PNEUMATIC ROTOR ENGINE Russian patent published in 2009 - IPC F01C1/344 

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises stator with covers, inlet and outlet, rotor fitted in stator and having spring-loaded vanes arranged inside rotor radial slots. Engine incorporates position sensor, one-shot multivibrator, indicator and power supply. Aforesaid vanes are furnished with a mark representing a pin arranged on vane face surface to interact with position sensor fitted in the engine stator cover when vane approximates critical wear. Position sensor output is connected with one-shot multivibrator input. One-shot multivibrator output is connected with transistor key input, its collector being connected, via LED, with power supply positive terminal and its emitter being connected with common zero bus.

EFFECT: possibility to determine vane replacement interval irrespective of engine operating conditions, and without breaking it down.

4 dwg