Patent ID: 7600982
Filing Date: 2009-10-13
Classification: B60G,F04C

Abstract:
1. A compact helical compressor for supplying a compressed air on-board system in a vehicle, comprising: a helical compressor unit; a motor unit having a controllable hydraulic drive, the motor unit being assigned solely to the helical compressor unit; a hydraulic motor of the hydraulic drive, the hydraulic motor being connected directly by flanges to the helical compressor unit; an adjustable hydraulic pump for supplying the hydraulic motor via an oil line with a pressure medium necessary for operation; a control unit for actuating the adjustable hydraulic pump and for adjusting a rotational speed of the motor unit causing the helical compressor unit to generate a predefined discharge rate of compressed air independently of a drive assembly of the vehicle; and a multi-component housing of the helical compressor unit having a first housing part containing an intake nonreturn valve with a compressor helical arrangement connected downstream and an oil precipitator unit connected downstream, connected with a neighboring second housing part containing an outflow contour of the helical compressor unit, and connected with a neighboring third housing part containing elements for accommodating a fine oil filter.