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1.发明授权
公开(公告)号：US3874349A
公开(公告)日：1975-04-01
申请号：US35913773
申请日：1973-05-10
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
CPC classification number: F02P7/03 , F02P5/155 , F02P5/1556 , F02P7/035 , F02P11/025 , Y02T10/46
Abstract: An internal-combustion engine includes a flywheel driven alternator connected to charge an ignition system capacitor which is discharged to the several spark plugs by individually controlled rectifiers. A pulse generator coupled to the flywheel includes as many triggering coils as there are cylinders and a permanent magnet unit for generating alternate positive and negative polarity pulses in each of the triggering coils. A steering diode network connects one end of each triggering coil to a related controlled rectifier for an associated cylinder and the opposite end of each coil to the controlled rectifier for a different cylinder. At low speeds the first pulses are connected to trigger the controlled rectifiers in proper sequence with the opposite polarity pulses blocked by an auxiliary controlled rectifier. At higher speeds, the auxiliary controlled rectifier conducts and allows the opposite polarity pulses to trigger the controlled rectifiers and establish an automatic spark timing advance. An actuating circuit in the form of a level-detecting circuit or electronic tachometer network actuates the auxiliary controlled rectifier and holds it conductive at all speeds above a selected level. The actuating circuit and auxiliary controlled rectifier circuit are constructed to minimize hysteresis effects and establish the automatic spark advance at a selected speed.
Abstract translation: 一种内燃机包括飞轮驱动的交流发电机，其连接用于对点火系统电容器进行充电，点火系统电容器通过单独控制的整流器被排放到多个火花塞。 耦合到飞轮的脉冲发生器包括与气缸一样多的触发线圈和用于在每个触发线圈中产生交替的正极性和负极性脉冲的永磁体单元。 转向二极管网络将每个触发线圈的一端连接到相关联的气缸的相关可控整流器，并将每个线圈的相对端连接到用于不同气缸的可控整流器。 在低速时，第一脉冲被连接以以适当的顺序触发受控整流器，并且由辅助可控整流器阻挡相反的极性脉冲。 在较高的速度下，辅助控制整流器导通并允许相反的极性脉冲触发受控整流器并建立自动火花定时提前。 电平检测电路或电子转速计网络形式的致动电路致动辅助受控整流器并将其保持在高于所选电平的所有速度下的导电性。 致动电路和辅助可控整流电路构造成使滞后效应最小化，并以选定的速度建立自动火花提前。
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公开(公告)号：CA1198768A
公开(公告)日：1985-12-31
申请号：CA417679
申请日：1982-12-14
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
IPC: F02P3/08
Abstract: Capacitor Discharge Ignition System For Internal Combustion Engines The invention provides a modular ignition system using a separate ignition module (16) for each engine cylinder. The modules (16) can be arranged for use with engines having differing numbers of cylinders. Each module (16) includes a main capacitor (22) to be charged by the engine's alternator (11). The main capacitor (22) is discharged through a main silicon controlled rectifier (23) into an ignition transformer (28) to provide a high voltage pulse to fire a spark plug (15). A pilot capacitor (26) is also charged by the alternator (11) to provide power to a pilot SCR (36). The pilot SCR (36) has its gate connected to a trigger winding (14) in the alternator (11) to discharge the pilot capacitor (26) into the gate of the main SCR (23) to fire the spark plug (15). The pilot capacitor (26) is also connected to the cathode of the main SCR (23). This connection raises the voltage level of the pilot capacitor (26) during the discharge pulse to assure gate current to the main SCR (23) during the critical turn on period. A biasing network including resistors (39,40) and a bias capacitor (41) is provided in each of the modules (16) to maintain a substantially constant ignition angle, regardless of engine speed. The biasing networks can be interconnected to assure uniform timing for all of the spark plugs (15).
