The heater has a radiator accommodated in a housing and comprising two contact plates (28, 30), and a disk-shaped heating element e.g. positive temperature coefficient resistor element (32), arranged between the contact plates. The radiator is fixed at the...

The device has a current-conducting unit electrically contacted by a plug (20) that is engaged in a plug portion (16) of a heating unit. A coupling piece (6) is attached to a terminal (4), and moves and holds a locking part (54) in a released position in i...

The system has separate electronic switching devices (MF1-MF3) provided for electrical heating elements (RH1-RH3) and controlling power consumption of the elements. The system synchronizes rising flank of output voltage of one switching device with descend...

The method involves controlling power consumption of a positive temperature coefficient heater (24) for adjusting target temperature by mass flow rate (4). Partial current (8) of the mass flow rate is diverted and is guided by the positive temperature coef...

The extraction unit (1) for the extracting of a fluid from a tank (6) is inserted into the tank via an assembly opening (8) and has an immersible body (4) equipped with an extraction pipe and a heat exchanger. A heat exchanger extension (5) in the fitted s...