EP1108878A2 - Moteur à combustion interne avec un conduit d'admission divisé - Google Patents

Moteur à combustion interne avec un conduit d'admission divisé Download PDF

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Publication number
EP1108878A2
EP1108878A2 EP00125845A EP00125845A EP1108878A2 EP 1108878 A2 EP1108878 A2 EP 1108878A2 EP 00125845 A EP00125845 A EP 00125845A EP 00125845 A EP00125845 A EP 00125845A EP 1108878 A2 EP1108878 A2 EP 1108878A2
Authority
EP
European Patent Office
Prior art keywords
partition
channel
cylinder
flow
subchannel
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Withdrawn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
EP00125845A
Other languages
German (de)
English (en)
Other versions
EP1108878A3 (fr
Inventor
Peter Dr.-Ing. Wolters
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.)
FEV Europe GmbH
Original Assignee
FEV Motorentechnik GmbH and Co KG
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 FEV Motorentechnik GmbH and Co KG filed Critical FEV Motorentechnik GmbH and Co KG
Publication of EP1108878A2 publication Critical patent/EP1108878A2/fr
Publication of EP1108878A3 publication Critical patent/EP1108878A3/fr
Withdrawn legal-status Critical Current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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • F02F1/4242—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels with a partition wall inside the channel

Definitions

  • the distribution of the cargo mass over the Valve gap determines the formation of a vortex in the cylinder, can by throttling at least one of the subchannels ultimately the vortex formation and the vortex intensity can be controlled in the cylinder.
  • the degree of mixing the different To influence cargo components This ensures that the mass distribution on the upper and lower valve gap area can be influenced.
  • Will be a larger mass fraction passed through the upper valve gap area forms in the cylinder from a tumble, which the Can favorably affect combustion and, if desired, stable stratification between air-fuel and / or exhaust gas enables.
  • the vortex formation with the lower closed Subchannel also leads to favorable burning behavior at low engine loads (partial load). At At full load, on the other hand, no intensive eddies should be generated, i.e. both subchannels should be open.
  • first subchannel in connection with the fuel supply, for example in such a way that a fuel injector opens into this subchannel.
  • Sub-channel the fuel-air mixture through the overhead first subchannel and is primarily the one above lying valve gap area fed.
  • Charge mass increased, so that according to the increase in Gas flow through the second sub-channel the vortex formation is reduced in the cylinder.
  • the mixing of the Fuel-air mixture or the exhaust gas-fuel-air mixture to be influenced can be both intense Mixing (homogeneous mixture) as well as a strong one Layering of the mixtures can be achieved.
  • the construction allows it is also to introduce exhaust gas into at least one subchannel and depending on the throttling of the other Subchannel a more or less strong stratification of the exhaust-air-fuel mixture to achieve.
  • the invention is based on the object, a piston internal combustion engine of the type referred to above on the design of their gas exchange channels, especially the Gas inlet channels to improve.
  • a passage opening gas exchange channel has, which over at least a partial length by at least dividing a partition into at least two subchannels is at least for one subchannel in the direction of flow has running channel-shaped profiling.
  • Prefers is that the dividing plane defined by the partition essentially transverse to the axis of the cylinder is aligned.
  • Formation of the partitions offers the invention provided channel-shaped profiling the possibility the mass flow entering the cylinder space also across to profile its direction of flow, i.e. "Strands" with To create higher mass flow density, so that by the mass flow in question is shaped accordingly becomes.
  • a wavy cross-section of the partition has both for the molded partition, in particular for as a separate component, in particular as a separate Sheet metal part cast in the advantage that here the due to thermal expansion due to different Temperature changes occurring distance changes easily can be included and breaks in the partition, or a Removing the partition from the cast material is avoided.
  • the concept according to the invention is not based on a cast one or cast-in partition. Also at one subsequently cast as a sheet metal part, for example Slits in the channel side wall inserted partition Both the procedural advantages are given, however constructive due to different thermal expansions Problem solved.
  • Other features of the invention are from the subclaims and the description below refer to.
  • FIG. 1 is a partial section of a cylinder head 1 a piston internal combustion engine shown.
  • the piston fuel press is in the drawings described below each with an inlet valve 2 per cylinder, that opens and closes an inlet opening 3.
  • the inlet opening 3 is assigned to an inlet channel 4, which in the illustrated embodiment by a partition 5 in a first subchannel 4.1 and a second subchannel 4.2 is divided.
  • the partition 5 extends here their parting plane transverse to the axis 6 of the cylinder and ends with its end edge 7 either directly in front of the shaft 8 of the intake valve 2. As shown in Fig.
  • the partition but also in its end region with a recess 13 be provided, the shaft 8 of the inlet valve 2 laterally engages so that the end edges 7.1 of the thereby formed Partition tabs 5.1 to close to the area of the inlet opening 3 can be introduced.
  • the arrangement is basically also with several inlet valves applicable per cylinder.
  • two continuous parallel or mirror-symmetrical inlet channels provided for each inlet valve or an initially central one Channel part is divided into a fork and with two accordingly running parallel channels each up to the associated Introduced gas inlet valves.
  • the partition 5 also extends accordingly fork-shaped division down to the fork-shaped Parallel channels.
  • parallel channels is used in Connection with the invention is not strictly geometric Understood the meaning, but includes all designs in which inlet channels corresponding to several inlet valves assigned.
  • this opens into the first subchannel 4.1 not shown, but indicated by the arrow 10 Injection nozzle so that a fuel-air mixture through the sub-channel 4.1 is guided into the cylinder.
  • the sub-channel 4.2 is mixed with air, an exhaust gas-air mixture, an air-fuel mixture, an exhaust gas-air-fuel mixture or charged with recirculated exhaust gas, so that the mixing of the mixtures passed through the two subchannels at the earliest can take place from the confluence in the inlet area 9.
  • the subchannel 4.2 below is provided with a means 11 for Change in the free flow cross section, for example a throttle valve 11 provided depending on the desired load state of the piston internal combustion engine becomes.
  • the Shaft 8 of the inlet valve 2 for the inflowing mass flow as a "disturbing body" through which viewed in the direction of flow on its rear side, corresponding release vortices are induced become.
  • the Partition 5 a channel-shaped at least in the vicinity of the end edge 7
  • Profiling on, for example, formed by it can be that the end region is designed as a guide body 14 is, as shown in cross section according to FIG. 3 is.
  • the arrangement can be made so that the channel-shaped design only on that of the upper sub-channel 4.1 facing side of the partition 5 is arranged while the lower partition wall is smooth, because at full load and fully open subchannel 4.2 the influences the vortex of are less influential.
  • FIG. 4 shows a cross-sectional shape in a modification, in which the partition 5 with respect to both sub-channels 4.1 and 4.2 a wavy seen in cross section Has profiling that for the upper sub-channel 4.1 again leads to a channel structure that directs the air flow into the subchannel 4.1 essentially divided into two air flows passes both sides of the valve stem 8.
  • Both the embodiment according to FIG. 3 and the embodiment 4 can either, as in longitudinal section 1 shown, only over a partial length of Partition 5 or extend over the entire length the partition 5 extend.
  • the embodiment has the entire length of the partition 4 the advantage that it as a separate Component, for example as a separate sheet metal element inserted into the casting core and firmly attached to the gas inlet channel forming part of the cylinder head can be cast.
  • 4 as a cross section wave structure shown also offers a molded partition the benefits of balancing different thermal expansions due to surface temperature differences.
  • partition designs described above also use gas outlet channels if there is an improvement the flow of the exhaust gas in the manner of a flow rectifier should be effected, especially in the area the gas outlet channels significant temperature differences between the partition and the cooled, surrounding the outlet duct Area cylinder head can occur.

