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Invention Grant
US09581241B2 Plastic primary piston with insert for a tandem penetration-type master cylinder and a master cylinder equipped with such a piston 有权
塑料主活塞带有插入式，用于串联穿透式主缸和装有这种活塞的主缸

Plastic primary piston with insert for a tandem penetration-type master cylinder and a master cylinder equipped with such a piston
Abstract:
A primary piston of molded plastic material equipped with a metallic insert and having grooves, mounted in a master cylinder comprising at least a primary piston and a secondary piston mounted in the bore hole of the master cylinder. These pistons can create pressure, respectively, in a primary pressure chamber and in a secondary pressure chamber due to the action of a push rod on the primary piston.
Abstract(Chinese):

模制塑料材料的主活塞装配有金属插入件并具有凹槽，安装在主缸中，该主缸至少包括安装在主缸的钻孔中的主活塞和次活塞。 这些活塞可以在一次压力室和二次压力室中分别产生压力，这是由于推杆在主活塞上的作用。

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