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DE3338653A1 - Air filter for an internal combustion engine - Google Patents

Air filter for an internal combustion engine

Info

Publication number
DE3338653A1
DE3338653A1 DE19833338653 DE3338653A DE3338653A1 DE 3338653 A1 DE3338653 A1 DE 3338653A1 DE 19833338653 DE19833338653 DE 19833338653 DE 3338653 A DE3338653 A DE 3338653A DE 3338653 A1 DE3338653 A1 DE 3338653A1
Authority
DE
Germany
Prior art keywords
air filter
internal combustion
combustion engine
chairman
air
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Withdrawn
Application number
DE19833338653
Other languages
German (de)
Inventor
Heinz-Hermann Ing.(grad.) 3180 Wolfsburg Spies
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19833338653 priority Critical patent/DE3338653A1/en
Publication of DE3338653A1 publication Critical patent/DE3338653A1/en
Withdrawn legal-status Critical Current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
    • F02M35/10249—Electrical or electronic devices fixed to the intake system; Electric wiring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3005—Details not otherwise provided for
    • 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
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/021—Arrangements of air flow meters in or on air cleaner housings
    • 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
    • F02M35/10268—Heating, cooling or thermal insulating means
    • 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
    • F01P2050/00—Applications
    • F01P2050/30—Circuit boards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0414—Air temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/18—Packaging of the electronic circuit in a casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

For efficient cooling of the temperature-dependent components of the electronic control unit (8) of an internal combustion engine, the control unit (8) is incorporated into the air filter (1, 2) of the internal combustion engine so that its components to be cooled, for example a cooling element (11), lie in the path of the air flow. <IMAGE>

Description

AKTIENGESELLSCHAFTSHARED COMPANY

3180 Wolfsburg3180 Wolfsburg

K 3501/1702pt-hu-saK 3501 / 1702pt-hu-sa

LUFTFILTER FÜR EINE BRENNKRAFTMASCHINEAIR FILTER FOR A COMBUSTION ENGINE

Die Erfindung betrifft ein Luftfilter gemäß dem Oberbegriff des Patentanspruchs 1. Derartige Luftfilter dienen bekanntlich zur Filterung der den Arbeitsräumen der Brennkraftmaschine zuzuführenden Verbrennungsluft.The invention relates to an air filter according to the preamble of the patent claim 1. Such air filters are known to be used to filter the work rooms the combustion air to be supplied to the internal combustion engine.

Der Erfindung liegt die Aufgabe zugrunde, ein derartiges Luftfilter zugleich zur Lösung von Aufgaben heranzuziehen, die speziell bei Brennkraftmaschinen mit einem elektronischen Steuergerät, beispielsweise für eine Kraftstoffeinspritzung, Zündwinkelsteuerung oder Getriebesteuerung, auftreten.The invention is based on the object of such an air filter at the same time Use solution of tasks that are specifically used in internal combustion engines an electronic control unit, e.g. for fuel injection, Ignition angle control or transmission control occur.

Die erfindungsgemäße Lösung der Aufgabe besteht in den kennzeichnenden Merkmalen des Patentanspruchs 1, eine vorteilhafte Ausführungsform der Erfindung beschreibt der Unteranspruch.The inventive solution to the problem consists in the characterizing features of claim 1, an advantageous embodiment of the invention is described in the dependent claim.

Bekanntlich muß bei elektronischen Steuergeräten beispielsweisefür Kraftstoffeinspritzungen einer unzulässigen Erhitzung von Halbleiter-Bauelementen entgegengewirkt werden. Hierzu sind derartige Steuergeräte mit Kühlfahnen oder Kühlkörpern versehen, die an ihren bezüglich des Steuergeräts inneren Enden in wärmeleitender Verbindung mit empfindlichen Bauelementen stehen und so eine Kühlung derselben durch die Umgebungsluft sicherstellen. Durch die erfindungsgemäßen Maßnahmen wird diese Kühlwirkung intensiviert, indem die das Luft-It is known that in electronic control units, for example, for fuel injections impermissible heating of semiconductor components can be counteracted. For this purpose, such control devices with cooling flags or Provided heat sinks, which are at their inner ends with respect to the control unit in a thermally conductive connection with sensitive components and so one Ensure cooling of the same by the ambient air. By the invention Measures, this cooling effect is intensified by the air

