JPH04502501A - 内燃機関用の軽量筒形ピストン - Google Patents
内燃機関用の軽量筒形ピストンInfo
- Publication number
- JPH04502501A JPH04502501A JP2500129A JP50012990A JPH04502501A JP H04502501 A JPH04502501 A JP H04502501A JP 2500129 A JP2500129 A JP 2500129A JP 50012990 A JP50012990 A JP 50012990A JP H04502501 A JPH04502501 A JP H04502501A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pressure side
- range
- piston body
- cylindrical
- 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.)
- Granted
Links
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
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
-
- 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
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
- F02F3/025—Pistons having means for accommodating or controlling heat expansion having circumferentially slotted piston skirts, e.g. T-slots
-
- 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
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
- F02F3/022—Pistons having means for accommodating or controlling heat expansion the pistons having an oval circumference or non-cylindrical shaped skirts, e.g. oval
-
- 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
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims (7)
- 1.内燃機関用の軽量筒形ピストンであって、L=ピストンの最大長 D=ピストンの量大直径 H=圧縮高さ A=ピストンの順側圧側でピストン胴部高さのほぼ等しい少なくとも45°の周 方向範囲を、ピストン縦軸線を通ってピストンピン軸線に対して垂直に延びる平 面の両側にほぼ対称的に分割した場合に、前記周方向範囲における最下位リング 溝より下の、ピストン胴部最大高さ T=半径方向外寄りのポス孔両端の直径方向相互間隔とすれば、ピストン寸法が L/D=0.45〜0.8 H/D=0.25〜0.5 A/D=0.30〜0.5 T/D=0.45〜0.8であり、かつピストン胴部がピストン軸線方向ではク ラウニング状に、また周方向では楕円形状に形成されており、かつ該楕円形の長 軸がピストンの順側圧一逆側圧方向に延びており、かつピストン胴部に設けられ ているピストンピン用のボス孔軸線がピストンの順側圧側寄リに僅かにずらされ ている(ピストンピン軸線の偏位)形式の筒形ピストンにおいて、ピストン胴部 の上部区域が、ピストンピン軸線とピストン縦軸線とを通る平面の、逆側圧側に 位置する方の範囲(GDS側範囲)においてだけ、1つの水平方向のスリットに よってピストンヘッドから区切られていることを特徴とする、内燃機関用の軽量 筒形ピストン。
- 2.ピストン胴部が極平面内において逆側圧側(GDS)範囲では、順側圧側( DS)範囲よりも大きな楕円曲率を有している、請求項1記載の筒形ピストン。
- 3.ピストン胴部の逆側圧側(GDS)範囲寄りの、最下位リング溝に接する上 部区域のクラウニング曲率が、順側圧側(DS)範囲よりも小さい、請求項1又 は2記載の筒形ピストン。
- 4.順側圧側範囲におけるピストン胴部の長さが逆側圧側範囲よりも長い、請求 項1から3までのいずれか1項記載の筒形ピストン。
- 5.順側圧側のピストン胴部肉厚が逆側圧側のピストン胴部肉厚よりも大である 、請求項1から4までのいずれか1項記載の筒形ピストン。
- 6.ピストン胴部の逆側圧側範囲には、ピストン胴部周方向にストリップ状に延 びる歪み調整用の挿入体が設けられており、該挿入体が、ピストン胴部の熱膨張 係数よりも低い熱膨張係数の材料から成っている、請求項1から5までのいずれ か1項記載の筒形ピストン。
- 7.順側圧側にも歪み調整用のストリップ状挿入体が設けられており、該挿入体 が、逆側圧側の挿入体よりもピストン胴部上端から大きな距離を有している、請 求項3記載の筒形ピストン。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3843761A DE3843761A1 (de) | 1988-12-24 | 1988-12-24 | Leichter tauchkolben fuer verbrennungsmotoren |
DE3843866.6 | 1988-12-24 | ||
DE3843866A DE3843866A1 (de) | 1988-12-24 | 1988-12-24 | Leichter tauchkolben fuer verbrennungsmotoren |
DE3843761.9 | 1988-12-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04502501A true JPH04502501A (ja) | 1992-05-07 |
JP2983621B2 JP2983621B2 (ja) | 1999-11-29 |
Family
ID=25875633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2500129A Expired - Fee Related JP2983621B2 (ja) | 1988-12-24 | 1989-11-29 | 内燃機関用の軽量筒形ピストン |
Country Status (7)
Country | Link |
---|---|
US (1) | US5158008A (ja) |
EP (1) | EP0449848B1 (ja) |
JP (1) | JP2983621B2 (ja) |
KR (1) | KR970003153B1 (ja) |
BR (1) | BR8907852A (ja) |
DE (1) | DE58906955D1 (ja) |
WO (1) | WO1990007642A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931949A1 (de) * | 1989-09-25 | 1991-04-04 | Alcan Gmbh | Kolben fuer einen verbrennungsmotor |
DE4110306A1 (de) * | 1990-09-20 | 1992-03-26 | Mahle Gmbh | Tauchkolben aus leichtmetall fuer ottomotoren |
JPH06257507A (ja) * | 1993-03-09 | 1994-09-13 | Nissan Motor Co Ltd | 内燃機関のピストン |
DE4326978A1 (de) * | 1993-08-11 | 1995-02-16 | Alcan Gmbh | Kolben für Brennkraftmaschinen, insbesondere für Dieselmotoren |
JP3541511B2 (ja) * | 1995-07-07 | 2004-07-14 | いすゞ自動車株式会社 | ピストン |
DE19643778C2 (de) * | 1996-10-23 | 2000-04-13 | Alcan Gmbh | Leichtbaukolben |
WO2007056044A1 (en) * | 2005-11-03 | 2007-05-18 | Dresser, Inc. | Piston |
US7302884B2 (en) * | 2005-11-03 | 2007-12-04 | Dresser, Inc. | Piston |
US7293497B2 (en) * | 2005-11-03 | 2007-11-13 | Dresser, Inc. | Piston |
US8807109B2 (en) * | 2009-11-06 | 2014-08-19 | Federal-Mogul Corporation | Steel piston with cooling gallery and method of construction thereof |
US9970384B2 (en) * | 2009-11-06 | 2018-05-15 | Federal-Mogul Llc | Steel piston with cooling gallery and method of construction thereof |
US9470311B2 (en) | 2012-06-14 | 2016-10-18 | Mahle International Gmbh | Lightweight engine power cell assembly |
KR101936468B1 (ko) * | 2016-10-11 | 2019-01-08 | 현대자동차주식회사 | 윤활성능 개선을 위한 피스톤 어셈블리 |
CN214787659U (zh) * | 2020-11-20 | 2021-11-19 | 浙江春风动力股份有限公司 | 一种水冷式摩托车发动机及采用该发动机的摩托车 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS601942B2 (ja) * | 1982-04-15 | 1985-01-18 | 三菱マテリアル株式会社 | 高温特性のすぐれた切削工具および耐摩耗工具用焼結材料 |
JPS6332150A (ja) * | 1985-07-27 | 1988-02-10 | マ−レ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 内燃機関のためのピストン |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1499073A (en) * | 1919-09-04 | 1924-06-24 | Aluminum Co Of America | Piston |
GB1256242A (en) * | 1968-09-05 | 1971-12-08 | Ass Eng Ltd | Improvements in pistons |
US3908521A (en) * | 1972-07-31 | 1975-09-30 | Hepworth & Grandage Ltd | Pistons for internal combustion engines or for compressors |
DE3430132A1 (de) * | 1984-08-16 | 1986-02-27 | Mahle Gmbh, 7000 Stuttgart | Aluminium-tauchkolben fuer verbrennungsmotoren mit regelstreifen |
DE3430258A1 (de) * | 1984-08-17 | 1986-02-27 | Mahle Gmbh, 7000 Stuttgart | Tauchkolben fuer verbrennungsmotoren |
IT1182507B (it) * | 1985-07-12 | 1987-10-05 | Ae Borgo Spa | Pistoni con profilo asimmetrico per motori a combustione interna |
DE3820473C2 (de) * | 1986-12-18 | 1998-03-26 | Mahle Gmbh | Leichter Tauchkolben für Verbrennungsmotoren |
US5048398A (en) * | 1986-12-23 | 1991-09-17 | Mahle Gmbh | Single, light-weight and low friction light-metal piston for internal-combustion engines |
US5000078A (en) * | 1987-04-18 | 1991-03-19 | Mahle Gmbh | Light metal trunk piston for internal combustion engines |
JPS6457461A (en) * | 1987-08-28 | 1989-03-03 | Canon Kk | Recorder |
-
1989
- 1989-11-29 US US07/688,583 patent/US5158008A/en not_active Expired - Lifetime
- 1989-11-29 JP JP2500129A patent/JP2983621B2/ja not_active Expired - Fee Related
- 1989-11-29 BR BR898907852A patent/BR8907852A/pt not_active IP Right Cessation
- 1989-11-29 EP EP89912953A patent/EP0449848B1/de not_active Expired - Lifetime
- 1989-11-29 WO PCT/DE1989/000745 patent/WO1990007642A1/de active IP Right Grant
- 1989-11-29 KR KR1019900701873A patent/KR970003153B1/ko not_active IP Right Cessation
- 1989-11-29 DE DE89912953T patent/DE58906955D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS601942B2 (ja) * | 1982-04-15 | 1985-01-18 | 三菱マテリアル株式会社 | 高温特性のすぐれた切削工具および耐摩耗工具用焼結材料 |
JPS6332150A (ja) * | 1985-07-27 | 1988-02-10 | マ−レ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 内燃機関のためのピストン |
Also Published As
Publication number | Publication date |
---|---|
WO1990007642A1 (de) | 1990-07-12 |
US5158008A (en) | 1992-10-27 |
EP0449848A1 (de) | 1991-10-09 |
KR970003153B1 (ko) | 1997-03-14 |
EP0449848B1 (de) | 1994-02-09 |
BR8907852A (pt) | 1991-10-08 |
JP2983621B2 (ja) | 1999-11-29 |
DE58906955D1 (de) | 1994-03-24 |
KR910700404A (ko) | 1991-03-15 |
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