초록 ▼

A radial compressor is provided for respiration purposes. The sound emissions generated by deflections and separations of the gas flow in the compressor wheel and the housing of the radial compressor and by the high-speed motor of the radial compressor are reduced. This is achieved with a specially

A radial compressor is provided for respiration purposes. The sound emissions generated by deflections and separations of the gas flow in the compressor wheel and the housing of the radial compressor and by the high-speed motor of the radial compressor are reduced. This is achieved with a specially shaped passage channel (4) for the volume flow, which exerts a stabilizing effect on the volume flow utilizing the Bernoulli principle of flow. Additional sound reduction is provided by using a separate mass (8) arranged between the motor (6) and the housing (3), which absorbs the sound energy generated by the high-speed motor (6). Also sound reduction is provided by suspending the radial compressor with membranes in a closed capsule.

대표청구항 ▼

1. A radial compressor, comprising:a motor-driven compressor wheel rotating around an axis of rotation; a stationary housing surrounding the compressor wheel, the housing defining a flow passage for feeding gas in a direction of the axis of rotation, the flow passage including an intake mouth, with

1. A radial compressor, comprising:a motor-driven compressor wheel rotating around an axis of rotation; a stationary housing surrounding the compressor wheel, the housing defining a flow passage for feeding gas in a direction of the axis of rotation, the flow passage including an intake mouth, with gas leaving the compressor wheel at right angles to the axis of rotation, a passage opening of said flow passage being disposed adjacent to said intake mouth, said compressor wheel and blade ends of said compressor wheel, said passage opening narrowing in a direction of the volume flow being fed in and then expanding; and a separate mass, wherein said motor driving said compressor wheel is coupled to said housing with low damping via the intermediary of said separate mass.