Evap-System - New Actuators Facing the Future Requirements for Purge Flow Management

Paper #:
  • 930858

Published:
  • 1993-03-01
Citation:
Heinemann, J. and Gesenhues, B., "Evap-System - New Actuators Facing the Future Requirements for Purge Flow Management," SAE Technical Paper 930858, 1993, https://doi.org/10.4271/930858.
Pages:
18
Abstract:
On the background of the model year '94/'95 legal regulations the evaporative emission system and especially the purge flow management has to change significantly.A strategy is shown, which enables to solve the problems of choosing the right actuators and electrical control.With the assistance of a numerical method an analysis of the canister purge valve mass flow characteristics is carried out. The most important functional quality critirea dynamic range, macro- and micro dosing efficiencies are calculated for some valves, which are in use or in development.
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