System for utilizing waste heat of an internal combustion engine

摘要

A system for utilizing waste heat of an internal combustion engine via the Clausius-Rankine cycle process is provided that includes a circuit with lines containing a working medium, an evaporator heat exchanger which serves for evaporating the liquid working medium using waste heat of the internal combustion engine and which has an inlet opening for conducting the working medium into a flow duct and an outlet opening for conducting the working medium out of the flow duct, and the flow duct is divided into a plurality of flow duct parts connected hydraulically in parallel, an expansion machine, a condenser for liquefying the vaporous working medium, a collecting and compensating vessel for the liquid working medium, it is sought to be able to change the working medium substantially completely from a liquid state of aggregation to a gaseous state of aggregation at an evaporator heat exchanger.

主权项

1. A system for utilizing waste heat of an internal combustion engine via a Clausius-Rankine cycle process, the system comprising:
a circuit having lines with a working medium; a pump configured to convey the working medium; an evaporator heat exchanger configured to vaporize the working medium with the waste heat of the internal combustion engine, the evaporator heat exchanger including a flow duct, an inlet opening for conveying the working medium into the flow duct and an outlet opening for conveying the working medium out of the flow duct, the flow duct being divided into a plurality of flow duct parts connectable in parallel hydraulically; an expander; a condenser configured to liquefy the vaporized working medium; and a collecting and equalizing tank for the liquid working medium; wherein the evaporator heat exchanger has a mixing duct, wherein, in a flow direction of the working medium, at least two flow duct parts, connectable hydraulically in parallel, open into the mixing duct, and wherein, in the flow direction of the working medium, the mixing duct opens into at least two flow duct parts connectable hydraulically in parallel.