DRIVE MECHANISM, AND VALVE SYSTEM DRIVE MECHANISM FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a drive mechanism comprising endless transmitting bodies 23L, 23R wrapped around between each of circular driving side rotors 21L, 21R and each of circular driven side rotors 22L, 22R, and tension adjusting tensioners 24L, 24R provided on loose side linear portions 26 of the transmitting bodies 23L, 23R, wherein structural elements (driving side rotors 21L, 21R) are manufactured in a relatively easy and inexpensive manner for actually functioning to suppress the warping of the transmitting bodies 23L, 23R. SOLUTION: The driving side rotors 21L, 21R have rotational axes P1, P2at positions eccentric from their curvature centers O1, O2. The driving side rotors 21L, 21R are assembled so that a curvature center distance I from each of the curvature centers O1, O2of the driving side rotors 21L, 21R to each of curvature centers O3, O4of the driven side rotors 22L, 22R is the maximum when conditions of generating the warping of a tension side linear portion 26 of each of the transmitting bodies 23L, 23R are established. COPYRIGHT: (C)2009,JPO&INPIT