Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
Dynamoelectric machine with permanent magnet excitation comprising a magnetizable stator structure, a magnetizable rotor structure, wedge-shaped pole cores disposed on one of said structures in radially spaced relation thereto so as to form an airgap between each of said pole cores and the other of said structures, said cores being angularly spaced from each other, each of said cores having surface means, tapering toward said one structure, abutment members disposed in angularly spaced relation to said respective pole cores, ceramic permanent magnet blocks held between said respective pole cores and abutment members, each one of said blocks having opposite faces in face-to-face engagement with said surface means permanent magnet one of said respective pole cores and one of said respective abutment members, and securing means securing said core to said one structure so as to leave an airgap therebetween, whereby said blocks are held by being wedged between said respective pole cores and abutment members.
Claim 2
Dependent Claim
155 words
Dynamoelectric machine with permanent magnet excitation comprising a magnetizable stator structure, a magnetizable rotor structure, wedge-shaped pole cores disposed on one of said structures in radially spaced relation thereto so as to form an airgap between each of said pole cores and the other of said structures, said cores being angularly spaced from each other, each of said cores having surface means, tapering toward said one structure, abutment members disposed in angularly spaced relation to said respective pole cores, ceramic permanent magnet blocks held between said respective pole cores and abutment members, each one of said blocks having opposite faces in face-to-face engagement with said surface means permanent magnet one of said respective pole cores and one of said respective abutment members, and securing means securing said core to said one structure so as to leave an airgap therebetween, whereby said blocks are held by being wedged between said respective pole cores and abutment members.
Claim 3
Dependent Claim
59 words
In a machine according to claim 1, each one of said permanent magnetic blocks having respective north and south poles adjacent said surface means of said one of said respective pole cores and said one of said respective abutment members and having between said north and south poles a length shorter than the largest transverse dimension of the block.
Claim 4
Dependent Claim
48 words
In a machine according to claim 2, said permanent magnet blocks being respectively inserted between each of said pole cores and the adjacent one of said abutment members, each of said blocks having the shape of an elongated prism whose longest dimension extends parallel to said opposite faces.
Claim 5
Dependent Claim
23 words
In a machine according to claim 1, said securing means being nonmagnetic screw means which fasten said pole cores to said one structure.
Claim 6
Dependent Claim
22 words
Machine according to claim 1, comprising means for adjusting a magnetic stray flux path between said pole cores and said one structure.
Claim 7
Dependent Claim
31 words
Machine according to claim 5, wherein said stray-path adjusting means comprise a ferromagnetic screw member adjustably seated in one of said two structures and being adjustable relative to the other structure.