| 摘要 |
<p>The disclosure relates to a regulator cone (1) of substantially cylindrical form, on whose circumferential surface there are provided four V-shaped grooves (2, 3), whose cross-Sectional areas increase along the longitudinal axis of the regulator cone (1). Two of the grooves (2, 3), the primary grooves (2), extend along the entire active length of the regulator cone (1), and two of the grooves (2, 3), the secondary grooves (3), extend along that half of the active length of the regulator cone (1) where the primary grooves (2) have their largest cross-sectional area. <IMAGE></p> |