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公开(公告)号：AU9145482A
公开(公告)日：1983-06-23
申请号：AU9145482
申请日：1982-12-13
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: The invention provides a modular ignition system using a separate ignition module (16) for each engine cylinder. The modules (16) can be arranged for use with engines having differing numbers of cylinders. Each module (16) includes a main capacitor (22) to be charged by the engine's alternator (11). The main capacitor (22) is discharged through a main silicon controlled rectifier (23) into an ignition transformer (28) to provide a high voltage pulse to fire a spark plug (15). A pilot capacitor (26) is also charged by the alternator (11) to provide power to a pilot SCR (36). The pilot SCR (36) has its gate connected to a trigger winding (14) in the alternator (11) to discharge the pilot capacitor (26) into the gate of the main SCR (23) to fire the spark plug (15). The pilot capacitor (26) is also connected to the cathode of the main SCR (23). This connection raises the voltage level of the pilot capacitor (26) during the discharge pulse to assure gate current to the main SCR (23) during the critical turn on period. A biasing network including resistors (39, 40) and a bias capacitor (41) is provided in each of the modules (16) to maintain a substantially constant ignition angle, regardless of engine speed. The biasing networks can be interconnected to assure uniform timing for all of the spark plugs (15).
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公开(公告)号：DE3246257A1
公开(公告)日：1983-06-30
申请号：DE3246257
申请日：1982-12-14
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: The invention provides charging control circuitry (20) for a capacitor discharge ignition system (10) having power capacitors (21) connected to be discharged by main electronic switches such as SCR's (23) into ignition transformers (24) to sequentially fire the engine's spark plugs (16). The charging control circuits (20) each include a charging SCR (26) to limit charging current flow to the main capacitor (21), unless a discharge pulse into the ignition transformer (24) has occurred in the recent past. Thus if a short circuit in either the main capacitor (21) or main SCR (23) in one of the ignition circuits (19) prevents that ignition circuit from properly functioning, the charging SCR (26) will limit the flow of charging current to the defective circuit and allow the other ignition circuit (19) to receive charging current. The gate of the charging SCR (26) is controlled by an amplified signal from a memory capacitor (28) which is charged by the discharge pulse from the corresponding ignition circuit (19). The same memory capacitor (28) also provides power to drive an indicator such as a light emitting diode (40).
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公开(公告)号：CA1044750A
公开(公告)日：1978-12-19
申请号：CA233042
申请日：1975-08-07
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES HAVING TIMING STABILIZING MEANS Ignition in a six-cylinder internal combustion engine is supplied by a pair of similar alternator-driven, alternate-firing, capacitor discharge ignition systems, each discharged to the several spark plugs of its own three cylinders by individual controlled rectifiers. A common trigger pulse generator is magnetically coupled to the engine flywheel and includes three individual trigger coils for generating properly referenced and angularly spaced pulses, each coil producing alternating positive and negative polarity pulses. A steering diode network connects one end of each triggering coil to a related controlled rectifier for an associated spark plug in one cylinder group and the opposite end of each coil to the controlled rectifier for a spark plug in the second cylinder group. Each ignition system includes a bias capacitor connected in series with the output of the three triggering coils to maintain an essentially constant ignition angle relative to trigger coil position over a wide range of engine speeds, and to establish back bias on each controlled rectifier gate-to-cathode junction during the intervals between trigger pulses. A pair of series connected resistors is connected in parallel with the bias capacitor with the center nodes supplying only a portion of the bias capacitor voltage to the gate to cathode junction of the related controlled rectifier in the absence of the triggering pulse. For a three cylinder engine a single one of the ignition systems is employed, and uses a wye-connection of the trigger coils in the trigger generator, the neutral wire being brought out and connected to the bias capacitor.
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Patent Agency Ranking
公开(公告)号：AU7130074A
公开(公告)日：1976-01-22
申请号：AU7130074
申请日：1974-07-17
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O , BECK ROBERT J , SLEDER RICHARD L
Abstract: A two cylinder, two cycle engine for an outboard motor includes an alternator driven, capacitor discharge ignition system. The alternator includes an annular permanent magnet secured within a flywheel skirt and includes a pair of circumferential opposite poles with diametrical spaced neutral areas. The magnet is a flexible ferrite strip with a butt joint at one of the neutral areas. A stator assembly is mounted within the annular rotor and includes a semicircular core with a charging coil at each end. Each movement of the magnetic gap means past the coils generates a pulse. A trigger coil within a housing is mounted in coplanar relation between the charging coils, with a pole aligned with and spaced from the stator core. The housing is rotatably mounted and includes an integral cam for positioning a throttle lever. A pair of capacitors are connected in parallel to the charging coils through steering diodes such that the one capacitor is charged from one of the polarity pulses while the other capacitor is charged from opposite polarity pulses. A common gated controlled rectifier is connected in a discharge path for both of the capacitors through individual pulse transformers and isolating diodes. Only the charged capacitor provides energy through its pulse transformer. A full wave rectifier rectifies each trigger pulse and is connected by a trigger circuit to the gate of the controlled rectifier.
