PISTON

PROBLEM TO BE SOLVED: To reduce a quenching region without reducing compressibility.SOLUTION: A piton 100 which slides in a cylinder bore 12 includes a top ring groove formed in an outside face 104 so that a top ring 21 is mounted therein, and a top land part 112 formed as part of the outside face 1...

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Bibliographische Detailangaben
1. Verfasser:	NAKAJI TAKAYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce a quenching region without reducing compressibility.SOLUTION: A piton 100 which slides in a cylinder bore 12 includes a top ring groove formed in an outside face 104 so that a top ring 21 is mounted therein, and a top land part 112 formed as part of the outside face 104 ranging from a crest surface 102 to the top ring groove, and having a larger surface area per unit length in the axial direction than other parts of the outside face. As a result, carbon C produced by the combustion of fuel in a combustion chamber is easily adhered to the top land part 112.SELECTED DRAWING: Figure 3 【課題】圧縮率を低下させることなく、クエンチング領域を減少させる。【解決手段】シリンダボア１２内で摺動するピストン１００であって、外側面１０４に形成された、トップリング２１が装着されるためのトップリング溝と、外側面１０４における冠面１０２からトップリング溝までの間であって、外側面における他の部分よりも軸方向における単位長さ当たりの表面積が大きいトップランド部１１２と、を備えることにより、燃焼室で燃料が燃焼することにより生成されたカーボンＣがトップランド部１１２に付着しやすくなる。【選択図】図３