| 摘要 |
A coating dispensing spray gun (20) includes a first port (34) adapted to supply compressed gas to the spray gun (20) and a second port (36) adapted to supply coating material. The spray gun (20) further includes a generator (38) having a shaft (42) and a turbine wheel (40) mounted on the shaft (42). Compressed gas coupled to the first port (34) impinges upon the turbine wheel (40) to spin the shaft (42), producing voltage. The spray gun (20) further includes an electrode (62) adjacent the nozzle (30) and coupled by circuitry to the generator (38) to receive electricity therefrom to electrostatically charge the coating material. A circuit board assembly (70, 72,. 74) containing components of the circuitry is configured to partially surround and partially enclose the generator (38). |
