WO2016194149A1 - 多気筒内燃エンジンの吸気通路構造 - Google Patents
多気筒内燃エンジンの吸気通路構造 Download PDFInfo
- Publication number
- WO2016194149A1 WO2016194149A1 PCT/JP2015/065942 JP2015065942W WO2016194149A1 WO 2016194149 A1 WO2016194149 A1 WO 2016194149A1 JP 2015065942 W JP2015065942 W JP 2015065942W WO 2016194149 A1 WO2016194149 A1 WO 2016194149A1
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- WO
- WIPO (PCT)
- Prior art keywords
- base
- internal combustion
- combustion engine
- sleeve
- cylinder head
- Prior art date
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Classifications
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- 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
- F02M35/10072—Intake runners
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- 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
-
- 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
- F02M35/10078—Connections of intake systems to the engine
-
- 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
- F02M35/10078—Connections of intake systems to the engine
- F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
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- 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
- 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
- F02M35/10314—Materials for intake systems
- F02M35/10321—Plastics; Composites; Rubbers
-
- 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
- F02M35/1034—Manufacturing and assembling intake systems
- F02M35/10347—Moulding, casting or the like
Definitions
- the present invention relates to an intake passage structure of a multi-cylinder internal combustion engine.
- JP2007-056794A published in 2007 by the Japan Patent Office has a space between the heat insulation sleeve and the intake port wall surface. It is proposed that the temperature of the air will not be transmitted to the intake air.
- JP2009-052491A issued by the Japan Patent Office in 2009, further proposes to discharge the fuel accumulated in the outer space to the inside of the insulation sleeve by forming a through hole in the wall surface of the insulation sleeve.
- the operation of fixing the sleeve to the cylinder head is performed by facilitating the same number of sleeves as the number of cylinders and sequentially fixing the sleeves to the intake port of the cylinder head. It takes a lot of work.
- An object of the present invention is to reduce the trouble of fixing work for fixing the sleeve to the cylinder head.
- a sleeve structure including a plurality of sleeve bodies respectively fitted to the respective intake ports and a common base provided at one end of the plurality of sleeve bodies to the cylinder head, Achieve the above objectives.
- FIG. 1 is a perspective view of an essential part of an internal combustion engine according to a first embodiment of the present invention.
- FIG. 2 is a schematic perspective view of the sleeve structure according to the first embodiment of the present invention.
- FIG. FIG. 3 is a plan view of a cylinder head to which a sleeve structure according to the first embodiment of the present invention is fixed.
- FIG. 4 is FIG. 4 is a cross-sectional view of the cylinder head taken along line IV-IV in FIG.
- FIG. 5 is a plan view of a multi-cylinder internal combustion engine in which an intake manifold is connected via a sleeve structure according to the first embodiment of the present invention.
- FIG. 6 is FIG.
- FIG. 5 is a cross-sectional view of a main part of a cylinder head, a sleeve structure, and an intake manifold cut along a line VI-VI in FIG.
- FIG. 7A is a schematic longitudinal sectional view of a main part of the sleeve structure showing a state of formation of the annular protrusion according to the first embodiment of the present invention.
- FIG. 7B is shown in FIG. 7A is similar to 7A, but shows a state in which the annular protrusion is crushed.
- FIG. 8 is a front view of the sleeve structure according to the second embodiment of the present invention relating to the fixing of the sleeve body to the flange.
- FIG. 9 is a longitudinal sectional view of a main portion of the sleeve structure according to the second embodiment of the present invention.
- FIG. 1 Figure of the drawing. 1-6 and FIG. A first embodiment of the present invention will be described with reference to 7A and 7B.
- FIG. 1 an intake manifold 2 is fixed to a cylinder head 1 of a multi-cylinder internal combustion engine.
- the intake manifold 2 has branch pipes equal to the number of cylinders of the engine. Each branch pipe communicates with each intake port of the cylinder head 1.
- the internal combustion engine has four cylinders, and the intake manifold 2 is provided with four branch pipes correspondingly.
- the intake manifold 2 is fixed to the cylinder head 1 via a sleeve structure 3.
- the cylinder head 1 is made of metal, and the intake manifold 2 is made of resin having low thermal conductivity.
