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Title: Exhaust bypass flow control for exhaust heat recovery

An exhaust system for an engine comprises an exhaust heat recovery apparatus configured to receive exhaust gas from the engine and comprises a first flow passage in fluid communication with the exhaust gas and a second flow passage in fluid communication with the exhaust gas. A heat exchanger/energy recovery unit is disposed in the second flow passage and has a working fluid circulating therethrough for exchange of heat from the exhaust gas to the working fluid. A control valve is disposed downstream of the first and the second flow passages in a low temperature region of the exhaust heat recovery apparatus to direct exhaust gas through the first flow passage or the second flow passage.
Authors:
Publication Date:
OSTI Identifier:
1221376
Report Number(s):
9,140,168
12/752,648
DOE Contract Number:
FC26-04NT42278
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Apr 01
Research Org:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION