Hakuteksti "pumps".

still leakage paths, through which the pressure fluid can flow. The external leaked oil flow Q Le for pumps and motors flows out of the pressurised chambers into the housing; for cylinders it leaves via the [...] the devices from the high-pressure section to the low-pressure section, for example in the case of pumps from the high-pressure section to the suction section. The total oil leaked depends on the pressure

Design element that on piston pumps supports the piston at the sliding surface (swash plate, raceway). To reduce the contact force and therefore the friction the slipper is designed such that it can act

Refers to the supply and discharge of the pressure fluid in pumps/motors through the inside of the displacement unit. For example, with valve plate controlled radial piston machines where the pistons are

Measure of speed control, in which the variable pumps are used, which only deliver as much hydraulic fluid as required in the circuit. This keeps the power loss smaller than the control with throttle [...] multi-pump system may be more cost-effective, consisting of one variable pump and several constant pumps , which can then be connected as desired ( Figure P 37 ). As larger masses are to be moved in the

determined by the load pressure p L and the displacement V 2: In general, all pumps (with the exception of valve-controlled pumps) can now also be used as high-speed hydraulic motors. In addition, there is

Figure S 95 ). Stuffing boxes are used in hydraulics to seal off valve spindles and plunger pistons in pumps for pressurised water.

1 ). The radial gap compensation makes a significant contribution to allowing such internal gear pumps to work at pressures of 300 to 350 bar.

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 variables

rate to the theoretical flow rate based on the displacement kinematics and the rotation speed. For pumps: Effectively delivered flow rate Q 1eff to the theoretically delivered flow rate ( displacement volume

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 high torque motors