- the sleeve structure 3 includes four sleeve bodies 3A that are fitted to the inner periphery of the intake port, and a common base 3B that is provided at one end of the sleeve body 3A.
- the sleeve body 3A and the base 3B are integrally formed in advance using, for example, injection molding using a resin having low thermal conductivity.
- the figure shows the shape of the sleeve structure 3 in a simplified form.
- the base 3B is formed in a flange shape suitable for joining to the cylinder head 1 and has five bolt holes 11 for fixing to the cylinder head 1. Further, projections 7 for positioning to the cylinder head 1 are formed at both ends of the base 3B. The protrusion 7 protrudes from the base 3B in the same direction as the sleeve body 3A.
- FIG. Referring to FIG. 3, the sleeve structure 3 is attached to the cylinder head 1 with the sleeve body 3 ⁇ / b> A fitted into each intake port and the base 3 ⁇ / b> B in contact with the cylinder head 1.
- FIG. 4 when the sleeve structure 3 is inserted into the cylinder head 1, the protrusions 7 at both ends of the base 3 ⁇ / b> B are inserted into positioning holes 6 formed in advance at corresponding positions of the cylinder head 1. Thereby, each sleeve main body 3 ⁇ / b> A smoothly enters each intake port, and the sleeve structure 3 can be easily attached to the cylinder head 1.
- an annular groove-shaped stress relief 8 is formed on the base 3B around the base of the protrusion 7 so as to block the transverse force applied to the protrusion 7 from being transmitted to the base 3B.
- FIG. 5 Referring to FIG. 5, after the sleeve structure 3 is mounted on the cylinder head 1, the intake manifold 2 is fixed to the cylinder head 1 with the bolt 4 together with the sleeve structure 3. Therefore, a common flange-shaped joint 2A is also formed in the opening of the branch pipe of the intake manifold 2.
- the intake manifold structure of the multi-cylinder internal combustion engine is configured by the branch pipe of the intake manifold 2, the sleeve body 3A of the sleeve structure 3, and the intake port of the cylinder head 1.
- FIG. 6 a preferred structure for fixing the intake manifold 2 and the sleeve structure 3 to the cylinder head 1 with bolts 4 will be described.
- the diameter of the bolt hole 11 formed in the base 3B of the sleeve structure 3 is formed in advance larger than the diameter of the bolt 4, and the collar 10 is inserted into the bolt hole 11 in advance.
- the collar 10 has an inner diameter that is approximately equal to the outer diameter of the bolt 4.
- a bolt hole 14 similar to the bolt hole 11 is also formed in the joint portion 2A around the outlet of the branch pipe of the intake manifold 2.
- Another collar 9 is inserted into the bolt hole 14.
- the collars 9 and 10 are made of metal.
- annular protrusion 12 is formed in advance around the bolt hole 11 of the base 3B of the sleeve structure 3 that contacts the collar 10A.
- the collar 10 is inserted into the bolt hole 11 with the flange portion 10 ⁇ / b> A in contact with the annular protrusion 12.
- FIG. 6 With the collar 10 inserted into the bolt hole 11 and the collar 9 inserted into the bolt hole 14, the bolt 4 is inserted inside the collars 9 and 10, and the bolt is formed in the bolt hole formed in the cylinder head 1. Screw the tip of 4 and tighten. This tightening force exerts a pressing force on the flange portion 10 ⁇ / b> A of the collar 10 through the collar 9 from the head 4 ⁇ / b> A of the bolt 4. As a result, FIG. As shown in 7B, the annular protrusion 12 made of resin is crushed.
- this intake passage structure has a plurality of sleeve main bodies 3A fitted to the respective intake ports of the cylinder head 1 of the multi-cylinder internal combustion engine, and a common flange shape provided at one end of the plurality of sleeve main bodies 3A.
- a sleeve structure 3 having a base 3B is fixed to the cylinder head 1.
- the sleeve main body 3A including the sleeve main bodies 3A for all cylinders is fixed to the cylinder head 1 instead of fixing the sleeve main bodies 3A individually for each intake port. Therefore, the sleeve main body 3A is fixed to the cylinder head 1. The work effort can be reduced.
- the sleeve body 3A and the base 3B are made of a resin having a lower thermal conductivity than the cylinder head 1, an excessive increase in the intake air temperature can be prevented.
