公开(公告)号：US06544007B2

公开(公告)日：2003-04-08

申请号：US09865057

申请日：2001-05-24

申请人： Frank Gethöfer ,  Wolfgang Reuter ,  Ralf Zischka

发明人： Frank Gethöfer ,  Wolfgang Reuter ,  Ralf Zischka

IPC分类号： F04B104

CPC分类号： F04B1/0404 ,  F04B49/24

摘要： Described is a radial piston pump with a pump housing (3), which has a plurality of cylinder bores (5) arrayed in star shape around a cam (4), for the reception of pistons (6) and possesses inlet (7) and outlet (8) when penetrate to each cylinder inner chamber (9) with a therein compressible working volume. In accord with the invention, each cylinder inner chamber (9) is provided with at least one relief opening, which connects the working volumes during a compression stroke of the piston (6) with a space of lesser pressure for the reduction of the pressure gradient and also thereby reducing the noise of the pump.

摘要翻译： 描述了具有泵壳体（3）的径向柱塞泵，其具有围绕凸轮（4）以星形排列的多个气缸孔（5），用于接收活塞（6）并具有入口（7）和 出口（8）在其中具有可压缩的工作容积时渗透到每个气缸内腔（9）。 根据本发明，每个气缸内腔（9）设置有至少一个卸压开口，其在活塞（6）的压缩冲程期间将工作容积与较低压力的空间连接以降低压力梯度 并因此降低了泵的噪音。