Sprinkler used in fire extinguishing system, has injector-mixing nozzles received in nozzle case within sprinkler housing when in passive condition, in which positions of nozzles are changed when in active position to discharge water

摘要

The sprinkler has injector-mixing nozzles which are separately formed and fixed at predetermined positions in passive condition of the sprinkler, such that the positions of the nozzles change when the sprinkler is in active position. The nozzles are received in a nozzle case within the sprinkler housing when the sprinkler is in passive condition. When the sprinkler is in active condition, the nozzles discharge water (5) for fire extinguishing over a rabbet, which is set in fixed position outside of the sprinkler housing, until the time when the injector function of the nozzles is cleared.