Air-fuel ratio detecting apparatus
    31.
    发明授权
    Air-fuel ratio detecting apparatus 失效
    空燃比检测装置

    公开(公告)号:US4119512A

    公开(公告)日:1978-10-10

    申请号:US756286

    申请日:1977-01-03

    CPC分类号: G01N27/4075

    摘要: An electrode structure for air-fuel ratio detecting, including a grate-like or perforated metal plate coated with a layer of alumina which is coated with a layer of platinum which is in electrical contact with a solid electrolyte which is formed for contacting both exhaust gases and the ambient atmosphere, so that when the platinum is exposed to engine exhaust gases catalytic action of the platinum lowers the oxygen partial pressure at the electrolyte surface to its equilibrium concentration causing an abrupt change in electromotive force detectible between a positive electrode in electrical contact with the solid electrolyte, and the grate electrode.

    摘要翻译: 一种用于空燃比检测的电极结构,包括涂覆有氧化铝层的格栅状或穿孔的金属板,其涂覆有与固体电解质电接触的铂层,其形成为用于接触两种废气 以及当铂暴露于发动机废气时,铂的催化作用将电解液表面的氧分压降低到其平衡浓度,导致在与电接触的正极之间可检测到的电动势的突然变化 固体电解质和格栅电极。

    Engine control system
    33.
    发明授权
    Engine control system 失效
    发动机控制系统

    公开(公告)号:US4942860A

    公开(公告)日:1990-07-24

    申请号:US151422

    申请日:1988-02-02

    IPC分类号: F02D35/00 F02D41/00 F02D41/14

    摘要: An engine control system having an oxygen density sensor arranged in an intake system at a position downstream of a throttle valve for detecting the amount of air newly introduced into the engine. The sensor is a limit electric current detection type capable of detecting a continuously changing density of the oxygen. An amount of fuel to be injected is calculated in accordance with the output level of the sensor by using mapped data of the output level of the sensor signal. A precise detection of new air is made possible while maintaining the advantages of the known D-J system. An ignition timing also may be calculated by the signal from the oxygen sensor.

    摘要翻译: 一种具有氧气密度传感器的发动机控制系统,其布置在进气系统中的节气门下游的位置处,用于检测新引入发动机的空气量。 该传感器是能够检测氧的浓度连续变化的极限电流检测型。 通过使用传感器信号的输出电平的映射数据,根据传感器的输出电平来计算要喷射的燃料量。 可以精确地检测新的空气,同时保持已知的D-J系统的优点。 也可以通过来自氧传感器的信号来计算点火正时。

    Engine control system
    35.
    发明授权
    Engine control system 失效
    发动机控制系统

    公开(公告)号:US4836174A

    公开(公告)日:1989-06-06

    申请号:US151576

    申请日:1988-02-02

    IPC分类号: F02D41/14 F02D41/24

    摘要: An engine control system having an oxygen density sensor arranged in an intake system at a position downstream of a throttle valve for detecting the amount of air newly introduced into the engine. The sensor is a limit electric current detection type capable of detecting a continuously changing density of oxygen. An amount of fuel to be injected is calculated in accordance with the output level of the sensor by using mapped data of the output level of the sensor signal. The sensitivity of the sensor is detected and multiplied by the output value of the sensor for obtaining a precise oxygen partial pressure. Instead of calculating the basic fuel amount from the output level of the oxygen density sensor, a normal intake pressure sensor with an intake pressure-engine speed map can be employed. In the latter case, the oxygen partial pressure from the oxygen density sensor is used for correcting the calculated basic fuel amount. The sensitivity of the sensor is also corrected.

    摘要翻译: 一种具有氧气密度传感器的发动机控制系统,其布置在进气系统中的节气门下游的位置处,用于检测新引入发动机的空气量。 该传感器是能够检测氧气的连续变化的密度的极限电流检测型。 通过使用传感器信号的输出电平的映射数据,根据传感器的输出电平来计算要喷射的燃料量。 检测传感器的灵敏度并乘以传感器的输出值,以获得精确的氧分压。 可以采用具有进气压力 - 发动机转速图的正常进气压力传感器代替从氧浓度传感器的输出水平计算基本燃料量。 在后一种情况下,来自氧浓度传感器的氧分压用于校正计算出的基本燃料量。 传感器的灵敏度也得到了修正。

    Helically-shaped intake port of an internal-combustion engine
    36.
    发明授权
    Helically-shaped intake port of an internal-combustion engine 失效
    内燃机的螺旋形进气口

    公开(公告)号:US4503819A

    公开(公告)日:1985-03-12

    申请号:US495589

    申请日:1983-05-18

    摘要: An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion and the helical portion. The separating wall has an upstream end portion centrally located between the opposed side walls of the intake port. A rotary valve is arranged in the bypass passage and is actuated by a vacuum-operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of the engine is increased beyond a predetermined value.

