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专利名称：Device for controlled ventilation of rooms发明人：Fahrni, Heinz,Rüegg, Max申请号：EP90810531.5申请日：19900712公开号：EP0409779A2公开日：19910123
专利附图：
摘要：for the controlled ventilation of a room is in the bel\üftungs\kanal akanalst\ück (8) with an arrangement for volume and quantitative measurement isprovided. the kanalst\ück (8) includes a tubular shaped hollow, as
str\ömungsk\örper (25), two in the direction of flow in the druckmesskammern
(19) contains.these are a series of openings (27,28) accident, a connection to
str\ömungs\guerschnitten with various flow manufacture. the quantitativemeasurement is effected by means of an differenz\druck - measuring device (20),the channels (32.33) with the druck\messkammern (19) is connected. the device hasa low flow loss and a low str\ömungsger\äusch.with its favourable
str\ömungsf\ührung can the device immediately adjacent to intersections of thebel\üftungskanals an\geordnet.
申请人：Hesco Pilgersteg AG
地址：CH-8630 Rüti CH
国籍：CH
代理机构：Quehl, Horst Max, Dipl.-Ing.
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