Heating device

摘要

A machine with a hydraulic or lubrication oil system has a high pressure feed pump and a restrictor element for heating the medium with a reduction of pressure, by which means an increase in the operating temperature of the machine, in particular for heating a control cab by means of a lubrication oil heat exchanger can be achieved. The high-pressure feed pump simultaneously supplies the lubrication points of the machine with reduced pressure either via the restrictor element or a bypass of the said element with a low flow resistance. <IMAGE>