- this intake passage structure is provided with a positioning mechanism by the projection 7 and the positioning hole 6 between the base 3B and the cylinder head 1, the sleeve structure 3 can be easily and accurately mounted on the cylinder head 1.
- the positioning mechanism has a structure in which the protrusion 7 formed on the resin base 3B enters the positioning hole 6 formed in the metal cylinder head 1. In this manner, by forming the protrusions 7 on the resin-made base 3B that can be easily processed, a processing operation for providing the positioning mechanism can be easily performed.
- a bolt hole 11 is formed in the base 3B, and the bolt 4 is passed through a collar 10 fitted in the bolt hole 14. Therefore, it is possible to prevent the tightening force of the bolt 4 from directly acting on the resin sleeve structure 3.
- the collar 10 is provided with a flange portion 10A exposed to the outside of the base 3B relative to the intake manifold 2, and the annular protrusion 12 is formed at a position opposite to the flange portion 10A of the base 3B. Therefore, when the bolt 4 is tightened to the cylinder head 1, the collar 10 crushes the annular protrusion 12 by the tightening force of the bolt 4, and the crushed annular protrusion 12 compensates for the creep shrinkage of the sleeve structure 3. It has a favorable effect in preventing the loosening of the film.
- a flange-like joint portion 2A that joins the base 3B is provided in the intake manifold 2
- a through hole 14 of the bolt 4 is formed in the joint portion 2A, and one end of the through hole 14 is in contact with the joint portion 2A.
- Another collar 9 is inserted in contact with the head 4A of the bolt 4 at the other end. Therefore, the fastening force of the bolt 4 can be transmitted to the collar 10 with a simple structure.
- the sleeve body 3A and the base 3B are integrally formed by, for example, injection molding.
- the integration of the sleeve body 3A and the base 3B is not necessarily required by injection molding.
- FIG. 1 A second embodiment of the present invention in which the sleeve body 3A and the base 3B are integrated without using injection molding will be described with reference to FIGS.
- the sleeve body 3A and the base 3B are formed separately.
- tabs 3C are formed in advance at two positions at intervals of 180 degrees.
- an auxiliary through hole 16 of the auxiliary bolt 15 is formed in the tab 3C and the base 3B.
- a screw hole that is screwed into the auxiliary bolt 15 is formed in the joint portion 2 ⁇ / b> A of the intake manifold 2.
- the auxiliary bolt 15 is passed through the auxiliary through hole 16 of the tab 3C and the base 3B, and is screwed into the screw hole of the joint portion 2A of the intake manifold 2 to be tightened so that the sleeve main body 3A and the base 3B are connected.
- the sleeve structure 3 and the intake manifold 2 are also integrated. In this state, when the sleeve body 3A is inserted into each intake port, the bolt 4 is passed through the through hole 14 and the bolt hole 11 and screwed into the cylinder head 1 and tightened as in the first embodiment. Fixing of the manifold 2 to the cylinder head 1 is completed.
- the sleeve main body 3A and the base 3B can be individually molded, and the molding shape is simplified. Therefore, the molding operation becomes easy.
- the integration of the sleeve body 3A and the base 3B it is also possible to form them separately as in the second embodiment and integrate them with an adhesive.
- the present invention does not depend on the means for integrating the sleeve body 3A and the base 3B.
- the sleeve body 3A and the base 3B may be integrated as the sleeve structure 3 when the intake manifold 2 is fixed to the cylinder head 1.
