Adjustable fluid friction clutch for power regulation of coolant pump and for use in drive for driving coolant pump, has a propelled side and driven off side, which are separated from each other

摘要

The adjustable fluid friction clutch (100) has a propelled side (102) and a driven off side (104), which are separated from each other by a gap that is filled with liquid. A separating wall (106) is provided between a storage space (108) for the liquid and the gap. The separating wall has a valve to control fluid flow between the storage space and the gap. A controlling element is arranged at the gap. An independent claim is also included for a drive for driving a coolant pump, which has a fluid-tight pump housing.