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)
EP00125845A 1999-12-16 2000-11-25 Moteur à combustion interne avec un conduit d'admission divisé Withdrawn EP1108878A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960626A DE19960626A1 (de) 1999-12-16 1999-12-16 Kolbenbrennkraftmaschine mit unterteiltem Gaseinlaßkanal
DE19960626 1999-12-16

Publications (2)

Publication Number Publication Date
EP1108878A2 true EP1108878A2 (fr) 2001-06-20
EP1108878A3 EP1108878A3 (fr) 2002-05-22

Family

ID=7932838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125845A Withdrawn EP1108878A3 (fr) 1999-12-16 2000-11-25 Moteur à combustion interne avec un conduit d'admission divisé

Country Status (4)

Country Link
US (1) US6478008B2 (fr)
EP (1) EP1108878A3 (fr)
JP (1) JP2001193469A (fr)
DE (1) DE19960626A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467075A1 (fr) * 2003-04-03 2004-10-13 Nissan Motor Co., Ltd. Système d'admission d'un moteur à combustion interne
EP1336750A3 (fr) * 2002-02-13 2005-04-20 Nissan Motor Company, Limited Dispositif d'aspiration d'air pour un moteur à combustion interne
FR2888288A3 (fr) * 2005-07-08 2007-01-12 Renault Sas Cloison de separation pour conduit d'admission de culasse realisee venue de matiere par moulage avec la culasse

