JP4912740B2 - 2サイクルエンジン - Google Patents
2サイクルエンジン Download PDFInfo
- Publication number
- JP4912740B2 JP4912740B2 JP2006137622A JP2006137622A JP4912740B2 JP 4912740 B2 JP4912740 B2 JP 4912740B2 JP 2006137622 A JP2006137622 A JP 2006137622A JP 2006137622 A JP2006137622 A JP 2006137622A JP 4912740 B2 JP4912740 B2 JP 4912740B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- crankcase
- outer ring
- crankshaft
- insertion portion
- 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
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0043—Arrangements of mechanical drive elements
- F02F7/0053—Crankshaft bearings fitted in the crankcase
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/02—Crankshaft 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
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0002—Cylinder arrangements
- F02F7/0004—Crankcases of one-cylinder engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
図1は、本実施形態に係る2サイクルエンジン(以下、単にエンジンと称する)10の要部、およびエンジン10が搭載されるチェーンソー1の外観(想像線)を示した斜視図である。図2は、エンジン10を示す断面図である。
従って、上記に開示した形状、数量などを限定した記載は、本発明の理解を容易にするために例示的に記載したものであり、本発明を限定するものではないから、それらの形状、数量などの限定の一部もしくは全部の限定を外した部材の名称での記載は、本発明に含まれるものである。
Claims (2)
- 2サイクルエンジンにおいて、
両側に軸部を有するクランクシャフトと、
このクランクシャフトの前記各軸部をベアリングを介して軸支するクランクケースとを備え、
前記各軸部のうちの低負荷側の軸部を受けるベアリングの外輪には、周方向に沿った鍔部が設けられ、
前記クランクケースには、前記一方のベアリングを挿入する挿入部が当該クランクケースを同径のまま貫通して設けられ、
前記挿入部の内方には、前記鍔部を内方から挿入して係合させる係合部が該挿入部よりも拡径して設けられ、
前記鍔部は、前記係合部内に収容されているとともに、該係合部に対して軸方向に当接している
ことを特徴とする2サイクルエンジン。 - 請求項1に記載の2サイクルエンジンにおいて、
前記鍔部は、前記外輪での軸方向の内方寄りの位置に設けられている
ことを特徴とする2サイクルエンジン。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006137622A JP4912740B2 (ja) | 2006-05-17 | 2006-05-17 | 2サイクルエンジン |
CN200780017877XA CN101449048B (zh) | 2006-05-17 | 2007-05-16 | 二冲程发动机 |
PCT/JP2007/060007 WO2007132876A1 (ja) | 2006-05-17 | 2007-05-16 | 2サイクルエンジン |
US12/227,367 US8186326B2 (en) | 2006-05-17 | 2007-05-16 | Two-cycle engine |
EP07743442.1A EP2028358B1 (en) | 2006-05-17 | 2007-05-16 | Two-cycle engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006137622A JP4912740B2 (ja) | 2006-05-17 | 2006-05-17 | 2サイクルエンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007309164A JP2007309164A (ja) | 2007-11-29 |
JP4912740B2 true JP4912740B2 (ja) | 2012-04-11 |
Family
ID=38693965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006137622A Active JP4912740B2 (ja) | 2006-05-17 | 2006-05-17 | 2サイクルエンジン |
Country Status (5)
Country | Link |
---|---|
US (1) | US8186326B2 (ja) |
EP (1) | EP2028358B1 (ja) |
JP (1) | JP4912740B2 (ja) |
CN (1) | CN101449048B (ja) |
WO (1) | WO2007132876A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2100047B1 (en) * | 2006-12-06 | 2012-08-15 | Husqvarna Aktiebolag | A crankshaft bearing arrangement of a combustion engine |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1072314A (en) * | 1908-12-02 | 1913-09-02 | Etablissements Cote Soc D | Two-cycle explosion-motor. |
