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Variable present at the controller input. To distinguish it from the control variable it is given a subscript R. The controller input variable is rarely identical to the control variable x. In general

1. Providing the air is dissolved in the oil, it will not affect its characteristics. 2. Undissolved air, i.e. bubbles, cause the following: signs of corrosion on pumps and controls, increased compres

Various processes are controlled such that they take place at the same time. Applied to the synchronisation of cylinders often used in hydraulics, this means: a circuit that controls two or more cylin

Actuation of a fluid-based device by a solenoid with a stroke that is transferred directly to the device and triggers there an actuation (e.g. switching directional valve ) (Figure E 24) . In this way

Coefficient of a linear differential equation that describes the transfer function of a system with the parameters damped natural frequency and damping D as the result. d is determined from the measur

Pressure difference that occurs on a new, clean filter, if a specific flow rate is passed through it. It is dependent on the layout of the filter element and the filtration grade as well as the viscos

Circuit for a self-contained function, which is, however, also supplied by the main pump. If a subcircuit works at a lower pressure than the main circuit, a pressure-reducing valve is placed at the in

HWBF

Pump (motor) with several pistons (as rule 7 to 11) that are arranged parallel to the drive shaft. The pistons are actuated by a swash plate or a drive flange ( inclined axis ). These two designs diff

For two orifices with diameters d1 and d2 which are connected in parallel or in sequential, the diameter dE of a replacement orifice can be calculated. For sequential configuration the replacement ori