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    • 1. 发明授权
    • Apparatus for producing a reaction mixture
    • 用于生产反应混合物的装置
    • US4474310A
    • 1984-10-02
    • US370450
    • 1982-04-21
    • Heinz MullerReiner RaffelFerdinand Althausen
    • Heinz MullerReiner RaffelFerdinand Althausen
    • B29B7/00B29B7/32B29B7/58B29B7/76B29B7/94B29B9/00B29C39/00B29C39/24B29C43/00B29C45/00B29C45/46B67D5/60
    • B29B7/7631B29B7/7636Y10S264/83
    • The present invention is directed to an apparatus for producing a reaction mixture from at least two fluid components comprising: (A) a storage container for each component; (B) feed pipes leading from each storage container via metering pumps to injection nozzles; (C) return pipes leading from each injection nozzle to the storage containers; (D) the injection nozzles opening into the mixing chamber of a mixhead, the mixhead having an outlet opening downstream of the injection nozzles, each injection nozzle comprising (i) a housing, (ii) a bore arranged in the housing, the bore connected to a feed pipe and a return pipe, (iii) a nozzle needle within the bore, the nozzle needle being provided with (a) an annular groove for connecting the feed pipe and the return pipe, (b) a sealing surface, and (c) a needle spindle, (iv) a sealing surface in the housing, the sealing surface adapted to contact the sealing surface of the nozzle needle, and (v) a central nozzle bore located in the sealing surface (vi) wherein the needle spindle is adapted to pass into and/or through the central nozzle bore; characterized in the (E) the nozzle needle and the needle spindle are separate parts, wherein the needle spindle consists of a ductile, highly elastic steel and is replaceably-mounted in the nozzle needle and surrounded by a recess formed in the nozzle needle.
    • 本发明涉及一种用于从至少两种流体组分制备反应混合物的装置,包括:(A)每种组分的储存容器; (B)从每个储存容器通过计量泵通向喷嘴的进料管; (C)从每个喷嘴引导到存储容器的返回管; (D)喷射嘴开口进入混合头的混合室,混合头具有在喷嘴下游的出口,每个喷嘴包括(i)壳体,(ii)布置在壳体中的孔,孔连接 (iii)在孔内的喷嘴针,喷嘴针设置有(a)用于连接进料管和回流管的环形槽,(b)密封表面和( c)针轴,(iv)所述壳体中的密封表面,所述密封表面适于接触所述喷嘴针的密封表面,以及(v)位于所述密封表面(vi)中的中心喷嘴孔,其中所述针主轴 适于进入和/或穿过中心喷嘴孔; 其特征在于(E)喷嘴针和针主轴是分开的部分,其中针轴由延性高的弹性钢组成,并且可更换地安装在喷嘴针中并被形成在喷嘴针中的凹部包围。