Impeller for refrigerant compressors

FIG. 1 is a perspective view of an impeller for refrigerant compressors according to the present invention, FIG. 1 is enlarged 1.125 relative to FIG. 2;

FIG. 2 is a front view of an impeller for refrigerant compressors according to the present invention, the left side, right side and rear views are the substantially the same as the front view;

FIG. 3 is a top view of an impeller for refrigerant compressors according to the present invention;

FIG. 4 is a bottom view of an impeller for refrigerant compressors according to the present invention;

FIG. 5 is a perspective view of an impeller for refrigerant compressors showing a second embodiment of our new design, the bottom view is substantially the same as FIG. 4, FIG. 5 is enlarged 1.125 relative to FIG. 6;

FIG. 6 is a front view of FIG. 5, the left side, right side and rear views are substantially the same as the front view;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a perspective view of one of the blades shown in FIGS. 1 through 4, shown separately for clarity of illustration, the blades of the second embodiment of the impeller for refrigerant compressors shown in FIGS. 5 through 7 being substantially the same;

FIG. 9 is a front end view of the blade shown in FIG. 8;

FIG. 10 is a left side view of the blade shown in FIG. 8;

FIG. 11 is a right side view of the blade shown in FIG. 8;

FIG. 12 is a rear end view of the blade shown in FIG. 8;

FIG. 13 is a top view of the blade shown in FIG. 8;

FIG. 14 is a bottom view of the blade shown in FIG. 8;

FIG. 15 is a perspective view of another one of the blades shown in FIGS. 1 through 4, shown separately for clarity of illustration, the blades of the second embodiment of the impeller for refrigerant compressors shown in FIGS. 5 through 7 being substantially the same;

FIG. 16 is a front end view of the blade shown in FIG. 15;

FIG. 17 is a left side view of the blade shown in FIG. 15;

FIG. 18 is a right side view of the blade shown in FIG. 15;

FIG. 19 is a rear end view of the blade shown in FIG. 15;

FIG. 20 is a top view of the blade shown in FIG. 15; and,

FIG. 21 is a bottom view of the blade shown in FIG. 15.

The blades of FIGS. 8 through 21 are shown twice the size of the blades in FIGS. 2 through 4.

The difference between the first and second embodiments resides in the appearance of the slots in the top surface.