Internal combustion engine

Details Internal combustion engine Internal combustion engine

F - Mech Eng,Light,Heat,Weapons

02

F

F02F 1/24 (2006.01) F01L 1/18 (2006.01) F01L 1/46 (2006.01) F02B 63/02 (2006.01) F02B 75/02 (2006.01) F02F 7/00 (2006.01)

Patent

CA 2220282

The internal combustion engine includes a cast cylinder head having as-cast alignment ribs (26, 28) that align a squared-off fulcrum (56) in the rocker assembly. The rocker arm (42) also has two substantially flat surfaces that engage the planar sides of the fulcrum (56) to minimize lateral movement of the rocker arm (42). The fulcrum (56) is received between the cast alignment ribs (26, 28). The ribs are biased from a major axis to insure proper fulcrum alignment during assembly without the use of a jig.

Ce moteur à combustion interne comporte une culasse coulée possédant des nervures d'alignement (26, 28) également coulées, permettant d'aligner un point d'appui carré (56) dans l'ensemble culbuteur. La tige du culbuteur (42) possède également deux surfaces sensiblement planes qui viennent au contact des cotés plats du point d'appui (56) afin de réduire au maximum son déplacement latéral. Le point d'appui (56) loge entre les nervures d'alignement coulées (26, 28). Ces nervures sont sollicitées à partir d'un axe principal afin d'assurer un alignement convenable du point d'appui lors de l'assemblage et ce, sans avoir à recourir à un gabarit.

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