srsitzender Vorstand: Dr. rer. pol. Carl H. Hahn, Vorsitzender - Horst Münzner, stellv. Vorsitzender ■ Claus Borgward · Karl-Heinz Briam Chairman of the Board: Dr. rer. pole. Carl H. Hahn, Chairman - Horst Münzner, Vice Chairman ■ Claus Borgward · Karl-Heinz Briam

as Aufsichtsrats: Prof. Dr. techn. Ernst Fiala · Dr. jur. Peter Frerk · Dr. jur. Wolfgang R. Habbel · Günter Hartwicti · Dr. rer. pol. Werner P. Scnmidt srl Gusta' Ratjen Dr. rer. pol. Rolf Selowsky Sitz der Gesellschaft: Wolfsburg Amtsgericht Wolfsburg HRB 215 he Supervisory Board: Prof. Dr. techn. Ernst Fiala Dr. jur. Peter Frerk Dr. jur. Wolfgang R. Habbel Günter Hartwicti Dr. rer. pole. Werner P. Scnmidt srl Gusta 'Ratjen Dr. rer. pole. Rolf Selowsky Seat of the company: Wolfsburg District Court Wolfsburg HRB 215

filter durchströmende Luft zur Kühlung ausgenutzt wird. Dies ermöglicht eine Verringerung der Abmessungen der erwähnten Kühlkörper bzw. bei Konstanz ihrer Abmessungen eine Senkung der Temperaturen an den temperaturempfindlichen Halbleiter-Bauelementen des Steuergeräts. Betrachtet man den bevorzugten Einsatzfall der Erfindung, nämlich bei der Antriebsmaschine eines Kraftfahrzeugs, so bietet die erfindungsgemäBe Integration des Steuergeräts in das Luftfilter den besonderen Vorteil, daß auch bei stehendem Fahrzeug (und laufendem Motor) eine gute Kühlung des Steuergeräts bzw. seiner empfindlichen Bestandteile durch eine Luftströmung gewährleistet ist.Air flowing through the filter is used for cooling. This enables a Reduction in the dimensions of the heat sinks mentioned or, if their dimensions remain constant, a reduction in the temperatures at the temperature-sensitive ones Semiconductor components of the control unit. If one considers the preferred application of the invention, namely in the prime mover of a motor vehicle, the inventive integration of the control device into the Air filter has the particular advantage that even when the vehicle is stationary (and when the vehicle is Motor) good cooling of the control unit or its sensitive components is guaranteed by an air flow.

Ein weiterer Vorteil der Erfindung ist darin zu sehen, daß eine Direktmessung von motorspezifischen Parametern, beispielsweise der Temperatur der angesaugten Luft, für die Auswertung im Steuergerät ohne Erfordernis längerer Leitungen zwischen Sensor und Steuergerät direkt in der Luftströmung erfolgen kann.Another advantage of the invention is that a direct measurement of engine-specific parameters, for example the temperature of the intake air, for evaluation in the control unit without the need for longer cables between sensor and control unit can take place directly in the air flow.

Abschließend sei auf die besonders günstige Raumausnutzung bei der Erfindung hingewiesen.Finally, the particularly favorable use of space in the invention pointed out.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand der Zeichnung erläutert, die perspektivisch ein Luftfilter für eine Fahrzeug-Brennkraftmaschine mit Kraftstoffeinspritzung wiedergibt.An embodiment of the invention is described below with reference to the drawing explains, in perspective, an air filter for a vehicle internal combustion engine with fuel injection.

Das Luftfilter besteht aus dem Oberteil 1 und dem Unterteil 2 (mit der Filterpatrone), wobei die Lufteinströmung in das Filter bei 3 und die Luftausströmung zur Brennkraftmaschine bei 4 angedeutet sind. Weitere Einzelheiten interessieren im Rahmen der Erfindung nicht.The air filter consists of the upper part 1 and the lower part 2 (with the filter cartridge), the air inflow into the filter at 3 and the air outflow to the internal combustion engine at 4. Interested in further details not within the scope of the invention.

