ELECTRIC DRIP-JET HEAD Russian patent published in 1997 - IPC

FIELD: automatic control and computer engineering; automatic-control systems and recording devices of multicomputer systems. SUBSTANCE: head has body, electrodes, enclosed injecting chamber communicating through capillary hole with open injecting chamber whose external wall carries outlet nozzle, working fluid pumping unit incorporating piezoelectric transducer and rubber plunger connected to it, working fluid tank communicating through piping with open injecting chamber. Head is also provided with additional facility for pumping working fluid and preparing the head to receive successive input control voltage pulse that has conducting walls of open injecting chamber functioning as electrodes and electronic amplifier unit whose output is connected to mentioned conducting walls. EFFECT: improved speed of response and operating reliability. 1 dwg