JP4317086B2 - 減圧装置を備えた空気掃気型エンジン - Google Patents
減圧装置を備えた空気掃気型エンジン Download PDFInfo
- Publication number
- JP4317086B2 JP4317086B2 JP2004201466A JP2004201466A JP4317086B2 JP 4317086 B2 JP4317086 B2 JP 4317086B2 JP 2004201466 A JP2004201466 A JP 2004201466A JP 2004201466 A JP2004201466 A JP 2004201466A JP 4317086 B2 JP4317086 B2 JP 4317086B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- passage
- scavenging
- cylinder
- combustion chamber
- 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
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Classifications
-
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
- F02B25/22—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18 by forming air cushion between charge and combustion residues
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
6 シリンダ
9 燃焼室
16 ピストン
19 クランク軸
31 排気ポート
32 導入通路
38 デコンプ孔
44 蓋体
A 空気
E エンジン
M 混合気
Claims (4)
- 混合気に先立って空気を燃焼室に導入する導入通路を備えた空気掃気型エンジンであって、
前記燃焼室を前記導入通路に連通させるデコンプ孔が形成され、
前記デコンプ孔はピストンの上昇により排気ポートよりも遅く閉止されるように設定され、
前記排気ポートと対向する位置に前記デコンプ孔が形成されている、減圧装置を備えた空気掃気型エンジン。 - 請求項1において、前記デコンプ孔は燃焼室に向かって上向きに設定されている、減圧装置を備えた空気掃気型エンジン。
- 混合気に先立って空気を燃焼室に導入する導入通路を備えた空気掃気型エンジンであって、
前記燃焼室を前記導入通路に連通させるデコンプ孔が形成され、
前記デコンプ孔はピストンの上昇により排気ポートよりも遅く閉止されるように設定され、
前記導入通路がシリンダに形成され、前記導入通路の一側におけるシリンダからの露出部分を覆う蓋体が取り付けられ、
前記デコンプ孔が前記導入通路における露出部分に対向する他側に位置している、減圧装置を備えた空気掃気型エンジン。 - 請求項1から3のいずれかの一項において、さらに、エンジンのクランク軸に連結されて空気流を生成するファンを備え、前記デコンプ孔がシリンダにおけるファンに近接した側部に設けられている、減圧装置を備えた空気掃気型エンジン。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004201466A JP4317086B2 (ja) | 2004-07-08 | 2004-07-08 | 減圧装置を備えた空気掃気型エンジン |
US11/171,881 US7146942B2 (en) | 2004-07-08 | 2005-06-30 | Two-cycle combustion engine with air scavenging system having pressure reducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004201466A JP4317086B2 (ja) | 2004-07-08 | 2004-07-08 | 減圧装置を備えた空気掃気型エンジン |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2006022715A JP2006022715A (ja) | 2006-01-26 |
JP2006022715A5 JP2006022715A5 (ja) | 2007-04-12 |
JP4317086B2 true JP4317086B2 (ja) | 2009-08-19 |
Family
ID=35540015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004201466A Expired - Fee Related JP4317086B2 (ja) | 2004-07-08 | 2004-07-08 | 減圧装置を備えた空気掃気型エンジン |
Country Status (2)
Country | Link |
---|---|
US (1) | US7146942B2 (ja) |
JP (1) | JP4317086B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7331315B2 (en) * | 2005-02-23 | 2008-02-19 | Eastway Fair Company Limited | Two-stroke engine with fuel injection |
US20060243230A1 (en) * | 2005-03-23 | 2006-11-02 | Mavinahally Nagesh S | Two-stroke engine |
JP2007239463A (ja) * | 2006-03-03 | 2007-09-20 | Komatsu Zenoah Co | 2サイクルエンジン |
JP5478272B2 (ja) * | 2010-01-22 | 2014-04-23 | 株式会社やまびこ | 2ストローク内燃エンジン及びその掃気方法 |
JP5922569B2 (ja) * | 2012-12-28 | 2016-05-24 | 株式会社マキタ | 層状掃気2ストロークエンジン |
JP6549031B2 (ja) * | 2015-12-21 | 2019-07-24 | 株式会社やまびこ | 空気先導式2ストローク空冷エンジン |
CN205315134U (zh) * | 2016-01-16 | 2016-06-15 | 浙江中马园林机器股份有限公司 | 扫气道外置式低排气缸 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7203661B1 (en) * | 1992-10-28 | 2007-04-10 | Graff/Ross Holdings | Computers making financial analysis output having property valuations |
US6192347B1 (en) * | 1992-10-28 | 2001-02-20 | Graff/Ross Holdings | System and methods for computing to support decomposing property into separately valued components |