US3563222A (en) * | 1968-07-16 | 1971-02-16 | Kenjiro Ishida | Perfectly balanced vibrationless rotation-reciprocation devices of crankshaft rotary motion system |
US4114586A (en) * | 1974-10-17 | 1978-09-19 | Kawasaki Jukogyo Kabushiki Kaisha | Accessory mounting means for internal combustion engines |
SE435418B (sv) * | 1981-06-16 | 1984-09-24 | Electrolux Ab | Forbrenningsmotor med vevaxellager |
JPS63124863A (ja) * | 1986-11-14 | 1988-05-28 | Komatsu Zenoa Kk | 2サイクルエンジン |
JPH0645610Y2 (ja) * | 1988-09-26 | 1994-11-24 | 富士重工業株式会社 | 2サイクルエンジンのバランサギヤ室用ブリーザ装置 |
SE500270C2 (sv) | 1989-08-31 | 1994-05-24 | Electrolux Ab | Lagerhus för vevaxeln av en tvåtakts förbränningsmotor |
JP2534854Y2 (ja) | 1992-04-23 | 1997-05-07 | エヌティエヌ株式会社 | フランジ付シェル形軸受 |
JP2702666B2 (ja) | 1993-12-27 | 1998-01-21 | 小松ゼノア株式会社 | 2サイクルエンジン |
SE507566C2 (sv) * | 1996-05-31 | 1998-06-22 | Electrolux Ab | Vevaxellagring med dräneringskanal vid förbränningsmotor |
JP2001051534A (ja) * | 1999-08-12 | 2001-02-23 | Ntn Corp | 定着ローラ用軸受装置 |
US6390683B1 (en) * | 1999-06-11 | 2002-05-21 | Ntn Corporation | Heat insulation sleeve and bearing device for fixing roller |
JP2001099173A (ja) * | 1999-09-28 | 2001-04-10 | Fuji Photo Optical Co Ltd | 回転軸の支持構造 |
US6205962B1 (en) * | 1999-11-03 | 2001-03-27 | William H. Berry, Jr. | Two-cycle internal combustion engine with enhanced lubrication |
JP3831176B2 (ja) * | 2000-05-10 | 2006-10-11 | 本田技研工業株式会社 | 内燃機関のクランク軸保持構造 |
JP3867837B2 (ja) * | 2000-12-20 | 2007-01-17 | 本田技研工業株式会社 | 内燃機関 |
JP2002266653A (ja) * | 2001-03-09 | 2002-09-18 | Yamaha Motor Co Ltd | 雪上車 |
JP2003021154A (ja) * | 2001-07-10 | 2003-01-24 | Koyo Seiko Co Ltd | 複列円すいころ軸受装置およびその組立て方法 |
US6832590B2 (en) * | 2001-12-25 | 2004-12-21 | Honda Giken Kogyo Kabushiki Kaisha | Internal combustion engine |
JP4007960B2 (ja) * | 2002-02-20 | 2007-11-14 | ヤマハ発動機株式会社 | エンジンの締結構造 |
JP2004270774A (ja) * | 2003-03-07 | 2004-09-30 | Koyo Seiko Co Ltd | 軸受付プーリ |
JP2004278634A (ja) * | 2003-03-14 | 2004-10-07 | Honda Motor Co Ltd | 自動二輪車のクランクシャフト支持軸受における打音防止構造 |
-
2006
- 2006-05-17 JP JP2006137622A patent/JP4912740B2/ja active Active
-
2007
- 2007-05-16 CN CN200780017877XA patent/CN101449048B/zh not_active Expired - Fee Related
- 2007-05-16 EP EP07743442.1A patent/EP2028358B1/en not_active Not-in-force
- 2007-05-16 US US12/227,367 patent/US8186326B2/en not_active Expired - Fee Related
- 2007-05-16 WO PCT/JP2007/060007 patent/WO2007132876A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2007132876A1 (ja) | 2007-11-22 |
US8186326B2 (en) | 2012-05-29 |
JP2007309164A (ja) | 2007-11-29 |
US20090235893A1 (en) | 2009-09-24 |
CN101449048A (zh) | 2009-06-03 |
CN101449048B (zh) | 2011-07-20 |
EP2028358B1 (en) | 2018-03-21 |
EP2028358A1 (en) | 2009-02-25 |
EP2028358A4 (en) | 2013-05-15 |
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