Gm Global Technolgoy Operations, Inc.

Mark J Cremasco

Dirk Rensink

Yong Pan

Aleksandar Filipovski

Biljana Rajic

A system for diesel exhaust fluid (DEF) vessel pressure relief for a vehicle is includes a diesel exhaust fluid (DEF) storage tank, and a DEF pump assembly in an interior of the DEF storage tank. The DEF pump assembly includes a DEF pump having a pump body, a fluid pressure sensor fastened to an exterior of the pump body and configured to sense a DEF pressure, and a fluid temperature sensor fastened to the exterior of the pump body and configured to sense a DEF temperature. The system further includes a fluid channel, and a heating element in thermal communication with the fluid channel, where the heating element is configured to heat the fluid channel to displace DEF from a location proximate to the pump body.

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Courtice, Canada

Mark J Cremasco