镶在转子上的油封件、端面密封条、角密封销和顶密封片的端面,都在盖板表面上滑动。该表面相当于往复式发动机的气缸套。因此各摩擦副材料的摩擦特性是很重要的。为减轻端盖重量,改善冷却效果,使用了铝合金,牌号为γ硅铝明(Al4A),元素成份列于表1。这种合 The oil seal, the face seal, the corner seal pin, and the end face of the top seal mounted on the rotor all slide on the cover surface. This surface is equivalent to a reciprocating engine cylinder liner. Therefore, the friction characteristics of each friction material is very important. In order to reduce the weight of the end cap and improve the cooling effect, the aluminum alloy is used, the grade is Al4A, and the elemental composition is shown in Table 1. This combination