JP6015185B2 - 内燃機関のピストン構造 - Google Patents
内燃機関のピストン構造 Download PDFInfo
- Publication number
- JP6015185B2 JP6015185B2 JP2012159565A JP2012159565A JP6015185B2 JP 6015185 B2 JP6015185 B2 JP 6015185B2 JP 2012159565 A JP2012159565 A JP 2012159565A JP 2012159565 A JP2012159565 A JP 2012159565A JP 6015185 B2 JP6015185 B2 JP 6015185B2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- recess
- heat shield
- shield film
- internal combustion
- 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
Links
Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
- F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
-
- 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
- F02F3/10—Pistons having surface coverings
- F02F3/12—Pistons having surface coverings on piston heads
- F02F3/14—Pistons having surface coverings on piston heads within combustion chambers
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/048—Heat transfer
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
21 頂部
22 遮熱膜
24 凹部
25 オーバーハング部
Claims (2)
- ピストンの頂部に形成され、前記ピストンの内部への熱伝達を抑制するための遮熱膜と、前記ピストンの頂部に前記ピストンの外周部から間隔を隔てて設けられる凹部とを備え、
前記凹部の末端部には、前記凹部の内周壁面を前記ピストンの径方向内側に傾斜させたオーバーハング部と、前記凹部の他の部分よりも深くされる深底凹部と、が設けられ、
前記遮熱膜の末端部分が前記凹部に配設されて前記深底凹部に位置する前記遮熱膜の膜厚が前記凹部の他の部分に位置する前記遮熱膜の膜厚よりも前記深底凹部の深さ分だけ厚くされる
ことを特徴とする内燃機関のピストン構造。 - 前記凹部に形成される前記遮熱膜の外表面は、前記ピストンの頂部の表面と面一とされ又は前記ピストンの頂部の表面よりも低くなるように形成される請求項1に記載の内燃機関のピストン構造。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012159565A JP6015185B2 (ja) | 2012-07-18 | 2012-07-18 | 内燃機関のピストン構造 |
PCT/JP2013/069396 WO2014014022A1 (ja) | 2012-07-18 | 2013-07-17 | 内燃機関のピストン構造 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012159565A JP6015185B2 (ja) | 2012-07-18 | 2012-07-18 | 内燃機関のピストン構造 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014020283A JP2014020283A (ja) | 2014-02-03 |
JP6015185B2 true JP6015185B2 (ja) | 2016-10-26 |
Family
ID=49948846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012159565A Expired - Fee Related JP6015185B2 (ja) | 2012-07-18 | 2012-07-18 | 内燃機関のピストン構造 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6015185B2 (ja) |
WO (1) | WO2014014022A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6293317B1 (ja) * | 2017-01-12 | 2018-03-14 | 株式会社新エィシーイー | ピストン |
US10941727B2 (en) | 2017-04-04 | 2021-03-09 | Nissan Motor Co., Ltd. | Piston |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6027820B2 (ja) * | 1978-05-22 | 1985-07-01 | 三菱重工業株式会社 | 内燃機関の燃焼室構成部材の製造方法 |
JPS5965961U (ja) * | 1982-10-25 | 1984-05-02 | 日産ディーゼル工業株式会社 | 内燃機関のピストン |
JPS60206958A (ja) * | 1984-03-30 | 1985-10-18 | Hino Motors Ltd | 内燃機関用ピストン |
JPH023677Y2 (ja) * | 1984-11-02 | 1990-01-29 | ||
JPS61126360A (ja) * | 1984-11-26 | 1986-06-13 | Mitsubishi Heavy Ind Ltd | ピストンの溶射皮膜形成方法 |
JPS61132757A (ja) * | 1984-11-30 | 1986-06-20 | Suzuki Motor Co Ltd | セラミツクス溶射ピストン |
JPS62186043A (ja) * | 1986-02-10 | 1987-08-14 | Toyota Motor Corp | セラミツク溶射ピストン |
JP2547815B2 (ja) * | 1988-03-10 | 1996-10-23 | 住友電気工業株式会社 | 内燃機関用ピストン |
US5239955A (en) * | 1993-01-07 | 1993-08-31 | Ford Motor Company | Low friction reciprocating piston assembly |
JPH0777105A (ja) * | 1993-07-16 | 1995-03-20 | Isuzu Motors Ltd | 副室を備えたピストンの構造 |
JPH08284666A (ja) * | 1995-04-17 | 1996-10-29 | Yamaha Motor Co Ltd | 副燃焼室を備えるエンジン |
JP3846811B2 (ja) * | 1995-12-19 | 2006-11-15 | 株式会社小松製作所 | 内燃機関用ピストン |
JPH09289848A (ja) * | 1996-04-26 | 1997-11-11 | Daiwa Seiko Inc | 釣り竿 |
DE10029810A1 (de) * | 2000-06-16 | 2001-12-20 | Mahle Gmbh | Kolben für Dieselmotoren |
US7802553B2 (en) * | 2005-10-18 | 2010-09-28 | Gm Global Technology Operations, Inc. | Method to improve combustion stability in a controlled auto-ignition combustion engine |
JP4761374B2 (ja) * | 2006-03-31 | 2011-08-31 | 日本ピストンリング株式会社 | 内燃機関用ピストンリング |
JP2008267599A (ja) * | 2007-03-29 | 2008-11-06 | Toyoda Gosei Co Ltd | ピストン及びその製造方法 |
JP2010156230A (ja) * | 2008-12-26 | 2010-07-15 | Isuzu Motors Ltd | エンジンのピストン |
JP2010185291A (ja) * | 2009-02-10 | 2010-08-26 | Toyota Central R&D Labs Inc | 遮熱膜及びその形成方法 |
-
2012
- 2012-07-18 JP JP2012159565A patent/JP6015185B2/ja not_active Expired - Fee Related
-
2013
- 2013-07-17 WO PCT/JP2013/069396 patent/WO2014014022A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2014020283A (ja) | 2014-02-03 |
WO2014014022A1 (ja) | 2014-01-23 |
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