Air-pollution preventive system for motor vehicles
    1.
    发明授权
    Air-pollution preventive system for motor vehicles 失效
    电动汽车空气污染预防系统

    公开(公告)号:US3675633A

    公开(公告)日:1972-07-11

    申请号:US3675633D

    申请日:1970-01-13

    Applicant: NISSAN MOTOR

    CPC classification number: F02D21/08 F02D2009/0276 F02M26/53 F02M26/64

    Abstract: An air-pollution preventive system for use with motor vehicle internal combustion engines for effectively reducing the concentration of nitrogen oxides in the exhaust gases emitted from the engines during the city-road driving of the motor vehicle comprises means for recirculating the exhaust gases from the exhaust manifold into the intake manifold only when the vacuum in the intake manifold is lower than a predetermined lever concurrently with the throttle valve of the carburetor being within a predetermined range of open positions. The means for recirculating the exhaust gases comprises a recirculating passage, a valve for opening and closing the passage, and a double-action cam which is both axially movable in response to intake manifold vacuum conditions and angularly displaced in response to movement of the throttle valve to open the valve.

    Abstract translation: 用于机动车辆内燃机的空气污染预防系统用于有效地降低在机动车辆的城市道路驾驶期间从发动机排出的废气中的氮氧化物的浓度包括用于使来自排气的废气再循环的装置 只有当进气歧管中的真空度低于预定的杆,化油器的节流阀处于预定的打开位置范围内时才会进入进气歧管。 用于再循环废气的装置包括循环通道,用于打开和关闭通道的阀,以及响应于进气歧管真空条件可轴向移动并响应于节流阀的运动而成角度位移的双作用凸轮 打开阀门。

    Exhaust gas after-burning system
    2.
    发明授权
    Exhaust gas after-burning system 失效
    排气后燃烧系统

    公开(公告)号:US3670496A

    公开(公告)日:1972-06-20

    申请号:US3670496D

    申请日:1970-07-27

    Applicant: NISSAN MOTOR

    CPC classification number: F01N3/18 Y02A50/2322

    Abstract: An exhaust gas after-burning system for reduction vehicular air pollution without sacrificing engine operating efficiency, which system includes a reactor adapted to function at predetermined operating conditions of the engine in response to variations in vehicle speed and intake manifold vacuum of the engine.

    Abstract translation: 一种用于减少车​​辆空气污染而不牺牲发动机工作效率的废气后燃烧系统,该系统包括适于在发动机的预定操作条件下响应于发动机的车速和进气歧管真空度的变化起作用的反应器。

    Valve timing system of automotive internal combustion engine
    3.
    发明授权
    Valve timing system of automotive internal combustion engine 失效
    汽车内燃机阀门定时系统

    公开(公告)号:US3633554A

    公开(公告)日:1972-01-11

    申请号:US3633554D

    申请日:1970-07-29

    Applicant: NISSAN MOTOR

    CPC classification number: F01L13/0036 F02F7/006

    Abstract: A valve timing system for an internal combustion engine of a motor vehicle, including a camshaft which is hydraulically axially movable and which has first and second cam lobes which are positioned and configured relative to the rocker arm for the exhaust valve of the engine cylinder, the first and second cam lobes being selectively aligned with the rocker arm so that the valve is timed in different manners depending upon the driving conditions of the motor vehicle. The hydraulic fluid for axially moving the camshaft is controlled by a solenoid operated discharge valve in response to an engine speed actuated switch and an intake manifold vacuum actuated switch. The valve timing system is adapted for the elimination of air pollution in urban areas without impairing the performance quality of the engine. Such cam lobe configurations may be applied to the cam lobes associated with the intake valve so that not only the exhaust valve but the intake valve can be timed in relation to the driving conditions of the motor vehicle.

    Air-pollution preventive system for motor vehicles
    4.
    发明授权
    Air-pollution preventive system for motor vehicles 失效
    电动汽车空气污染预防系统

    公开(公告)号:US3673993A

    公开(公告)日:1972-07-04

    申请号:US3673993D

    申请日:1970-01-19

    Applicant: NISSAN MOTOR

    Abstract: An air-pollution preventive system for use with an internal combustion engine of motor vehicles, which system is adapted to reduce the concentration of nitrogen oxides in the exhaust gases emitted from the engine during the city-road driving of the motor vehicle, wherein the exhaust gases are recirculated from the exhaust manifold into the intake manifold and cooled therein when, and only when, the vacuum in the intake manifold is lower than a predetermined level and concurrently the engine is driven at a speed within a predetermined range, such predetermined level and range being determined as corresponding to the vehicle speed at which the motor vehicle is accelerated or climbs up a hill as frequently experienced during city-road driving.

