Device for directly measuring on a piston the effective...

F - Mech Eng,Light,Heat,Weapons – 02 – B

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F02B 75/04 (2006.01) F02D 15/02 (2006.01)

Patent

CA 2681631

The invention relates to a device for measuring the effective volumetric ratio of at least one cylinder in a variable compression-ratio engine, that comprises at least one target passage sensor (91) attached on the cylinder casing (100) and detecting the passage of at least one target (92) connected to the piston (2) of said engine, said target passage sensor interacting with at least one angular position sensor of the crankshaft (93) of said engine, and one calculator (94).

Le dispositif permettant de mesurer le rapport volumétrique effectif d'au moins un cylindre d'un moteur à taux de compression variable comprend au moins un capteur de passage de cible (91) fixé sur le carter cylindre (100) qui détecte le passage d'au moins une cible (92) solidaire du piston (2) dudit moteur, ledit capteur de passage de cible (91) coopérant avec au moins un capteur de position angulaire de vilebrequin (93) dudit moteur, et un calculateur (94).

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