JP3131909B2 (ja) | 1991-06-03 | 2001-02-05 | 工業技術院長 | 超電導応用限流装置 |
US6202052B1 (en) * | 1997-05-08 | 2001-03-13 | Simplification, Llc | Fully-automated system for tax reporting, payment and refund |
US6058376A (en) * | 1997-12-29 | 2000-05-02 | Crockett; David A. | Process for evaluating the financial consequences of converting a standard form I.R.A. to the Roth form I.R.A. |
AU774433B2 (en) * | 1998-03-11 | 2004-06-24 | Foliofn, Inc. | Method and apparatus for enabling individual or smaller investors or others to create and manage a portofolio of securities or other assets or liabilities on a cost effective basis |
US6996539B1 (en) * | 1998-03-11 | 2006-02-07 | Foliofn, Inc. | Method and apparatus for enabling smaller investors or others to create and manage a portfolio of securities or other assets or liabilities on a cost effective basis |
US7096195B1 (en) * | 1998-05-04 | 2006-08-22 | Durham Russell Maples | Method for enhancing the equity of a business entity |
US6161098A (en) * | 1998-09-14 | 2000-12-12 | Folio (Fn), Inc. | Method and apparatus for enabling small investors with a portfolio of securities to manage taxable events within the portfolio |
US6687681B1 (en) * | 1999-05-28 | 2004-02-03 | Marshall & Ilsley Corporation | Method and apparatus for tax efficient investment management |
US7165044B1 (en) * | 1999-10-01 | 2007-01-16 | Summa Lp Applications | Investment portfolio tracking system and method |
US7249080B1 (en) * | 1999-10-25 | 2007-07-24 | Upstream Technologies Llc | Investment advice systems and methods |
US6567790B1 (en) * | 1999-12-01 | 2003-05-20 | Wealth Transfer Group, L.L.C. | Establishing and managing grantor retained annuity trusts funded by nonqualified stock options |
US6988082B1 (en) * | 2000-06-13 | 2006-01-17 | Fannie Mae | Computerized systems and methods for facilitating the flow of capital through the housing finance industry |
WO2002021370A1 (en) * | 2000-09-01 | 2002-03-14 | Intuit, Inc. | Automated tax return with universal data import |
US7461021B2 (en) * | 2000-11-29 | 2008-12-02 | Amg National Trust Bank | Method of ascertaining an efficient frontier for tax-sensitive investors |
US6772128B2 (en) * | 2001-02-07 | 2004-08-03 | American International Group, Inc. | Nuclear decommissioning insurance financial product and method |
US6766303B2 (en) * | 2001-05-16 | 2004-07-20 | Goldman Sachs & Co. | Method for hedging one or more liabilities associated with a deferred compensation plan |
US20020178039A1 (en) * | 2001-05-22 | 2002-11-28 | Kennedy Diane M. | Accelerated tax reduction platform |
JP4373395B2 (ja) | 2002-10-11 | 2009-11-25 | 川崎重工業株式会社 | 空気掃気型の2サイクルエンジン |
US20050086148A1 (en) * | 2003-10-20 | 2005-04-21 | Woodruff Kevin G. | Investment structures, methods and systems involving derivative securities |
US20080071703A1 (en) * | 2006-09-05 | 2008-03-20 | The Tax Co-Op, Inc. | Tax resolution process and system |
-
2004
- 2004-07-08 JP JP2004201466A patent/JP4317086B2/ja not_active Expired - Fee Related
-
2005
- 2005-06-30 US US11/171,881 patent/US7146942B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2006022715A (ja) | 2006-01-26 |
US20060005795A1 (en) | 2006-01-12 |
US7146942B2 (en) | 2006-12-12 |
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