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发明公开
CN106246302A 分体式尿素计量喷嘴结构 无效 - 驳回

分体式尿素计量喷嘴结构
摘要：
本发明涉及一种分体式尿素计量喷嘴结构，它包括阀杆、护套与旋流喷头，在护套的下端部内部固定有旋流喷头，在旋流喷头内沿着其轴向开设有旋流喷头中孔，在旋流喷头的下端开设有喷孔，喷孔的上端部壁体与旋流喷头中孔的下端部壁体之间通过内密封面相连，在旋流喷头的外壁中部位置沿着其周向开设有喷头环形槽，在喷头环形槽上方的旋流喷头的外壁周向开设有喷头竖向槽，喷头竖向槽的下端部与喷头环形槽连通，在喷头环形槽位置的旋流喷头上开设有旋流孔。本发明具有便于加工制造、关键尺寸及公差易于控制且性能好等优点。
摘要（英）：

The invention relates to a split urea metering nozzle structure which comprises a valve rod, a protective sleeve and a swirl flow nozzle, wherein the swirl flow nozzle is fixed inside the lower end part of the protective sleeve; a swirl flow nozzle center hole is formed in the swirl flow nozzle along the axial direction of the swirl flow nozzle; a spray hole is formed in the lower end of the swirl flow nozzle; the upper-end-part wall body of the spray hole and the lower-end-part wall body of the swirl flow nozzle center hole are connected through an internal sealing surface; a nozzle annual groove is formed in the middle position of the outer wall of the swirl flow nozzle along the circumferential direction of the swirl flow nozzle; a nozzle vertical groove is circumferentially formed in the outer wall of the swirl flow nozzle above the nozzle annual groove; the lower end part of the nozzle vertical groove communicates with the nozzle annual groove; and a swirl flow hole is formed in the swirl flow nozzle at the position of the nozzle annual groove. The split urea metering nozzle structure provided by the invention has the advantages that the machining and the manufacturing are convenient; the critical dimension and tolerance are easy to control; and the performance is good.

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