Device for feeding grease to a plurality of bearings

A device for feeding grease to the bearings of a rotary machine comprising a stqator and a rotor, said device comprising:

• means for injecting grease into said bearings, an electronic control circuit connected to said injecting means, said circuit including inputs receiving signals from sensors adjacent said bearings for sensing parameters characteristic of the operating state of the bearings, said injecting means comprising a supply of grease under pressure connected to a plurality of injector blocks, each injector block being connected to a respective bearing feeder channel, said sensors being pressure and temperature sensors, and said electronic circuit including a clock and means for generating injecting cycles as a function of a pre-established program based on information provided by said sensors through said inputs and the operating time of the bearings.