Supercharging device for a combustion engine

A supercharging device (20), having a supercharger housing (21) which has a longitudinal axis (L);

• at least one supercharger housing inlet (1) which leads into the supercharger housing (21);
• at least one supercharger housing outlet (2) which leads out of the supercharger housing (21);
• at least one compressor wheel (5) which is arranged in a compressor chamber (15) and which is driven by a motor shaft (16) and which is arranged between the supercharger housing inlet (1) and the supercharger housing outlet (2) of the supercharger housing (21) as viewed in the flow direction, and
• at least one bypass duct (17) which is integrated in the supercharger housing (21) and which connects the supercharger housing inlet (1) to the supercharger housing outlet (2) so as to bypass the compressor chamber (15), the bypass duct (17) having a valve (22), wherein
• the supercharger housing inlet (1) and the supercharger housing outlet (2) are formed as an axial inlet and an axial outlet respectively,
• the valve (22) has a valve body (8) which is guided movably along the longitudinal axis (L) and which is preloaded into a closed position by a spring (11),
• the valve body (8) is arranged on a guide (19) which is part of a compressor housing (18) which is arranged in the supercharger housing (21), and
• a valve guide seal (12) is provided which is arranged on the guide (19) and which bears against an inner wall (24) of a guide recess (25) of the valve body (8).