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    • 2. 发明授权
    • Exhaust gas recirculation control system for internal combustion engine
    • 内燃机排气再循环控制系统
    • US4231340A
    • 1980-11-04
    • US50451
    • 1979-06-20
    • Torazo NishimiyaMasamitsu OkumuraTomo ItoSeisaku Numakura
    • Torazo NishimiyaMasamitsu OkumuraTomo ItoSeisaku Numakura
    • F02M25/07F16K31/06H01F7/16F02M25/06
    • F02M26/57F02M2200/502
    • An exhaust gas recirculation control system for controlling the amount of exhaust gas subjected to recirculation to the air inlet depending on the amount of inlet air of an internal combustion engine. This system comprises a control valve disposed in an exhaust gas recirculation passage, for controlling the amount of exhaust gas recirculation, an orifice disposed in the recirculation passage, for creating a negative pressure upstream of the control valve, and a solenoid valve for generating a pressure which controls the control valve. The solenoid valve comprises a core formed therein with a hollow passage opened at one end to a valve portion, a plunger made of a magnetic material and having a valve seat opposing the open end to define the valve portion, a spring biasing the plunger in the opening direction of the valve portion, a first exciting coil generating, when passing therethrough a current proportional to the amount of inlet air, a force acting on the plunger to close the valve portion, and a second exciting coil generating, when passing therethrough a current in inverse proportion to the pressure downstream of the orifice, a force opposite to the force on the plunger due to the first exciting coil.
    • 一种废气再循环控制系统,用于根据内燃机的入口空气量来控制经由进气口再循环的废气量。 该系统包括设置在废气再循环通道中的控制阀,用于控制废气再循环量,设置在再循环通道中的孔,用于在控制阀的上游产生负压;以及电磁阀,用于产生压力 其控制控制阀。 电磁阀包括形成在其中的芯部,其一端与阀部分开口的中空通道,由磁性材料制成并具有与开口端相对以限定阀部分的阀座的柱塞, 所述第一激励线圈当通过与所述入口空气量成比例的电流时产生作用在所述柱塞上以关闭所述阀部分的力;以及第二励磁线圈,当通过所述第二激励线圈时, 与孔的下游压力成反比,由于第一激励线圈而产生与柱塞上的力相反的力。
    • 4. 发明授权
    • Idle speed control device
    • 空转速度控制装置
    • US4617889A
    • 1986-10-21
    • US721767
    • 1985-04-10
    • Torazo NishimiyaTomoo ItoTakashi Iseyama
    • Torazo NishimiyaTomoo ItoTakashi Iseyama
    • F02D31/00F02M3/06F02M69/32F02M3/00
    • F02M69/32F02D31/005F02M3/06F02D2011/102
    • An idle speed control device has an electromagnetic driving portion and a flow rate controlling portion disposed in a bypass passage formed in a throttle chamber such as to bypass a throttle valve. The flow rate controlling portion has a body defining a passage for the fluid to be controlled, a seal formed in an intermediate portion of the passage, a first valve driven by the plunger of the electromagnetic driving portion through a rod such as to be brought into and out of contact with the seat, a sleeve disposed in the body, and a second valve connected through a rod to the downstream side of the first valve such as to produce a vacuum force which acts in the opposite direction to the vacuum force produced on the first valve thereby to absorb any fluctuation in the intake pressure in cooperation with the first valve, the second valve being loosely received by the sleeve. According to this arrangement, it is possible to eliminate any unfavorable effect of the fluctuation in the intake vacuum on the actual air flow rate. In addition, since the flow from the vacuum compensating portion is minimized, the vacuum compensation is made possible without incurring any increase in the initial leak.
    • 怠速控制装置具有电磁驱动部和流量控制部,该流量控制部设置在形成在节流室中的旁路通路中,以绕过节流阀。 流量控制部分具有限定用于待控制流体的通道的主体,形成在通道的中间部分中的密封件,由电磁驱动部分的柱塞通过杆驱动的第一阀, 并且与座椅脱离接触,设置在主体中的套筒和通过杆连接到第一阀门的下游侧的第二阀,以产生真空力,该真空力沿与在其上产生的真空力相反的方向作用 第一阀由此与第一阀一起吸收进气压力的任何波动,第二阀由套筒松动地接收。 根据该结构,可以消除吸入真空度的波动对实际空气流量的不利影响。 此外,由于来自真空补偿部的流量最小化,所以能够进行真空补偿而不引起初始泄漏的任何增加。
    • 6. 发明授权
    • Air-fuel ratio control apparatus
    • 空燃比控制装置
    • US4132199A
    • 1979-01-02
    • US814623
    • 1977-07-11
    • Hiroshi KuroiwaYutaka NishimuraYoshishige OhyamaTorazo Nishimiya
    • Hiroshi KuroiwaYutaka NishimuraYoshishige OhyamaTorazo Nishimiya
    • F02B1/04F02D41/14F02M7/24F02B33/00
    • F02D41/1489F02M7/24F02B1/04Y10S261/74
    • An air-fuel ratio control apparatus for use in a motor vehicle having an internal combustion engine provided with a carburetor including a main fuel supply system and a low speed fuel supply system for supplying fuel to the engine. The apparatus includes an electromagnetic valve for controlling the volume of air flowing through the air bleed of the main fuel supply system, an electromagnetic valve for controlling the volume of air flowing through the air bleed of the low speed fuel supply system, an O.sub.2 sensor for detecting the concentration of O.sub.2 in exhaust emissions, and a control circuit for producing as an output a control signal in accordance with a signal from the O.sub.2 sensor. The two electromagnetic valves are controlled by the same signal from the control circuit. A plurality of microswitches for detecting the starting of the engine, high speed operation of the engine and power operation of the engine respectively are provides so as to disconnect the control circuit from the electromagnetic valves.
