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    • 65. 发明公开
    • Direct current ignition system
    • Gleichstrom-Zündungssystem。
    • EP0463800A2
    • 1992-01-02
    • EP91305578.6
    • 1991-06-20
    • Cooper Industries Inc.
    • Howson, PeterDe Wit, Didier, M.A.T.
    • F02P3/08F02P9/00F02P7/03
    • F02P9/002F02B1/04F02P3/0838F02P7/035F02P9/007
    • This invention discloses a system for initiating and enhancing combustion of fuel and fuel-air mixtures by discharging electrical energy in a spark gap.
      The energy to breakdown the spark gap is supplied by a high voltage direct current source which supplies a voltage high enough to cause initiation of the spark without the need for an intermediate transformer. Control of the high voltage is by way of a semiconductor switch, which is preferably a bulk photoconductive switch. Such a switch is capable of withstanding the high voltage applied across it when it is switched off.
      There may also be provided a further source of high voltage which supplies energy to the spark gap at a lower voltage then the first source after the spark has been initiated. Thus the length of time the spark lasts for may be controlled. This is particularly useful for use with lean fuel mixtures for fuel economy or with diluted fuel mixtures diluted through exhaust gas re-circulation for reduced emissions.
    • 本发明公开了一种通过在火花隙中排出电能来启动和增强燃料和燃料 - 空气混合物的燃烧的系统。 击穿火花隙的能量由高压直流电源提供,高压直流电源提供足够高的电压以引起火花的启动,而不需要中间变压器。 高电压的控制是通过半导体开关,其优选地是体光电导开关。 这样的开关能够承受当它被关闭时施加在其上的高电压。 还可以提供另外的高电压源,其在火花被启动之后以较低的电压向第一源提供能量到火花隙。 因此,可以控制火花持续的时间长度。 这对于燃油经济性的稀燃燃料混合物或通过废气再循环稀释的稀释燃料混合物来减少排放特别有用。
    • 66. 发明公开
    • APPARATUS AND METHOD FOR CONTROLLING THE AIR/FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE
    • 方法和装置用于控制空气燃料比内燃发动机。
    • EP0461156A1
    • 1991-12-18
    • EP90904078.0
    • 1990-02-20
    • CATERPILLAR INC.
    • EARLESON, Walter, E.MIRHAKIMI, Siamak
    • F02B37F02D23F02D35F02D41F02D43F02D45F02P5F02P9F02P15
    • F02P15/006F02D35/021F02P5/045F02P5/1455F02P9/007Y02T10/46
    • Dans la présente invention, un système de commande électronique (12) est utilisé pour commander la proportion air/carburant dans la chambre de combustion d'un moteur (46) en réponse à des paramètres moteur détectés. Plus particulièrement, une interface de magnéto (106) produit un signal d'allumage transmis à une bougie (110). La bougie (110) est disposée sensiblement au centre de la chambre de combustion et allume un mélange air/carburant dans la chambre en réponse au signal d'allumage. Un détecteur (126), par exemple une sonde ionique, est disposée en plus dans la chambre de combustion (46) longitudinalement par rapport à la bougie. Le détecteur (126) produit un signal d'ionisation en réponse au front de flamme se propageant devant le détecteur (126). Un circuit tampon (112) reçoit les signaux d'allumage et d'ionisation et produit un signal de combustion en réponse à une différence temporelle entre la réception de ces signaux. Le système de commande électronique (12) reçoit le signal de combustion et calcule une proportion air/carburant en réponse à celui-ci. A la fois le signal de combustion et la proportion air/carburant qui en découle réagissent aux modifications de qualité du carburant dans la chambre de combustion. Par la suite, le système de commande (12) calcule une proportion volumétrique air/carburant. La proportion volumétrique air/carburant indique le volume d'air et de carburant dans la chambre de combustion (46), mais pas les fluctuations de qualité du carburant. Finalement, un circuit de trop-plein (56) est commandé en réponse aux proportions air/carburant de signal de combustion et volumétrique.
