Patent ID: 6053131
Filing Date: 2000-04-25
Classification: F01M,F01P

Abstract:
A temperature adjustment system with liquid heat exchanger media in an internal combustion engine, having at least two different liquids in separate circuits, comprising:a heat exchanger exposed on an inlet side to a plurality of flows of a first of said liquids, said flows being at different temperatures, for alternate heating or cooling of a second of said liquids under valve control,a valve device located on the inlet side being controlled as a function of a temperature of the first liquid on an outlet side of the heat exchanger,a thermostat in a bypass permitting the first of said liquids to pass by the heat exchanger and the valve device during an engine warm-up phase, anda temperature sensor located on the outlet side of the heat exchanger for control and/or regulation of separate valves of the valve device located in a hot inlet and a cold inlet for the first liquid in the valve device.