Piston blank

The utility model provides a piston blank. The piston blank comprises a head part and a skirt part connected with the head part, a pin seat with a pin hole is arranged on the skirt part, and an arc-shaped protruding part is arranged at the bottom of the skirt part; a first positioning spigot is form...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAN QINGYA, HUANG ZUDONG, YU ZHONGRONG, DAI LINGFENG, HU YIMING
Format:	Patent
Sprache:	chi ; eng
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:	The utility model provides a piston blank. The piston blank comprises a head part and a skirt part connected with the head part, a pin seat with a pin hole is arranged on the skirt part, and an arc-shaped protruding part is arranged at the bottom of the skirt part; a first positioning spigot is formed in the bottom end face of the arc-shaped protruding part; a second positioning spigot is formed in the bottom end face of the pin base. Compared with the prior art, according to the piston blank provided by the utility model, not only is the first positioning spigot formed in the bottom end face of the arc-shaped protruding part, but also the second positioning spigot is formed in the bottom end face of the pin seat, so that when the piston blank is machined, the piston blank is not prone to deformation; through the combination of the first positioning seam allowance and the second positioning seam allowance, the stability of the piston blank in the machining process can be effectively guaranteed, the machining