JP6263799B2 - 車両用内燃機関における排気系構造 - Google Patents
車両用内燃機関における排気系構造 Download PDFInfo
- Publication number
- JP6263799B2 JP6263799B2 JP2014199981A JP2014199981A JP6263799B2 JP 6263799 B2 JP6263799 B2 JP 6263799B2 JP 2014199981 A JP2014199981 A JP 2014199981A JP 2014199981 A JP2014199981 A JP 2014199981A JP 6263799 B2 JP6263799 B2 JP 6263799B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- muffler
- cylinder
- exhaust muffler
- heat shield
- 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.)
- Expired - Fee Related
Links
Images
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
- F01N13/14—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 having thermal insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning 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
- 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
- F01N13/007—Apparatus used as intake or exhaust silencer
-
- 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
- F01N13/085—Other arrangements or adaptations of exhaust conduits having means preventing foreign matter from entering exhaust conduit
-
- 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
- F01N3/24—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 characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/415—Wheel loaders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
- B60Y2200/86—Carts; Golf carts
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/04—Catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Transportation (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Exhaust Gas After Treatment (AREA)
Description
49・・・シリンダヘッド
53・・・排気管
54・・・触媒装置
55・・・排気マフラー
56・・・マフラーケース
65・・・収容筒
66・・・金属触媒
66a・・・金属触媒の後端
73・・・排気ガス導入孔
74a・・・支持筒部
75・・・補強カバー
81・・・第1の遮熱部材
81a・・・前端支持部
81b・・・延出部
82・・・バンド
83・・・ボルト
88・・・第2の遮熱部材
88a・・・カバー部
91・・・間隙
F・・・車体フレーム
Claims (4)
- シリンダヘッド(49)を備える機関本体(38)が車体フレーム(F)に搭載され、前記シリンダヘッド(49)からの排気ガスが導かれる排気マフラー(55)が、車幅方向に延びて前記車体フレーム(F)の後部に配設される車両用内燃機関における排気系構造において、
前記シリンダヘッド(49)からの排気ガスを導くようにして前記排気マフラー(55)の前方で前後方向に延びる排気管(53)と、前記排気マフラー(55)との間に、前記排気管(53)に同軸に連なるとともに前記排気マフラー(55)にその前方から平面視で略T字状に接続される触媒装置(54)が設けられ、該触媒装置(54)の上流端部に一端部が固定されるとともに前記排気マフラー(55)に近接するにつれて少なくとも車幅方向に沿う幅を大きくするように形成されて前記触媒装置(54)を覆う補強カバー(75)の他端部が前記排気マフラー(55)に固定され、前記補強カバー(75)を上方から覆う第1の遮熱部材(81)の後部に、前記排気マフラー(55)の外周に沿って後上がりに延びる延出部(81b)が一体に形成され、前記延出部(81b)を上方から覆って後上がりに傾斜したカバー部(88a)を一体に有する第2の遮熱部材(88)が、前記排気マフラー(55)を上方から覆うように配置され、上下に重なる前記延出部(81b)および前記カバー部(88a)間に、空気の流通を可能とする間隙(91)が形成されることを特徴とする車両用内燃機関における排気系構造。 - 前記第1の遮熱部材(81)の前端部に、前記排気管(53)の上部外周に当接するように半円状に形成された前端支持部(81a)が形成され、前記排気管(53)に対する前記前端支持部(81a)の径方向位置決めを果たすためのバンド(82)が、前記前端支持部(81a)の外周および前記排気管(53)の下部外周に巻かれ、前記第1の遮熱部材(81)の後部が、前記補強カバー(75)の左右両側にボルト(83)で固定されることを特徴とする請求項1に記載の車両用内燃機関における排気系構造。
- 前記触媒装置(54)は、前記排気管(53)に接続される収容筒(65)と、その収容筒(65)内に収容される金属触媒(66)とを備え、前記排気マフラー(55)のマフラーケース(56)に、該マフラーケース(56)内に通じる排気ガス導入孔(73)が設けられるとともに、該排気ガス導入孔(73)と同軸にして前方に延びる支持筒部(74a)が設けられ、前記収容筒(65)の後端部が前記支持筒部(74a)に支持されることを特徴とする請求項2に記載の車両用内燃機関における排気系構造。
- 前記収容筒(65)の後端部が前記支持筒部(74a)に圧入され、前記支持筒部(74a)の前端が、前記収容筒(65)内の前記金属触媒(66)の後端(66a)よりも前方に配置されることを特徴とする請求項3に記載の車両用内燃機関における排気系構造。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014199981A JP6263799B2 (ja) | 2014-09-30 | 2014-09-30 | 車両用内燃機関における排気系構造 |
US14/845,517 US9512771B2 (en) | 2014-09-30 | 2015-09-04 | Exhaust system structure in internal combustion engine for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014199981A JP6263799B2 (ja) | 2014-09-30 | 2014-09-30 | 車両用内燃機関における排気系構造 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016070165A JP2016070165A (ja) | 2016-05-09 |
JP6263799B2 true JP6263799B2 (ja) | 2018-01-24 |
Family
ID=55583889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014199981A Expired - Fee Related JP6263799B2 (ja) | 2014-09-30 | 2014-09-30 | 車両用内燃機関における排気系構造 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9512771B2 (ja) |
JP (1) | JP6263799B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2937734A1 (en) * | 2014-01-31 | 2015-08-06 | Bombardier Recreational Products Inc. | Off-road wheeled side-by-side vehicle |
US9851162B2 (en) * | 2014-08-05 | 2017-12-26 | Air International, Inc. | Cover for heat source |
USD819492S1 (en) * | 2017-03-20 | 2018-06-05 | Yamaha Hatsudoki Kabushiki Kaisha | Four wheeled vehicle |
JP7095279B2 (ja) * | 2017-12-27 | 2022-07-05 | トヨタ自動車株式会社 | 車両の排気装置 |
JP7009268B2 (ja) * | 2018-03-08 | 2022-01-25 | 株式会社クボタ | 作業車 |
US11560825B2 (en) * | 2019-10-17 | 2023-01-24 | Honda Motor Co., Ltd. | Muffler heat protection assembly |
JP7482375B2 (ja) | 2020-11-05 | 2024-05-14 | マツダ株式会社 | 車両の排気消音装置 |
Family Cites Families (36)
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JPS59144108U (ja) * | 1983-03-18 | 1984-09-26 | 富士重工業株式会社 | 自動車用排気系の遮熱装置 |
US5111555A (en) * | 1984-06-20 | 1992-05-12 | Hans Oetiker | High strength clamp structure |
US4609067A (en) * | 1985-05-08 | 1986-09-02 | Maremont Corporation | Heat shield for a vehicular muffler |
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JP2014141161A (ja) * | 2013-01-23 | 2014-08-07 | Honda Motor Co Ltd | 車両における排気系搭載構造 |
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-
2014
- 2014-09-30 JP JP2014199981A patent/JP6263799B2/ja not_active Expired - Fee Related
-
2015
- 2015-09-04 US US14/845,517 patent/US9512771B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20160090889A1 (en) | 2016-03-31 |
US9512771B2 (en) | 2016-12-06 |
JP2016070165A (ja) | 2016-05-09 |
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