WO2007094500A1 - 耐熱鋳鋼製排気マニホールド - Google Patents
耐熱鋳鋼製排気マニホールド Download PDFInfo
- Publication number
- WO2007094500A1 WO2007094500A1 PCT/JP2007/052997 JP2007052997W WO2007094500A1 WO 2007094500 A1 WO2007094500 A1 WO 2007094500A1 JP 2007052997 W JP2007052997 W JP 2007052997W WO 2007094500 A1 WO2007094500 A1 WO 2007094500A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thickness
- heat
- port
- exhaust manifold
- flange
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2530/00—Selection of materials for tubes, chambers or housings
Definitions
- the present invention relates to a heat-resistant steel exhaust manifold that can be manufactured with low man-hours and good yield, is lightweight, and has excellent heat deformation resistance.
- An exhaust manifold that collects exhaust gas from an engine and connects it to an exhaust pipe has a plurality of flange portions having holes that are connected to an exhaust port of a cylinder head at the top of the engine by bolts, and a port in each flange portion. And a gathering portion where a plurality of port portions meet.
- the exhaust part is thicker than the port part in order to prevent the flange part from being thermally deformed by high-temperature exhaust gas (FIG. 2).
- the average thickness of the flange is about 12 mm, and the average thickness of the port is about 5 mm.
- an object of the present invention is to provide a heat-resistant steel-made exhaust malleer that can be manufactured with a small number of man-hours and with a high yield, and is lightweight and excellent in heat deformation resistance.
- the heat resistant steel exhaust manifold of the present invention is an exhaust port of an engine cylinder head.
- a plurality of flange portions having holes connected by bolts, a plurality of port portions connected to the plurality of flange portions, and an assembly portion where the plurality of port portions meet, and the thickness of the flange portion is The thickness of the port portion is 80 to 150%.
- the thickness of the peripheral portion of the bolt hole is preferably 110 to 300% of the thickness of the flange portion.
- the thickness of the ridge is preferably 70 to 140% of the thickness of the port.
- the heat-resistant steel exhaust manifold according to the present invention having the above-described structure can be manufactured with a small number of man-hours and with a high yield, and is lightweight and excellent in heat-resistant deformation.
- FIG. 1 (a) is a schematic plan view showing an exhaust manifold made of heat-resistant steel according to the present invention.
- FIG. 1 (b) is a cross-sectional view taken along the line AA in FIG. 1 (a).
- FIG. 2 (a) is a schematic plan view showing a conventional exhaust manifold.
- FIG. 2 (b) is a BB cross-sectional view of FIG. 2 (a).
- FIG. 3 is a schematic view showing a hot water provided when forging a conventional exhaust manifold.
- FIG. 4 (a) is a schematic plan view showing a preferred example of a heat-resistant steel exhaust manifold according to the present invention.
- FIG. 4 (b) is a schematic front view showing another preferred example of the heat-resistant steel exhaust manifold according to the present invention.
- FIG. 4 (c) is a schematic side view showing still another preferred example of an exhaust manifold made of heat-resistant steel according to the present invention.
- FIG. 5 is a cross-sectional view of a ridge portion.
- the thicknesses of the flange portion, the port portion, and the peripheral portion of the bolt hole are each expressed as an average thickness.
- the thickness of the periphery of the bolt hole formed on the flange is indicated by t in Fig. 1 (b).
- the thickness of the protrusion is the thickness t in the cross section perpendicular to the longitudinal direction as shown in FIG.
- the thickness of the flange portion 2 is 80 to 150% of the thickness of the port portion 3
- sink marks are unlikely to occur in the flange portion 2 that becomes the final solidified portion. Therefore, there is no need to provide a hot water supply in each flange portion 2, and the exhaust manifold can be manufactured with a small number of man-hours and a high yield. If the thickness of the flange portion 2 is less than 80% of the thickness of the port portion 3, the molten metal will not be filled in the flange portion 2 and a hot water defect will occur.
- the thickness of the flange portion 2 is preferably 85 to 130% of the thickness of the port portion 3.
- the flange portion 2 and the peripheral edge portion 5 of the bolt hole 4 after forging and processing are thick by a predetermined machining allowance of 7 minutes, but the thickness t of the flange portion 2 in the present invention is t.
- the thickness of the peripheral portion 5 of the bolt hole 4 is 110 to 300% of the thickness of the flange portion 2, the flange portion 2 is thermally deformed even when the exhaust manifold is exposed to high-temperature exhaust gas. Hateful. Therefore, the exhaust gas is also prevented from flowing out by the force between the exhaust port of the cylinder head and the flange portion 2 of the exhaust manifold. If the thickness of the peripheral portion 5 of the bolt hole 4 is less than 110% of the thickness of the flange portion 2, the flange portion 2 is likely to be thermally deformed by high-temperature exhaust gas. If it exceeds 300%, sink marks are likely to occur in the flange portion 2 during fabrication.
- Fig. 4 (a) when the protruding portion 11 extends from the collecting portion 8 to each flange portion 2 along each port portion 3, the port portion 3 even when exposed to high-temperature exhaust gas. No heat deformation occurs and exhaust gas outflow can be prevented.
- the thickness t of the ridge 11 is 70 to 140% of the thickness of the port 3
- the thickness t of the protrusion 11 is preferably 80 to 120% of the thickness of the port 3. Ridge
- Fig. 4 (a) and Fig. 4 (b) show only the ridges 11 extending from the collecting portion 8 to each flange portion 2 along each port 3 as shown in Fig. 4 (a).
- the ridge 11 extending from the gathering portion 8 to the branching portion of the port 3 may be used.
- Heat ⁇ made exhaust Ma of the present invention - hold, in order to have excellent heat distortion resistance, lightweight, for example, C in the mass 0/0: 0.2 ⁇ 1.0%, C- Nb / 8: 0.05 ⁇ 0.6%, Si: 2% or less, Mn: 2% or less, Ni: 8 ⁇ 20%, Cr: 15 ⁇ 30%, Nb: 0.5 ⁇ 6.0%, W: l ⁇ 6%, N: 0.01 ⁇ 0.3% , S : 0.01 to 0.5%, balance: It is preferably made of austenitic heat-resistant steel made of Fe and inevitable impurities.
- Table 1 shows the thickness t of the port 3 and the thickness t of the peripheral edge 5 of the bolt hole 4. The same auste
- FIG. 4 (a) An exhaust manifold shown in FIG. 4 (a) was forged using a knight-type heat-resistant steel (Examples 9 to 14). Table 1 shows the thickness t of the ridge 11 in addition to t to t.
- the port part 3 and the flange part 2 have a force that does not cause thermal deformation even in the displacement.
- ⁇ Force caused by slight thermal deformation in the flange 2 There was no leakage of exhaust gas.
- X Thermal deformation occurred in the flange part 2 and exhaust gas leakage occurred.
- Example 12 4.0 100 ⁇ ⁇
- Example 13 5.0 100 ⁇ ⁇
- Comparative Example 3 1 ⁇ ⁇ X From Table 1, the exhaust manifold according to the present invention, in which the thickness of the flange portion is 80 to 150% of the thickness of the port portion, is excellent without sinking even without a feeder. Manufactured and with little thermal deformation during use. Among them, Examples 1, 2, and 4 to 8 in which the thickness of the peripheral portion of the bolt hole was 110 to 300% of the thickness of the flange portion were small in thermal deformation. In the exhaust manifolds of Examples 9 to 14 having the protrusions extending along the port portion from the collecting portion, thermal deformation was further small.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/279,482 US20090064670A1 (en) | 2006-02-17 | 2007-02-19 | Exhaust manifold made of heat-resistant cast steel |
EP07714523A EP1985820B1 (en) | 2006-02-17 | 2007-02-19 | Heat-resistant cast steel exhaust manifold |
JP2008500590A JPWO2007094500A1 (ja) | 2006-02-17 | 2007-02-19 | 耐熱鋳鋼製排気マニホールド |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-040499 | 2006-02-17 | ||
JP2006040499 | 2006-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007094500A1 true WO2007094500A1 (ja) | 2007-08-23 |
Family
ID=38371671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/052997 WO2007094500A1 (ja) | 2006-02-17 | 2007-02-19 | 耐熱鋳鋼製排気マニホールド |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090064670A1 (ja) |
EP (1) | EP1985820B1 (ja) |
JP (1) | JPWO2007094500A1 (ja) |
KR (1) | KR20080096666A (ja) |
CN (1) | CN101384803A (ja) |
WO (1) | WO2007094500A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009011748A1 (de) * | 2009-03-09 | 2010-09-23 | Heinrich Gillet Gmbh | Abgasanlage |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014103820A1 (de) * | 2014-03-20 | 2015-09-24 | Benteler Automobiltechnik Gmbh | Abgaskrümmer für eine Abgasanlage eines Verbrennungsmotors |
US9488081B2 (en) | 2014-12-17 | 2016-11-08 | Caterpillar Inc. | Exhaust manifold assembly and system |
EP3730756B1 (en) * | 2019-04-26 | 2021-09-22 | Kubota Corporation | Exhaust system for engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63132825U (ja) * | 1987-02-23 | 1988-08-30 | ||
JPH0658120U (ja) * | 1991-07-16 | 1994-08-12 | 本田技研工業株式会社 | 多気筒エンジンの排気マニホールド |
JPH1026018A (ja) | 1996-07-10 | 1998-01-27 | Nissan Motor Co Ltd | 内燃機関の排気マニホルド |
JP2002309935A (ja) * | 2001-02-08 | 2002-10-23 | Hitachi Metals Ltd | 耐熱鋳鋼製排気系部品 |
JP2005090287A (ja) * | 2003-09-12 | 2005-04-07 | Honda Motor Co Ltd | 内燃機関用シリンダブロック |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4182122A (en) * | 1978-02-15 | 1980-01-08 | Caterpillar Tractor Co. | Insulated exhaust manifold |
JPS60137112U (ja) * | 1984-02-22 | 1985-09-11 | トヨタ自動車株式会社 | エキゾ−ストマニホ−ルド |
JP2605242B2 (ja) * | 1991-04-17 | 1997-04-30 | 豊田合成株式会社 | ステアリングホイール芯金の製造方法 |
US5566548A (en) * | 1994-11-09 | 1996-10-22 | Caterpillar Inc. | Exhaust manifold joint |
JPH1162741A (ja) * | 1997-08-08 | 1999-03-05 | Suzuki Motor Corp | エンジンの吸気マニホルド |
DE19819946A1 (de) * | 1998-05-05 | 1999-11-11 | Boysen Friedrich Gmbh Co Kg | Abgaskrümmer |
JP2000199427A (ja) * | 1998-12-28 | 2000-07-18 | Hitachi Metals Ltd | タ―ボチャ―ジャ用タ―ビンハウジングを鋳造一体化した排気マニホ―ルド |
JP4269244B2 (ja) * | 1999-04-14 | 2009-05-27 | 日立金属株式会社 | エキゾーストマニホールド用鋳物 |
