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公开(公告)号：US4944266A
公开(公告)日：1990-07-31
申请号：US310293
申请日：1989-02-13
CPC分类号： F02B31/085 , F02F1/4228 , F02B2031/006 , F02B2275/14 , F02B3/06 , Y02T10/123 , Y02T10/146
摘要： A direct-injection diesel engine comprising a cylinder block having a cylinder in which a piston is slidably received, a cylinder head connected to an upper surface of the cylinder block, a fuel injector nozzle mounted on the cylinder head to directly inject fuel into a combustion chamber defined between the piston and the cylinder head, and first and second independent intake ports provided in the cylinder head for introducing intake gas into the combustion chamber. An intake controller is mounted in the second intake port for bringing the second intake port into a controlled intake gas flow state in a region of low speed operation of the engine and into a normal state in a region of high speed operation of the engine. Each of the first and second intake ports are formed helically in the same direction to produce swirls in the same direction in intake gases introduced respectively through the intake ports into the combustion chamber.
摘要翻译： 一种直喷式柴油发动机，其特征在于，具备：气缸体，其具有可滑动地容纳活塞的气缸;连接于气缸体上表面的气缸盖;安装在气缸盖上的燃料喷射嘴，将燃料直接喷入燃烧 限定在活塞和气缸盖之间的腔室，以及设置在气缸盖中的第一和第二独立进气口，用于将进气引入燃烧室。 进气控制器安装在第二进气口中，用于使发动机的低速运转区域内的第二进气口处于受控进气流动状态，并且在发动机的高速运转区域内进入正常状态。 第一和第二进气口中的每一个在相同方向上螺旋形成，以在分别通过进入端口进入燃烧室的进气中沿相同方向产生涡流。
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公开(公告)号：US4572141A
公开(公告)日：1986-02-25
申请号：US684688
申请日：1984-12-21
CPC分类号： F02D31/005 , F02D41/061 , F02M23/04 , F02D2011/102 , Y02T10/146
摘要： A method of controlling the quantity of supplementary air being supplied to an internal combustion engine having first and second control valves arranged, respectively, in first and second auxiliary air passages bypassing the throttle valve for on-off control of the opening areas of the respective auxiliary air passages. When the engine is operating in a particular operating condition, the first and second control valves are selectively actuated in response to the detected value of atmospheric pressure encompassing the engine in such a manner that the sum of the opening areas of the first and second auxiliary air passages increases as the detected value of the atmospheric pressure decreases. The engine is determined to be operating in the particular operating condition when it is in a cranking condition, when a predetermined period of time has not yet elapsed after the engine has got out of a cranking condition, or when the engine is in a warming-up condition. Preferably, the engine includes a third control valve arranged in a third auxiliary air passage bypassing the throttle valve, and adapted to increase the opening area of the third auxiliary air passage with a decrease in the engine temperature for controlling the supplementary air quantity to be supplied to the engine through the third auxiliary air passage to an appropriate value when the engine is operating in a warming-up condition at a predetermined reference atmospheric pressure.
摘要翻译： 一种控制供给内燃机的辅助空气量的方法，所述内燃机具有分别布置在绕过节流阀的第一辅助空气通道和第二辅助空气通道中的第一和第二控制阀，用于对各辅助件的开口区域进行开关控制 空气通道。 当发动机在特定操作状态下运行时，第一和第二控制阀响应于围绕发动机的大气压力的检测值被选择性地启动，使得第一和第二辅助空气的开口面积之和 随着大气压力的检测值降低，通道增加。 当发动机处于起动状态时，当发动机处于起动状态之后或者当发动机处于升温状态时还没有经过预定时间段时，发动机被确定为在特定操作条件下操作， up状态。 优选地，发动机包括配置在旁通节流阀的第三辅助空气通路中的第三控制阀，并且适于随着发动机温度的降低而增加第三辅助空气通道的开口面积，以控制要供应的辅助空气量 当发动机在预定参考大气压力的预热条件下操作时，通过第三辅助空气通道将发动机提供给适当的值。
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公开(公告)号：US4696224A
公开(公告)日：1987-09-29
申请号：US682420
申请日：1984-12-17
申请人： Yoshibumi Mishima
发明人： Yoshibumi Mishima
CPC分类号： F16J1/16 , F02F7/0087 , F05C2201/021 , F05C2201/0448 , F05C2251/042
摘要： An aluminum alloy piston for an internal combustion engine has two spaced piston pin bosses. A steel alloy bushing is fitted in each boss. A ceramic piston pin is fitted in said bushings.
摘要翻译： 用于内燃机的铝合金活塞具有两个间隔开的活塞销凸台。 每个凸台上都装有钢合金衬套。 陶瓷活塞销安装在所述衬套中。
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