JP2021011839A - 層状掃気エンジンの吸気通路構造 - Google Patents
層状掃気エンジンの吸気通路構造 Download PDFInfo
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- JP2021011839A JP2021011839A JP2019125310A JP2019125310A JP2021011839A JP 2021011839 A JP2021011839 A JP 2021011839A JP 2019125310 A JP2019125310 A JP 2019125310A JP 2019125310 A JP2019125310 A JP 2019125310A JP 2021011839 A JP2021011839 A JP 2021011839A
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- Prior art keywords
- air
- shielding member
- passage
- intake passage
- passage structure
- Prior art date
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- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
- F02B25/16—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke the charge flowing upward essentially along cylinder wall opposite the inlet ports
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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
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
- F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
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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
- F02M35/10019—Means upstream of the fuel injection system, carburettor or plenum chamber
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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
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/1017—Small engines, e.g. for handheld tools, or model engines; Single cylinder engines
-
- 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
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/1019—Two-stroke engines; Reverse-flow scavenged or cross scavenged engines
-
- 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
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10196—Carburetted engines
-
- 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
- F02M35/10255—Arrangements of valves; Multi-way valves
-
- 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
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
Description
図7は、本発明の第2実施形態に係る吸気通路構造を備えた吸気系の正面断面図である。第2実施形態では、遮蔽部材70が、ロータリーバルブ50の下流側に配置されている。その他の構成は、第1実施形態と同じである。
4 エアクリーナ
4a クリーナケース
20 インシュレータ
21 空気通路
22 混合気通路
50 ロータリーバルブ(流量調整弁)
60、70、80、90、110 遮蔽部材
62、72、82、92、112 胴部
64、74、84、94、114 覆い部
65、75、85、95 部分円筒面
100 バタフライバルブ(流量調整弁)
115 部分球面
E エンジン
Claims (11)
- 混合気通路と空気通路の開度を調整する流量制御弁と、
前記流量制御弁の上流側または下流側に配置されて前記空気通路を流れる空気の量を抑制する遮蔽部材と、を備え、
前記遮蔽部材は、前記流量制御弁の中間開度で、前記空気通路を絞る層状掃気エンジンの吸気通路構造。 - 請求項1に記載の層状掃気エンジンの吸気通路構造において、上流側の前記遮蔽部材は、前記流量制御弁とエアクリーナのクリーナケースとの間に支持されている層状掃気エンジンの吸気通路構造。
- 請求項1に記載の層状掃気エンジンの吸気通路構造において、下流側の前記遮蔽部材は、前記流量制御弁とインシュレータとの間に支持されている層状掃気エンジンの吸気通路構造。
- 請求項1に記載の層状掃気エンジンの吸気通路構造において、上流側の前記遮蔽部材は、エアクリーナのクリーナケースに一体に形成されている層状掃気エンジンの吸気通路構造。
- 請求項1に記載の層状掃気エンジンの吸気通路構造において、下流側の前記遮蔽部材は、インシュレータに一体に形成されている層状掃気エンジンの吸気通路構造。
- 請求項1から5のいずれか一項に記載の層状掃気エンジンの吸気通路構造において、前記遮蔽部材は、空気通路に嵌合される胴部と、空気通路の一部分を覆う覆い部とを有する層状掃気エンジンの吸気通路構造。
- 請求項1から6のいずれか一項に記載の層状掃気エンジンの吸気通路構造において、前記流量制御弁が、気化器の内部に配置されている層状掃気エンジンの吸気通路構造。
- 請求項1から7のいずれか一項に記載の層状掃気エンジンの吸気通路構造において、前記流量制御弁が、ロータリーバルブである層状掃気エンジンの吸気通路構造。
- 請求項8に記載の層状掃気エンジンの吸気通路構造において、前記遮蔽部材は、前記ロータリーバルブに接触ないし近接する部分円筒面を有する層状掃気エンジンの吸気通路構造。
- 請求項1から7のいずれか一項に記載の層状掃気エンジンの吸気通路構造において、前記流量制御弁が、バタフライバルブである層状掃気エンジンの吸気通路構造。
- 請求項10に記載の層状掃気エンジンの吸気通路構造において、前記遮蔽部材は、前記バタフライバルブに接触ないし近接する部分球面を有する層状掃気エンジンの吸気通路構造。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019125310A JP2021011839A (ja) | 2019-07-04 | 2019-07-04 | 層状掃気エンジンの吸気通路構造 |
DE112020003218.3T DE112020003218T5 (de) | 2019-07-04 | 2020-02-07 | Ansaugkanalstruktur eines Motors mit Schichtspülung |
PCT/JP2020/004988 WO2021002041A1 (ja) | 2019-07-04 | 2020-02-07 | 層状掃気エンジンの吸気通路構造 |
CN202080048521.8A CN114041010A (zh) | 2019-07-04 | 2020-02-07 | 层状扫气发动机的进气通路构造 |
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JP2019125310A JP2021011839A (ja) | 2019-07-04 | 2019-07-04 | 層状掃気エンジンの吸気通路構造 |
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JP2021011839A true JP2021011839A (ja) | 2021-02-04 |
JP2021011839A5 JP2021011839A5 (ja) | 2022-03-24 |
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JP2019125310A Pending JP2021011839A (ja) | 2019-07-04 | 2019-07-04 | 層状掃気エンジンの吸気通路構造 |
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JP (1) | JP2021011839A (ja) |
CN (1) | CN114041010A (ja) |
DE (1) | DE112020003218T5 (ja) |
WO (1) | WO2021002041A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013545018A (ja) * | 2010-11-08 | 2013-12-19 | ハスクバーナ・ゼノア株式会社 | 層状掃気2ストロークエンジンのエア供給装置 |
US20160356204A1 (en) * | 2015-06-02 | 2016-12-08 | Zama Japan Kabushiki Kaisha | Carburetor for two-stroke internal combustion engine |
JP2018091235A (ja) * | 2016-12-02 | 2018-06-14 | 株式会社やまびこ | 携帯式エンジン作業機及びこれに組み込まれるロータリ式気化器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007239463A (ja) * | 2006-03-03 | 2007-09-20 | Komatsu Zenoah Co | 2サイクルエンジン |
JP5357556B2 (ja) * | 2009-01-30 | 2013-12-04 | 川崎重工業株式会社 | 空気掃気型の2サイクルエンジン |
JP5396290B2 (ja) | 2010-01-20 | 2014-01-22 | 川崎重工業株式会社 | 2サイクルエンジン |
CN203081566U (zh) * | 2012-09-26 | 2013-07-24 | 川崎重工业株式会社 | 二冲程发动机 |
JP6888558B2 (ja) | 2018-01-19 | 2021-06-16 | 豊田合成株式会社 | 触感提示装置 |
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2019
- 2019-07-04 JP JP2019125310A patent/JP2021011839A/ja active Pending
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2020
- 2020-02-07 CN CN202080048521.8A patent/CN114041010A/zh active Pending
- 2020-02-07 DE DE112020003218.3T patent/DE112020003218T5/de active Pending
- 2020-02-07 WO PCT/JP2020/004988 patent/WO2021002041A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013545018A (ja) * | 2010-11-08 | 2013-12-19 | ハスクバーナ・ゼノア株式会社 | 層状掃気2ストロークエンジンのエア供給装置 |
US20160356204A1 (en) * | 2015-06-02 | 2016-12-08 | Zama Japan Kabushiki Kaisha | Carburetor for two-stroke internal combustion engine |
JP2018091235A (ja) * | 2016-12-02 | 2018-06-14 | 株式会社やまびこ | 携帯式エンジン作業機及びこれに組み込まれるロータリ式気化器 |
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WO2021002041A1 (ja) | 2021-01-07 |
DE112020003218T5 (de) | 2022-03-17 |
CN114041010A (zh) | 2022-02-11 |
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