The ornamental design for an aircompressor, as shown and described.
FIG. 1 is a top-front-right perspective view of the air compressor according to an embodiment of the present invention;
FIG. 2 is a front view of the air compressor according to the embodiment of the present invention;
FIG. 3 is a rear view of the air compressor according to the embodiment of the present invention;
FIG. 4 is a left-side view of the air compressor according to the embodiment of the present invention;
FIG. 5 is a right-side view of the air compressor according to the embodiment of the present invention;
FIG. 6 is a top view of the air compressor according to the embodiment of the present invention; and,
FIG. 7 is a bottom view of the air compressor according to the embodiment of the present invention.
The broken lines in FIGS. 3, 4, 5, 6, and 7 are included for the purpose of illustrating portions of the claimed design that form no part of the claimed design.