Helically-shaped intake port of an internal-combustion engine
    11.
    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。

    Fuel injection type internal combustion engine
    12.
    发明授权
    Fuel injection type internal combustion engine 失效
    燃油喷射型内燃机

    公开(公告)号:US4350125A

    公开(公告)日:1982-09-21

    申请号:US182607

    申请日:1980-08-29

    摘要: A fuel injection type internal combustion engine comprising a cylinder head having a flat inner wall, and a piston having a flat top face. The flat inner wall and the flat top face form a squish area therebetween. A recess having a lung shaped cross-section is formed in the cylinder head. A shallow groove is formed on the flat inner wall of the cylinder head so as to extend from the intake valve to the recess. The exhaust valve is arranged on the bottom of the recess. A depression connected to the recess is formed on the shallow groove. The spark plug is arranged in the depression. The cylinder head has a portion located between the recess and the intake passage. A fuel injector is arranged in the intake passage. The nozzle of the fuel injector is directed to an inner wall portion of the intake passage, which is located near the recess.

    摘要翻译: 一种燃料喷射型内燃机,包括具有平坦内壁的气缸盖和具有平坦顶面的活塞。 平坦的内壁和平坦的顶面在它们之间形成挤压区域。 具有肺形横截面的凹部形成在气缸盖中。 在气缸盖的平坦的内壁上形成浅槽,以便从进气阀延伸到凹部。 排气阀布置在凹槽的底部。 连接到凹部的凹陷形成在浅槽上。 火花塞布置在凹陷中。 气缸盖具有位于凹部和进气通道之间的部分。 燃料喷射器布置在进气通道中。 燃料喷射器的喷嘴被引导到位于凹部附近的进气通道的内壁部分。

    Piston with crown cooling cavity and radial ribs formed therein
    14.
    发明授权
    Piston with crown cooling cavity and radial ribs formed therein 失效
    具有冠状冷却腔和形成在其中的径向肋的活塞

    公开(公告)号:US4530312A

    公开(公告)日:1985-07-23

    申请号:US623934

    申请日:1984-06-25

    IPC分类号: F02F3/00 F02F3/22 F01P3/10

    CPC分类号: F02F3/22 F02F3/0076

    摘要: A piston for an internal combustion engine formed as an integrally cast article having a crown portion and a hollow cylindrical side wall portion, wherein the crown portion is formed with a transverse hollow space, radially outside portions of which are axially traversed by integrally formed ribs, the hollow space being adapted to be circulated by lubricant for the purpose of cooling the crown portion. To supply lubricant into and to drain lubricant from the hollow space, a transverse wall portion formed in the crown portion on the inner side of the hollow space is formed with a lubricant inlet opening and at least one lubricant outlet opening, preferably at portions located between the ribs.

    摘要翻译: 一种用于内燃机的活塞,其形成为具有冠状部分和中空圆柱形侧壁部分的整体铸造制品,其中所述冠形部分形成有横向中空空间,径向外侧部分由整体形成的肋轴向地横越, 中空空间适于通过润滑剂循环,以冷却冠部。 为了向中空空间供应润滑剂并从中空空间排出润滑剂,形成在中空空间内侧的冠部中的横向壁部分形成有润滑剂入口和至少一个润滑剂出口,优选地位于位于 肋骨。

    Method and apparatus for reducing NOx in internal combustion engine
    15.
    发明授权
    Method and apparatus for reducing NOx in internal combustion engine 失效
    用于减少内燃机NOx的方法和装置

    公开(公告)号:US4682577A

    公开(公告)日:1987-07-28

    申请号:US696172

    申请日:1985-01-29

    CPC分类号: F02D41/10

    摘要: A method of reducing the amount of nitrogen oxides (NOx) in an internal combustion engine in which the air/fuel ratio is controlled higher than a theoreticl air/fuel ratio during normal operation of a vehicle, characterized in that the air/fuel ratio is controlled lower than the theoretical air-fuel ratio for a predetermined period of time during acceleration from the start of acceleration, the control being effected by means for detecting an accelerated state of the vehicle, means for measuring the lapse of time during acceleration from the start of acceleration and means for performing an acceleration increment correction upon detection of acceleration.

    摘要翻译: 一种在车辆的正常运行中将空气/燃料比控制为高于理论空燃比的内燃机中的氮氧化物(NOx)的量减少的方法,其特征在于,所述空燃比为 在从加速开始加速期间的预定时间段内控制低于理论空燃比,通过用于检测车辆的加速状态的装置进行控制,用于测量从起动开始加速期间的经过时间的装置 的加速度和用于在检测到加速度时执行加速度增量校正的装置。

    Helically shaped intake port of an internal-combustion engine
    17.
    发明授权
    Helically shaped intake port of an internal-combustion engine 失效
    螺旋形内燃机的进气口

    公开(公告)号:US4502432A

    公开(公告)日:1985-03-05

    申请号:US495596

    申请日:1983-05-18

    IPC分类号: F02B31/00 F02B1/04 F02F1/42

    CPC分类号: F02F1/4228 F02B1/04

    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 upper wall of the bypass passage is higher than that of the inlet 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。 旁路通道的上壁高于入口通道部分的上壁。 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。

    Device for controlling a flow in a helical type intake port
    18.
    发明授权
    Device for controlling a flow in a helical type intake port 失效
    用于控制螺旋型进气口中的流量的装置

    公开(公告)号:US4438741A

    公开(公告)日:1984-03-27

    申请号:US341911

    申请日:1982-01-22

    摘要: A helical type intake port is formed with the helical portion around an intake valve and the inlet portion tangentially contiguous to the helical portion.A bypass passage is provided in a cylinder head, which is branched off from the inlet portion and connected to an end portion of said helical portion. The flow in the bypass passage is controlled by a valve in response to the amount of air in the intake port so that a strong swirl flow with a slight flow resistance may be obtained at not only a low revolution and a low load, but also at a high revolution and a high load.

    摘要翻译: 螺旋型进气口形成有围绕进气阀的螺旋部分,并且入口部分切向地邻接螺旋部分。 旁通通道设置在气缸盖中,该气缸盖从入口部分分出并连接到所述螺旋部分的端部。 旁路通道中的流量响应于进气口中的空气量由阀控制,使得不仅在低转速和低负载下可以获得具有轻微流动阻力的强涡旋流,而且在 高转,高负荷。