Piston having centered pin hole and skirt profile

Details Piston having centered pin hole and skirt profile Piston having centered pin hole and skirt profile

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 1/04 (2006.01)

Patent

CA 2575141

A piston includes a piston body having a longitudinal central axis. A piston head is formed with a plurality of ring grooves and a pair of pin bosses depend from the head and are formed with a pair of pin bores that are centered on a common pin bore axis that intersects the longitudinal axis of the piston. Skirt Portions have outer surfaces with a longitudinal profile that is convexly shaped. A major diameter of the profile lies within +/- 2mm of the pin bore axis in both a cold and hot condition.

L'invention concerne un piston comprenant un corps de piston présentant un axe central longitudinal. Une tête de piston est dotée d'une pluralité de rainures annulaires et d'une paire de bossages dépendant de la tête et constitués d'une paire d'alésages de brochage centrés sur un axe d'alésage de brochage commun coupant l'axe longitudinal du piston. Les parties de jupe présentent des surfaces extérieures dont le profil longitudinal est formé de manière convexe. Un diamètre principal du profil est compris dans la plage de +/- 2mm de l'axe d'alésage, à la fois dans un état froid et dans un état chaud.

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