Abstract: A fluid mixing-jetting apparatus includes an apparatus body provided at its upstream end with an inlet arrangement for introducing plural kinds of fluids into a flow passage formed in the apparatus body. The apparatus further includes an end plate closing a downstream end of the flow passage of the apparatus body. The end plate is formed with at least one jet opening at a position offset from a center axis of the flow passage of the apparatus body. The end plate may be further formed with a plurality of concave portions on an upstream surface thereof so that the upstream surface of the end plate is formed as a non-planar surface. The jet opening may be non-circular and continuous with an inner circumference of the apparatus body defining the flow passage.

Abstract: There is provided a new static mixer with a low pressure loss and a high agitating/mixing efficiency. The mixer comprises in the midst of a fluid passage a mixing body having a larger diameter than the fluid passage. The mixing body has a mixing body cylinder portion, an inlet hollow portion having an inlet port fitted to the cylinder portion, and a outlet hollow portion having an outlet port. An impingement cylinder having an diameter larger than a diameter of the outlet port is disposed within the mixing body such that its opening is positioned in a confronting relation with the inlet port. A plurality of recesses are provided at at least one of an inner side portion of bottom of the impingement cylinder, an inner surface portion of the hollow inlet port, an inner surface portion of the hollow outlet port, an inner circumferential portion of a cylindrical portion of the impingement cylinder, and an inner circumferential surface portion of the cylindrical portion of the mixing body.