US4766362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulatable permanent magnet alternator
Assignee: Simmonds Precision Products Inc
•
Filing: 1986-11-24
•
Granted: 1988-08-23
•
Expires: 2006-11-24
Abstract
No abstract record available.
Inventors
- 👤 John W. Sadvary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:13
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/02; H02K21/021; H02K21/028; H02K21/12; H02K21/14; H02K21/16
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
133 words
A regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial and concentric with said rotor member; said sleeve encompassing and connected to said rotor member, said sleeve extending between said poles of said rotor member and said poles of said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means.
Claim 2
Dependent Claim
133 words
A regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial and concentric with said rotor member; said sleeve encompassing and connected to said rotor member, said sleeve extending between said poles of said rotor member and said poles of said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means.
Claim 3
Dependent Claim
17 words
The alternator of claim 1 wherein each bridging member comprises a stack of laminations of ferromagnetic material.
Claim 4
Dependent Claim
20 words
The alternator of claim 2 wherein the number of said bridging members is equal to the number of rotor poles.
Claim 5
Dependent Claim
19 words
The alternator of claim 1 wherein said means for shifting the angular position of the sleeve comprises amplifier means.
Claim 6
Dependent Claim
19 words
The alternator of claim 4 wherein said means for changing the position of said sleeve further comprises electromagnetic means.
Claim 7
Dependent Claim
20 words
The alternator of claim 1 wherein said means for shifting the position of said sleeve further comprises permanent magnet means.
Claim 8
Independent Claim
172 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial and concentric with said rotor member; said sleeve encompassing and connected to said rotor member, said sleeve extending between said poles of said rotor member and said poles of said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator; rotating said rotor means to produce a voltage of at most low variance.
Claim 9
Independent Claim
172 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial and concentric with said rotor member; said sleeve encompassing and connected to said rotor member, said sleeve extending between said poles of said rotor member and said poles of said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator; rotating said rotor means to produce a voltage of at most low variance.
Claim 10
Dependent Claim
12 words
The method of claim 7 wherein said voltage produced is substantially constant.
Claim 11
Dependent Claim
15 words
The method of claim 7 further comprising connecting a variable load to said output means.
Claim 12
Dependent Claim
134 words
A regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means, said means for shifting the position of said sleeve comprising electromagnetic means.
Claim 13
Dependent Claim
134 words
A regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means, said means for shifting the position of said sleeve comprising electromagnetic means.
Claim 14
Dependent Claim
17 words
The alternator of claim 1 wherein each bridging member comprises a stack of laminations of ferromagnetic material.
Claim 15
Dependent Claim
20 words
The alternator of claim 11 wherein the number of said bridging members is equal to the number of rotor poles.
Claim 16
Dependent Claim
19 words
The alternator of claim 2 wherein said means for shifting the angular position of the sleeve comprises amplifier means.
Claim 17
Dependent Claim
131 words
The regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means, said means for shifting comprising an electrically conducting disk.
Claim 18
Dependent Claim
131 words
The regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means, said means for shifting comprising an electrically conducting disk.
Claim 19
Dependent Claim
17 words
The alternator of claim 14 wherein each bridging member comprises a stack of laminations of ferromagnetic material.
Claim 20
Dependent Claim
20 words
The alternator of claim 15 wherein the number of said bridging members is equal to the number of rotor poles.
Claim 21
Dependent Claim
19 words
The alternator of claim 14 wherein said means for shifting the angular position of the sleeve comprises amplifier means.
Claim 22
Independent Claim
176 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator, said means for changing the angular position of said sleeve comprising an electrically conducting disk; rotating said rotor means to produce a voltage of at most low variance.
Claim 23
Independent Claim
176 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator, said means for changing the angular position of said sleeve comprising an electrically conducting disk; rotating said rotor means to produce a voltage of at most low variance.
Claim 24
Dependent Claim
12 words
The method of claim 18 wherein said voltage produced is substantially constant.
Claim 25
Dependent Claim
15 words
The method of claim 18 further comprising connecting a variable load to said output means.
Claim 26
Independent Claim
173 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of sadi members; armature windings on the other of said members; a hollow, cylindrial sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator, said means for shifting the position of said sleeve comprising electromagnet means, rotating said rotor means to produce a voltage of at most low variance.
Claim 27
Independent Claim
173 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of sadi members; armature windings on the other of said members; a hollow, cylindrial sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator, said means for shifting the position of said sleeve comprising electromagnet means, rotating said rotor means to produce a voltage of at most low variance.
Claim 28
Dependent Claim
12 words
The method of claim 21 wherein said voltage produced is substantially constant.
Claim 29
Dependent Claim
15 words
The method of claim 21 further comprising connecting a variable load to said output means.
Claim 30
Dependent Claim
135 words
A regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means, said means for shifting the angular position of said sleeve comprising spring means.
Claim 31
Dependent Claim
135 words
A regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby shifting the magnetic flux linkage between the field means and the armature winding means, said means for shifting the angular position of said sleeve comprising spring means.
Claim 32
Dependent Claim
17 words
The alternator of claim 24 wherein each bridging member comprises a stack of laminations of ferromagnetic material.
Claim 33
Dependent Claim
20 words
The alternator of claim 25 wherein the number of said bridging members is equal to the number of rotor poles.
Claim 34
Dependent Claim
19 words
The alternator of claim 24 wherein said means for shifting the angular position of the sleeve comprises amplifier means.
Claim 35
Independent Claim
173 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator, said means for shifting the angular position of said sleeve comprising spring means, rotating said rotor means to produce a voltage of at most low variance.
Claim 36
Independent Claim
173 words
A method of providing voltage of at most low variance during output load and rotor speed changes comprising: providing a regulatable permanent magnet alternator comprising: a stator member having at least one pair of poles; a rotor member having at least one pair of poles; permanent magnet field means on one of said members; armature windings on the other of said members; a hollow, cylindrical sleeve coaxial with said rotor member and connected to said rotor member, said sleeve extending between said rotor member and said stator member, said sleeve comprising a plurality of peripherally spaced bridging members, each said bridging member including ferromagnetic material; means for shifting the angular position of said bridging members with respect to the rotor poles as the rotor rotates and thereby the magnetic flux linkage between the field means and the armature winding means; and output means connected to said stator, said means for shifting the angular position of said sleeve comprising spring means, rotating said rotor means to produce a voltage of at most low variance.
Claim 37
Dependent Claim
12 words
The method of claim 28 wherein said voltage produced is substantially constant.
Claim 38
Dependent Claim
15 words
The method of claim 28 further comprising connecting a variable load to said output means.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |