| 摘要 |
<p>A friction plate (10) for a friction engagement device has a pattern of radial grooves (16), inclined from the inner edge of the plate to the outer edge which devide the plate into friction material segments (15). A pair of radially spaced connecting grooves (20,22) traverse each segment to connect the radial grooves which define the segment, and are staggered radially from the pairs of connecting grooves (24,26) of the adjacent segments, so that the grooves of adjacent pairs alternate in radial location across the radial groove which divides them. In another embodiment, tangential grooves form a regular polygon inscribing the outer edge of the friction plate (34). In both embodiments, oil traverses the surface of the plate from the inner diameter edge to the outer diameter edge by a serpentine route alternating between the radial grooves and the connecting or tangential grooves. <IMAGE> <IMAGE></p> |
