Imprint Contact 868 Videos
900.000 Callings


Wheel change
Save Energy

Video Thermodynamics 1
Video Thermodynamics 2
Video Thermodynamics 3
Video Thermodynamics 4
Video Thermodynamics 5
Video Thermodynamics 6

Video Cooling

Video Add. Information
Video Summary
Video Maintenance
Video Repair
Video How to get engine warm?
Video Air Cooling
Video Air-stream Cooling
Video Air/Liquid Cooling
Video Blower Cooling
Video Axial Blower 1
Video Axial Blower 2
Video Radial Blower
Video Liquid Cooling
Video Cooling Module
Video Radiator
Video Closed Cooling S.
Video Coolant Pump 1
Video Coolant Pump 2
Video Coolant Pump 3
Video Coolant
Video Antifreeze
Video Frost Plug
Video Electr./Hydr. Fan
Video Vacuum Filling
Video Hydrostatic Blower
Video Belt Drive
Video V-belt Drive
Video Fuel Vaporization
Video Thermostat
Video Electronic Cooling 1
Video Electronic Cooling 2
Video Thermosiphon Cooling
Video Visc. Cooling Fan 1
Video Visc. Cooling Fan 2
Video Oil Cooling
Video Heat Exchanger
Video Charge Ait Cooler 1
Video Charge Ait Cooler 2
Video Fuel Cooling

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Coolant Pump (cross-section)

Those who still believe that the water pump bearings are lubricated by the coolant, should have a look to then picture below. Of course, there are two ball-bearings which are provided with a life-long grease filling, and carefully sealed against outside influences. For the coolant there is an additional drain-hole, so that, in the event of the pump becoming leaky, under no circumstances, will the coolant reach the bearings.

In the above picture, you can see two different types of impeller construction. The closed system has of course, the disadvantage of clogging up easlier. A filter is now installed in heating systems where this type of impeller is also used. Why does one run the risk of having defects by using sensitive components like this in the first place? Once again, the reason lies in the more favourable efficiency and economy which, in the meantime, all constructions have to abide by. 11/11               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

Our E-Book advertising