EP0466542B1 - Zylindergehäuse für eine Maschine mit Dampfabfuhr und Ölrückführleitungen - Google Patents

Zylindergehäuse für eine Maschine mit Dampfabfuhr und Ölrückführleitungen Download PDF

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Publication number
EP0466542B1
EP0466542B1 EP91401710A EP91401710A EP0466542B1 EP 0466542 B1 EP0466542 B1 EP 0466542B1 EP 91401710 A EP91401710 A EP 91401710A EP 91401710 A EP91401710 A EP 91401710A EP 0466542 B1 EP0466542 B1 EP 0466542B1
Authority
EP
European Patent Office
Prior art keywords
cylinder block
cylinders
chamber
ducts
circuit
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.)
Expired - Lifetime
Application number
EP91401710A
Other languages
English (en)
French (fr)
Other versions
EP0466542A1 (de
Inventor
Jacques Dore
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Regie Nationale des Usines Renault
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
Regie Nationale des Usines Renault
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 Automobiles Peugeot SA, Automobiles Citroen SA, Regie Nationale des Usines Renault filed Critical Automobiles Peugeot SA
Publication of EP0466542A1 publication Critical patent/EP0466542A1/de
Application granted granted Critical
Publication of EP0466542B1 publication Critical patent/EP0466542B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • 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
    • 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
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face
    • 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 present invention relates to a cylinder block for any internal combustion engine, for example of the V-cylinder or in-line type.
  • cylinder blocks have been proposed in which internal conduits are made connecting the upper part of the block facing the cylinder head to lower compartments which separate the crankshaft bearings, in order to allow the evacuation of gases from the casing and the recycling of engine oil.
  • document FR-A-2 223 562 describes a cylinder block corresponding to the preamble of claim 1.
  • the internal conduits of the prior art are of complex shape, and have small gas and oil passage sections.
  • these conduits are obtained by machining or with the aid of foundry spindles or fragile molding cores, so that the cylinder blocks thus produced are expensive and insufficiently rigid.
  • the object of the present invention is to remedy these drawbacks by proposing a cylinder block with internal ducts for discharging the gases from the crankcase and for recycling the engine oil which are simple in shape and have large passage sections. , and which, in addition, can be produced at a lower cost, while increasing the rigidity of the block, thanks to the use of a unique and resistant molding core.
  • the subject of the invention is a cylinder block such as of the V-cylinder or in-line type, and comprising internal conduits which connect the upper part of the block to compartments separating crankshaft bearings, these conduits which allow the evacuation of the gases from the crankcase and the recycling of the engine oil being integrated into a one-piece foundry assembly,
  • this cylinder block being characterized in that said internal evacuation and recycling conduits open into a shaped chamber flattened in a plane substantially perpendicular to the axis of the cylinders and arranged near the lower compartments, said chamber which is crossed perpendicularly by the cylinders, and said internal conduits jointly forming an integrated circuit in said one-piece foundry assembly.
  • circuit includes gas passages from the casing which connect the aforementioned chamber to each of the lower compartments.
  • Another advantage of the invention resides in that internal oil recycling conduits extend substantially parallel to the cylinders and respectively connect the circuit chamber to a mounting plane of a cylinder head and to a lower face. opposite of the block, these conduits being offset with respect to each other.
  • the circuit chamber has the shape of a dihedral, with a central or edge part which is connected to conduits internal extending between the two lines of cylinders and opening onto a face of the block provided for mounting a gas treatment member of the casing.
  • Another advantage of the invention resides in that cooling chambers are formed around the cylinders for the circulation of a cooling liquid, the circuit chamber being located between the cooling chambers and the aforementioned lower compartments.
  • Figure 1 is a perspective view of a cylinder block according to the invention, for an internal combustion engine of the V-cylinder type.
  • Figure 2 is a sectional view of the cylinder block of Figure 1 and along the line II-II.
  • FIG. 3 illustrates in perspective the shape of the chamber and of the internal conduits which constitute the evacuation and recycling circuit according to the invention.
  • an engine M comprises in particular a cylinder block 1, a lower casing 2 and two cylinder heads 3a and 3b which are fixed to the cylinder block 1.
  • the engine M is of the type with 6 cylinders in V, that is to say comprises, on either side of a longitudinal plane XX 'two lines of three cylinders 41 and 42. It is also noted that lower compartments 5 which separate transverse walls 11 (only one of which is visible in FIG. 1 and on FIG. 2) in which crankshaft bearings 12 are formed are produced in the cylinder block 1 so as to open into a face forming a lower joint plane 13 against which the lower casing 2 is mounted.
  • Each cylinder 41, 42 opens on the one hand into the upper part 143 of the block 1 and on the other hand into one of the lower compartments 5.
  • the three aligned cylinders which are designated by the reference numeral 41 are produced on one side from the longitudinal plane XX 'and open onto a joint plane 141 of the upper part 143, on which plane the cylinder head 3a is mounted.
