JP2015108319A - 空冷エンジンおよびエンジン作業機 - Google Patents
空冷エンジンおよびエンジン作業機 Download PDFInfo
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- JP2015108319A JP2015108319A JP2013250914A JP2013250914A JP2015108319A JP 2015108319 A JP2015108319 A JP 2015108319A JP 2013250914 A JP2013250914 A JP 2013250914A JP 2013250914 A JP2013250914 A JP 2013250914A JP 2015108319 A JP2015108319 A JP 2015108319A
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- muffler
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- muffler cover
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
-
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/14—Silencing apparatus characterised by method of silencing by adding air to exhaust gases
-
- 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
- F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
-
- 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
-
- 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
- F01N13/141—Double-walled exhaust pipes or housings
-
- 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
- F01N13/141—Double-walled exhaust pipes or housings
- F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
-
- 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
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
-
- 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
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
- F01N2260/022—Exhaust treating devices having provisions not otherwise provided for for cooling the device using air
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
-
- 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
- F01N2590/06—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hand-held tools or portables devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
- F01P2001/023—Cooling cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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)
- Exhaust Silencers (AREA)
Abstract
本発明は小型空冷エンジンの冷却構造に関する。
【解決手段】
シリンダとクランクケースによってエンジン本体が構成され、シリンダの排気口にマフラが取り付けられ、駆動軸の少なくとも一端に冷却ファンを有し、冷却ファンを収容するファンケースを有し、シリンダを収容しシリンダ冷却室を形成するシリンダカバーを有し、マフラの少なくとも一部を隙間を有して覆う第1のマフラカバーを有し、第1のマフラカバーの少なくとも一部を隙間を有して覆う第2のマフラカバーを有し、第1のマフラカバーと第2のマフラカバーによってマフラ冷却室を構成し、冷却ファンによって発生した冷却風の一部をマフラ冷却室に供給した小型空冷エンジンにおいて、
冷却風をマフラと第1のマフラカバーの間の第1の空間または第1のマフラカバーと第2のマフラカバーの間の第2の空間の少なくとも一方に供給した。
【選択図】図5
Description
しかしながら、これらのエンジン作業機本体との間の接続構造については本願発明とは直接の関係がなく、かつこれらについては従来から知られるものと同様であるため、以下ではこれらについての説明は省略し、主にエンジンの冷却に関わる構造、機能について説明する。
Claims (12)
- シリンダと、前記シリンダに取り付けられ駆動軸を回転可能に支持するクランクケースと、前記駆動軸に取り付けられる冷却ファンと、前記シリンダの排気口に取り付けられ内部を通過した排気ガスを排気出口から排出するマフラと、前記冷却ファンを覆うファンケースと、前記シリンダを覆ってシリンダ室を形成するシリンダカバーと、前記マフラを覆ってマフラ室を形成するマフラカバーと、を具備する空冷エンジンであって、
前記マフラカバーは、前記マフラの少なくとも一部を覆う第1のマフラカバーと、前記第1のマフラカバーの少なくとも一部を覆う第2のマフラカバーとを備え、前記冷却ファンによって発生した冷却風の一部が、前記マフラと前記第1のマフラカバーの間の第1の空間または前記第1のマフラカバーと前記第2のマフラカバーの間の第2の空間の少なくとも一方に供給される構成とされ、
