Magneto ignition system for an internal combustion engine
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0424255
(1982-09-27)
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우선권정보 |
DE-3201534 (1982-01-20) |
발명자
/ 주소 |
- Podrapsky Jiri (Rosstal DEX)
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출원인 / 주소 |
- Robert Bosch GmbH (Stuttgart DEX 03)
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인용정보 |
피인용 횟수 :
7 인용 특허 :
2 |
초록
▼
To prevent reverse-direction operation of an internal combustion (IC) engine to which the ignition system is connected which, possibly, may lead to dangerous conditions if the IC engine is used, for example in a chain saw, lawn mower, or the like, a diode (35) is connected across a second, ignition
To prevent reverse-direction operation of an internal combustion (IC) engine to which the ignition system is connected which, possibly, may lead to dangerous conditions if the IC engine is used, for example in a chain saw, lawn mower, or the like, a diode (35) is connected across a second, ignition instant modifying R/C circuit (34, 33) in the control network (29) of the magneto ignition system, which includes a first R/C circuit (30, 31) to provide for immediate conduction of a control transistor (27) and hence blocking of a controlled ignition transistor (21) and disconnection of the ignition system in case of reverse rotation. This system is a further development of the basic ignition system described in U.S. Pat. No. 4,188,929, to which reference is made.
대표청구항
▼
Magneto ignition system for an internal combustion engine having a spark gap, said system including an ignition coil system having a primary winding (15); two terminals (A, B) on the primary winding; a secondary winding (16); an armature core (14, 14a) and a rotating magnet (12) coupled to rotate wi
Magneto ignition system for an internal combustion engine having a spark gap, said system including an ignition coil system having a primary winding (15); two terminals (A, B) on the primary winding; a secondary winding (16); an armature core (14, 14a) and a rotating magnet (12) coupled to rotate with the engine; an electronic switch (21) connected to interrupt current flow through the primary winding at an ignition instant; an electronic control circuit (29) coupled to the primary winding and connected to control conduction or blocking of the electronic switch (21) and having a control switch (27); a first R/C series timing circuit (30, 31) connected to said control switch (27) and across the primary winding, a Zener diode serially connected in said first R/C series circuit, and a second series R/C circuit (34, 33) to modify the conduction characteristic of the first timing circuit and provide a change of timing instant as a function of frequency of voltages induced in the primary winding, and hence provide for speed-dependent ignition advance, said timing circuits controlling said control switch (27); and comprising, in accordance with the invention, means for insuring operation of the engine in a predetermined direction only including a diode (35) connected in parallel to the second timing circuit (34, 33), the diode (35) being poled in a direction opposite to the polarization of the Zener diode (32); and wherein the second timing circuit (34, 33) has one of its terminals connected to that one of terminals (A) of the primary winding (15) which, at the ignition instant, has a voltage which is high with respect to the other terminal (B) thereof.
이 특허에 인용된 특허 (2)
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Podrapsky Jiri (Buchschwabach DEX) Orova Josef (Schwabach DEX), Internal combustion engine magneto-type ignition system with electronically controlled spark advance.
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Orova Josef (Schwabach DEX) Podrapsky Jiri (Buchschwabach DEX), Magneto ignition system with increased spark energy.
이 특허를 인용한 특허 (7)
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Piteo Michael J. (Enfield CT), Anti-reverse operation of solid state inductive magneto.
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Nash Donald R. (Berkey OH), Capacitive discharge magneto ignition system.
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Hashizume Atsushi (Himeji JPX), Ignition device for an internal combustion engine.
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Chrintz-Gath Per-Anders (Vastervik SEX) Udden Per J. (Ankarsrum SEX), Ignition system for an internal-combustion engine, particularly for use in a chain saw or the like.
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Nash Donald R. (Berkey OH), Magneto for ignition system.
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Kiessling, Leo, Rotation direction detector in ignition equipment of an internal combustion engine.
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McDonald Richard J., Spark gap device and method of manufacturing same.
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