US3566851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magneto for multicylinder engines of automotive vehicles
Assignee: Robert Bosch GmbH
•
Filing: 1969-02-20
•
Granted: 1971-03-02
•
Expires: 1989-02-20
Abstract
Abstract A rotating magnet-type magnetos for use with multicylinder engines of automotive vehicles wherein a rotor with several equidistant radially magnetized permanent magnets carries a breaker cam which opens one of two sets of breaker contacts when the other set is closed and vice versa. Each set of breaker contacts is connected with one end of a winding in one of two armatures which are mounted on a stationary plate adjacent to the path of movement of permanent magnets. The armatures overlie each other and are magnetically connected in parallel with each other. The other end of each winding is connected with the ignition coil. The plate carries an auxiliary armature which can supply current to the lighting system of the vehicle.
Inventors
- 👤 Gustav Pfrommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:36
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/48; F; F02; F02P; F02P1/00; H02K21/12; H02K21/22; H02K21/222; H02K21/225
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
In a magneto, particularly in a magneto for multicylinder internal combustion engines, a combination comprising stationary support means; rotor means including permanent magnet means; a pair of ignition armatures mounted on said support means adjacent to the path of movement of said magnet means and magnetically connected in parallel with each other, each of said armatures comprising a winding; a pair of breaker means each connected with the winding of one of said armatures and each having an open and a closed position; and rotary cam means for opening one of said breaker means when the other breaker means is closed, and vice versa.
Claim 2
Dependent Claim
104 words
In a magneto, particularly in a magneto for multicylinder internal combustion engines, a combination comprising stationary support means; rotor means including permanent magnet means; a pair of ignition armatures mounted on said support means adjacent to the path of movement of said magnet means and magnetically connected in parallel with each other, each of said armatures comprising a winding; a pair of breaker means each connected with the winding of one of said armatures and each having an open and a closed position; and rotary cam means for opening one of said breaker means when the other breaker means is closed, and vice versa.
Claim 3
Dependent Claim
14 words
A combination as defined in claim 1, wherein said ignition armatures overlie each other.
Claim 4
Dependent Claim
32 words
A combination as defined in claim 2, further comprising auxiliary armature means provided on said support means and located opposite said overlying armatures with reference to the axis of said rotor means.
Claim 5
Dependent Claim
17 words
A combination as defined in claim 1, wherein said cam means is rigid with said rotor means.
Claim 6
Dependent Claim
26 words
A combination as defined in claim 4, wherein said breaker means are located diametrically opposite each other with reference to the axis of said rotor means.
Claim 7
Dependent Claim
80 words
A combination as defined in claim 1, wherein each of said ignition armatures further comprises a core mounted on said support means and wherein each of said windings surrounds the respective core, each of said windings having two ends one of which is connected to one of said breaker means and a second end, and further comprising a pair of capacitor means each connected with the one end of one of said windings in parallel with the respective breaker means.
Claim 8
Dependent Claim
21 words
A combination as defined in claim 1, wherein said permanent magnet means comprises a plurality of equidistant radially magnetized permanent magnets.
Claim 9
Dependent Claim
34 words
A combination as defined in claim 7, wherein each of said armatures further comprises a laminated core surrounded by the respective winding and inwardly adjacent to the path of movement of said permanent magnets.
Claim 10
Dependent Claim
18 words
A combination as defined in claim 1, wherein said cam means constitute the hub of said rotor means.
Claim 11
Dependent Claim
14 words
A combination as defined in claim 1, wherein said rotor means constitutes a flywheel.
References Cited (Backward Citations)
US1507307A
Cited
US2761996A
Cited
US2569461A
Cited
US2790914A
Cited
US2930826A
Cited
US3034005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |