Patent ID: 6928820
Filing Date: 2005-08-16
Classification: B60H,F01K,Y02T

Abstract:
1. A waste heat collecting system having a rankine cycle comprising: a vapor generating device for generating a superheated vapor by heating a liquid-phase fluid with a waste heat from a thermal engine; an expansion device for generating a kinetic energy by expanding the superheated vapor in an isenthropic manner; a condensing device for condensing the vapor expanded in the expansion device to convert the vapor into the liquid-phase fluid; a liquid pump for pumping the liquid-phase fluid to the vapor generating device; and an adjusting means for adjusting an amount of the waste heat to be supplied to the vapor generating device from the thermal engine, so that the supply of the superheated vapor from the vapor generating device to the expansion device is correspondingly controlled, wherein the adjusting means supplies the waste heat from the thermal engine to the vapor generating device when a temperature (Tw) of the waste heat is higher than a predetermined value, and stops the supply of the waste heat from the thermal engine to the vapor generating device when the temperature (Tw) of the waste heat is lower than the predetermined value.