US4771200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchro generator asymmetric magnetically conductive rotor
Assignee: Voestalpine Metal Forming GmbH
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Filing: 1987-05-26
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Granted: 1988-09-13
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Expires: 2007-05-26
Abstract
Abstract A synchro generator comprising a stator having a signal coil with at least two signal windings offset at predetermined angles relative to each other, and an exciter coil having an exciter winding concentric with the signal coil. A core of magnetically conductive material is allocated to at least one of the coils, and comprises a rotor of magnetically conductive material asymmetric relative to its axis of rotation. The signal coil is a cylindrical coil with obliquely wound windings, and the exciter coil is a cylindrical coil with a straight (spool) wound winding. A substantially cylindrical shell of magnetically conductive material is allocated to the coils and the rotor comprises at least a pair of diametrically opposed conducting members of magnetically conductive material.
Inventors
- 👤 Georg Ritzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:03
CPC Classifications
H; H02; H02K; H02K29/00; H02K29/06; H02K29/12; H01; H01F; H01F21/00; H01F21/02; H01F21/06; H01F21/065; H02K19/00; H02K19/16; H02K19/22; H02K19/24; H02K24/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
127 words
A synchro generator, comprising: a stator including a signal coil having a least two signal windings offset at predetermined angles relative to each other and an exciter coil having an exciter winding concentric with said signal coil; a core of magnetically conductive material allocated to at least one of said coils, said core including a rotor of magnetically conductive material asymmetric to its axis of rotation; said signal coil (5) being a cylindrical coil with obliquely wound windings and said exciter coil (4) being a cylindrical coil with a straight wound winding; a substantially cylindrical shell (7) of magnetically conductive material allocated to said coils (4, 5); and said rotor (2) including at least one pair of diametrically opposed conducting members (14, 15) of magnetically conductive material.
Claim 2
Dependent Claim
127 words
A synchro generator, comprising: a stator including a signal coil having a least two signal windings offset at predetermined angles relative to each other and an exciter coil having an exciter winding concentric with said signal coil; a core of magnetically conductive material allocated to at least one of said coils, said core including a rotor of magnetically conductive material asymmetric to its axis of rotation; said signal coil (5) being a cylindrical coil with obliquely wound windings and said exciter coil (4) being a cylindrical coil with a straight wound winding; a substantially cylindrical shell (7) of magnetically conductive material allocated to said coils (4, 5); and said rotor (2) including at least one pair of diametrically opposed conducting members (14, 15) of magnetically conductive material.
Claim 3
Dependent Claim
30 words
The synchro generator according to claim 1, wherein said conducting members (14, 15) comprise at least two lobes (12, 13) of sheet metal bent along the surface of a cylinder.
Claim 4
Dependent Claim
22 words
The synchro generator according to claim 1, wherein each said conducting member includes an axially offset sheet metal ring (10, 11, respectively).
Claim 5
Dependent Claim
35 words
The synchro generator according to claim 3, wherein each said lobe (12 and 13, respectively) extends from one of said two axially offset sheel metal rings (10, 11) in the direction of the other ring.
Claim 6
Dependent Claim
21 words
The synchro generator according to claim 2, wherein said lobes (12, 13) are integral with said sheet metal rings (10, 11).
Claim 7
Dependent Claim
21 words
The synchro generator according to claim 4, wherein said lobes (12, 13) are integral with said sheet metal rings (10, 11).
Claim 8
Dependent Claim
30 words
The synchro generator according to claim 6, wherein said shell (7) surrounds said coils (4, 5) on their outer surfaces and said conducting members (14, 15) rotate inside said coils.
Claim 9
Dependent Claim
30 words
The synchro generator according to claim 1, wherein said shell (7) surrounds said coils (4, 5) on their outer surfaces and said conducting members (14, 15) rotate inside said coils.
Claim 10
Dependent Claim
27 words
The synchro generator according to claim 7, wherein said shell (7) comprises at its two end pole rings (8) concentrically surrounding said sheet metal rings (10, 11).
Claim 11
Dependent Claim
27 words
The synchro generator according to claim 8, wherein said shell (7) comprises at its two ends pole rings (8) concentrically surrounding said sheet metal rings (10, 11).
Claim 12
Dependent Claim
27 words
The synchro generator according to claim 1, wherein said shell (7) comprises, at its two ends, pole rings (8) concentrically surrounding said sheet metal rings (10, 11).
Claim 13
Dependent Claim
14 words
The synchro generator according to claim 1, wherein said shell (7) is electrically conductive.
Claim 14
Dependent Claim
14 words
The synchro generator according to claim 10, wherein said shell (7) is electrically conductive.
Claim 15
Dependent Claim
14 words
The synchro generator according to claim 11, wherein said shell (7) is electrically conductive.
Claim 16
Dependent Claim
36 words
The synchro generator according to claim 1, wherein said signal coil comprises 2n individual windings, and a pair of opposing individual windings (5a, 5d) being connected in series in pole opposition to constitute a signal winding.
Claim 17
Dependent Claim
37 words
The synchro generator according to claim 1, wherein said signal coil includes six individual windings, and said signal winding is formed from a pair of opposing individual windings (e.g., 5a, 5d) connected in series in pole opposition.
Claim 18
Dependent Claim
23 words
The synchro generator according to claim 1, wherein there are at least two pairs of said signal windings offset 90° from each other.
Claim 19
Dependent Claim
32 words
The synchro generator according to claim 1, wherein each turn of each individual winding extends around 360° in a top plan view taken in the direction of the axis of the coil.
Claim 20
Dependent Claim
19 words
The synchro generator according to claim 1, wherein the signal coil (5) is arranged outside the exciter coil (4).
Claim 21
Dependent Claim
35 words
The synchro generator according to claim 9, wherein said signal coil comprises 2n individual windings, and a pair of opposing individual windings (5a, 5d) connected in series in pole opposition to constitute a signal winding.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |