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发明授权
US5911641A Chain Tensioner and improved plunger retention thereof 失效
链式张紧器和其柱塞保持力

Chain Tensioner and improved plunger retention thereof
摘要：
A chain tensioner (19) having a housing (23) and a plunger (29), in which the housing includes a mounting surface (39) to be in face-to-face relationship with a wall surface (35) of the engine block (E). The tensioner includes a retainer member (43;81) having a retaining portion (55;85) and a wall-engaging portion (41;87). Before assembly, the retaining portion (55;85) engages a shoulder (65) on the plunger (29) to keep it within its bore (25) When the housing (23) of the tensioner is bolted to the engine block (E), the wall-engaging portion (41;87) engages the wall surface (35), and tightening of the bolts gradually moves the retaining portion (55;85) to a position in which it no longer engages the plunger (29), thus permitting the plunger to move outward of its bore.
摘要（中）：

具有壳体（23）和柱塞（29）的链条张紧器（19），其中所述壳体包括与所述发动机缸体的壁表面（35）面对面关系的安装表面（39） （E）。 张紧器包括具有保持部分（55; 85）和壁接合部分（41; 87）的保持器构件（43; 81）。 在组装之前，保持部分（55; 85）接合柱塞（29）上的肩部（65），以将其保持在其孔（25）内。当张紧器的壳体（23）螺栓连接到发动机缸体（E） ，所述壁接合部分（41; 87）接合所述壁表面（35），并且所述螺栓的紧固将所述保持部分（55; 85）逐渐移动到其不再接合所述柱塞（29）的位置，因此 允许柱塞向其孔的外侧移动。

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