Plug-in connection
Connection for hoses in accordance with DIN 20 043, which is quick to fit without the use of tools and can be detached.
Continuous pressure
Constant pressure with which a device or a system can be loaded during the intended lifetime in defined operating conditions (DIN 24 312).
Two-position valve
Valve with two switching positions. In the case of the directional valves these are 2/2, 3/2 and 4/2 directional valves.
Corner power
M 2 · 2πn 2. On constant pumps and variable pumps with pressure controller the corner power is also the power to be installed. On variable pumps with power controller the system is always configured to
Binary
on/off, O/ L or 0/1. The binary numerical system has the base 2. With n binary signals it is possible to define 2n states. Therefore, e.g., with n = 8 = 28 there are 256 possible states. Binary technology forms
High speed motors
Hydraulic motors which permit at least 1,000 min--1 as the upper rotation speed limit, with the lowest rotation speed determined by the hydraulic-mechanical efficiency factor. In the case of uncontrolled [...] 500 min--1 for gear motors and 50 to 100 min--1 in the case of piston motors. It remains identical with hydraulic pumps of the same construction type (gear, vane , piston machines ). Opposite: Slow speed
Pipe inductance
based on the mass inertia associated with the fluid. The following equation can be written for the change in flow rate dQ/dt, based on a given pressure difference Δp: With a pipe of length l and cross section
Copying attachment
response proportional valve . With single-axis copying, only the transverse axis is actuated hydraulically, while the longitudinal axis is actuated via the feed spindle. With double-axis copying, both axis
Planetary motor
motors which operate in accordance with the planetary principle. The distinguishing feature of planetary motors is how lots of displacement chambers are created with each revolution, which results in very
Centring by springs
The valve control spools on three way valves are, with the exception of very large nominal diameters, placed in the centre position and maintained there by two springs as soon as the solenoid force or [...] or the pilot pressure is zero (Figure F 3) . These springs define, along with the flow forces, the switching power (switching speed) of the valve. At the same time they are used to reset the outer switching