JP6493998B2 - 携帯式4サイクルエンジン - Google Patents
携帯式4サイクルエンジン Download PDFInfo
- Publication number
- JP6493998B2 JP6493998B2 JP2017212494A JP2017212494A JP6493998B2 JP 6493998 B2 JP6493998 B2 JP 6493998B2 JP 2017212494 A JP2017212494 A JP 2017212494A JP 2017212494 A JP2017212494 A JP 2017212494A JP 6493998 B2 JP6493998 B2 JP 6493998B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- rocker arm
- tank
- chamber
- engine
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/06—Dip or splash lubrication
-
- 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
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/024—Belt drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/04—Pressure lubrication using pressure in working cylinder or crankcase to operate lubricant feeding devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0408—Sump drainage devices, e.g. valves, plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
- F01M11/061—Means for keeping lubricant level constant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
- F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
- F01M11/065—Position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N19/00—Lubricant containers for use in lubricators or lubrication systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/107—Lubrication of valve gear or auxiliaries of rocker shaft bearings
-
- 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
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
- F02B33/18—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with crankshaft being arranged between working and pumping 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
クランク室11はピストンの上下運動により、上昇負圧が最大になると、クランク室11内の圧力はオイルタンク3内の圧力より小さい。バルブ室と動弁室12はシリンダヘッドカバー2の通気孔により大気と連通され、オイルタンク3はオイル戻し流路によりシリンダヘッドカバー2に連通し、間接的にシリンダヘッドカバー2により大気と連通されているため、オイルタンク3内の圧力は動弁室12の圧力より小さい。
Pc<Po<Pv<Pt
Pcはクランク室11内の圧力、Poはオイルタンク3内の圧力、Pvは動弁室12内の圧力、Ptはシリンダヘッドカバー2内の圧力である。
Claims (6)
- 携帯式4サイクルエンジンであって、エンジン本体と、フライホイールと、オイルタンクを含み、
前記エンジン内には動弁室とクランク室が設けられ、前記クランク室内にはクランク軸が設けられ、前記フライホイールはクランク軸に連結されており、
前記オイルタンクはエンジン本体に設けられ、かつフライホイールの上端の上方に位置し、前記オイルタンクは潤滑油の貯留に用いられており、
前記エンジン本体の上端に、シリンダヘッドカバーが設けられ、
前記シリンダヘッドカバーは底部にオイル戻し孔が設けられて前記オイルタンクと連通しており、
動弁室内にはカムとロッカーアーム機構が設けられ、前記カムはロッカーアーム機構を駆動することに用いられる、ことを特徴とする携帯式4サイクルエンジン。 - 前記オイルタンクはタンク体とタンクカバーを含み、前記タンク体とエンジン本体は一体成形される、ことを特徴とする請求項1に記載の携帯式4サイクルエンジン。
- 前記タンクカバーには給油孔が設けられ、前記給油孔内には給油孔を密閉する密閉キャップが設けられている、ことを特徴とする請求項2に記載の携帯式4サイクルエンジン。
- 前記密閉キャップにはディップスティックが設けられる、ことを特徴とする請求項3に記載の携帯式4サイクルエンジン。
- 前記ロッカーアーム機構は、吸気ロッカーアームと、排気ロッカーアームと、ロッカーアーム軸を含み、
前記ロッカーアーム軸はエンジン本体に設けられ、前記吸気ロッカーアームと排気ロッカーアームはそれぞれロッカーアーム軸に設けられ、前記カムにより吸気ロッカーアームと排気ロッカーアームが駆動される、ことを特徴とする請求項1に記載の携帯式4サイクルエンジン。 - 前記吸気ロッカーアームと排気ロッカーアームがX字形に交叉する、ことを特徴とする請求項5に記載の携帯式4サイクルエンジン。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621193541.1 | 2016-11-04 | ||
CN201621193541.1U CN206352523U (zh) | 2016-11-04 | 2016-11-04 | 便携式四冲程发动机 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018040366A JP2018040366A (ja) | 2018-03-15 |
JP6493998B2 true JP6493998B2 (ja) | 2019-04-03 |
Family
ID=59347660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017212494A Active JP6493998B2 (ja) | 2016-11-04 | 2017-11-02 | 携帯式4サイクルエンジン |
Country Status (6)
Country | Link |
---|---|
US (1) | US10267223B2 (ja) |
JP (1) | JP6493998B2 (ja) |
CN (1) | CN206352523U (ja) |
CA (1) | CA2984401C (ja) |
DE (1) | DE102017124880B4 (ja) |
FR (1) | FR3058466B1 (ja) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE438179B (sv) | 1984-05-21 | 1985-04-01 | Saab Scania Ab | Anordning vid oljenivametare for forbrenningsmotorer |
JP2810986B2 (ja) * | 1989-04-20 | 1998-10-15 | 三信工業株式会社 | 4サイクル船外機の潤滑装置 |
US5022495A (en) * | 1990-02-20 | 1991-06-11 | Briggs & Stratton Corporation | Oil fill tube assembly |
TW487770B (en) | 1995-12-15 | 2002-05-21 | Honda Motor Co Ltd | Lubricating system in a 4-stroke engine |
US6505596B2 (en) * | 2000-03-14 | 2003-01-14 | Honda Giken Kogyo Kabushiki Kaisha | Handheld type four-cycle engine |
JP3819666B2 (ja) * | 2000-03-16 | 2006-09-13 | 本田技研工業株式会社 | ハンドヘルド型四サイクルエンジン |
JP4335403B2 (ja) * | 2000-03-22 | 2009-09-30 | ヤマハ発動機株式会社 | エンジン用オイル循環装置 |
JP4011306B2 (ja) | 2001-06-07 | 2007-11-21 | 富士重工業株式会社 | Ohcエンジン |
JP2003065020A (ja) * | 2001-08-28 | 2003-03-05 | Sanshin Ind Co Ltd | 小型船舶のオイルタンク冷却構造 |
JP5412096B2 (ja) | 2008-12-03 | 2014-02-12 | 株式会社やまびこ | 携帯式チェンソーの動力ユニット構造 |
JP6368375B2 (ja) | 2014-09-30 | 2018-08-01 | 本田技研工業株式会社 | 内燃機関の動弁機構 |
-
2016
- 2016-11-04 CN CN201621193541.1U patent/CN206352523U/zh active Active
-
2017
- 2017-10-24 DE DE102017124880.3A patent/DE102017124880B4/de not_active Expired - Fee Related
- 2017-10-31 CA CA2984401A patent/CA2984401C/en not_active Expired - Fee Related
- 2017-11-01 US US15/801,321 patent/US10267223B2/en not_active Expired - Fee Related
- 2017-11-02 JP JP2017212494A patent/JP6493998B2/ja active Active
- 2017-11-02 FR FR1760324A patent/FR3058466B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2018040366A (ja) | 2018-03-15 |
DE102017124880A1 (de) | 2017-12-28 |
DE102017124880B4 (de) | 2021-11-18 |
US10267223B2 (en) | 2019-04-23 |
CA2984401C (en) | 2021-06-01 |
CN206352523U (zh) | 2017-07-25 |
FR3058466B1 (fr) | 2021-04-09 |
CA2984401A1 (en) | 2018-05-04 |
FR3058466A1 (fr) | 2018-05-11 |
US20180058313A1 (en) | 2018-03-01 |
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