640236A (en) * 1985-09-25 1987-02-03 Kawasaki Jukogyo Kabushiki Kaisha Liquid-cooled cylinder assembly in internal-combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE814685C (de) * 1948-10-02 1951-09-24 Christian Dr-Ing Schmid Kuehlmittelfuehrung bei fluessigkeitsgekuehlten Verbrennungsmotoren
DE2553291B2 (de) * 1975-11-27 1979-04-19 Bayerische Motoren Werke Ag, 8000 Muenchen Gegossenes Zylinder-Kurbelgehäuse für wassergekühlte V-Motoren
US4425881A (en) * 1981-10-02 1984-01-17 Aero Power Engine Manufacturing, Inc. Reciprocating engine air intake system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505346B1 (fr) * 1991-03-20 1994-12-07 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Carter-bloc cylindre pour moteur à explosion avec refroidissement liquide
DE19851232A1 (de) * 1998-11-06 2000-05-11 Bayerische Motoren Werke Ag Guß-Maschinengehäuse für eine zwangsumlaufgekühlte Brennkraftmaschine mit Schmiersystem, insbesondere mit Zylindern in Reihenanordnung
DE19956358A1 (de) * 1999-11-24 2001-05-31 Bayerische Motoren Werke Ag Flüssigkeitsgekühlte Brennkraftmaschine mit zueinander geneigt angeordneten Zylinderbänken, insbesondere V-Motor

Also Published As

Publication number Publication date
JPS63106353A (ja) 1988-05-11
US4777912A (en) 1988-10-18
EP0262597A3 (en) 1989-12-20
ES2020668B3 (es) 1991-09-01
DE3633261C1 (de) 1987-05-21
JPH0323739B2 (fr) 1991-03-29
EP0262597B1 (fr) 1991-01-23

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