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Video Pumps
Video Roller Vane Pump
Video Diaphragm Pump
Video Vacuum Pump
Video Fuel Piston Pump
Video Vane Pump
Video Peripheral Pump
Video Side-channel Pump
Video Rotor-type Pump
Video Crescent Gear Pump
Video Gear Pump
Video Roots Blower
Video Rotors (Roots blower)
Video Turbo Charger
Video G-charger
Video Compressor (AC) 1
Video Compressor (AC) 2

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Roller cell pump


The very compactly constructed roller cell pump is driven mostly by an electric motor, and transports petrol at a pressure of approx. 6 bar to the injection valve(s). Despite the unsatisfactory lubrication properties of petrol, it manages without additional lubrication.


The armature, together with the collector runs in petrol and drives a drum whose rotation causes small rolling elements lying in slits on the surrounding, slightly larger cylinder, to roll. Because the drum is eccentrically mounted, a vacuum is developed there where the area is enlarged, and on the diminishing side, a pressure (on the left in the picture). Installed between the vacuum- and the pressure side is a pressure release valve which opens with possible disturbances in the pressure pipe and protects the pump from overheating and destruction (on the right in the picture). In addition, at the exit, a non-return valve prevents the pressure from dropping when the pump is switched off.
In the event of the connections being transposed, the armature and the drum rotate in the opposite direction. The non-return valve however, prevents the possibly existing fuel from flowing back into the tank.               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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