公开(公告)号：US4231331A

公开(公告)日：1980-11-04

申请号：US930033

申请日：1978-08-01

申请人： Suzuo Suzuki ,  Hastuo Nagaishi ,  Kenji Masaki

发明人： Suzuo Suzuki ,  Hastuo Nagaishi ,  Kenji Masaki

IPC分类号： F02P5/15 ,  F02P7/073 ,  H01T19/04 ,  H03K17/965 ,  F02P5/04 ,  F02M25/06 ,  G01P3/48

CPC分类号： F02P5/15 ,  F02P7/073 ,  H01T19/04 ,  H03K17/965 ,  Y02T10/46

摘要： A pulse generator of the corona discharge type for sensing engine crankshaft angle in an engine control system having a rotor with a plurality of pulse generating elements angularly spaced about the rotor axis. In order to generate as many pulses for each revolution of the rotor as desired to permit accurate measurement of the angular displacement of the rotor axis from a reference point, the rotor is constructed of a disc having a plurality of angularly equally spaced apart segmented regions to act as the pulse generating elements, and at least one electrode is stationarily mounted with respect to the disc to form an air gap to generate corona discharges thereacross in succession in cooperation with each one of the segmented regions upon rotation of the disc. An impedance element is provided to develop a voltage signal in response to the generation of the corona discharge.

摘要翻译： 一种用于在发动机控制系统中感测发动机曲轴角度的脉冲发生器，该发动机控制系统具有转子，所述转子具有围绕转子轴线成角度地间隔开的多个脉冲发生元件。 为了根据需要为转子的每转产生尽可能多的脉冲以允许精确地测量转子轴线与参考点的角位移，该转子由具有多个角度等间隔的分段区域的盘构成， 作为脉冲发生元件，并且至少一个电极相对于盘静止地安装以形成空气间隙，以在盘旋转时与每个分割区域相互连续地产生电晕放电。 提供阻抗元件以响应于电晕放电的产生而产生电压信号。

公开(公告)号：US4210112A

公开(公告)日：1980-07-01

申请号：US971493

申请日：1978-12-20

申请人： Koyo Nakamura ,  Hastuo Nagaishi

发明人： Koyo Nakamura ,  Hastuo Nagaishi

IPC分类号： F02D21/08 ,  F02D41/18 ,  F02M25/07 ,  F02M25/06

CPC分类号： F02D41/182 ,  F02D41/0072 ,  F02M26/57 ,  Y02T10/47

摘要： An exhaust gas recirculation (EGR) system comprises a vacuum operated EGR control valve, a differential pressure modulator to produce a control negative pressure for operating the control valve by modulating engine intake vacuum with air, sensors to sense certain parameters of the engine operating condition and an electronic controller which memorizes an optimum control pattern with respect to engine operating conditions to provide a control signal representing an optimum EGR rate to an electromagnetic valve, which regulates the magnitude of a signal negative pressure to be applied to the pressure modulator, so that EGR can be effected exactly at an optimum rate under every operating condition of the engine.

摘要翻译： 排气再循环（EGR）系统包括真空操作的EGR控制阀，差压调制器，以产生用于通过用空气调节发动机进气真空来操作控制阀的控制负压，感测传感器以感测发动机工作状态的某些参数;以及 存储关于发动机工作条件的最佳控制模式的电子控制器，以向电磁阀提供表示最佳EGR率的控制信号，该电磁阀调节要施加到压力调节器的信号负压的大小，使得EGR 可以在发动机的每个运行条件下以最佳速率精确地实现。