JP7450800B2 - エンジンの排気構造 - Google Patents
エンジンの排気構造 Download PDFInfo
- Publication number
- JP7450800B2 JP7450800B2 JP2023505316A JP2023505316A JP7450800B2 JP 7450800 B2 JP7450800 B2 JP 7450800B2 JP 2023505316 A JP2023505316 A JP 2023505316A JP 2023505316 A JP2023505316 A JP 2023505316A JP 7450800 B2 JP7450800 B2 JP 7450800B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- exhaust
- exhaust gas
- engine
- catalyst
- 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.)
- Active
Links
- 239000003054 catalyst Substances 0.000 claims description 113
- 238000011144 upstream manufacturing Methods 0.000 claims description 72
- 230000003197 catalytic effect Effects 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000007789 gas Substances 0.000 description 101
- 238000000746 purification Methods 0.000 description 11
- 230000006866 deterioration Effects 0.000 description 9
- 238000003466 welding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000002542 deteriorative effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/101—Three-way catalysts
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
- F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/04—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for motorcycles
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
Description
31,32 触媒コンバータ
34 触媒管
46 導出管
50 排出孔
E エンジン
G 排気
Claims (7)
- エンジンの排気を浄化する触媒コンバータを備えた排気構造であって、
前記触媒コンバータを収納する触媒管と、
前記触媒管に排気を導出する導出管と、を備え、
前記導出管は、下流側端が閉塞され、周壁に複数の排出孔が形成され、
前記導出管の軸心が、前記触媒管の軸心に対して傾斜し、かつ、前記触媒コンバータの上流端面を通過しているエンジンの排気構造。 - 請求項1に記載のエンジンの排気構造において、前記排出孔が、前記周壁の周方向の全域にわたって形成されているエンジンの排気構造。
- 請求項1または2に記載のエンジンの排気構造において、前記導出管または前記導出管よりも上流側の配管に湾曲部分が設けられ、
湾曲の外側の前記排出孔の開口面積が、湾曲の内側の前記排出孔の開口面積よりも小さく設定されているエンジンの排気構造。 - 請求項1から3のいずれか一項に記載のエンジンの排気構造において、円筒形の前記触媒管の内径が、前記導出管の内径よりも大きく設定されているエンジンの排気構造。
- 請求項1から4のいずれか一項に記載のエンジンの排気構造において、前記排出孔の開口面積の合計が、前記導出管の閉塞された出口面積よりも大きいエンジンの排気構造。
- 請求項1から5のいずれか一項に記載のエンジンの排気構造において、前記エンジンが単気筒であるエンジンの排気構造。
- 請求項1から6のいずれか一項に記載のエンジンの排気構造を備えた鞍乗型車両であって、前記エンジンの前面に排気管が接続され、
前記導出管が、前記エンジンの前方に配置されている鞍乗型車両。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN202111009610 | 2021-03-08 | ||
IN202111009610 | 2021-03-08 | ||
PCT/JP2022/008509 WO2022190946A1 (ja) | 2021-03-08 | 2022-03-01 | エンジンの排気構造 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2022190946A1 JPWO2022190946A1 (ja) | 2022-09-15 |
JP7450800B2 true JP7450800B2 (ja) | 2024-03-15 |
Family
ID=83226798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023505316A Active JP7450800B2 (ja) | 2021-03-08 | 2022-03-01 | エンジンの排気構造 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230134048A1 (ja) |
JP (1) | JP7450800B2 (ja) |
CN (1) | CN115867721A (ja) |
WO (1) | WO2022190946A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001271628A (ja) | 2000-03-29 | 2001-10-05 | Hoei Kogyo Kk | 内燃機関における触媒素子一体型消音装置 |
JP2013133738A (ja) | 2011-12-26 | 2013-07-08 | Futaba Industrial Co Ltd | 排気処理装置 |
-
2022
- 2022-03-01 JP JP2023505316A patent/JP7450800B2/ja active Active
- 2022-03-01 WO PCT/JP2022/008509 patent/WO2022190946A1/ja active Application Filing
- 2022-03-01 CN CN202280005307.3A patent/CN115867721A/zh active Pending
- 2022-12-30 US US18/091,561 patent/US20230134048A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001271628A (ja) | 2000-03-29 | 2001-10-05 | Hoei Kogyo Kk | 内燃機関における触媒素子一体型消音装置 |
JP2013133738A (ja) | 2011-12-26 | 2013-07-08 | Futaba Industrial Co Ltd | 排気処理装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2022190946A1 (ja) | 2022-09-15 |
US20230134048A1 (en) | 2023-05-04 |
JPWO2022190946A1 (ja) | 2022-09-15 |
CN115867721A (zh) | 2023-03-28 |
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