Objet de la recherche «*».

The pressure loss Δp in a laminar (Re < 2300) flow, straight pipe is calculated from the length lp and the diameter dp of the line as well as from the density ρ and the speed of the fluid vf. Calculat

Hydraulic pump — mostly with a single piston — for manual operation. It is single-acting in most cases, i.e. priming occurs during the first section of the cycle and delivery during the second. With d

Hydraulic speed control during which the hydraulic fluid flowing out of the actuator is throttled, e.g. by a flow valve in the return pipe.

Variable issued by the controller output. To differentiate it from the correcting variable, it is given a subscript R (DIN 19 225). The controller output variable is only the correcting variable which

Stiction

On hydrostatic transmissions the transmission efficiency comprises the total efficiency of the pump and motor: From here the total power loss is obtained:

This term covers all combinations of electrical (electronic) signal processing with hydraulic drives. These combinations can be divided into three groups: Electro-hydraulic technology in which hydraul

As hydraulic systems have low inherent damping, additional measures must be taken to shorten the transient response. This is achieved by: Measures to convert energy, i.e. by throttling, friction or in

Describing function is the term used on non-linear transfer elements for the frequency response while only taking into account the fundamental oscillation of the , recorded or calculated for various c

On the usage of a flow control valve the actuator will jump slightly on switching on the flow rate before the flow rate set becomes effective. This movement is termed startup discontinuity. It is caus