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    • 3. 发明授权
    • Microwave and luminous probe
    • 微波和发光探头
    • US4545238A
    • 1985-10-08
    • US563800
    • 1983-12-21
    • Masao KinoshitaTeruo YamanakaKizo HayakawaTakao Sugimoto
    • Masao KinoshitaTeruo YamanakaKizo HayakawaTakao Sugimoto
    • G01J1/02F02B77/08F02D35/00F02P17/12G01M15/04G01M15/06G01M15/10G01N22/00G01M15/00
    • G01M15/10G01M15/06
    • A microwave and luminous probe for use in a system for detecting the piston position in an internal combustion engine and the light emitted in a combustion chamber thereof on the basis of a microwave signal and a luminous signal includes a hollow cylindrical case body fitted into the combustion chamber, internal and external conductors coaxially inserted within the case body and having different diameters from each other in the ratio of from 1:1.5 to 1:4, an annular passage defined by an annular space formed between the internal and external conductors and serving as microwave and light transmitting members, and a dipole antenna composed of a metal tube forming the internal conductor protruded from the annular passage in the range of from 1/8 to 3/8 of the wavelength of the microwave. The probe detects the light emitted by combustion in the combustion chamber with high accuracy.
    • 用于检测内燃机中的活塞位置的系统中的微波和发光探针以及基于微波信号和发光信号在其燃烧室中发射的光包括装配在燃烧中的中空圆柱形壳体 腔室,内部和外部导体同轴地插入壳体内并具有彼此不同的直径,比例为1:1.5至1:4;环形通道,由形成在内导体和外导体之间的环形空间限定,并用作 微波和透光构件,以及由形成从环形通道突出的内部导体的金属管构成的偶极天线,在微波的波长的1/8至3/8的范围内。 探头以高精度检测燃烧室内的燃烧发出的光。
    • 6. 发明授权
    • Apparatus for detecting combustion timing
    • 用于检测燃烧正时的装置
    • US4492114A
    • 1985-01-08
    • US496656
    • 1983-05-20
    • Teruo YamanakaKizo HayakawaYasuhiko SuzukiMichiru Esaki
    • Teruo YamanakaKizo HayakawaYasuhiko SuzukiMichiru Esaki
    • F02P17/12F02B1/04F02B3/06F02B77/08F02D41/40F02P17/00G01M15/06G01M15/10G01M15/00
    • F02D35/022F02B77/085F02D41/401G01M15/06G01M15/10F02B1/04F02B3/06Y02T10/44
    • An apparatus for detecting combustion timing in an internal combustion engine comprises: a microwave unit including a microwave oscillator for generating a microwave having a predetermined frequency, a transmission and reception separator for separating transmitted and received microwaves from each other, and a detector for detecting the received microwave so as to be converted to a low frequency signal; a probe including a microwave sensor for radiating the microwave from the separator into a combustion chamber and receiving a reflected wave, and a light sensor for electrically detecting light emitted upon combustion in the combustion chamber; and a processing unit including a peak detector circuit for detecting peaks of a microwave signal supplied by the detector, a luminous signal processor for detecting a peak value of a luminous signal supplied by the light sensor in each cycle and also detecting the time when the luminous signal reaches an intensity having a predetermined proportion to the peak value thereof, and an operating unit for operating a time difference between a middle point between a pair of peaks of the microwave signal and the time when the luminous signal reaches an intensity having a predetermined portion to the peak value thereof based on peak and luminous signals. The apparatus accurately detects the timing for starting combustion with respect to a top dead center of the internal combustion engine.
    • 一种用于检测内燃机中的燃烧正时的装置,包括:微波单元,包括微波振荡器,用于产生具有预定频率的微波;发射和接收分离器,用于将发射和接收的微波相互分离;以及检测器, 接收微波,以转换成低频信号; 包括微波传感器的探针,用于将来自分离器的微波辐射到燃烧室并接收反射波;以及光传感器,用于电气地检测在燃烧室中燃烧时发射的光; 以及处理单元,包括用于检测由检测器提供的微波信号的峰值的峰值检测器电路,用于检测在每个周期中由光传感器提供的发光信号的峰值的发光信号处理器,并且还检测发光 信号达到与其峰值具有预定比例的强度,以及操作单元,用于操作微波信号的一对峰值之间的中间点与发光信号达到具有预定部分的强度的时间之间的时间差 基于峰值和发光信号到其峰值。 该装置精确地检测相对于内燃机的上止点开始燃烧的定时。