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163284B4 (de) * 2000-12-27 2005-12-15 Hyundai Motor Company Verfahren zum Herstellen eines Variabel-Wirbelströmungs-Erzeugungs-Einlasskanals
DE10117510B4 (de) * 2001-04-07 2014-12-04 Volkswagen Ag Brennkraftmaschine mit Direkteinspritzung
DE10243659A1 (de) * 2002-09-19 2004-04-01 Bastra Dipl.-Ing. Otten Gmbh & Co. Verbrennungskraftmaschine
DE10260041A1 (de) * 2002-12-19 2004-07-15 Volkswagen Ag Trennblech für einen Gaswechselkanal einer Brennkraftmaschine und Verfahren zur Herstellung
US6886516B2 (en) 2002-12-20 2005-05-03 Nissan Motor Co., Ltd. Cylinder head of internal combustion engine and method of producing same
FR2849676B1 (fr) * 2003-01-07 2006-12-01 Renault Sa Culasse pour moteur diesel a injection directe comportant des moyens pour ameliorer le compromis "swirl-permeabilite"
US7051702B2 (en) 2003-04-03 2006-05-30 Nissan Motor Co., Ltd. Intake apparatus for internal combustion engine
JP3903942B2 (ja) 2003-04-03 2007-04-11 日産自動車株式会社 内燃機関の吸気装置
JP3829818B2 (ja) 2003-04-18 2006-10-04 日産自動車株式会社 内燃機関の吸気装置
EP1548263B1 (fr) 2003-10-20 2019-12-11 Nissan Motor Co., Ltd. Tôle de séparation pour canal d'admission et noyau en sable moulant le conduit d'admission et culasse
JP4330422B2 (ja) 2003-10-20 2009-09-16 日産自動車株式会社 鋳包み対象板部材、吸気ポート用の仕切り板、吸気ポート成形用砂中子およびシリンダヘッド
JP2005120995A (ja) 2003-10-20 2005-05-12 Nissan Motor Co Ltd 吸気ポート用の仕切り板、吸気ポート成形用砂中子およびシリンダヘッド
JP4172371B2 (ja) 2003-10-20 2008-10-29 日産自動車株式会社 シリンダヘッドの製造方法
JP2015155684A (ja) 2014-02-21 2015-08-27 トヨタ紡織株式会社 吸気ダクト
JP6576063B2 (ja) * 2015-03-17 2019-09-18 本田技研工業株式会社 吸気ポート形成用砂中子及びその製造方法と、シリンダヘッド用半製品
KR20160134905A (ko) * 2015-05-13 2016-11-24 현대자동차주식회사 엔진의 공기 유동성 개선 장치
DE102015009008A1 (de) * 2015-07-11 2017-01-12 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Gaszuführeinrichtung für einen Verbrennungsmotor und Verbrennungsmotor mit einer solchen Gaszuführeinrichtung
JP6823373B2 (ja) * 2016-02-24 2021-02-03 株式会社Ｓｕｂａｒｕ エンジン
KR101897360B1 (ko) * 2016-11-11 2018-09-13 현대자동차주식회사 차량의 흡기 조절 장치
JP6446085B2 (ja) * 2017-03-28 2018-12-26 株式会社Ｓｕｂａｒｕ 隔壁プレート
JP6994998B2 (ja) * 2018-03-29 2022-01-14 本田技研工業株式会社 エンジン
JP7481910B2 (ja) * 2020-06-03 2024-05-13 株式会社Subaru エンジン、および隔壁プレートの断面形状の設定方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918419A (en) * 1973-08-20 1975-11-11 Sr John Dolza Segregated lean-rich fed spark ignition engine
US4080938A (en) * 1974-11-13 1978-03-28 Toyota Jidosha Kogyo Kabushiki Kaisha Combustion apparatus for an internal combustion engine
WO1995017589A1 (fr) 1993-12-20 1995-06-29 Fev Motorentechnik Gmbh & Co Kommanditgesellschaft Moteur a piston a allumage par bougies, dont le sens d'admission du melange carburant-air peut etre modifie
DE19803867A1 (de) 1998-01-31 1999-08-05 Volkswagen Ag Verfahren zum Herstellen eines Zylinderkopfes einer Brennkraftmaschine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861376A (en) * 1973-11-19 1975-01-21 Carlyle M Ashley In-cylinder mixers for internal combustion engines
DE69303514T2 (de) * 1992-02-28 1996-11-28 Mitsubishi Motors Corp Brennkraftmaschine
JP3318359B2 (ja) * 1992-08-17 2002-08-26 ヤマハ発動機株式会社 エンジンの吸気制御装置
JP3451589B2 (ja) * 1997-03-28 2003-09-29 有限会社日高エンジニアリング 内燃機関の吸気装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918419A (en) * 1973-08-20 1975-11-11 Sr John Dolza Segregated lean-rich fed spark ignition engine
US4080938A (en) * 1974-11-13 1978-03-28 Toyota Jidosha Kogyo Kabushiki Kaisha Combustion apparatus for an internal combustion engine
WO1995017589A1 (fr) 1993-12-20 1995-06-29 Fev Motorentechnik Gmbh & Co Kommanditgesellschaft Moteur a piston a allumage par bougies, dont le sens d'admission du melange carburant-air peut etre modifie
DE19803867A1 (de) 1998-01-31 1999-08-05 Volkswagen Ag Verfahren zum Herstellen eines Zylinderkopfes einer Brennkraftmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1336750A3 (fr) * 2002-02-13 2005-04-20 Nissan Motor Company, Limited Dispositif d'aspiration d'air pour un moteur à combustion interne
EP1467075A1 (fr) * 2003-04-03 2004-10-13 Nissan Motor Co., Ltd. Système d'admission d'un moteur à combustion interne
US6918372B2 (en) 2003-04-03 2005-07-19 Nissan Motor Co., Ltd. Intake system of internal combustion engine
FR2888288A3 (fr) * 2005-07-08 2007-01-12 Renault Sas Cloison de separation pour conduit d'admission de culasse realisee venue de matiere par moulage avec la culasse

Also Published As

Publication number Publication date
US6478008B2 (en) 2002-11-12
EP1108878A3 (fr) 2002-05-22
US20020020389A1 (en) 2002-02-21
JP2001193469A (ja) 2001-07-17
DE19960626A1 (de) 2001-06-21

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