Method for operating test bench for carrying out pressure test of cooling circuit of internal combustion engine, involves utilizing maximum pressure during normal operation of internal combustion engine in cooling circuit

摘要

The method involves utilizing maximum pressure during a normal operation of an internal combustion engine (1) in a cooling circuit (2), particularly in a high-pressure area (3) of the cooling circuit as a test pressure. The speed is brought to a certain, non-zero target rotational speed on an output shaft of the internal combustion engine in a first test step. The pressure is adjusted a low-pressure area (4) of the cooling circuit flow-connected with the high-pressure area to an inlet pressure. An independent claim is included for a test bench for carrying out a pressure test of a cooling circuit of an internal combustion engine.