前記マフラカバーの内部において、前記第1の空間または前記第2の空間に供給された冷却風を、前記マフラの排気出口側に導く導風部を具備することを特徴とする空冷エンジン。 - 前記シリンダ室と前記第2の空間を連通する第2の連通口を有し、前記冷却風は少なくとも前記第2の空間に供給されることを特徴とする請求項1に記載の空冷エンジン。
- 前記第1の空間と前記第2の空間の両方に冷却風を供給したことを特徴とする請求項2に記載の空冷エンジン。
- 前記第1の空間と前記第2の空間における冷却風の流れを略同一方向としたことを特徴とする請求項3に記載の空冷エンジン。
- 前記マフラ室と前記シリンダ室を連通する連通口を一端側に備え、前記マフラ室の他端側に前記第1の空間と前記第2の空間を連通させる混合空間を設けたことを特徴とする請求項3または4に記載の空冷エンジン。
- 前記混合空間に前記マフラの排気出口を連通させたことを特徴とする請求項5に記載の空冷エンジン。
- 前記連通口は前記駆動軸方向における前記冷却ファン側に配置され、前記第1の空間への冷却風の入口と前記第2の空間への冷却風の入口が冷却ファン側に配置されたことを特徴とする請求項5または6に記載の空冷エンジン。
- 前記マフラ室と前記シリンダ室を分割する仕切り板を備え、前記仕切り板は、前記マフラ室と前記シリンダ室を連通する切り欠きを備え、前記仕切り板と垂直な方向視において、前記切り欠きが前記第1の空間または前記第2の空間に跨って配置されることを特徴とする請求項3乃至7のうち何れか一項に記載の空冷エンジン。
- 前記シリンダを冷却する前の冷却風を前記マフラ冷却室に供給したことを特徴とする請求項1乃至8のうち何れか一項に記載の空冷エンジン。
- 前記第1のマフラカバーを前記第2のマフラカバーに取り付けたことを特徴とする請求項1乃至9のうち何れか一項に記載の空冷エンジン。
- 前記第2のマフラカバーにおいて、前記第2のマフラカバーの混合空間側の少なくとも一部を隙間を有して覆う前記第3のマフラカバーを設けたことを特徴とする請求項1乃至10のうち何れか一項に記載の空冷エンジン。
- 請求項1から11のいずれか一項に記載の空冷エンジンを備えたことを特徴とするエンジン作業機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013250914A JP6232984B2 (ja) | 2013-12-04 | 2013-12-04 | 空冷エンジンおよびエンジン作業機 |
US15/027,225 US20160237876A1 (en) | 2013-12-04 | 2014-12-04 | Air-cooled engine and engine working machine |
CN201480066024.5A CN106030070B (zh) | 2013-12-04 | 2014-12-04 | 气冷式发动机及发动机作业机 |
PCT/JP2014/006069 WO2015083380A1 (en) | 2013-12-04 | 2014-12-04 | air-cooled engine and engine working MACHINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013250914A JP6232984B2 (ja) | 2013-12-04 | 2013-12-04 | 空冷エンジンおよびエンジン作業機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015108319A true JP2015108319A (ja) | 2015-06-11 |
JP6232984B2 JP6232984B2 (ja) | 2017-11-22 |
Family
ID=52144800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013250914A Expired - Fee Related JP6232984B2 (ja) | 2013-12-04 | 2013-12-04 | 空冷エンジンおよびエンジン作業機 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160237876A1 (ja) |
JP (1) | JP6232984B2 (ja) |
CN (1) | CN106030070B (ja) |
WO (1) | WO2015083380A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107923301A (zh) * | 2015-06-23 | 2018-04-17 | 三菱重工名机发动机株式会社 | 消音器盖及发动机 |
WO2020044498A1 (ja) * | 2018-08-30 | 2020-03-05 | 本田技研工業株式会社 | 汎用エンジン |
KR102452170B1 (ko) * | 2021-09-17 | 2022-10-07 | 한엔진공업(주) | 머플러 커버의 과열을 방지하는 방열패드를 구비한 머플러 유닛 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP1551450S (ja) * | 2015-08-28 | 2016-06-13 | ||
JP1551581S (ja) * | 2015-11-25 | 2016-06-13 | ||
US20190368407A1 (en) * | 2017-01-18 | 2019-12-05 | Honda Motor Co., Ltd. | Internal combustion engine |
MX2018001383A (es) * | 2017-02-01 | 2018-11-29 | Tvs Motor Co Ltd | Un sistema de enfriamiento para un motor de combustion interna. |
USD865817S1 (en) * | 2018-06-25 | 2019-11-05 | Kawasaki Jukogyo Kabushiki Kaisha | Internal combustion engine |
