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    • 2. 发明申请
    • Control system and method, and control unit
    • 控制系统及方法及控制单元
    • US20040158387A1
    • 2004-08-12
    • US10727056
    • 2003-12-04
    • Yuji YasuiOsamu TakizawaTakahide Mizuno
    • F02M025/07F02D041/14
    • F02D41/1402F02D41/008F02D41/1456F02D41/1458F02D41/182F02D41/2454F02D41/2477F02D2041/1416F02D2041/1418F02D2041/1423F02D2041/1433F02D2041/1437F02D2200/0402
    • There is provided a control system capable of realizing a highly robust control having a large margin of stability. The ECU of the control system controls the air-fuel ratio of exhaust gases emitted from the first to fourth cylinders. The ECU 2 estimates an estimation value of a detected air-fuel ratio, from a model defining a relation between the estimation value and a plurality of simulation values, and identifies an intake air amount variation coefficient such the estimation value becomes equal to a detected air-fuel ratio. The ECU calculates an air-fuel ratio variation correction coefficient according to the identified air-fuel ratio variation coefficient, on a cylinder-by-cylinder basis, and a learned correction value of the air-fuel ratio variation correction coefficient, on a cylinder-by-cylinder basis, and corrects a basic fuel injection amount by the air-fuel ratio variation correction coefficient and the learned correction value, on a cylinder-by-cylinder basis, to thereby calculate a final fuel injection amount.
    • 提供了一种能够实现具有大的稳定裕度的高度鲁棒的控制的控制系统。 控制系统的ECU控制从第一至第四气缸排放的废气的空燃比。 ECU2根据定义了估计值和多个模拟值之间的关系的模型来估计检测到的空燃比的估计值,并且识别出该估计值等于检测到的空气的进气量变化系数 - 燃料比。 ECU根据所识别的空燃比变动系数,在逐缸的基础上计算空燃比变动校正系数和空燃比变动校正系数的学习校正值, 并且通过空燃比变化校正系数和学习校正值在逐个气缸的基础上校正基本燃料喷射量,从而计算最终燃料喷射量。
    • 5. 发明申请
    • Two-stroke internal combustion engine with internal scavenging
    • 具有内部清扫功能的二冲程内燃机
    • US20040103863A1
    • 2004-06-03
    • US10465814
    • 2003-06-20
    • Andrei LuduGerhard Regner
    • F02M025/07
    • F02D13/0276F02B25/04F02M26/20F02M26/41Y02T10/18
    • The invention relates to a two-stroke internal combustion engine with longitudinal scavenging, with at least one piston reciprocating in a cylinder, with at least one exhaust valve disposed in the cylinder head floor and with at least one intake slot per cylinder which can be passed by a control edge of the piston, with at least one exhaust gas recirculation conduit for the recirculation of exhaust gas into the combustion chamber and at least one exhaust gas recirculation valve for controlling the recirculated exhaust gas quantity. In order to enable exhaust gas recirculation in the simplest possible way, it is provided that the exhaust gas recirculation conduit starts out directly from the combustion chamber and the exhaust gas recirculation valve is arranged as a stroke valve which is disposed in the region of the entrance of the exhaust gas recirculation conduit into the cylinder head floor.
    • 本发明涉及一种具有纵向清扫功能的二冲程内燃机,其中至少一个活塞在气缸中往复运动,其中至少一个排气阀设置在气缸盖底板中,每个气缸至少有一个进气口可以通过 通过活塞的控制边缘具有至少一个排气再循环管道,用于将废气再循环到燃烧室中,以及至少一个废气再循环阀,用于控制再循环废气量。 为了以最简单可能的方式实现排气再循环,提供了排气再循环管道直接从燃烧室开始,排气再循环阀被设置为行程阀,其设置在入口的区域 的废气再循环管道进入气缸盖底板。
    • 6. 发明申请
    • Arragement for mixing a first and a second gas flow
    • 用于混合第一和第二气流的管理
    • US20040099257A1
    • 2004-05-27
    • US10363350
    • 2003-07-07
    • Gustav BerggrenFredrik JanssonFredrik WestinHans-Erik Angstrnullm
    • F02M025/07
    • F02D9/12F02M26/19Y10T137/3367Y10T137/87619
    • An arrangement for mixing a first and a second gas flow, for example, an inlet flow with a exhaust gas return flow in a diesel engine, comprising a line (16) for the first flow, an inlet (7) for the second flow in the line (16), in order to achieve the mixing; a streamlined body (8) arranged to be displaced in the longitudinal direction of the line (16) at the inlet (7) in order to achieve a variable venturi effect and in this way a variable suction effect and mixture of the mixed flow; and actuating means for displacing the body forwards and backwards in the line. In order to minimise the need for throttling and the accompanying pressure losses, the streamlined body (8) and the supply part (2) are designed to achieve maximal throttling in the line (16) close to the inlet (7), independently of the position of the body.
    • 用于混合第一和第二气流的装置,例如在柴油发动机中具有排气返回流的入口流,包括用于第一流的管线(16),用于第二流中的第二流的入口(7) 线(16),以实现混合; 流线型主体(8)被布置成在入口(7)处沿着管线(16)的纵向方向移位,以便实现可变的文氏管效应,并且以这种方式具有可变的抽吸效果和混合流的混合; 以及用于使身体向前和向后移动的致动装置。 为了最小化对节流的需要和伴随的压力损失,流线型主体(8)和供应部分(2)被设计成在靠近入口(7)的线(16)中实现最大节流,而与 身体的位置
    • 7. 发明申请
    • Fixed shaft moisture intrusion shield for a valve pintle
    • 固定轴湿度入侵防护罩用于阀栓
    • US20040065861A1
    • 2004-04-08
    • US10641831
    • 2003-08-15
    • Raul A. Bircann
    • F02M025/07
    • F02M26/74F02M26/50F02M26/53F02M26/67
    • A solenoid-actuated pintle valve assembly having a pintle shaft extending from a metering base sub-assembly into a solenoid actuator sub-assembly, the pintle shaft being equipped with a radially-extending fixed shield outside the metering base sub-assembly. The shield moves axially with the pintle during valve actuation and is located on the shaft so that when the pintle is in the valve-closed position, the shield cooperates with the pintle bushing to form an effective impedance to gas leakage from the metering base sub-assembly along the pintle shaft. When the valve is in the fully open position at the opposite extreme of pintle travel, the shield cooperates with an armature shield in the actuator to prevent entrance of gases into the solenoid. The invention is especially useful for exhaust gas recirculation valves on internal combustion engines.
    • 一种电磁致动枢栓阀组件,其具有从计量基座子组件延伸到螺线管致动器子组件中的枢轴,所述枢转轴在计量基座子组件外部配备有径向延伸的固定屏蔽。 屏蔽件在阀门致动期间与枢轴轴向移动并且位于轴上,使得当枢栓处于阀关闭位置时,屏蔽件与枢轴套管协作以形成有效的阻抗, 沿枢轴的装配。 当阀在枢轴行进的相反极点处于完全打开位置时,屏蔽件与致动器中的电枢屏蔽配合以防止气体进入螺线管。 本发明对于内燃机上的废气再循环阀特别有用。