Patent ID: 9682608
Date: 2017-06-20
CPC Classifications: B60H

Claim:
1. An HVAC system for a passenger compartment of a motor vehicle, comprising: a primary HVAC unit disposed within the passenger compartment of the motor vehicle and configured for at least one of heating and cooling a passenger compartment; a supplemental heat exchanger spaced apart from the primary HVAC unit and also disposed within the passenger compartment of the motor vehicle, the supplemental heat exchanger configured to supplement at least one of the heating and the cooling of the passenger compartment by the primary HVAC unit, wherein the supplemental heat exchanger has an inlet in fluid communication with an engine coolant supply conduit through which hot coolant from an engine of the motor vehicle flows for the supplemental heating of the passenger compartment and an outlet in fluid communication with an engine coolant return conduit for recirculation of the engine coolant back to the engine after the engine coolant flows through the supplemental heat exchanger; and a cooling subsystem in fluid communication with a refrigerant supply conduit, a refrigerant return conduit, and each of the engine coolant supply conduit and the engine coolant return conduit, wherein the cooling subsystem is configured to cool the engine coolant being supplied to the supplemental heat exchanger for the supplemental cooling of the passenger compartment.