Die beiden Teile 1 und 2 können mittels Federklammern 5 fest miteinander verbunden werden.The two parts 1 and 2 can be firmly connected to one another by means of spring clips 5 will.

Das Luftfilteroberteil 1 besitzt die von dem Flansch 6 umgebene seitliche öffnung 7, in die das Steuergerät 8 der elektronischen Kraftstoffeinspritzung der im übrigen nicht dargestellten Brennkraftmaschine gleichsam als Einschub eingeschoben werden kann; zur festen Halterung des Steuergeräts 8 durch Ver-The upper air filter part 1 has the lateral opening surrounded by the flange 6 7, into which the control unit 8 of the electronic fuel injection of the internal combustion engine, otherwise not shown, is inserted, as it were, as an insert can be; for securely holding the control unit 8 by means of

schraubung mit dem Flansch 6 dient der Flansch 9 am Steuergerät, der auch elektrische Anschlüsse 10 trägt.Screw connection with the flange 6, the flange 9 on the control unit, which also serves electrical connections 10 carries.

An seiner bezüglich der zeichnerischen Darstellung hinteren Seite besitzt das Steuergerät den Kühlkörper 11, der in an sich bekannter und daher nicht dargestellter Weise in wärmeleitender Verbindung mit temperaturempfindlichen Halbleiter-Bausteinen im Steuergerät 8 steht. Im eingesetzten Zustand des durch das Steuergerät 8 gebildeten Einschubs in das eigentliche Luftfilter ragt der Kühlkörper 11 unmittelbar in die Reinluftströmung im Luftfilter hinein, so daß eine intensive Kühlung des Kühlkörpers erfolgt, und zwar auch bei stillstehendem Fahrzeug, sofern die Brennkraftmaschine arbeitet. Zur Messung von Motorparametern, beispielsweise der Ansauglufttemperatur, kann direkt am Steuergerät 8 ein Sensor vorgesehen sein.On its rear side with regard to the graphic representation, the Control unit the heat sink 11, which is known per se and therefore not shown Way in thermally conductive connection with temperature-sensitive semiconductor components is in control unit 8. When the insert formed by the control device 8 is inserted into the actual air filter, the heat sink protrudes 11 directly into the clean air flow in the air filter, so that intensive cooling of the heat sink takes place, even when it is at a standstill Vehicle, provided the internal combustion engine is working. For measuring engine parameters, For example, the intake air temperature, a sensor can be provided directly on the control unit 8.

Claims (2)

AKTIENGESELLSCHAFTSHARED COMPANY 3180 Wolfsburg3180 Wolfsburg K 3501/1702pt-hu-saK 3501 / 1702pt-hu-sa PATENTANSPRÜCHEPATENT CLAIMS [ 1.) Luftfilter für eine Brennkraftmaschine mit einem elektronischen Steuergedadurch gekennzeichnet, daß in das Luftfilter (1,2) das Steuergerät (8) derart integriert ist, daß zu kühlende Bestandteile (11) desselben im Weg der Luftströmung liegen.[1.) Air filter for an internal combustion engine with an electronic control thereby characterized in that the control device (8) is integrated into the air filter (1,2) in such a way that components (11) to be cooled are in the way of the Air flow. 2. Luftfilter nach Anspruch 1, dadurch gekennzeichnet, daß das Steuergerät (8) als lösbarer Einschub in das Gehäuse des Luftfilters (1,2) ausgebildet ist.2. Air filter according to claim 1, characterized in that the control device (8) is designed as a detachable insert in the housing of the air filter (1,2). Vorsitzender ' Vorstand: Dr. rer. pol. Carl H. Hahn, Vorsitzender · Horst Münzner, stellv. Vorsitzender · Claus Borgward · Karl-Heinz Bna.·Chairman ' Board of Directors: Dr. rer. pole. Carl H. Hahn, Chairman · Horst Münzner, Deputy Chairman · Claus Borgward · Karl-Heinz Bna. · des Aufsichtsrats: Prot. Dr. techn. Ernst Fiala ■ Dr. jur. Peter Frerk · Dr. jur. Wollgang R. Hebbel · Günter Hartwich · Dr. rer pol. Werner P. Scirmc of the Supervisory Board: Prot. Dr. techn. Ernst Fiala ■ Dr. jur. Peter Frerk Dr. jur. Wollgang R. Hebbel Günter Hartwich Dr. rer pol. Werner P. Scirmc • " ' ~- ·" --1 "-" <·-'—·-'— ςίΐ» der Gesellschaft: Wolfsbura Amtsgericht Wollsburg HRB 21• "'~ - ·" - 1 "-"<·-'— · -'— ςίΐ »of the company: Wolfsbura District Court Wollsburg HRB 21
DE19833338653 1983-10-25 1983-10-25 Air filter for an internal combustion engine Withdrawn DE3338653A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833338653 DE3338653A1 (en) 1983-10-25 1983-10-25 Air filter for an internal combustion engine

