| 摘要 |
The present invention shows an improved pin jet nozzle for use in providing an evaporative fog consisting essentially of fluid particles having a diameter of less than fifty micrometers (50 mu m.). In the preferred embodiment, the nozzle of the present invention comprises a base portion, a pin portion, and a nozzle insert component. In particular, the nozzle insert comprises: an insert member comprising a hollow, generally cylindrical insert adapted to be held firmly within the outlet orifice of the base portion of a pin let nozzle; and, an orifice member held firmly within the generally cylindrical insert member, which orifice member comprises: A. a wear-resistant material; B. a central orifice with a diameter of six one-thousandths of an inch (0.006 in.); and, c. a high degree of concentricity, with a variance in the concentricity of the central orifice of less than two ten-thousandths of an inch (0.0002 in.).
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