| 摘要 |
<p>A continuously variable transmission having a flat belt (13, 43) extending between driving (11, 40) and driven (12, 41) pulley assemblies, each having a circumferential array of radially adjustable belt engaging elements (18, 64, 65). The radial positions of the belt engaging elements (18, 64, 65) of each pulley assembly (11, 40, 41) depend upon the angular relationship between inner (21, 22, 45, 47) and outer (19, 23, 46, 48) guideway disk structures carrying logarithmic spiral guideways (24, 25 - 26, 27) oriented in the opposite sense, the resulting intersections of the spiral guideways supporting bearing regions (29) at the ends of the belt engaging elements (18). Each pulley assembly includes a power consuming element, such as an oil pump (55, 57), which is coupled through a harmonic drive (50, 51), to the inner (45, 47) and outer (46, 48) guideway disks and to the power consuming element.</p> |
