Thermal kinetic energy recovery system for hybrid vehicle
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United States of America Patent
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Nov 12, 2019
Grant Date -
Jan 24, 2019
app pub date -
Sep 21, 2018
filing date -
Mar 21, 2016
priority date (Note) -
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Abstract
A transmission system selectively coupled to an engine crankshaft of an internal combustion engine arranged on a vehicle includes a waste heat recovery (WHR) system, a brake assembly and a phase-change thermal heat storage system. The WHR system selectively circulates a WHR fluid in the transmission system. The brake assembly selectively couples a transmission output shaft to a drive axle. The brake assembly is configured to operate in a braking mode that retards relative rotation between the transmission output shaft and the drive axle while generating heat. The heat storage system includes a housing defining at least one cavity and a fluid transfer manifold. A phase-change material is disposed in the cavity that is configured to change phase during the braking mode. The WHR system circulates the WHR fluid through the fluid transfer manifold collecting braking heat to be used at a later time in the form of driveline power.
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