Patent ID: 11939902
Assignee: HYUNDAI MOTOR COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 0:
1. An apparatus of purifying exhaust gas of a hybrid vehicle, the apparatus comprises:
an electric supercharger disposed on an intake line through which intake air to be supplied to cylinders of an engine flows;
a post-treatment unit disposed on an exhaust line through which exhaust gas discharged from the cylinders flows and including an electrically-heated catalyst;
an exhaust gas recirculation unit including an exhaust gas recirculation cooler disposed on a recirculation line connecting the post-treatment unit and the intake line and an exhaust gas recirculation valve disposed on the recirculation line;
a three-way valve disposed at a position at which the recirculation line diverges into an ambient air supply line of a shut-off valve and the intake line; and
a controller electrically connected to the three-way valve and configured for controlling the three-way valve to be selectively opened or closed so that heated air discharged from the electric supercharger selectively flows toward the post-treatment unit through the recirculation line.