第五章柱塞泵柱塞泵是最古老的液压泵,但在各种现代设计的泵之中,它仍然是综合性最好的。柱塞泵,当高压和高容积效率是主要的要求的时候,实际上可用于各种用途。在柱塞泵中,可以很好的控制间隙。柱塞在缸中的长度以及它同缸之间的间隙都有助于减少泄漏。这种构造可比其它类型的泵得到较大的容积效率。一般说,柱塞泵有这些优点: The fifth chapter piston pump piston pump is the oldest hydraulic pump, but in a variety of modern design of the pump, it is still the most comprehensive. Piston pumps, when high pressure and high volumetric efficiency are the main requirements, can in fact be used for a variety of purposes. In the plunger pump, you can control the gap well. The length of the plunger in the cylinder and the gap between it and the cylinder help to reduce leakage. This configuration yields greater volumetric efficiency than other types of pumps. In general, the plunger pump has these advantages: