Patent ID: 9260989
Filing Date: 2016-02-16
CPC Classification: F01M,F25B,G01F

Claim Text:
1. A device for monitoring and/or displaying an oil level in a screw-type compressor integrated into a vehicle, the device comprising: an optical unit that monitors an oil level of an oil sump of the screw-type compressor; and an evaluation device, connected to an engine controller of the vehicle, that evaluates signals from the optical unit indicating the oil level of the screw-type compressor, signals related to an operating state of the screw-type compressor and receives signals relating to an operating state of the vehicle from the engine controller into which the screw-type compressor is integrated, the operating state of the vehicle being one of accelerating and braking, wherein the oil level fluctuates in the oil sump of the screw-type compressor during different operating states of the screw-type compressor and different operating states of the vehicle, and wherein the evaluation device evaluates the operating state of the vehicle together with the operating state of the screw-type compressor when determining the oil level in the screw-type compressor dependent on the operating states.