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Invention Publication
CN103857475A 用于生成被施加以压力的脉冲流体射流的装置 有权

用于生成被施加以压力的脉冲流体射流的装置
Abstract:
本发明涉及一种用于从被施加以压力的流体中生成脉冲流体射流（16、18）的装置。该装置包含管线系统（36），该管线系统包含具有喷嘴口（125）的至少一个喷嘴（38、40），从被施加以压力的流体中流体射流（16）可以从该喷嘴口涌出。该装置（20）具有腔室（22），在该腔室中构造出用于生成流体压力波（32）的压力波生成器件（24）。该腔室（22）与管线系统（36）通过用于所生成的流体压力波（32）的排出开口（34）连通。根据本发明，装置（20）包含有调设器件（31、47、62、64），该调设器件用于控制该至少一个喷嘴口（125）上游的管线系统（36）中流体压力波（22）的振幅AP。利用调设器件（31、47、62、64）可以调设由腔室（22）的排出开口（34）与至少一个喷嘴（38、40）的至少一个喷嘴口（125）之间的管线系统（36）中流体压力波（22）路径长度L与管线系统（36）中流体压力波（22）波长λ的商形成的亥姆霍兹数He:=L/λ。
Abstract(English):

The invention relates to a device for generating a pulsating fluid jet (16, 18) from fluid subjected to pressure. The device contains a line system (36) having at least one nozzle (38, 40), which has a nozzle orifice (125), from which a fluid jet (16) of fluid subjected to pressure can exit. The device (20) has a chamber (22), in which a pressure wave generation arrangement (24) for generating fluid pressure waves (32) is constructed. The chamber (22) communicates with the line system (36) through an exit opening (34) for the generated fluid pressure waves (32). According to the invention, the device (20) contains an adjusting arrangement (31, 47, 62, 64) for controlling the amplitude AP of the fluid pressure waves (22) in the line system (36) upstream of the at least one nozzle orifice (125). With the adjusting arrangement(31, 47, 62, 64), it is possible to adjust a Helmholtz number He:= L/Lambda formed from the quotient of the path length L for the fluid pressure waves(22) in the line system (36) between the exit opening (34) of the chamber (22) and the at least one nozzle orifice (125) of the at least one nozzle (38, 40), and the wavelength Lambda of the fluid pressure waves (22) formed in the line system (36).

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