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    • 6. 发明授权
    • Spark timing control system for internal combustion engine
    • 内燃机火花定时控制系统
    • US4376428A
    • 1983-03-15
    • US123568
    • 1980-02-22
    • Yoshitaka HataGiichi Shioyama
    • Yoshitaka HataGiichi Shioyama
    • F02P3/045F02P5/15F02P5/04
    • F02P5/1502F02P3/0456F02P5/1504F02P5/1506F02P5/1514Y02T10/46Y10T477/68
    • The occurrence times of discharges of a multi-cylinder internal combustion engine of an automotive vehicle having a transmission and sources for deriving signals indicative of: (a) the engine being cranked or operating normally, (b) the transmission being in high or low gear, (c) engine speed, and (d) the values of parameters determining engine load are controlled by a computer responsive to the signals. The computer includes a read only memory having tables for storing signals with values indicative of spark advance and dwell angle as functions of engine load and engine speed for the engine being cranked, operating normally, the transmission being in high and low gear. The computer responds to the signals of the sources for selecting from the tables stored signals having values indicative of spark advance and dwell angle corresponding with the conditions indicated by signals (a), (b), (c) and (d). A spark control circuit responds to the signals having values indicative of spark advance and dwell angle to control the occurrence times of sparking for each cylinder of the engine. The same type of computer is susceptible to use for vehicles having different spark advance and dwell angle characteristics as functions of engine speed and engine load. The tables are for plural vehicle types having the different characteristics. Switches selectively enable signals of the tables associated with only one of the vehicle types to be coupled to the computer.
    • 具有变速器的机动车辆的多气缸内燃机的排放的发生次数和用于导出以下信号的源的源的发生次数:(a)发动机正在起动或正常运行,(b)变速器处于高档或低档 ,(c)发动机转速,(d)确定发动机负荷的参数值由响应于该信号的计算机控制。 计算机包括一个只读存储器,其具有用于存储具有表示火花提前和停留角度的值的信号的表,作为发动机正在起动的发动机负载和发动机转速的函数,正常运行,变速器处于高档和低档。 计算机响应源的信号,从表中选择存储的信号,该信号具有指示与由信号(a),(b),(c)和(d)表示的条件相对应的火花提前和驻留角的值。 火花控制电路响应具有指示火花提前和停留角度的值的信号,以控制发动机的每个气缸的火花发生时间。 相同类型的计算机易于用于具有不同的火花提前和停留角度特性的车辆作为发动机转速和发动机负载的功能。 这些表适用于具有不同特征的多种车型。 开关选择性地启用与仅一种车辆类型相关联的表与要连接到计算机的信号。
    • 7. 发明授权
    • Variable venturi carburetor
    • 可变文丘里化油器
    • US4489014A
    • 1984-12-18
    • US540627
    • 1983-10-11
    • Tadashi NagaiEiichi OhnishiGiichi ShioyamaYutaka Matayoshi
    • Tadashi NagaiEiichi OhnishiGiichi ShioyamaYutaka Matayoshi
    • F02M7/17F02M9/06
    • F02M7/17
    • In a prior-art variable venturi carburetor in which the cross-sectional area of venturi is automatically varied according to the amount of intake air to keep the flow rate of intake air or the vacuum generated at the venturi at a constant level, since the cross section of venturi changes rectangularly, fuel is concentratedly jetted only near the middle portion of the venturi, so that fuel is not uniformly mixed with air passing through the venturi. To overcome these drawbacks, a wall having a reverse trapezoidal recess is provided near the nozzle and further a pair of triangular slots or cutouts are formed near the lower end surface of the suction piston obliquely and symmetrically so as to slidably engage with the wall, with the result that the cross section of the venturi changes trapezoidally and therefore a stable mixture is obtained even when the engine is running at a low speed or being idled.