    • 68. 发明公开
    • Plasma ignition device
    • 等离子Zündanlage。
    • EP0434217A2
    • 1991-06-26
    • EP90312615.9
    • 1990-11-20
    • CUMMINS ENGINE COMPANY, INC.
    • Rosswurm, Mark A.Tozzi, Luigi
    • F02P9/00
    • F02P9/007F02P3/0876
    • An apparatus (30) and method for generating a highly conductive channel for the flow of plasma current between the electrodes (48) of an ignitor gap (46) device are disclosed. A high voltage transformer (T1) having a high turns ratio is used to produce a high voltage spark across an ignitor gap (46). Subsequently, a high voltage low turns ratio transformer (T2) is used to supply a pre-plasma current signal to the ignitor gap at a predetermined time following the high voltage spark thereby ensuring that the ionized channel is developed to a more conductive state prior to introduction of the pre-plasma signal into the ignitor gap. Once the sustaining voltage for sustaining plasma flow through the channel has stabilized to a sufficiently low voltage, a high current main plasma signal is supplied to the ignitor gap (46) thereby expanding plasma flow in the area surrounding the ignitor gap (46) and providing a high quality ignition source for use in internal combustion engines.
    • 公开了一种用于在点火器间隙(46)装置的电极(48)之间产生用于等离子体电流流动的高导电通道的装置(30)和方法。 使用具有高匝数比的高压变压器(T1)来产生穿过点火器间隙(46)的高电压火花。 随后,在高电压火花之后的预定时间,使用高压低匝数比变压器(T2)将预等离子体电流信号提供给点火器间隙,从而确保电离通道在 将等离子体信号引入到点火器间隙中。 一旦用于维持等离子体流过通道的维持电压已经稳定到足够低的电压,则将高电流主等离子体信号提供给点火器间隙(46),从而扩大围绕点火器间隙(46)的区域中的等离子体流,并提供 用于内燃机的高品质点火源。
    • 70. 发明公开
    • Ignition apparatus
    • 点火装置
    • EP0315348A3
    • 1990-09-12
    • EP88309972.3
    • 1988-10-24
    • NOVATECH ENERGY SYSTEMS, INC.
    • Wainwright, Basil Earle
    • F02P9/00F02P3/00
    • F02P3/01F02P9/007
    • Ignition apparatus (2) for providing plasma ignition for an engine, which ignition apparatus (2) comprises a switching circuit (4), wave form generator means (6) for generating an a.c. wave form output, a power amplifier circuit (8) for amplifying the output from the wave form generator means (6), a d.c. to d.c. inverter (10), and transformer means (12) having primary and secondary windings (14,16) the primary winding (14) being connected to the power amplifier circuit (8) for receiving the output from the power amplifier circuit (8), and the secondary winding (16) being connected to the d.c. to d.c. inverter (10), and the wave form generator means (6) and the d.c. to d.c. inverter (10) being connected in parallel so that during operation of the ignition apparatus (2) high voltage a.c. from the wave form generator means (6) carries and sustains d.c. which is from the d.c. to d.c. inverter (10) and which is required for the plasma.
    • 用于为发动机提供等离子体点火的点火装置(2),该点火装置(2)包括开关电路(4),用于产生交流电的波形发生器装置(6)。 波形输出,用于放大来自波形发生器装置(6)的输出的功率放大器电路(8),直流 到达 逆变器(10)和具有初级绕组(14,16)的初级绕组(14)的变压器装置(12)连接到用于接收功率放大器电路(8)的输出的功率放大器电路(8) 并且次级绕组(16)连接到dc 到达 逆变器(10)和波形发生器装置(6)和直流 到达 逆变器(10)并联连接,使得在点火装置(2)的运行期间,高压交流电。 从波形发生器装置(6)携带和维持直流 这是从d.c. 到达 逆变器(10),这是等离子体所必需的。