MULTI-STEP REGENERATION DEVICE OF DPF AND REGENERATION METHOD THEREFOR

摘要

The present disclosure provides a multi-step regeneration apparatus of a diesel particulate filter (DPF), which generates a load to an engine to remove soot, the apparatus including: an external air temperature sensor configured to measure a temperature of external air; a controller configured to compare a temperature value measured by the external air temperature sensor with a predetermined value and output a signal; and a control valve unit including a first control valve and a second control valve receiving a signal from the controller, and a first spool operated by the first control valve and a second spool operated by the second control valve.

主权项

1. A multi-step regeneration apparatus of a diesel particulate filter (DPF), which generates a load to an engine to remove soot, the apparatus comprising:
an external air temperature sensor configured to measure a temperature of external air; a controller configured to compare a temperature value measured by the external air temperature sensor with a predetermined value and output a signal; and a control valve unit including a first control valve and a second control valve receiving the signal from the controller, and a first spool operated by the first control valve and a second spool operated by the second control valve.