Pre-charge of seals
Contact pressure of elastomer seals on the surfaces to be sealed, which arises when the seal is installed . To that end either –– as in lip seals — the lips are designed to be undersized or oversized,
Pre-load pressure
1. Pressure intentionally generated by a resistance in a system (e.g. in the outlet line of a system). 2. Pressure to which the oil in a tank is subjected if the suction of the pump requires this. To
Feed motion of a cylinder
After the acceleration and rapid phase of the cylinder the feed motion is introduced, in which a clearly defined velocity is to be observed. The force required here is determined by the working resist
Timer element
A distinction is made between: Binary timer elements: Switching element, which passes on binary input signals at a different time; Delay element: Timer element, which reflects the change of the input
Time-based control
Follow up control in which the reference variable is specified according to a time schedule (also called the schedule controller) (DIN 19 226 Part 5).
Time-based workflow control
Workflow control whose switching conditions depend only on time. For example, timer elements, time counters, gear shift drums with a constant rotation speed can be used to produce the switching condit
Time discrete
The signal parameter is only defined at clearly defined discrete times (or a series of discrete time intervals) (DIN 19 225). Example: Pulse or sensing systems, which query actual values in certain ti
Time-dependent control signals
Electrical signals which are issued depending on an adjustable time. Timer relays or timer switches are used for this. They are used if the preceding function is to be maintained for a period of time.
Annular gear pump/motor
Special form of internal gear pump , in which no sealing sickle is required, as the seal between the fixed gear ring and the rotor (planetary gear) is directly possible through the suitable design of
Gear pump flow meter
Device used for flow rate measurement (flow measurement) according to the displacement principle, which works like a geared motor . The flow rate to be measured rotates the pair of gears. This movemen