Apparatus for producing heat in a pressure fluid, in particular for heating a closed space

摘要

An apparatus for producing heat in a pressure fluid, in particular for heating a closed space allocated to a drive unit, has a pump (2) and a pressure valve (23) as heat-producing members, through which the pressure fluid can flow, as well as a heat exchanger (20). In order to largely prevent foaming of the fluid pressure medium, a restrictor (24) is arranged downstream of the pressure valve. <IMAGE>