초록 ▼

A firefighting nozzle has a low-turbulence liquid flow channel that is directed outwardly by a baffle. Surrounding the flow channel is an annular concentrate chamber. The concentrate chamber leads from a concentrate inlet to a concentrate entry port on a rearward wall opposed to the baffle. Liquid f

A firefighting nozzle has a low-turbulence liquid flow channel that is directed outwardly by a baffle. Surrounding the flow channel is an annular concentrate chamber. The concentrate chamber leads from a concentrate inlet to a concentrate entry port on a rearward wall opposed to the baffle. Liquid flowing past the baffle draws concentrate through the concentrate entry port into the flow. The concentrate and liquid subsequently mix to produce fire-fighting foam.

대표청구항 ▼

[ We claim:] [1.] A self-educing peripheral jet nozzle comprising:a liquid inlet, a concentrate inlet, and an outlet;a liquid flow channel extending from the liquid inlet to the outlet;an annular concentrate chamber that substantially surrounds the liquid flow channel;means for securing the concentr

[ We claim:] [1.] A self-educing peripheral jet nozzle comprising:a liquid inlet, a concentrate inlet, and an outlet;a liquid flow channel extending from the liquid inlet to the outlet;an annular concentrate chamber that substantially surrounds the liquid flow channel;means for securing the concentrate inlet to a supply of chemical concentrate;a connection on the liquid inlet for securing the liquid flow channel in communication with a flow of water;a baffle disposed within the liquid flow channel with an outwardly-extending forward wall forming one part of the liquid flow channel;an outwardly-extending rearward wall forming an opposed part of the liquid flow channel; anda concentrate flow channel extending from the concentrate inlet to the concentrate chamber, and subsequently to a concentrate entry port on the rearward wall, across from the outwardly-extending forward wall on the baffle, the entry port providing the first point of contact between liquid from the liquid flow channel and concentrate in the concentrate flow channel.