CN111075549B (zh) * | 2018-08-30 | 2022-02-08 | 本田技研工业株式会社 | 通用发动机 |
US11560825B2 (en) | 2019-10-17 | 2023-01-24 | Honda Motor Co., Ltd. | Muffler heat protection assembly |
USD952688S1 (en) * | 2019-11-19 | 2022-05-24 | Kaaz Corporation | Engine |
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JP2003129840A (ja) * | 2001-10-19 | 2003-05-08 | Kawasaki Heavy Ind Ltd | エンジンのマフラ遮熱構造 |
JP2013068140A (ja) * | 2011-09-21 | 2013-04-18 | Hitachi Koki Co Ltd | エンジン及びエンジン作業機 |
Family Cites Families (6)
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US4370855A (en) * | 1979-06-25 | 1983-02-01 | Emerson Electric Co. | Muffler for portable engine |
US4741411A (en) * | 1987-01-14 | 1988-05-03 | Deere & Company | Muffler system |
US4907546A (en) * | 1987-12-02 | 1990-03-13 | Kubota Ltd. | Air-cooled type cooling system for engine working machine assembly |
JP3654567B2 (ja) * | 1999-05-21 | 2005-06-02 | 本田技研工業株式会社 | エンジン発電機 |
JP2005090377A (ja) * | 2003-09-18 | 2005-04-07 | Kubota Corp | 空冷エンジン |
JP2013213414A (ja) * | 2012-03-31 | 2013-10-17 | Hitachi Koki Co Ltd | エンジン作業機 |
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2013
- 2013-12-04 JP JP2013250914A patent/JP6232984B2/ja not_active Expired - Fee Related
-
2014
- 2014-12-04 CN CN201480066024.5A patent/CN106030070B/zh not_active Expired - Fee Related
- 2014-12-04 US US15/027,225 patent/US20160237876A1/en not_active Abandoned
- 2014-12-04 WO PCT/JP2014/006069 patent/WO2015083380A1/en active Application Filing
Patent Citations (2)
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JP2003129840A (ja) * | 2001-10-19 | 2003-05-08 | Kawasaki Heavy Ind Ltd | エンジンのマフラ遮熱構造 |
JP2013068140A (ja) * | 2011-09-21 | 2013-04-18 | Hitachi Koki Co Ltd | エンジン及びエンジン作業機 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107923301A (zh) * | 2015-06-23 | 2018-04-17 | 三菱重工名机发动机株式会社 | 消音器盖及发动机 |
CN107923301B (zh) * | 2015-06-23 | 2020-03-03 | 三菱重工名机发动机株式会社 | 消音器盖及发动机 |
WO2020044498A1 (ja) * | 2018-08-30 | 2020-03-05 | 本田技研工業株式会社 | 汎用エンジン |
CN111148891A (zh) * | 2018-08-30 | 2020-05-12 | 本田技研工业株式会社 | 通用发动机 |
EP3819485A4 (en) * | 2018-08-30 | 2021-05-12 | Honda Motor Co., Ltd. | MULTI-PURPOSE ENGINE |
JPWO2020044498A1 (ja) * | 2018-08-30 | 2021-08-26 | 本田技研工業株式会社 | 汎用エンジン |
US11300035B2 (en) | 2018-08-30 | 2022-04-12 | Honda Motor Co., Ltd. | General-purpose engine |
JP7061675B2 (ja) | 2018-08-30 | 2022-04-28 | 本田技研工業株式会社 | 汎用エンジン |
KR102452170B1 (ko) * | 2021-09-17 | 2022-10-07 | 한엔진공업(주) | 머플러 커버의 과열을 방지하는 방열패드를 구비한 머플러 유닛 |
Also Published As
Publication number | Publication date |
---|---|
WO2015083380A1 (en) | 2015-06-11 |
CN106030070B (zh) | 2019-06-21 |
CN106030070A (zh) | 2016-10-12 |
JP6232984B2 (ja) | 2017-11-22 |
US20160237876A1 (en) | 2016-08-18 |
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