Canadian Plastics

Acetal Copolymer holds tight tolerances in fuel application

Ticona's 15 percent glass-filled Celcon GC15 acetal copolymer was chosen for the design of a new fuel pump for automotive OEM's throughout the world. The material is resistant to a variety of aggressi...

April 1, 1999   Canadian Plastics



Ticona’s 15 percent glass-filled Celcon GC15 acetal copolymer was chosen for the design of a new fuel pump for automotive OEM’s throughout the world. The material is resistant to a variety of aggressive fuels from different regions and is built to capture fine detail in the end-cap.

To help pumps maintain integrity and performance despite additives, the outlet end-cap accurately aligns a press-fit phenolic retainer for the motor brush assembly, mates the pump with engine fuel and pressure relief lines and comes in modified versions for different vehicles on world markets.

The outlet end-cap is measured for mechanical strength, accurate roundness and perpendicularity, and has no discrete valve seals. To save space, it also has electromagnetic interference suppression circuitry overmolded into its wall. A check-valve prevents all fuel from returning to the tank when the car’s ignition is turned off. The end-cap

is precision-molded, and the pump design passed all environmental and performance testing, entering production in 1995.

Ticona (Hoechst Group) 800/235-2637

(circle 86)


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