DE4018620C2 - Supercharged diesel engine - Google Patents

Supercharged diesel engine

Info

Publication number
DE4018620C2
DE4018620C2 DE4018620A DE4018620A DE4018620C2 DE 4018620 C2 DE4018620 C2 DE 4018620C2 DE 4018620 A DE4018620 A DE 4018620A DE 4018620 A DE4018620 A DE 4018620A DE 4018620 C2 DE4018620 C2 DE 4018620C2
Authority
DE
Germany
Prior art keywords
charge air
crankcase
diesel engine
channel
exhaust gas
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 - Fee Related
Application number
DE4018620A
Other languages
German (de)
Other versions
DE4018620A1 (en
Inventor
Richard Bartels
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DE4018620A priority Critical patent/DE4018620C2/en
Publication of DE4018620A1 publication Critical patent/DE4018620A1/en
Application granted granted Critical
Publication of DE4018620C2 publication Critical patent/DE4018620C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10288—Air intakes combined with another engine part, e.g. cylinder head cover or being cast in one piece with the exhaust manifold, cylinder head or engine block
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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
    • F02B67/10—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 charging or scavenging apparatus
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Supercharger (AREA)

Description

Die Erfindung betrifft einen aufgeladenen Dieselmotor nach dem Oberbegriff des Anspruchs 1.The invention relates to a supercharged diesel engine according to the Preamble of claim 1.

Aus der DE-OS 38 24 346 ist ein gattungsgemäßer aufgeladener Dieselmotor bekannt, der ein in üblicher Machart ausgebildetes gegossenes Kurbelgehäuse in V-Bauart aufweist. Auf der einen Stirnseite der Brennkraftmaschine ist ein Abgasturbolader angeordnet, der die durch einen Lader verdichtete Luft durch eine Ladeluftleitung in einen auf der gegenüberliegenden Stirnseite des Dieselmotors angeordneten Ladeluftkühler leitet. Von dem Ladeluftkühler wird die abgekühlte Ladeluft in einen Ladeluftverteilkanal entlang einer Zylinderreihe geführt. Dabei sind sowohl die Ladeluftleitung als auch der Ladeluftverteilkanal als separat hergestellte Leitungen ausgebildet, die nebeneinanderliegend in dem V-Raum des Dieselmotors angeordnet sind.DE-OS 38 24 346 is a generic supercharged Known diesel engine, which is a conventional design cast crankcase in V-type. on the one An exhaust gas turbocharger is arranged on the front side of the internal combustion engine, the air compressed by a supercharger through a charge air line in one on the opposite end of the diesel engine arranged intercooler conducts. From the charge air cooler cooled charge air in a charge air distribution duct along a Row of cylinders guided. Both the charge air line and the charge air distribution duct is designed as separately manufactured lines, the side by side in the V-space of the diesel engine are arranged.

Aus der JP 57/24417 ist ein weiterer Dieselmotor bekannt, der ebenfalls ein gegossenes V-förmig ausgebildetes Kurbelgehäuse aufweist. Dabei sind in den V-Raum Abgasturbolader angeordnet und an den Stirnseiten Ladeluftwärmetauscher befestigt. Zudem ist eine Ladeluftverteilleitung in das Kurbelgehäuse eingegossen.Another diesel engine is known from JP 57/24417 also a cast V-shaped crankcase having. Exhaust gas turbochargers are arranged in the V-space attached to the front of the charge air heat exchanger. In addition, one The charge air distribution line is cast into the crankcase.

Aufgabe der Erfindung ist es, einen aufgeladenen Dieselmotor nach dem Oberbegriff des Anspruchs 1 zu schaffen, bei dem die Leitungen vom Abgasturbolader zum Ladeluftkühler beziehungsweise von dort zu den Zylinderköpfen möglichst platzsparend und die Zugänglichkeit zu anderen Teilen nicht beeinträchtigend angebracht sind.The object of the invention is a supercharged diesel engine to provide the preamble of claim 1, in which the lines from the exhaust gas turbocharger to the charge air cooler or from there the cylinder heads as space-saving as possible and the accessibility other parts are not impaired.

Diese Aufgabe wird entsprechend dem kennzeichnenden Teil des Anspruchs 1 gelöst.This task is performed according to the characteristic part of the Claim 1 solved.

Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen. Further refinements of the invention are as follows Description and the dependent claims.  

Die Erfindung wird nachstehend anhand eines in den beigefügten Abbildungen dargestellten Ausführungsbeispiels näher erläutert.The invention is illustrated below with the aid of one of the following Illustrated embodiment illustrated.

Fig. 1 zeigt schematisch ein Kurbelgehäuse eines Dieselmotors mit Abgasturbolader und Ladeluftkühler sowie die Luftführung hierbei entsprechend einem Schnitt in Längsrichtung der Kurbelwelle. Fig. 1 shows schematically a crankcase of a diesel engine with exhaust gas turbocharger and charge air cooler and the air flow here in accordance with a section in the longitudinal direction of the crankshaft.

Fig. 2 zeigt schematisch einen Schnitt des Dieselmotors von Fig. 1 senkrecht zur Längsachse der Kurbelwelle. Fig. 2 shows schematically a section of the diesel engine of Fig. 1 perpendicular to the longitudinal axis of the crankshaft.

Der dargestellte aufgeladene Dieselmotor umfaßt ein Kurbelgehäuse 1 mit einem Lagerdeckel 2 zur Aufnahme einer Kurbelwelle 3 und zwei Reihen von V-förmig zueinander angeordneten Zylindern 4, deren Kolben über nicht dargestellte Kurbeln die Kurbelwelle 3 in Drehung versetzen und deren Abgase einem Abgasturbolader 5 zum Aufladen von Ladeluft zugeführt werden. Der zwischen den beiden Zylinderreihen ausgebildete (im Schnitt V-förmige, siehe Fig. 2) V-Raum des Kurbelgehäuses 1 ist in einem untenliegenden (innenliegenden) Kanal 6 und einem obenliegenden (außenliegenden) Kanal 7 unterteilt. Der untenliegende Kanal 6 verbindet den Abgasturbolader 5 an einer Stirnseite des Kurbelgehäuses 1 mit einem Ladeluftkühler 8 an der anderen Stirnseite des Kurbelgehäuses 1. Hierbei sind an den Stirnseiten des Kurbelgehäuses 1 Konsolen 9 für den Abgasturbolader 5 und den Ladeluftkühler 8 vorgesehen, die jeweils eine Luftführung 10 vom beziehungsweise in den untenliegenden Kanal 6 aufweisen.The supercharged diesel engine shown comprises a crankcase 1 with a bearing cover 2 for receiving a crankshaft 3 and two rows of cylinders 4 arranged in a V-shape relative to one another, the pistons of which set the crankshaft 3 in rotation via cranks (not shown ) and the exhaust gases of which are used to charge an exhaust gas turbocharger 5 Charge air are supplied. The V space of the crankcase 1, which is formed between the two rows of cylinders (V-shaped in section, see FIG. 2), is subdivided into an underlying (internal) channel 6 and an upper (external) channel 7 . The channel 6 located below connects the exhaust gas turbocharger 5 on one end face of the crankcase 1 to a charge air cooler 8 on the other end face of the crankcase 1 . In this case, consoles 9 for the exhaust gas turbocharger 5 and the charge air cooler 8 are provided on the end faces of the crankcase 1 , each of which has an air duct 10 from or into the duct 6 below.

Der oben liegende Kanal 7 stellt den Verteilkanal für Ladeluft zu den Zylinderköpfen 11 der Zylinder 4 dar und ist über einen Rohrabschnitt 12 mit dem Ladeluftkühler 8 und über Austrittsöffnungen 13 mit den Zylinderköpfen 11 verbunden. Der Kanal 7 kann zwar (ebenso wie der untenliegende Kanal 6 zum Verbinden eines Abgasturboladers 5 für eine Zylinderreihe mit einem zugehörigen Ladeluftkühler 8) zum Verbinden eines von zwei Ladeluftkühlern 8 mit jeweils nur einer Reihe von Zylinderköpfen 11 in Längsrichtung unterteilt sein, jedoch wird ein einheitlicher Verteilkanal 7, der zu allen Zylinderköpfen 11 führt, bevorzugt.The channel 7 located at the top represents the distribution channel for charge air to the cylinder heads 11 of the cylinders 4 and is connected to the charge air cooler 8 via a pipe section 12 and to the cylinder heads 11 via outlet openings 13 . The channel 7 may (like the channel 6 below for connecting an exhaust gas turbocharger 5 for a cylinder bank with an associated intercooler 8 ) for connecting one of two intercoolers 8 with only one row of cylinder heads 11 each be divided in the longitudinal direction, but a more uniform one Distribution channel 7 , which leads to all cylinder heads 11 , preferred.

Das Kurbelgehäuse 1 hat zweckmäßig an beiden Stirnseiten gleiche Anschlußflächen für die Konsolen 9, so daß Ladeluftkühler 8 und Abgasturbolader 5 vertauschbar sind. Hierbei sind an beiden Enden des Kanals 7 Anschlußflansche 14 für den Rohrabschnitt 12 vorgesehen, von denen einer verdeckelt ist.The crankcase 1 expediently has the same connection surfaces for the brackets 9 on both end faces, so that the charge air cooler 8 and the exhaust gas turbocharger 5 are interchangeable. Here, 7 connecting flanges 14 for the pipe section 12 are provided at both ends of the channel, one of which is capped.

Auf diese Weise wird der V-Raum des Kurbelgehäuses 1 zweckmäßig genutzt und es werden Verbindungsleitungen an der Außenseite des Motors, die zu entsprechenden Aufbauten führen und den Zugang zu anderen Teilen beeinträchtigen können, vermieden.In this way, the V-space of the crankcase 1 is used expediently and connecting lines on the outside of the engine, which lead to corresponding structures and can impair access to other parts, are avoided.

Claims (4)

1. Aufgeladener mehrzylindriger Dieselmotor in V-Bauart mit einer Verbrennungsluftführung von mindestens einem Abgasturbolader (5) über mindestens einen Ladeluftkühler (8) zu Zylinderköpfen (11) von Zylindern (4), wobei der mindestens eine Abgasturbolader (5) an einer Stirnseite eines die Zylinder (4) aufnehmenden Kurbelgehäuses (1) und der mindestens eine Ladeluftkühler (8) an der anderen Stirnseite des Kurbelgehäuses (1) angeordnet sind und eine Ladeluftleitung und ein Ladeluftverteilkanal im V-Raum zwischen den Zylindern (4) angeordnet sind, dadurch gekennzeichnet, daß der V-Raum des Kurbelgehäuses (1) geschlossen und in zwei übereinanderliegende Kanäle (6, 7) unterteilt ist, von denen der untenliegende Kanal (6) als Ladeluftleitung den mindestens einen Abgasturbolader (5) mit dem mindestens einen Ladeluftkühler (8) verbindet und der obenliegende Kanal (7) der Verteilkanal für Ladeluft von dem mindestens einen Ladeluftkühler (8) zu den Zylinderköpfen (1) ist.1. Charged multi-cylinder V-type diesel engine with a combustion air duct from at least one exhaust gas turbocharger ( 5 ) via at least one charge air cooler ( 8 ) to cylinder heads ( 11 ) of cylinders ( 4 ), the at least one exhaust gas turbocharger ( 5 ) on one end face of a Cylinder ( 4 ) receiving crankcase ( 1 ) and the at least one charge air cooler ( 8 ) are arranged on the other end of the crankcase ( 1 ) and a charge air line and a charge air distribution channel are arranged in the V space between the cylinders ( 4 ), characterized in that that the V-space of the crankcase ( 1 ) is closed and divided into two channels ( 6 , 7 ) one above the other, of which the channel ( 6 ) below connects the at least one exhaust gas turbocharger ( 5 ) with the at least one charge air cooler ( 8 ) as charge air line and the overhead channel ( 7 ) of the distribution channel for charge air from the at least one charge air cooler ( 8 ) to de n cylinder heads ( 1 ). 2. Dieselmotor nach Anspruch 1, dadurch gekennzeichnet, daß an den Stirnseiten des Kurbelgehäuses (1) Konsolen (9) für den mindestens einen Abgasturbolader (5) beziehungsweise den Ladeluftkühler (8) vorgesehen sind, die eine Luftführung vom beziehungsweise in den untenliegenden Kanal (6) beinhalten.2. Diesel engine according to claim 1, characterized in that on the end faces of the crankcase ( 1 ) consoles ( 9 ) for the at least one exhaust gas turbocharger ( 5 ) or the charge air cooler ( 8 ) are provided, which guide air from or into the channel below ( 6 ) include. 3. Dieselmotor nach Anspruch 2, dadurch gekennzeichnet, daß das Kurbelgehäuse (1) an beiden Stirnseiten gleiche Anschlußflächen für die Konsole (9) aufweist.3. Diesel engine according to claim 2, characterized in that the crankcase ( 1 ) has the same connection surfaces for the console ( 9 ) on both end faces. 4. Dieselmotor nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß das gegossene Kurbelgehäuse (1) in einen untenliegenden Kanal (6) und einen obenliegenden Kanal (7) unterteilt ist.4. Diesel engine according to one of the preceding claims, characterized in that the cast crankcase ( 1 ) is divided into an underlying channel ( 6 ) and an overhead channel ( 7 ).
DE4018620A 1990-06-11 1990-06-11 Supercharged diesel engine Expired - Fee Related DE4018620C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4018620A DE4018620C2 (en) 1990-06-11 1990-06-11 Supercharged diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4018620A DE4018620C2 (en) 1990-06-11 1990-06-11 Supercharged diesel engine

Publications (2)

Publication Number Publication Date
DE4018620A1 DE4018620A1 (en) 1991-12-12
DE4018620C2 true DE4018620C2 (en) 1996-07-11

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ID=6408176

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4018620A Expired - Fee Related DE4018620C2 (en) 1990-06-11 1990-06-11 Supercharged diesel engine

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DE (1) DE4018620C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002132C2 (en) * 1995-07-21 1997-01-22 Waertsilae Diesel Stork Combustion engine mfg. method
WO1997010420A1 (en) * 1995-07-21 1997-03-20 Stork Wärtsilä Diesel B.V. Combustion engine
EP2511511B1 (en) * 2011-04-15 2016-05-11 Caterpillar Motoren GmbH & Co. KG Charge air guide element and internal combustion engine with a charge air guide element
CN113700547A (en) * 2021-09-17 2021-11-26 中国北方发动机研究所(天津) V type diesel engine intercooler integrates structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1576226A1 (en) * 1967-03-17 1970-04-09 Daimler Benz Ag Fluid-cooled supercharged internal combustion engine
GB1326503A (en) * 1971-04-27 1973-08-15 Semt Supercharged internal combustion engines
JPS5724417A (en) * 1980-07-21 1982-02-09 Mitsubishi Heavy Ind Ltd Gas supply and exhaust device of internal combustion engine
JPS6128719A (en) * 1984-07-17 1986-02-08 Yanmar Diesel Engine Co Ltd Supercharging device for v-type engine
DE3633405A1 (en) * 1986-10-01 1988-04-14 Man Nutzfahrzeuge Gmbh METHOD FOR OPERATING AN EXHAUST TRUBO-CHARGED, LOW-COMPRESSING MULTI-CYLINDER DIESEL INTERNAL COMBUSTION ENGINE
JP2766294B2 (en) * 1988-03-31 1998-06-18 マツダ株式会社 Engine supercharger
DE3824346A1 (en) * 1988-07-19 1989-12-07 Daimler Benz Ag Internal combustion engine with two cylinder banks

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