Exhaust gas recirculation compressor inlet thermal separation system

A vehicle, comprising:

• a turbocharger compressor;
• an exhaust gas recirculation (EGR) system coupled to the compressor;
• and
• an EGR compressor inlet thermal separation system coupled to the compressor, comprising:
• an EGR gas duct adapted to carry EGR gas to a compressor inlet area disposed adjacent to a compressor;
• an inlet air duct adapted to carry inlet air to the compressor inlet area disposed adjacent to the compressor, wherein the EGR gas is relatively hotter and more humid than the inlet air;
• and
• an insulated separation wall disposed between the EGR gas duct and the inlet air duct adjacent to the compressor inlet area, wherein the insulated separation wall is adapted to thermally insulate the EGR gas from the inlet air until the EGR gas is mixed with the inlet air in or after the compressor inlet area;
• wherein the EGR gas duct is disposed adjacent to the inlet air duct and intersects the compressor inlet area at an angle to the inlet air duct subsequent to the insulated separation wall.

An exhaust gas recirculation (EGR) compressor inlet thermal separation method, comprising:

• delivering EGR gas to a compressor inlet area disposed adjacent to a compressor via an EGR gas duct;
• delivering inlet air to the compressor inlet area disposed adjacent to the compressor via an inlet air duct, wherein the EGR gas is relatively hotter and more humid than the inlet air;
• and
• thermally insulating a separation wall disposed between the EGR gas duct and the inlet air duct adjacent to the compressor inlet area to thermally insulate the EGR gas from the inlet air until the EGR gas is mixed with the inlet air in or after the compressor inlet area;
• wherein the EGR gas duct is disposed adjacent to the inlet air duct and intersects the compressor inlet area at an angle to the inlet air duct subsequent to the insulated separation wall.