{"id":2618,"date":"2024-03-07T16:06:07","date_gmt":"2024-03-07T15:06:07","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/displacement\/"},"modified":"2026-04-15T10:52:51","modified_gmt":"2026-04-15T08:52:51","slug":"displacement","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/displacement\/","title":{"rendered":"Displacement"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Displacement as a Basis for Flow Calculation<\/h1>

Displacement<\/a> is the amount of hydraulic fluid<\/a> that a hydraulic motor<\/a> requires for one working stroke. This volume is used for the design of radial piston motors. Displacement<\/a> is a type-specific piece of information. It must be provided by the manufacturer, as it is one of the foundations for calculating the entire hydraulic system<\/a>. <\/p>

Displacement in Radial Piston Motors<\/h2>

Hydraulic radial piston motors can have very different designs. The calculation of displacement<\/a> therefore heavily depends on the motor’s design. <\/p>

Displacement<\/a> is also used for calculating pumps and turbines in water technology. Fundamentally, displacement<\/a> is calculated based on the cavity in the radial piston motor that is completely filled with hydraulic fluid during one revolution. <\/p>

Only the actually circulated amount counts towards the displacement<\/a>. To ensure that the actual value of this characteristic is correct, for complex motors, the displacement<\/a> is usually also determined empirically. <\/p>

Calculated Dependencies of Displacement<\/h3>

The displacement<\/a> V has calculated dependencies on the following hydraulic parameters:<\/p>