Patent ID: 7454912
Filing Date: 2008-11-25
Classification: F02G,Y02T

Abstract:
1. A waste heat utilization device for utilizing waste heat from a heat engine mounted on a vehicle, comprising: a refrigerating cycle for an automotive air conditioning system, having an expansion-compressor device for compressing refrigerant, a condenser device, and an evaporator; a Rankine cycle including: a controller for controlling an operation of the refrigerating cycle and the Rankine cycle, wherein in a case that a temperature of the waste heat from the heat engine is higher than a predetermined temperature, and the controller determines that a demand for operating the refrigerating cycle is not existing, the controller controls a flow amount (G) of the working fluid to collect the heat collection amount (Oho), so that the driving power (L), which is defined by an actual heat collection amount and an actual heat radiation amount, is efficiently generated at the expansion device-compressor.