The ornamental design for a supercharger, as shown and described.
FIG. 1 is a bottom perspective view of a supercharger housing in accordance with an example of the present teachings.
FIG. 2 is a top perspective view of the supercharger housing of FIG. 1.
FIG. 3 is a first side view of the supercharger housing of FIG. 1.
FIG. 4 is a second side view of the supercharger housing of FIG. 1.
FIG. 5 is a rear view of the supercharger housing of FIG. 1.
FIG. 6 is a front view of the supercharger housing of FIG. 1.
FIG. 7 is a top view of the supercharger housing of FIG. 1; and,
FIG. 8 is bottom view of the supercharger housing of FIG. 1.
Any portion of the supercharger shown in broken lines is for the purpose of illustrating environmental structure and forms no part of the claimed design.