    Abstract translation: 一种与汽车内燃机一起使用的空气污染防止系统,该系统适于降低在汽车的城市道路驾驶期间从发动机排放的废气中的氮氧化物的浓度,其中排气 当且仅当进气歧管中的真空低于预定水平并且同时发动机以预定水平的速度驱动发动机时,气体从排气歧管再循环到进气歧管中并在其中冷却,并且 范围被确定为对应于机动车辆在城市道路驾驶期间经常加速或爬上山的车速。

    Vehicular air-pollution preventive system
    5.
    发明授权
    Vehicular air-pollution preventive system 失效
    机动车辆空气污染预防系统

    公开(公告)号:US3605709A

    公开(公告)日:1971-09-20

    申请号:US3605709D

    申请日:1970-03-11

    Applicant: NISSAN MOTOR

    CPC classification number: F02D21/08 F02M26/53 F02M26/57 Y10T477/817

    Abstract: A VEHICULAR AIR-POLLUTION PREVENTIVE SYSTEM FOR USE WITH AN INTERNAL COMBUSTION ENGINE, WHICH SYSTEM IS ADAPTED TO REDUCE THE QUANTITY OF NITROGEN OXIDES PRODUCED DURING ACCELERATION OR HILL-CLIMBING IN SUCH QUANTITIES AS TO CAUSE A SERIOUS AIR-POLLUTION PROBLEM ESPECIALLY WHEN THE VEHICLE IS DRIVE IN URBAN AREAS, HAVING TWO SWITCHES CLOSING WHEN THE VEHICLE IS DRIVEN AT A SPEED

    FALLING WITHIN A PREDETERMINED RANGE ANS WITH THE INTAKE MANIFOLD VACUUM LOWR THAN A PREDETERMINED LEVEL PROVIDING ACCELERATION OR HILL-CLIMBING AND AN EXHAUST RECICULATION CONTROL VALVE ASSEMBLY WHICH IS ADAPTED TO PASS THE EXHAUST GASES TO THE INTAKE MANIFOLD WHEN BOTH OF THE TWO SWITCHES ARE CLOSED CONCURRENTLY.

    Vehicular air-pollution preventive system
    6.
    发明授权
    Vehicular air-pollution preventive system 失效
    机动车辆空气污染预防系统

    公开(公告)号:US3636934A

    公开(公告)日:1972-01-25

    申请号:US3636934D

    申请日:1970-03-11

    Applicant: NISSAN MOTOR

    CPC classification number: F02D21/08 F02M26/35 F02M26/53

    Abstract: A vehicular air-pollution preventive system serious use with an internal combustion engine, which system is adapted to reduce the quantity of nitrogen oxides produced during acceleration or hillclimbing in such quantities as to cause a serious air-pollution problem especially when the vehicle is driven in urban areas, having switches closing when the vehicle is driven under predetermined conditions providing the acceleration or hillclimbing and a solenoid valve which is adapted to pass exhaust gases from the exhaust manifold to the intake manifold when the switches are closed concurrently. The conditions in which the switches are closed concurrently are represented by variables such as the combination of angular position of a carburetor throttle valve and engine speed or vehicle speed.

    Abstract translation: 一种与内燃机严重使用的车辆空气污染防治系统,该系统适用于减少加速或登山期间产生的氮氧化物的量,导致严重的空气污染问题,特别是当车辆为 在城市区域中驱动,当车辆在提供加速或爬坡的预定条件下被驱动时,开关关闭,以及当开关同时闭合时适于将废气从排气歧管传递到进气歧管的电磁阀。 开关同时关闭的条件由变量表示,例如化油器节流阀的角位置与发动机转速或车速的组合。

    Device for selective combustion in a multicylinder engine
    7.
    发明授权
    Device for selective combustion in a multicylinder engine 失效
    多功能发动机中选择性燃烧的装置

    公开(公告)号:US3578116A

    公开(公告)日:1971-05-11

    申请号:US3578116D

    申请日:1968-11-13

    Applicant: NISSAN MOTOR

    CPC classification number: F02D17/04 F02B1/04 F02M3/04 Y10T477/6433

    Abstract: A device for saving fuel and cleansing exhaust gas in a multicylinder automobile engine, by interrupting fuel supply to selected cylinders of the engine during deceleration and coasting of the automobile. The device comprises valves mounted in the selected cylinders of the engine, a pressure-sensing means to sense the negative pressure at the intake manifold of the engine, and a connecting means to operatively connect said pressuresensing means to said valves. The valves are closed by the pressure-sensing means when the negative pressure at the engine intake manifold exceeds a certain predetermined level due to deceleration or slow running of the automobile.

    Air pollution preventive system for motor vehicles
    8.
    发明授权
    Air pollution preventive system for motor vehicles 失效
    电动汽车空气污染预防系统

    公开(公告)号:US3646764A

    公开(公告)日:1972-03-07

    申请号:US3646764D

    申请日:1970-04-27

    Applicant: NISSAN MOTOR

    CPC classification number: F02D21/08 F02M26/53

    Abstract: A vehicular air pollution preventive system with a unit or units constructed to reduce the quantity of nitrogen oxides and/or hydrocarbons under the control of means responsive to the engine temperature, and either one of the intake manifold vacuum, vehicle or engine speed, or a combination of any of these, which system includes control means responsive to a relatively cool temperature of the engine to deactuate the unit for reducing the quantity of nitrogen oxides in the exhaust gases and to actuate the unit for reducing hydrocarbons, and responsive to a relatively hot temperature of said engine to actuate the unit for reducing the quantity of nitrogen oxides and to deactuate the unit for reducing hydrocarbons.

    Abstract translation: 一种车辆空气污染预防系统,其具有单元或单元,该单元或单元被构造成在受发动机温度响应的装置控制下减少氮氧化物和/或碳氢化合物的量,以及进气歧管真空,车辆或发动机速度之一,或 任何这些的组合,该系统包括响应于发动机的相对较冷的温度的控制装置,以停用该单元以减少排气中的氮氧化物的量并且致动该单元以减少碳氢化合物,并响应于相对较热 所述发动机的温度来驱动所述单元以减少氮氧化物的量并且使所述单元停用以还原碳氢化合物。

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