    • 一种用于具有内燃机的机动车辆的空燃比控制装置,所述内燃机设置有包括主燃料供给系统和用于向发动机供给燃料的低速燃料供给系统的化油器。 该装置包括用于控制流过主燃料供应系统的排气的空气的体积的电磁阀,用于控制流过低速燃料供应系统的排气的空气的体积的电磁阀,用于 检测废气排放物中的O 2浓度;以及控制电路,用于根据来自O2传感器的信号输出控制信号。 两个电磁阀由来自控制电路的相同信号控制。 提供用于检测发动机起动,发动机的高速运转和发动机的动力运行的多个微型开关,以分离控制电路与电磁阀。
    • 9. 发明授权
    • Differential ignition timing firing control system
    • 点火点火定时点火控制系统
    • US3964454A
    • 1976-06-22
    • US481825
    • 1974-06-21
    • Torazo Nishimiya
    • Torazo Nishimiya
    • F02B1/04F02P5/155F02P15/02F02P3/02F02B75/10
    • F02P15/02F02P5/1551F02P5/1556F02B1/04Y02T10/46
    • A control system for controlling the ignition of fuel in an internal combustion engine with differential ignition timing comprising a first and a second ignition plug disposed in each combustion chamber of the engine, and a first and a second ignition system associated with the first and second ignition plugs respectively. A pulse delay circuit is provided in the second ignition system and the time constant thereof is varied depending on the operating condition of the engine for varying the rate of delay of the ignition timing of the second ignition plug in the second ignition system relative to the ignition timing of the first ignition plug in the first ignition system. This delay time is reduced in an operating range requiring a high engine output so that the demand for purificaton of exhaust gases and the demand for desired operating performance of the engine which are contradictory to each other can be satisfied.
    • 一种控制系统,用于控制具有差动点火正时的内燃机中的燃料点火,包括设置在发动机的每个燃烧室中的第一和第二火花塞,以及与第一和第二点火相关的第一和第二点火系统 插头。 在第二点火系统中提供脉冲延迟电路,并且其时间常数根据发动机的运行状态而变化,以改变第二点火系统中的第二火花塞点火正时相对于点火的延迟速率 第一点火系统中的第一火花塞的正时。 在需要高发动机输出的工作范围内,该延迟时间减少,从而能够满足彼此矛盾的对排气净化的需求和对发动机的期望的运行性能的要求。
    • 10. 发明授权
    • Ignition timing control system
    • 点火定时控制系统
    • US3935844A
    • 1976-02-03
    • US396311
    • 1973-09-11
    • Torazo NishimiyaYasunori Mori
    • Torazo NishimiyaYasunori Mori
    • F02P5/155F02P15/02F02P15/08F02P1/00
    • F02P15/02F02P15/08F02P5/1556Y02T10/46
    • A dilute air-fuel mixture operation as a method for purifying exhaust gas is effective for reducing simultaneously carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) contained in the engine exhaust. However, such operation reduces engine power remarkably. Though a reciprocating internal combustion engine having first and second spark plugs has been introduced to compensate this disadvantage, it has in turn brought about the problem that there is a tendency of increasing quantities of nitrogen oxides. While an increase of the interval between the firing of the two plugs may control an increase of nitrogen oxides, this results in a reduction of engine power. A most effective method of exhaust purification is to control an ignition system such that the interval between the firing of two plugs is made short only when high engine power is required, and the firing interval is made comparatively long in the normal operation of the engine.
    • 作为纯化废气的方法的稀空燃混合操作对于同时还原包含在发动机排气中的一氧化碳(CO),烃(HC)和氮氧化物(NOx))是有效的。 然而,这种操作显着地降低了发动机功率。 虽然已经引入了具有第一和第二火花塞的往复式内燃机来补偿这个缺点,但是它又带来了氮氧化物的量增加的趋势。 虽然两个塞子的点火间隔的增加可以控制氮氧化物的增加,但这导致发动机功率的降低。 排气净化的最有效的方法是控制点火系统,使得仅当需要高发动机功率时才使得两个塞子的点火间隔变短,并且在发动机的正常运行中使得点火间隔相对较长。