초록 ▼

A wedge placed between adjacent coils in a generator comprises a wedge body having a generally triangular portion to be positioned at a radially inner location, and a radially outer portion. The radially outer portion includes ends that will be spaced at axial ends of the wedge when the wedge is pos

A wedge placed between adjacent coils in a generator comprises a wedge body having a generally triangular portion to be positioned at a radially inner location, and a radially outer portion. The radially outer portion includes ends that will be spaced at axial ends of the wedge when the wedge is positioned within a generator. The ends have a first surface spaced a first distance from an apex of the triangle. The end walls extend above the first surface at each of two spaced positions axially inwardly of the ends of the wedge. The end walls are connected to side walls that extend near circumferential edges of the wedge. An open pocket is formed within the wedge body at locations between the side walls and axially between the end walls.

대표청구항 ▼

What is claimed is: 1. A wedge for being placed between adjacent coils in a generator comprising: a wedge body having a generally triangular portion to be positioned at a radially inner location, and a radially outer portion, said radially outer portion including ends that will be spaced at axial e

What is claimed is: 1. A wedge for being placed between adjacent coils in a generator comprising: a wedge body having a generally triangular portion to be positioned at a radially inner location, and a radially outer portion, said radially outer portion including ends that will be spaced at axial ends of said wedge when said wedge is positioned within a generator, said ends having a first surface spaced a first distance from an apex of said triangular portion, and end walls extending from said first surface at each of two positions spaced axially inwardly of said ends of said wedge body, said end walls being connected to side walls extending near edges of said wedge; an open pocket formed within said wedge body at locations between said side walls and axially between said end walls; and said end walls extend to a second distance from said apex of said triangle, and said side walls extend for a third distance, said third distance between intermediate said first and second distances. 2. A wedge for being placed between adjacent coils in a generator comprising: a wedge body having a generally triangular portion to he positioned at a radially inner location, and a radially outer portion, said radially outer portion including ends that will be spaced at axial ends of said wedge when said wedge is positioned within a generator, said ends having a first surface spaced a first distance from an apex of said triangular portion, and end walls extending from said first surface at each of two positions spaced axially inwardly of said ends of said wedge body, said end walls being connected to side walls extending near edges of said wedge; and an open pocket formed within said wedge body at locations between said side walls and axially between said end walls; and outer faces of said side walls being ramped at an angle toward each other, and inner faces of said side walls being generally parallel to each other. 3. The wedge as set forth in claim 1, wherein said side walls are rounded at a location where they merge into said end walls. 4. The wedge as set forth in claim 2, wherein said end walls extend to a second distance from said apex of said triangle, and said side walls extend for a third distance, said third distance between intermediate said first and second distances. 5. The wedge as set forth in claim 1, wherein a ratio of an axial length of said pocket to an axial length of each of said end walls is between 5 and 7, including the end points. 6. The wedge as set forth in claim 1, wherein a ratio of a height of said side walls above a nominal surface of said pocket relative to a height of said end walls above said nominal surface of said pocket is between 0.4 and 0.7, including the end points. 7. The wedge as set forth in claim 1, wherein said first surface, and an outer surface of said end walls being curved about radii of curvature spaced from said wedge body, and an outer surface of said end walls, and said pocket are not curved, and are generally parallel to each other. 8. A wedge for being placed between adjacent coils in a generator comprising: a wedge body having a generally triangular portion to be positioned at a radially inner location, and a radially outer portion, said radially outer portion including ends that will be spaced at axial ends of said wedge when said wedge is positioned within a generator, said ends having a first surface spaced a first distance from an apex of said triangular portion, and end walls extending from said first surface at each of two positions spaced axially inwardly of said ends of said wedge body, said end walls being connected to side walls extending near circumferential edges of said wedge; an open pocket formed within said wedge body at locations between said side walls and axially between said axial end walls, wherein a ratio of an axial length of said pocket to an axial length of each of said end walls is between 5 and 7, including the end points; said end walls extending to a second distance from said apex of said triangle, and said side walls extending for a third distance, said third distance between intermediate said first and second distances, a ratio of a height of said side walls above a nominal surface of said pocket relative to a height of said end walls above said nominal surface of said pocket is between 0.4 and 0.7, including the end points; said side walls being rounded at a location where they merge into said end walls; outer faces of said side walls being ramped at an angle toward each other, inner faces of said side walls being generally parallel to each other; and said first surface, and an outer surface of said end walls being curved about radii of curvature spaced from said wedge body, and an outer surface of said end walls, and said pocket not being curved, and being generally parallel to each other. 9. A generator comprising: a stator; a rotary shaft to be driven to rotate about an axis within said stator and having a plurality of field coils positioned circumferentially spaced around an axis of rotation of said rotary shaft; and a plurality of wedges placed between adjacent coils in a generator, each wedge having a wedge body with a generally triangular portion positioned at a radially inner location, and a radially outer portion, said radially outer portion including ends spaced at axial ends of said wedge, said ends having a first surface spaced a first distance from an apex of said triangular portion, and end walls extending from said first surface at each of two positions spaced axially inwardly of said ends of said wedge body, said end walls being connected to side walls extending near edges of said wedge, and an open pocket formed within said wedge body at locations between said side walls and axially between said end walls. 10. The generator as set forth in claim 9, wherein said end walls extend to a second distance from said apex of said triangle, and said side walls extend for a third distance, said third distance between intermediate said first and second distances. 11. The generator as set forth in claim 9, wherein said side walls are rounded at a location where they merge into said end walls. 12. The generator as set forth in claim 9, wherein outer faces of said side walls are ramped at an angle toward each other and inner faces of said side walls are generally parallel to each other. 13. The generator as set forth in claim 9, wherein a ratio of an axial length of said pocket to an axial length of each of said end walls is between 5 and 7, including the end points. 14. The generator as set forth in claim 9, wherein a ratio of a height of said side walls above a nominal surface of said pocket relative to a height of said end walls above said nominal surface of said pocket is between .4 and .7, including the end points. 15. The generator as set forth in claim 9, wherein said first surface, and an outer surface of said end walls being curved about radii of curvature spaced from said wedge body, and an outer surface of said end walls, and said pocket, are not curved, and are generally parallel to each other.