Cooling circuit for internal combustion engines

摘要

A cooling circuit (2) for an internal combustion engine (1) contains a pressure and volume compensation tank (6) with an air-cushion volume (10) which is subjected to excess pressure by means of a vacuum air pump (12). The discharge-air pressure side of the vacuum air pump (12) is used as compressed-air source, its vacuum connection interacting with a vacuum power-assistance device (15). <IMAGE>