CYLINDER HEAD

PROBLEM TO BE SOLVED: To provide a cylinder head capable of preventing damage due to thermal stress generated from a glow plug.SOLUTION: A combustion surface 101 of a cylinder head 100 includes a tapered face 131 formed at the exit of a glow plug mounting hole 130 where chamfering is applied. Thus,...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI KOHEI, SHIRATO KIYOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cylinder head capable of preventing damage due to thermal stress generated from a glow plug.SOLUTION: A combustion surface 101 of a cylinder head 100 includes a tapered face 131 formed at the exit of a glow plug mounting hole 130 where chamfering is applied. Thus, even when rapid temperature rise is given to a glow plug 141 in the state that the cylinder head 100 is cooled down, there can be less crack occurrence because the exit of the glow plug mounting hole 130 where crack easily occurs conventionally is kept apart from the glow plug 141 and the member is shaped with no thin portion.SELECTED DRAWING: Figure 1 【課題】グロープラグから発生する熱応力による損傷を防止できるシリンダヘッドを提供すること。【解決手段】シリンダヘッド１００の燃焼面１０１は、グロープラグ取付穴１３０の出口においてテーパ面１３１が形成されており、面取りが施されている。これにより、シリンダヘッド１００が冷え切った状態でグロープラグ１４１が急速に昇温された場合でも、従来亀裂が生じ易かったグロープラグ取付穴１３０の出口をグロープラグ１４１から遠ざけ、かつ、部材が薄い部分が無い形状とされているので、亀裂の発生を抑制できる。【選択図】図１