  • the other three cylinders 42 are produced in the block 1 on the other side of the plane XX ′ and lead to another joint plane 142 of the upper part 143, on which plane the cylinder head 3b is mounted.
  • a jacket can be inserted into each cylinder 41, 42, for example during the molding of the cylinder block 1.
  • coolant supply conduits produced in block 1 and which extend substantially parallel to a longitudinal direction of block 1.
  • the supply conduits 151 and 152 are respectively connected to cooling chambers 161 and 162 which are formed around each cylinder 41, 42, so as to allow circulation of coolant in the block 1.
  • Holes 171, 172 for communication of the cooling chambers 161 and 162 with the cylinder heads 3a and 3b open respectively in the joint planes 141 and 142.
  • the coolant is introduced into the block 1 via an opening 153 which opens into a transverse face 6 of the block 1 and which extends substantially parallel to the transverse walls described above.
  • FIG. 2 shows a longitudinal channel 173 for circulation of pressurized oil which extends in the longitudinal direction of the casing 2, along the lower compartments 5.
  • the cylinder block 1 also comprises internal conduits for discharging gas from the crankcase and for recycling the oil which will now be described, with further reference to FIG. 3.
  • the cylinder block 1 comprises internal pipes 7 for recycling engine oil and internal pipes 8 for evacuating the gases from the crankcase which open into a chamber 9, so as to form a circuit C foundry with block 1 and shown in perspective in Figure 3.
  • the chamber 9 of the circuit C is in the form of a flattened dihedron and extends near a top wall 51 of the lower compartments 5 of the block 1.
  • the chamber 9 is therefore constituted by two flattened and contiguous parts identified at 91 and 92 Each flattened part 91 and 92 of the chamber 9 is crossed substantially at right angles by the cylinders 41 and 42, respectively.
  • a central part 93 of the chamber 9 forms an edge which extends in the longitudinal direction of the block 1, right through the chamber 9.
  • Two evacuation conduits 8 of oblong section extend, between the cylinders 41, 42, from the upper part of the edge 93 to a central face 144 of the block 1 which is provided for mounting a member for treatment (not shown) of the crankcase gases.
  • the chamber 9 of the circuit C formed in the cylinder block 1 is located between the cooling chambers 161 and 162 and the lower compartments 5.
  • the recycling conduits 7 extend laterally from each free end of the flattened parts 91, 92 of the chamber 9, and consist of upper sections 7a and lower sections 7b.
  • each flattened part 91, 92 of the chamber 9 comprises five upper sections 7a and three lower sections 7b, of oblong section.
  • the upper sections 7a of the recycling conduits 7 are formed in the block 1 so as to extend substantially parallel to the cylinder lines 41 and 42.
  • These upper sections 7a are connected five to five, at their upper part, by channels 71 and 72 which open respectively in the joint planes 141 and 142.
  • each of the channels 71 and 72 is produced near a lateral flange 241, 242 of the joint planes 141 and 142 of block 1, and extend in a direction substantially parallel to the longitudinal direction of the housing.
  • the lower sections 7b of the recycling conduits 7 extend, from top to bottom along the side walls 52 of the compartments 5 which are parallel to the plane XX ', from one of the flattened parts 91, 92 of the chamber 9 to the joint plane 13 against which the lower casing 2 is mounted.
  • the upper sections 7a and the lower sections 7b of the recycling conduits 7 are offset from one another.
  • the lower sections 7b are substantially parallel to the plane XX ′ and therefore do not extend exactly in alignment with the upper sections 7a which are parallel to the cylinders 41, 42.
  • the lower sections 7b open into the chamber 9 at locations which are not located exactly opposite the ends of the upper sections 7a which open into each flattened part 91, 92 of the chamber 9.
  • Such a shift between the sections 7a and 7b makes it possible to "break" the flow of oil flow towards the lower casing 2, but also makes it possible to improve the evacuation of the gases by allowing the trapped gases in the oil of the lower casing 2 to escape through the lower sections 7b.
  • passages 94 which pass through the wall 51 to open into each compartment 5, so as to allow optimal evacuation of the gases from the casing using the conduits 8, and for example to a device for treating these gases. It is possible thanks to such passages 94 to connect the various compartments 5 for mounting the crankshaft, in order to improve the operation of the engine.
  • a cylinder block of inexpensive embodiment in which it is easy to produce conduits for evacuating gases and recycling oil by interposing a one-piece molding core of similar shape to the circuit visible in Figure 3 in the block casting mold.
  • a one-piece core is placed during the preparation of the mold between the cores making it possible to obtain the cooling chambers and the cores defining the crankshaft mounting compartments.
  • the cylinder block according to the invention has the advantage of being more rigid thanks to the different separation walls of the chambers and the conduits, which also has the result of improving the sound absorption of the cylinder block.
  • circuit C described above and provided for an engine M of the V-cylinder type can also be adapted to an engine of the in-line cylinder type, and that the number of conduits as well as the section of those -these can be adapted to the desired engine operating characteristics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Claims (5)

  1. Zylinderblock für irgendeinen Verbrennungsmotor, z.B. derjenigen Gattung mit Zylindern in V-Form oder in Reihe und mit inneren Leitungen (7,8), die den oberen Teil (143) des Zylinderblocks (1) mit Lager (12) der Kurbelwelle trennenden unteren Abteilen (5) verbinden, wobei diese Leitungen (7,8), die die Abfuhr der Gase aus dem Kurbelgehäuse und die Rückführung des Oels des Motors gestatten, in eine einstückige Formgusseinheit eingegliedert sind, dadurch gekennzeichnet, dass die besagten Abfuhrleitung (8) und Rückführungsleitungen (7,7a,7b) in eine, eine in einer zur Achse der Zylinder etwa senkrechten Ebene abgeflachte Gestalt aufweisende und in der Nähe der unteren Abteile (5) angeordnete Kammer (9) ausmünden, wobei die besagte Kammer (9), die durch die Zylinder (41,42) senkrecht durchsetzt wird und die besagten inneren Leitungen (7,7a,7b,8) gemeinsam einen in die besagte einstückige Fomrgusseinheit eingegliederten Kreislauf (C) bilden.
  2. Zylinderblock nach Anspruch 1, dadurch gekennzeichnet, dass der Kreislauf (C) Durchlässe (94) für die Gase des Kurbelgehäuses, die die vorgenannte Kammer (9) mit jedem der unteren Abteilen (5) verbinden, aufweist.
  3. Zylinderblock nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass innere Oelrückführungsleitungen (7,7a) sich etwa parallel zu den Zylindern (41,42) erstrecken und jeweils die Kammer (9) des Kreislaufes (C) mit einer Teilungsebene (141, 142) für die Anordnung eines Zylinderkopfes (3a,3b) und mit einer entgegengesetzten unteren Fläche (13) des Zylinderblocks (1) verbinden, wobei diese Leitungen in Bezug aufeinander versetzt sind.
  4. Zylinderblock nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass, bei einem Motor (M), dessen Zylinder (41,42) entlang zwei Reihen in V-Form angeordnet sind, die Kammer (9) des Kreislaufes die Gestalt eines Dieders (91,92) hat, mit einem mittleren Teil bzw. einer Randleiste (93), der bzw. die mit sich zwischen den beiden Reihen von Zylindern (41,42) erstreckenden und an einer für die Anordnung eines Gliedes zur Behandlung der Gase des Kurbelgehäuses vorgesehenen Fläche (144) des Kurbelgehäuses (1) mündenden inneren Leitungen (8) verbunden ist.
  5. Zylinderblock nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass Kühlkammern (161, 162) um die Zylinder (41,42) herum für den Umlauf einer Kühlflüssigkeit gebildet sind, wobei die Kammer (9) des Kreislaufes zwischen den Kühlkammern (161,162) und den vorgenannten unteren Abteilen (5) liegt.
EP91401710A 1990-07-11 1991-06-25 Zylindergehäuse für eine Maschine mit Dampfabfuhr und Ölrückführleitungen Expired - Lifetime EP0466542B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9008844 1990-07-11
FR9008844A FR2664654B1 (fr) 1990-07-11 1990-07-11 Carter cylindres de moteur avec circuit d'evacuation des gaz du carter et de recyclage d'huile.

Publications (2)

Publication Number Publication Date
EP0466542A1 EP0466542A1 (de) 1992-01-15
EP0466542B1 true EP0466542B1 (de) 1993-05-26

Family

ID=9398610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401710A Expired - Lifetime EP0466542B1 (de) 1990-07-11 1991-06-25 Zylindergehäuse für eine Maschine mit Dampfabfuhr und Ölrückführleitungen

Country Status (5)

Country Link
US (1) US5115791A (de)
EP (1) EP0466542B1 (de)
JP (1) JP3229340B2 (de)
DE (1) DE69100092T2 (de)
FR (1) FR2664654B1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231284A1 (de) * 1992-09-18 1994-03-24 Bruehl Eisenwerk Zylinderblock für eine Brennkraftmaschine
DE19608066C1 (de) * 1996-03-02 1997-06-05 Daimler Benz Ag Kurbelraumentlüftung für eine Brennkraftmaschine
US6123061A (en) * 1997-02-25 2000-09-26 Cummins Engine Company, Inc. Crankcase ventilation system
DE19809411A1 (de) * 1998-03-05 1999-09-16 Volkswagen Ag Brennkraftmaschine
DE19855562C1 (de) * 1998-12-02 2000-05-31 Mtu Friedrichshafen Gmbh Kurbelgehäuse
US6067952A (en) * 1998-12-10 2000-05-30 Brunswick Corporation Cylinder bore lubrication with residual oil
JP3867837B2 (ja) * 2000-12-20 2007-01-17 本田技研工業株式会社 内燃機関
DE10139045B4 (de) * 2001-08-08 2014-06-18 Bayerische Motoren Werke Aktiengesellschaft Kurbelgehäuse für eine Brennkraftmaschine, insbesondere mit zueinander geneigt angeordneten Zylinderreihen, vor allem V-Motor
US6702908B1 (en) * 2002-01-16 2004-03-09 Hamilton Sundstrand Corporation Method of making a cylinder block with unlined piston bores
JP4432899B2 (ja) * 2005-12-28 2010-03-17 トヨタ自動車株式会社 Ｖ型エンジンのｐｃｖシステム
US7258097B1 (en) * 2006-08-08 2007-08-21 International Engine Intellectual Property Company, Llc Crankcase for an internal combustion engine
DE102009016444B4 (de) 2009-04-04 2022-03-03 Daimler Ag Zylinderkurbelgehäuse und Verfahren zu dessen Herstellung
US8464696B2 (en) * 2010-05-17 2013-06-18 Ford Global Technologies, Llc Supercharged engine system
CN103511113B (zh) * 2013-10-08 2018-07-17 潍柴动力股份有限公司 一种发动机及其机体
FR3023591B1 (fr) * 2014-07-11 2019-04-26 Renault S.A.S. " moteur a combustion interne comportant un bloc-moteur muni d'un deflecteur d'huile "
DE102018002554A1 (de) * 2017-12-22 2019-06-27 Deutz Aktiengesellschaft Zylinderkurbelgehäuse mit Schürzen-Leiterstruktur

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1916522A (en) * 1930-01-04 1933-07-04 Gen Motors Corp V-8 engine
DE1964049A1 (de) * 1969-12-22 1971-07-15 Kloeckner Humboldt Deutz Ag Kurbelgehaeuse fuer Hubkolbenbrennkraftmaschinen
US3884201A (en) * 1973-03-27 1975-05-20 American Challenger Corp Marine engine
US3949719A (en) * 1975-01-27 1976-04-13 Kar Products Inc. Volumetric control valve unit for crankcase ventilation system
JPS59100910U (ja) * 1982-12-24 1984-07-07 本田技研工業株式会社 Ｖ型内燃機関用ブロ−バイガス還元装置
US4541399A (en) * 1983-03-03 1985-09-17 Mazda Motor Corporation Breather arrangement for internal combustion engine
US4603673A (en) * 1984-03-03 1986-08-05 Mazda Motor Corporation Breather device in internal combustion engine
JP2678294B2 (ja) * 1988-09-13 1997-11-17 マツダ株式会社 Ｖ型エンジンのブローバイガス還流装置

Also Published As

Publication number Publication date
JPH0586976A (ja) 1993-04-06
EP0466542A1 (de) 1992-01-15
JP3229340B2 (ja) 2001-11-19
DE69100092D1 (de) 1993-07-01
FR2664654A1 (fr) 1992-01-17
FR2664654B1 (fr) 1992-11-06
DE69100092T2 (de) 1993-11-04
US5115791A (en) 1992-05-26

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