| 摘要 |
<p>A continuously variable transmission has a drive pulley, with an annular groove (53) formed in an annular housing (51) on a side of the drive pulley, and a pitot tube (55) provided in the annular groove (53). The pitot tube has an elliptic section (53), and the major axis of the ellipse is arranged in substantially a tangetial direction of an annular flow of oil in the groove (53). An open end (55d) of the pitot tube (55) faces the flow of oil in the groove (53).</p> |