- all the cylinders are constituted by one sleeve structure, but a plurality of sleeve structures, that is, for example, two sleeve structures for two cylinders may be used.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims (9)
- 多気筒内燃エンジンのシリンダヘッドの各吸気ポートにそれぞれ嵌合する複数のスリーブ本体と、複数のスリーブ本体の一端に設けられた共通のベースとを備えたスリーブ構造体がシリンダヘッドに固定される、多気筒内燃エンジンの吸気通路構造。
- スリーブ本体とベースはシリンダヘッドより熱伝導率の低い樹脂で構成される、請求項1の多気筒内燃エンジンの吸気通路構造。
- スリーブ本体とベースとはあらかじめ一体成型されている、請求項1または2の多気筒内燃エンジンの吸気通路構造。
- スリーブ本体はあらかじめベースに補助ボルトで固定されている、請求項1または2の多気筒内燃エンジンの吸気通路構造。
- ベースとシリンダヘッドとの間に位置決め機構を設けた、請求項1から4のいずれかの多気筒内燃エンジンの吸気通路構造。
- 位置決め機構はベースに形成された突起と、シリンダヘッドに形成された、突起に係合する係合孔で構成される、請求項5の多気筒内燃エンジンの吸気通路構造。
- スリーブ構造体はベースを貫通するボルトによりシリンダヘッドに固定され、ベースはボルト孔を有し、ボルト孔に嵌合するカラーを介してボルトを貫通させるよう構成された、請求項1から6のいずれかの多気筒内燃エンジンの吸気通路構造。
- スリーブ構造体を介して吸気マニホールドがシリンダヘッドに固定され、ベースは樹脂で構成され、カラーは吸気マニホールドに相対してベースの外側に露出するフランジ部を備えるとともに、ベースのフランジ部に相対する位置に環状突起を形成した、請求項7の多気筒内燃エンジンの吸気通路構造。
- 吸気マニホールドはベースに接合するフランジ状の接合部を備え、接合部にはボルトの貫通孔が形成され、貫通孔には一端をフランジ部に接し、もう一端をボルトの頭部に接する別のカラーが挿入される、請求項8の多気筒内燃エンジンの吸気通路構造。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580080627.5A CN107614861B (zh) | 2015-06-02 | 2015-06-02 | 多气缸内燃发动机的进气通路构造 |
EP15894182.3A EP3306069B1 (en) | 2015-06-02 | 2015-06-02 | Multi-cylinder internal combustion engine with an intake passage structure |
US15/578,416 US11401896B2 (en) | 2015-06-02 | 2015-06-02 | Intake passage structure for multi-cylinder internal combustion engine |
JP2017521402A JP6489213B2 (ja) | 2015-06-02 | 2015-06-02 | 多気筒内燃エンジン |
PCT/JP2015/065942 WO2016194149A1 (ja) | 2015-06-02 | 2015-06-02 | 多気筒内燃エンジンの吸気通路構造 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/065942 WO2016194149A1 (ja) | 2015-06-02 | 2015-06-02 | 多気筒内燃エンジンの吸気通路構造 |
Publications (1)
Publication Number | Publication Date |
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WO2016194149A1 true WO2016194149A1 (ja) | 2016-12-08 |
Family
ID=57441003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2015/065942 WO2016194149A1 (ja) | 2015-06-02 | 2015-06-02 | 多気筒内燃エンジンの吸気通路構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11401896B2 (ja) |
EP (1) | EP3306069B1 (ja) |
JP (1) | JP6489213B2 (ja) |
CN (1) | CN107614861B (ja) |
WO (1) | WO2016194149A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6724597B2 (ja) * | 2016-06-27 | 2020-07-15 | 三菱自動車工業株式会社 | エンジンの吸気通路構造 |
JP6394680B2 (ja) * | 2016-11-04 | 2018-09-26 | マツダ株式会社 | インタークーラ付き多気筒エンジンの吸気装置 |
JP6870345B2 (ja) * | 2017-01-30 | 2021-05-12 | 株式会社アイシン | 吸気装置の取付構造、吸気装置の取付方法および樹脂部材の締結構造 |
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2015
- 2015-06-02 WO PCT/JP2015/065942 patent/WO2016194149A1/ja active Application Filing
- 2015-06-02 JP JP2017521402A patent/JP6489213B2/ja active Active
- 2015-06-02 CN CN201580080627.5A patent/CN107614861B/zh active Active
- 2015-06-02 EP EP15894182.3A patent/EP3306069B1/en active Active
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JPWO2016194149A1 (ja) | 2018-03-22 |
EP3306069A4 (en) | 2018-04-18 |
CN107614861B (zh) | 2022-04-08 |
US20180216586A1 (en) | 2018-08-02 |
CN107614861A (zh) | 2018-01-19 |
JP6489213B2 (ja) | 2019-03-27 |
EP3306069A1 (en) | 2018-04-11 |
EP3306069B1 (en) | 2020-08-05 |
US11401896B2 (en) | 2022-08-02 |
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