The Traffic Accident Reconstruction Origin -ARnews-


Bosch Fuel Pump Automatic Shut-off

Trevor Candrlic (samaceng@canuck.com)
Mon, 13 Apr 1998 13:26:06 -0400 (EDT)

I am an accident reconstructionist seeking information regarding the automatic
shut-off of a Bosch fuel pump found on a 1998 Ford F-150.

>From what I know these fuel pumps are fitted with a gold ball and magnet.
When the vehicle is involved in a frontal or rear-end impact the sensor is
designed to release the ball, tripping the sensor, which disables the fuel pump.
The pump can then be reset with a button fitted on the outside of the pump.
I am investigating a low-speed accident in which the pump shut-off was
activated.

Does anyone know what kind of impact severity (delta-V or acceleration pulse)
is required to trip this sensor?

I interested in any information on this topic that you can provide me with.
Thanks in advance.

Trevor Candrlic, B.Eng., E.I.T.
Samac Engineering Ltd.
<samaceng@canuck.com>
Trevor Candrlic
samaceng@canuck.com


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