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公开(公告)号：CA1331999C
公开(公告)日：1994-09-13
申请号：CA614167
申请日：1989-09-28
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: A voltage regulator for an internal combustion engine having a permanent magnet alternator and utilizing an SCR/diode bridge rectifier includes crowbar SCR overvoltage protection means. To assure that the crowbar SCR has an adequate period in which to cool off after triggered on by an overvoltage surge, crowbar SCR operation is detected to generate a control signal to activate a timer which shuts off gate drive to the main bridge SCR's and thereby shuts down the bridge for a period of time sufficient to provide crowbar SCR recovery and cool off. In its preferred embodiment, the control signal is provided by the crowbar SCR gate to cathode voltage drop during protective operation, which signal is of relatively long duration, thus allowing the use of filters to eliminate spurious triggering of the timer by transient noise signals. Feedback from the switch means supplying gate drive to the bridge SCR's is used to provide a tapered charging characteristic. Temperature detection of the mounting base temperature of the semiconductors in the SCR/diode bridge may be used to shut off the gate drive to the main bridge SCR's to prevent excessive temperature rise of the semiconductor junctions.
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公开(公告)号：CA1322041C
公开(公告)日：1993-09-07
申请号：CA608437
申请日：1989-08-15
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: A system and method for its implementation for suppressing RFI effects on an electronic control module enclosed in a metal housing includes inserting a plurality of high frequency shunts in the wires attached to the module through the housing . The shunts , comprising by-passing capacitors include one capacitor on the incoming wire disposed closely adjacent the housing and grounded thereto and another capacitor on each wire disposed closely adjacent the connection of the wire to the active circuit of the module and grounded to the circuit ground network . The housing includes a direct connection to ground and the ground network for the electronic module has a single ground connection to the housing .
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公开(公告)号：CA1193647A
公开(公告)日：1985-09-17
申请号：CA417696
申请日：1982-12-14
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: Capacitor Discharge Ignition System Having A Charging Control Means The invention provides charging control circuitry (20) for capacitor discharge ignition system (10) having power capacitors (21) connected to be discharged by main electronic switches such as SCR's (23) into ignition transformers (24) to sequentially fire the engine's spark plugs (16). The charging control circuits (20) each include a charging SCR (26) to limit charging current flow to the main capacitor (21), unless a discharge pulse into the ignition transformer (24) has occurred in the recent past. Thus if a short circuit in either the main capacitor (21) or main SCR (23) in one of the ignition circuits (19) prevents that ignition circuit from properly functioning, the charging SCR (26) will limit the flow of charging current to the defective circuit and allow the other ignition circuit (19) to receive charging current. The gate of the charging SCR (26) is controlled by an amplified signal from a memory capacitor (28) which is charged by the discharge pulse from he corresponding ignition circuit (19). The same memory capacitor (28) also provides power to drive an indicator such as a light emitting diode (40).
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公开(公告)号：AU537928B2
公开(公告)日：1984-07-19
申请号：AU9145582
申请日：1982-12-13
Applicant: BRUNSWICK CORP
Inventor： FITZNER ARTHUR O
Abstract: The invention provides charging control circuitry (20) for a capacitor discharge ignition system (10) having power capacitors (21) connected to be discharged by main electronic switches such as SCR's (23) into ignition transformers (24) to sequentially fire the engine's spark plugs (16). The charging control circuits (20) each include a charging SCR (26) to limit charging current flow to the main capacitor (21), unless a discharge pulse into the ignition transformer (24) has occurred in the recent past. Thus if a short circuit in either the main capacitor (21) or main SCR (23) in one of the ignition circuits (19) prevents that ignition circuit from properly functioning, the charging SCR (26) will limit the flow of charging current to the defective circuit and allow the other ignition circuit (19) to receive charging current. The gate of the charging SCR (26) is controlled by an amplified signal from a memory capacitor (28) which is charged by the discharge pulse from the corresponding ignition circuit (19). The same memory capacitor (28) also provides power to drive an indicator such as a light emitting diode (40).
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