Objet de la recherche «*».

In order to keep the operating temperature of oil-hydraulic systems as constant as possible, it is necessary to use an oil cooler to dissipate any heat losses that cannot escape through thermal radiat

The part of a hydraulic cylinder upon which the pressure of the medium acts and thereby generates a compressive force. F K = p 1 · A K — p 2 · A R Since friction occurs during the piston movement (par

Feature on hydraulic pumps of piston and vane design on which the delivery flow follows an arbitrary defined setpoint in accordance with a reference variable s by regulating out the disturbance variab

In the case of continuously adjustable directional valves and flow control valves: Dependence of the flow rate on the input signal given an constant valve pressure difference (DIN 24 311) ( Figure V 3

Filter element , which is replaced by a new element after a certain operating time or at a given flow resistance. The contaminated filter element must be disposed of in an environmentally-friendly man

Influencing a prescribed setpoint to improve the pilot control behaviour in . Example: Measures to limit the acceleration of a system or attach a preliminary filter.

All measures which a manufacturer of hydraulic pumps can take to keep the amount of noise generated as low as possible. Alternative: secondary noise reduction measures

Energy stored in a pressure fluid compressed at the pressure p. The storage of energy within a volume of gas or fluid as a result of pressure is comparable to the storage of energy when a mechanical s

Feature on hydraulic pumps of piston and vane design that changes the delivery flow in accordance with an input variable. On the pump this is a distance s that can be specified in various ways (Figure

For the control movements of a pilot-controlled valve the necessary pressure fluid is drawn from the same circuit. For this reason a separate control oil circuit is not necessary. As a rule, however,