    摘要翻译: 一种发动机,其特征在于,具有从所述进气口的上壁向下突出的分隔壁的进气口。 分隔壁限定螺旋部分,与螺旋部分切向连接的入口通道部分和将入口通道部分和螺旋部分相互连接的旁路通道。 分离壁具有中心位于进气口的相对侧壁之间的上游端部分。 旋转阀设置在旁通通道中并由真空操作的隔膜装置致动。 当进入发动机气缸的空气量增加超过预定值时,旋转阀打开。

    Helically-shaped intake port of an internal-combustion engine
    37.
    发明授权
    Helically-shaped intake port of an internal-combustion engine 失效
    内燃机的螺旋形进气口

    公开(公告)号:US4485775A

    公开(公告)日:1984-12-04

    申请号:US495591

    申请日:1983-05-18

    摘要: An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion and the helical portion. The separating wall extends to near the side wall of the helical portion and defines a narrow passage portion therebetween. The width of the upper wall of the inlet passage portion is gradually reduced towards the narrow passage portion. A rotary valve is arranged in the bypass passage and is actuated by a vacuum-operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of the engine is increased beyond a predetermined value.

    摘要翻译: 一种发动机,其特征在于,具有从所述进气口的上壁向下突出的分隔壁的进气口。 分隔壁限定螺旋部分,与螺旋部分切向连接的入口通道部分和将入口通道部分和螺旋部分相互连接的旁路通道。 分隔壁延伸到靠近螺旋部分的侧壁并且在其间限定狭窄的通道部分。 入口通道部分的上壁的宽度朝向窄通道部分逐渐减小。 旋转阀设置在旁通通道中并由真空操作的隔膜装置致动。 当进入发动机气缸的空气量增加超过预定值时,旋转阀打开。

    Flow control device of a helically-shaped intake port
    39.
    发明授权
    Flow control device of a helically-shaped intake port 失效
    螺旋形进气口的流量控制装置

    公开(公告)号:US4466398A

    公开(公告)日:1984-08-21

    申请号:US400358

    申请日:1982-07-21

    摘要: A helically-shaped intake port comprising a helical portion formed around an intake valve, and a substantially straight inlet passage portion tangentially connected to the helical portion. A bypass passage is branched off from the inlet passage portion and connected to the helical portion. A slide valve is arranged in the bypass passage and controlled by an electronic control unit so that the opening area of the slide valve is proportional to the amount of air fed into the cylinder of the engine.

    摘要翻译: 螺旋状进气口包括围绕进气阀形成的螺旋部分和与螺旋部切向连接的基本上直的入口通道部分。 旁通通道从入口通道部分分出并连接到螺旋部分。 旁通通道中设置有滑阀,由电子控制单元控制,使滑阀的开口面积与送入发动机气缸的空气量成比例。

    Intake system for an internal combustion engine
    40.
    发明授权
    Intake system for an internal combustion engine 失效
    内燃机进气系统

    公开(公告)号:US4411226A

    公开(公告)日:1983-10-25

    申请号:US292886

    申请日:1981-08-14

    IPC分类号: F02B31/00 F02B31/08 F01L3/06

    摘要: A helical type intake port for an internal combustion engine. The system has a first sub-intake passageway and a second sub-intake passageway. The first sub-intake passageway is connected to a helical end of the intake passageway for generating a flow of air for suppression of the swirl effect in the helical end. The second sub-intake passageway is connected to a portion of the helical port located upstream of the helical end portion, for increasing the speed of flow of air directed to the helical end portion.

    摘要翻译: 一种用于内燃机的螺旋型进气口。 该系统具有第一副进气通道和第二副进气通道。 第一子进气通道连接到进气通道的螺旋端,用于产生用于抑制螺旋端中的涡流效应的空气流。 第二子进气通道连接到位于螺旋端部上游的螺旋口的一部分,用于增加引导到螺旋端部的空气的流动速度。