US3611025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition system utilizing transistor for internal combustion engines
Assignee: POVASKE STROJARNE NARODNY PODN
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Filing: 1968-09-30
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Granted: 1971-10-05
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Expires: 1988-09-30
Abstract
Abstract A transistor has a control electrode connected to the feedback winding of an ignition transformer. A storage capacitor is connected to the primary winding of the ignition transformer via the input-output path of the transistor and a starting stabilization diode.
Inventors
- 👤 Karol Longauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
F; F02; F02P; F02P1/00; F02P1/08; F02P1/086
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
99 words
An ignition system, comprising a supply circuit, starting pulse means, an ignition transformer having a primary winding, a secondary winding connected to an igniting device and a feedback winding, a semiconductor switching device having input and output electrodes, an input-output path and a control electrode connected to the feedback winding of said ignition transformer, a starting stabilization diode connected to said starting pulse means, and a storage capacitor supplied by said supply circuit and connected in parallel to the primary winding of said ignition transformer and the input-output path of said semiconductor switching device and said starting stabilization diode.
Claim 2
Dependent Claim
99 words
An ignition system, comprising a supply circuit, starting pulse means, an ignition transformer having a primary winding, a secondary winding connected to an igniting device and a feedback winding, a semiconductor switching device having input and output electrodes, an input-output path and a control electrode connected to the feedback winding of said ignition transformer, a starting stabilization diode connected to said starting pulse means, and a storage capacitor supplied by said supply circuit and connected in parallel to the primary winding of said ignition transformer and the input-output path of said semiconductor switching device and said starting stabilization diode.
Claim 3
Dependent Claim
16 words
An ignition system as claimed in claim 1, wherein said semiconductor switching device comprises a transistor.
Claim 4
Dependent Claim
27 words
An ignition system as claimed in claim 2, further comprising a starting pulse circuit connected in parallel with said starting stabilization diode for providing a starting pulse.
Claim 5
Dependent Claim
60 words
An ignition system as claimed in claim 2, further comprising a shaping capacitor connected in parallel with said starting stabilization diode, a diode and a starting pulse circuit connected in parallel with said starting stabilization diode for providing a starting pulse, said starting pulse circuit comprising an alternator having a starting coil connected via said diode to said shaping capacitor
Claim 6
Dependent Claim
37 words
An ignition system as claimed in claim 4, further comprising a variable capacitor mechanically coupled to the alternator of said starting pulse circuit and connected to said storage capacitor via the primary winding of said ignition transformer.
Claim 7
Dependent Claim
57 words
An ignition system as claimed in claim 4, wherein said transistor has an input-control path, and further comprising a variable capacitor mechanically coupled to the alternator of said starting pulse circuit and connected to said storage capacitor via the input-control path of said transistor and said starting stabilization diode and the primary winding of said ignition transformer.
Claim 8
Dependent Claim
39 words
An ignition system as claimed in claim 4, wherein the alternator of said starting pulse circuit has a supply coil, said supply coil and the starting coil of said alternator being positioned in operative inductive proximity with each other.
Claim 9
Dependent Claim
74 words
An ignition system as claimed in claim 4, further comprising a rectifying diode and wherein the alternator of said starting pulse circuit has a supply coil connected to said ignition transformer in the first half cycle of the alternator current via said rectifying diode and said storage capacitor and in the second half cycle of said alternator current via said diode, the starting stabilization diode of said starting pulse circuit and said shaping capacitor.
Claim 10
Dependent Claim
33 words
An ignition system as claimed in claim 4, wherein the alternator of said starting pulse circuit has a galvanomagnetic resistor connected to said storage capacitor via the primary winding of said ignition transformer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |