Method for cleaning air-driven dental handpiece, involves flowing gas and oil through turbine space, turbine bearing and collet chuck space, where gas is expanded and is passed from fluid phase into gas phase

摘要

The method involves attaching a pressure tank to a feed channel (23), where the pressure tank contains gas, which stays under pressure, and oil. A draining channel is sealed, and the pressure tank is opened. The gas and oil are flown through a turbine space (22), a turbine bearing and a collet chuck space (8'), where the gas is expanded and is passed from a fluid phase into a gas phase. A turbine wheel (7) is arranged in the turbine space, and a shaft (5) is connected with the turbine wheel in a torque-proof manner. The turbine space and the chuck space are connected together.