Exhaust Heat Recovery Systems (EHRS)


For hybrid vehicles, its EHRS are widely used to reduce engine warm-up times to improve fuel economy, reduce emissions and provide cabin heating. 
BorgWarner’s exhaust heat recovery systems transfer the heat that would normally go out the exhaust pipe to the vehicle’s coolants and oils to reduce mechanical losses and increase passenger comfort.
Heat exchanger with corrugated tube technology
Pneumatic bypass valve
The EHRS reduces mechanical losses by using the energy conserved within the exhaust gas. During engine cold starts, a valve controls the exhaust gas flow, routing it through a heat exchanger, where the thermal energy of the gas heats up the vehicle’s subsystem fluids. As a result, the engine warms up faster, reducing emissions and improving fuel efficiency. 

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