    • 在现有技术的可变文丘里化油器中,文丘里管的横截面积根据进气量而自动变化,以将进气的流量或文丘里管上产生的真空保持在恒定水平,因为十字 文氏管的一部分长方形变化,燃料集中喷射在文丘里管的中部附近,使得燃料与通过文丘里管的空气不均匀混合。 为了克服这些缺点,在喷嘴附近设置具有倒梯形凹部的壁,并且在抽吸活塞的下端面附近形成一对三角形槽或切口,倾斜和对称地形成为与壁壁可滑动地接合, 即使在发动机以低速行驶或空转的情况下,文丘里管的横截面也能够梯形变化,因此得到稳定的混合物。
    • 8. 发明授权
    • Method of and apparatus for controlling air/fuel ratio in internal
combustion engine
    • 内燃机空燃比控制方法及装置
    • US4107920A
    • 1978-08-22
    • US631313
    • 1975-11-12
    • Hidehiro MinamiKenji IkeuraGiichi Shioyama
    • Hidehiro MinamiKenji IkeuraGiichi Shioyama
    • F01N3/30F02D35/00F02D41/14F02B75/10
    • F01N3/30F02D35/0061F02D41/1454F02D41/1489Y02T10/20
    • A method of and apparatus for controlling the air-to-fuel ratio of a combustible mixture in an internal combustion engine of the particular type using mixture control means arranged to regulate the air-to-fuel mixture within a predetermined relatively high range for the purpose of enabling an exhaust cleaning catalytic reactor to perform its maximum function, characterized in that the air-to-fuel ratio is reduced, viz., the mixture is enriched during highly loaded operational conditions of the engine by supplying additional fuel to the mixture supply system of the engine, temporarily disabling the mixture control means during such conditions or diluting the exhaust gases during high load conditions of the engine so that the control means is caused to operate in such a manner as to compensate for the reduced concentration of air in the exhaust gases.
    • 使用混合控制装置来控制特定类型的内燃机中的可燃混合物的空燃比的方法和装置,该混合物控制装置被布置成在预定的相对较高的范围内将空气燃料混合物调节到该目的 使废气净化催化反应器能够发挥其最大功能,其特征在于,降低空气 - 燃料比,即,通过向混合物供应系统供应额外的燃料,在发动机的高负载运行条件下,混合物被富集 在发动机的高负载条件期间暂时禁用混合物控制装置,或者在发动机的高负载条件下稀释废气,使得控制装置以补偿排气中的空气浓度降低的方式运行 气体。
    • 10. 发明授权
    • Ignition timing control change-over system
    • 点火定时控制切换系统
    • US4144853A
    • 1979-03-20
    • US736774
    • 1976-10-28
    • Hiroyuki MaruokaGiichi Shioyama
    • Hiroyuki MaruokaGiichi Shioyama
    • F02P5/10F02P5/155F02P5/04
    • F02P5/103F02P5/1556Y02T10/46
    • An ignition timing control change-over system for an automotive internal combustion engine which has a spark retarding point in addition to a normal or spark advancing point. The system employs a change-over type relay switch for selectively and independently connecting either the spark advancing or the retarding point to the ignition coil in response to particular operating conditions of the engine. Under certain idling conditions of the engine, the spark retarding point of the distributor is connected to the ignition coil, and at the same time the throttle valve of the engine is opened by a throttle opener for temporarily increasing the engine speed to attain prompt warm-up of the engine and also of the exhaust gases. Unburned hydrocarbons and carbon monoxide contained in the exhaust may be reduced by a considerable degree as a result of this retarded control of the ignition timing under certain idling conditions of the engine.
    • 一种用于汽车内燃机的点火正时控制切换系统,除了正常或火花提前点之外,还具有火花缓慢点。 该系统采用转换型继电器开关,用于响应于发动机的特定操作条件选择性地和独立地将火花提前点或延迟点连接到点火线圈。 在发动机的某些怠速状态下,分配器的火花缓慢点与点火线圈连接,同时通过开阀器打开发动机的节流阀,暂时提高发动机转速, 发动机以及废气。 排气中含有的未燃碳氢化合物和一氧化碳可能在相当程度上由于在发动机的某些怠速条件下的点火正时的这种延迟控制而减少。