JP2001207841A (ja) * | 2000-01-24 | 2001-08-03 | Mitsubishi Motors Corp | 多気筒エンジン用排気マニホールド |
JP2003063224A (ja) * | 2001-08-29 | 2003-03-05 | Hitachi Metals Ltd | 自動車用サスペンションアーム |
-
2007
- 2007-02-19 EP EP07714523A patent/EP1985820B1/en not_active Expired - Fee Related
- 2007-02-19 US US12/279,482 patent/US20090064670A1/en not_active Abandoned
- 2007-02-19 KR KR1020087019988A patent/KR20080096666A/ko not_active Application Discontinuation
- 2007-02-19 WO PCT/JP2007/052997 patent/WO2007094500A1/ja active Application Filing
- 2007-02-19 JP JP2008500590A patent/JPWO2007094500A1/ja active Pending
- 2007-02-19 CN CNA2007800056541A patent/CN101384803A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63132825U (ja) * | 1987-02-23 | 1988-08-30 | ||
JPH0658120U (ja) * | 1991-07-16 | 1994-08-12 | 本田技研工業株式会社 | 多気筒エンジンの排気マニホールド |
JPH1026018A (ja) | 1996-07-10 | 1998-01-27 | Nissan Motor Co Ltd | 内燃機関の排気マニホルド |
JP2002309935A (ja) * | 2001-02-08 | 2002-10-23 | Hitachi Metals Ltd | 耐熱鋳鋼製排気系部品 |
JP2005090287A (ja) * | 2003-09-12 | 2005-04-07 | Honda Motor Co Ltd | 内燃機関用シリンダブロック |
Non-Patent Citations (1)
Title |
---|
See also references of EP1985820A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009011748A1 (de) * | 2009-03-09 | 2010-09-23 | Heinrich Gillet Gmbh | Abgasanlage |
DE102009011748B4 (de) * | 2009-03-09 | 2013-05-23 | Tenneco Gmbh | Abgasanlage für eine Verbrennungskraftmaschine mit nebeneinander angeordneten Flanschplatten |
Also Published As
Publication number | Publication date |
---|---|
JPWO2007094500A1 (ja) | 2009-07-09 |
EP1985820B1 (en) | 2012-09-05 |
KR20080096666A (ko) | 2008-10-31 |
CN101384803A (zh) | 2009-03-11 |
EP1985820A4 (en) | 2010-01-06 |
US20090064670A1 (en) | 2009-03-12 |
EP1985820A1 (en) | 2008-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6621254B2 (ja) | 耐熱性と表面平滑性に優れた排気部品用オーステナイト系ステンレス鋼板およびその製造方法 | |
US7900458B2 (en) | Turbine airfoils with near surface cooling passages and method of making same | |
JP4400503B2 (ja) | 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 | |
WO2007094500A1 (ja) | 耐熱鋳鋼製排気マニホールド | |
US7565800B2 (en) | Exhaust components including high temperature divider plate assemblies | |
EP1493909B1 (en) | Cylinder head | |
JPH07286503A (ja) | 高効率ガスタービン | |
JP2010127143A (ja) | チャージエアクーラ | |
CN101558179A (zh) | 金属衬垫及其制造方法 | |
JPH11229870A (ja) | エンジンフランジ | |
US20070137841A1 (en) | Automotive heat exchangers having strengthened fins and methods of making the same | |
JP6744740B2 (ja) | 排気マニホールド用フェライト系ステンレス鋼板 | |
JP4740064B2 (ja) | オイルクーラ | |
JP2011501021A (ja) | インペラ用ハウジング | |
WO2016017675A1 (ja) | 内燃機関のシリンダヘッド | |
CN112696258B (zh) | 一种排气歧管热变形设计的控制方法 | |
JP2014115048A (ja) | 多板積層式熱交換器及びそのコアプレート | |
JP4670610B2 (ja) | インタークーラ | |
US8672018B2 (en) | Cylinder head and method | |
JP5450674B2 (ja) | タービン車室の製造方法とそのタービン車室 | |
JP2001289116A (ja) | シリンダヘッドの冷却水通路構造及び製造方法 | |
JP6617477B2 (ja) | ガスケット用ステンレス鋼クラッド | |
US11835014B2 (en) | Cylinder head for internal combustion engine | |
JP5299526B2 (ja) | 内燃機関 | |
JP3305884B2 (ja) | 排気マニホルド |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2008500590 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12279482 Country of ref document: US Ref document number: 1020087019988 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200780005654.1 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007714523 Country of ref document: EP |