Valve mechanism for an internal combustion engine

Details Valve mechanism for an internal combustion engine Valve mechanism for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons

01

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F01L 1/08 (2006.01) F01L 13/00 (2006.01)

Patent

CA 2537162

A valve gear of an internal combustion engine, wherein when a zone for one of the positive and negative accelerations of a rotating cam is set to be used by a ramp part, the ramp part is formed in a curved shape so that the lift amount of a swing cam per unit swing angle can generate the other positive or negative acceleration so that a valve lift speed at the portion of the valve corresponding to the ramp part is made generally constant.

Cette invention concerne un train de soupape pour moteur thermique dans lequel une zone pour une des accélérations positives et des accélérations négatives d'une came tournante est conçue pour servir de rampe. La rampe présente une forme courbe telle que l'ampleur de la levée de la came oscillante par angle d'oscillation unitaire peut générer l'autre accélération positive ou négative. Ainsi la vitesse de levée de la soupape correspondant à la rampe est généralement constante.

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