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Application Number Priority Date Filing Date Title
DE19833338653 DE3338653A1 (en) 1983-10-25 1983-10-25 Air filter for an internal combustion engine

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221268A2 (en) * 1985-11-02 1987-05-13 VDO Adolf Schindling AG Arrangement comprising an air flow meter for an internal-combustion engine
EP0221267A2 (en) * 1985-11-02 1987-05-13 VDO Adolf Schindling AG Arrangement comprising an air flow meter for an internal-combustion engine
EP0222081A2 (en) * 1985-11-02 1987-05-20 VDO Adolf Schindling AG Arrangement incorporating an internal-combustion engine control
EP0222987A2 (en) * 1985-11-02 1987-05-27 VDO Adolf Schindling AG Arrangement comprising an air flow meter for an internal-combustion engine
EP0644326A1 (en) * 1993-09-17 1995-03-22 Hitachi, Ltd. Suction device for internal combustion engine
US5645029A (en) * 1993-11-08 1997-07-08 Hitachi, Ltd. Intake system for internal combustion engine
EP0801224A2 (en) * 1992-08-31 1997-10-15 Hitachi, Ltd. Air intake arrangement for internal combustion engine
EP0997632A1 (en) * 1998-10-28 2000-05-03 Rover Group Limited An air cleaner assembly
DE19952136A1 (en) * 1999-10-29 2001-05-03 Mann & Hummel Filter Intake system
USRE37269E1 (en) 1992-08-31 2001-07-10 Hitachi, Ltd. Air intake arrangement for internal combustion engine
EP1394401A2 (en) * 2002-09-02 2004-03-03 Denso Corporation Air intake module for engines
US6771501B2 (en) 2001-09-24 2004-08-03 Lucas Industries Limited Fire resistant electronic engine controller
DE10332946A1 (en) * 2003-07-19 2005-02-03 Daimlerchrysler Ag Induction device for combustion engine, has control device housing provided with air-in-flow channel joined to secondary induction channel
EP1520975A2 (en) * 2003-10-01 2005-04-06 Mann + Hummel Gmbh Air filter apparatus in the intake system of an internal combustion engine
KR100507144B1 (en) * 2002-06-18 2005-08-09 현대자동차주식회사 an ECU mounting structure of vehicles
WO2011110447A1 (en) * 2010-03-12 2011-09-15 Robert Bosch Gmbh Arrangement of an engine control unit on an internal combustion engine and engine system
DE102011055568A1 (en) * 2011-11-21 2013-05-23 Benteler Automobiltechnik Gmbh Pressure wave charger assembly for generation of charging pressure in internal combustion engine, has pressure wave charger, where electronic control device is provided for operating pressure wave charger
DE102015225926A1 (en) * 2015-12-18 2017-06-22 Robert Bosch Gmbh Air system for an internal combustion engine having a thermally connected to the intake duct power electronics of an electric auxiliary compressor arrangement

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221268A2 (en) * 1985-11-02 1987-05-13 VDO Adolf Schindling AG Arrangement comprising an air flow meter for an internal-combustion engine
EP0221267A2 (en) * 1985-11-02 1987-05-13 VDO Adolf Schindling AG Arrangement comprising an air flow meter for an internal-combustion engine
EP0222081A2 (en) * 1985-11-02 1987-05-20 VDO Adolf Schindling AG Arrangement incorporating an internal-combustion engine control
EP0222987A2 (en) * 1985-11-02 1987-05-27 VDO Adolf Schindling AG Arrangement comprising an air flow meter for an internal-combustion engine
EP0221267A3 (en) * 1985-11-02 1988-05-04 Vdo Adolf Schindling Ag Arrangement comprising an air flow meter for an internal-combustion engine
EP0222987A3 (en) * 1985-11-02 1988-05-04 Vdo Adolf Schindling Ag Arrangement comprising an air flow meter for an internal-combustion engine
EP0221268A3 (en) * 1985-11-02 1988-05-04 Vdo Adolf Schindling Ag Arrangement comprising an air flow meter for an internal-combustion engine
EP0222081A3 (en) * 1985-11-02 1989-08-30 VDO Adolf Schindling AG Arrangement incorporating an internal-combustion engine control
EP1103716A3 (en) * 1992-08-31 2001-10-10 Hitachi, Ltd. Air intake arrangement for internal combustion engine
USRE37269E1 (en) 1992-08-31 2001-07-10 Hitachi, Ltd. Air intake arrangement for internal combustion engine
EP0801224A2 (en) * 1992-08-31 1997-10-15 Hitachi, Ltd. Air intake arrangement for internal combustion engine
EP0801224A3 (en) * 1992-08-31 1998-04-15 Hitachi, Ltd. Air intake arrangement for internal combustion engine
EP0644326A1 (en) * 1993-09-17 1995-03-22 Hitachi, Ltd. Suction device for internal combustion engine
US5765524A (en) * 1993-11-08 1998-06-16 Hitachi, Ltd. Intake system for internal combustion engine
US5645029A (en) * 1993-11-08 1997-07-08 Hitachi, Ltd. Intake system for internal combustion engine
EP0997632A1 (en) * 1998-10-28 2000-05-03 Rover Group Limited An air cleaner assembly
DE19952136A1 (en) * 1999-10-29 2001-05-03 Mann & Hummel Filter Intake system
US6771501B2 (en) 2001-09-24 2004-08-03 Lucas Industries Limited Fire resistant electronic engine controller
KR100507144B1 (en) * 2002-06-18 2005-08-09 현대자동차주식회사 an ECU mounting structure of vehicles
EP1394401A2 (en) * 2002-09-02 2004-03-03 Denso Corporation Air intake module for engines
EP1394401A3 (en) * 2002-09-02 2004-12-22 Denso Corporation Air intake module for engines
DE10332946A1 (en) * 2003-07-19 2005-02-03 Daimlerchrysler Ag Induction device for combustion engine, has control device housing provided with air-in-flow channel joined to secondary induction channel
EP1520975A2 (en) * 2003-10-01 2005-04-06 Mann + Hummel Gmbh Air filter apparatus in the intake system of an internal combustion engine
DE10345684A1 (en) * 2003-10-01 2005-04-21 Mann & Hummel Gmbh Air filter system in the intake of an internal combustion engine
EP1520975A3 (en) * 2003-10-01 2010-03-10 Mann + Hummel Gmbh Air filter apparatus in the intake system of an internal combustion engine
WO2011110447A1 (en) * 2010-03-12 2011-09-15 Robert Bosch Gmbh Arrangement of an engine control unit on an internal combustion engine and engine system
DE102011055568A1 (en) * 2011-11-21 2013-05-23 Benteler Automobiltechnik Gmbh Pressure wave charger assembly for generation of charging pressure in internal combustion engine, has pressure wave charger, where electronic control device is provided for operating pressure wave charger
DE102015225926A1 (en) * 2015-12-18 2017-06-22 Robert Bosch Gmbh Air system for an internal combustion engine having a thermally connected to the intake duct power electronics of an electric auxiliary compressor arrangement

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: VOLKSWAGEN AG, 3180 WOLFSBURG, DE

8120 Willingness to grant licences paragraph 23
8139 Disposal/non-payment of the annual fee