Patent ID: 8991180
Filing Date: 2015-03-31
Classification: F01K,F01N

Abstract:
1. A device for utilizing the waste heat of an internal combustion engine ( 2 ), having a line circuit ( 4 ) in which are arranged a feed pump ( 6 ), at least one heat exchanger ( 8 ), an expansion machine ( 10 ), and a condenser ( 12 ), wherein a working medium circulates in the line circuit ( 4 ), characterized in that a bypass connection ( 14 ) is connected in parallel with the expansion machine ( 10 ), in such a way that, as a function of an operating situation of the internal combustion engine ( 2 ), the expansion machine ( 10 ) is coupled into or decoupled from the line circuit ( 4 ) for waste-heat utilization, wherein both a bypass pressure regulating valve ( 16 ) and a pressure limiting valve ( 32 ) are arranged in parallel in the bypass connection ( 14 ).