Waste heat recovery system with partial recuperation

摘要

A waste heat recovery apparatus for use with an internal combustion engine includes a working fluid circuit having a first heating line and a second heating line parallel to the first heating line, a first heat exchanger in the first heating line operatively connected to transfer heat energy to the working fluid from a waste exhaust flow of an internal combustion engine, a second heat exchanger in the second heating line operatively connected to transfer heat energy to the working fluid from recirculating exhaust gas the internal combustion engine, and a recuperative heat exchanger operatively connected to transfer heat energy to the working fluid in the first heating line from the working fluid at a junction of an expander outlet and condenser inlet.

主权项

1. A waste heat recovery apparatus for use with an internal combustion engine, comprising:
a working fluid circuit; an expander connected in the working fluid circuit to receive working fluid; a condenser connected in the working fluid circuit to receive the working fluid from the expander; a first heating line in the working fluid circuit including a first heat exchanger operatively connected to transfer heat energy to the working fluid from a waste exhaust gas flow of an internal combustion engine; a second heating line in the working fluid circuit parallel to the first heating line and having a second heat exchanger operatively connected to transfer heat energy to the working fluid from an exhaust gas recirculation cooler of an internal combustion engine, wherein, the first heating line and the second heating line include a dividing junction upstream of the first heat exchanger and second heat exchanger and a combining junction downstream of the first heat exchanger and second heat exchanger.