What is a characteristic of constant displacement pumps?

A characteristic of constant displacement pumps is that they displace a constant fluid output for any rotational speed. This means that regardless of the speed at which the pump is operating, it will deliver a consistent volume of fluid with each cycle. This consistency makes constant displacement pumps ideal for applications where a steady flow is critical, such as hydraulic systems or certain types of lubrication systems.

The nature of how these pumps operate is important in understanding their applications, as they do not adjust the fluid output based on the system demands. Instead, they provide a fixed output, which can be beneficial in systems where uniform flow is necessary. This characteristic allows for predictable performance, making it easier to design systems around their use.

Furthermore, while constant displacement pumps can generate high pressure depending on the system design and load, this is not their primary defining feature. The ability to work effectively in both low and high-pressure systems broadens their applicability, but their fundamental operation focuses on the consistent volume of fluid they move, regardless of pressure changes in the system.