APPARATUS FOR CONTROL OF DIFFERENTIAL PRESSURE IN

专利名称：APPARATUS FOR CONTROL OF

DIFFERENTIAL PRESSURE IN A HEATINGAND COOLING SYSTEM

发明人：ENGELBREKTSSON, Anders申请号：EP03700634.3申请日：20030107公开号：EP1470461A1公开日：20041027

摘要：The invention relates to an apparatus ( 1 ) for controlling the pressure

difference in a heating or cooling system, which comprises a heating or a cooling source (2 ) and a feed duct ( 3 ) as well as a return duct ( 4 ), connected to the source, and

consumption devices ( 5 ) disposed between the ducts, which emit or receive heat, at leastone valve or the like ( 6 and 7 and 8, respectively) being used to control the flow throughsuch a loop, and a pressure difference regulator ( 9 ) being used to keep the pressuredifference between the feed duct and the return duct constant. According to theinvention, the pressure difference regulator ( 9 ) is optionally mounted in one of theducts ( 3 or 4 ) and is provided with signaling terminals ( 29 and 27 and 32 and 30, 31,respectively) connected to the inlet ( 17 ) and the outlet ( 28 ), respectively, as well as tothe low pressure regulating side ( 18 ) and the high pressure regulating side ( 15 ),respectively. At least one valve or the like ( 6 and 7, respectively), mounted in the otherduct ( 4 and 3, respectively) in relation to the duct ( 3 and 4, respectively) of the pressuredifference regulator, is provided with signaling terminals ( 23; 34 and 12; 33, respectively),connected to its inlet ( 21 and 24, respectively) and outlet ( 14 and 22, respectively). The

pressure difference regulator is controlled via optional signaling ducts ( 13 and 16 and 19and 20 and 25 and 26, respectively) between the terminals.

申请人：Tour & Andersson AB

地址：524 80 Ljung SE

国籍：SE

代理机构：Pitkänen, Hannu Alpo Antero

更多信息请下载全文后查看