Method for operating a waste heat utilization device

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United States of America Patent

PATENT NO 9879569
APP PUB NO 20150361832A1
SERIAL NO

14764324

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and a device for operating a waste heat utilization device for an internal combustion engine of a motor vehicle is disclosed. The waste heat utilization device contains a waste heat utilization circuit in which a working medium circulates. A conveyor, an evaporator, an expansion machine, and a condenser are disposed in the waste heat utilization circuit. A basic adjustment of the waste heat utilization circuit is provided, which as a function of a heat input into the working medium adjusts the mass flow rate at the conveyor and/or the ratio between high pressure and low pressure at the expansion machine. In addition, a pilot control is provided which recognizes a change of the operating point of the internal combustion engine and, when the operating point is changed, controls the condensation output of the condenser in accordance with a mass distribution of the working medium in the waste heat utilization circuit optimized to the new operating point.

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Patent Owner(s)

Patent OwnerAddress
DAIMLER AGMERCEDESSTRASSE 120 STUTTGART 70372 70372

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Franke, Andreas Kornwestheim, DE 12 111
Gaertner, Jan Leonberg, DE 7 98
Koch, Thomas Pfinztal-Berghausen, DE 137 823
Mall, Dominik Gundelsheim, DE 1 55

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