| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an improved new closed cavity piston by applying the most advanced technology. <P>SOLUTION: This closed cavity piston made from a metal injection molding process, has an elongated cylindrical body with a first end that is adapted to receive a slipper. The piston also has at least one hollow compartment and a hollow stem that transports hydraulic fluid. After the metal injection molding process, an end cap having a central opening is sinterbonded to a second end part of the body. The central opening aligns with the hollow stem to provide a fluid outlet. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
