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    • 1. 发明授权
    • Pressure sensor
    • 压力传感器
    • US5000047A
    • 1991-03-19
    • US316647
    • 1989-02-28
    • Yukihiro KatoMasahiro AsaiYosihumi WatanabeTomohiro Watanabe
    • Yukihiro KatoMasahiro AsaiYosihumi WatanabeTomohiro Watanabe
    • G01L9/00
    • G01L19/003G01L19/0084G01L19/0645G01L19/143
    • This pressure sensor comprises a housing having a cavity at at least one end portion thereof, a pressure detecting element provided with the cavity and generating an electric signal corresponding to the pressure detected, a transmitter for transmitting the signal to the outside of the housing, and hermetically sealed with one end thereof connected to the pressure detecting element, a sealed medium provided within the cavity to prevent deterioration of the pressure detecting element, a diaphragm provided to cover the surface of the cavity, and a sealing element for sealing the sealed medium within the cavity and provided in a portion connected to the cavity of the housing, and further, a sealing ability of either the hermetic seal portion of the transmitter or of the sealing element is improved by utilizing a back pressure of a pressure medium. The sealing ability is improved by either making both surfaces of a diaphragm and of a sealing element form a common surface of the housing, by forming a grooved portion surrounding the hermetic terminal, or by attenuating the diameter of the top end portion of the housing. Leakage of the sealing liquid from the hermetic terminal or the sealing element is thus effectively prevented, and the reliability of the mechanical strength of the connecting portion of the housing and the device on which the housing is installed is improved, and thus a high reliability semiconductor pressure sensor to be used for detecting the pressure of a high pressure medium can be obtained.
    • 该压力传感器包括在其至少一个端部处具有空腔的壳体,设置有空腔并产生对应于所检测的压力的电信号的压力检测元件,用于将信号传输到壳体的外部的发射器,以及 气密密封,其一端连接到压力检测元件,密封介质,设置在腔内以防止压力检测元件的劣化,设置成覆盖空腔表面的隔膜;以及用于密封密封介质的密封元件 并且设置在与壳体的空腔相连的部分中,并且通过利用压力介质的背压来改善发射器或密封元件的气密密封部分的密封能力。 通过将隔膜的两个表面和密封元件形成外壳的共同表面,通过形成围绕密封端子的开槽部分,或者通过减小外壳的顶端部分的直径来提高密封能力。 因此,能够有效地防止来自密封端子或密封元件的密封液的泄漏,并且壳体的连接部和安装壳体的装置的机械强度的可靠性提高,因此高可靠性半导体 可以获得用于检测高压介质的压力的压力传感器。
    • 5. 发明授权
    • Assist gas fuel injection mechanism for 2-cycle internal combustion engine
    • 辅助二冲程内燃机的燃气喷射机构
    • US06536386B2
    • 2003-03-25
    • US09944170
    • 2001-09-04
    • Masahiro AsaiYuji Marui
    • Masahiro AsaiYuji Marui
    • F02B3304
    • F02D13/0284F01L3/205F02B21/00F02B29/00F02B33/04F02B2075/025F02M69/042F02M69/08F02M69/10Y02T10/146Y02T10/18
    • An assist gas fuel injection mechanism for a 2-cycle internal combustion engine includes a chamber communicated to a combustion chamber through a communicating passage. A rotary valve is provided in the communicating passage for controlling the opening and closing of the communicating passage. A fuel injection device is provided in the communicating passage between the rotary valve and the chamber. With this configuration, a highly compressed gas from the chamber, and fuel from the fuel injection device, are mixed with each other, and a concentrated mixture gas is supplied to the combustion chamber through the communicating passage. A protective layer is provided on the outside surface of the valve body of the rotary valve by using a material which is softer than the valve body of the rotary valve and the housing of the rotary valve and which is susceptible to plastic deformation.
    • 用于2循环内燃机的辅助气体燃料喷射机构包括通过连通通道与燃烧室连通的室。 在连通通道中设置有旋转阀,用于控制连通通道的打开和关闭。 燃料喷射装置设置在旋转阀和腔室之间的连通通道中。 利用这种构造,将来自腔室的高度压缩的气体和来自燃料喷射装置的燃料彼此混合,并且通过连通通道将浓缩的混合气体供应到燃烧室。 通过使用比旋转阀的阀体和旋转阀的壳体更柔软并且易于塑性变形的材料,在旋转阀的阀体的外表面上设置保护层。
    • 6. 发明授权
    • Two-cycle internal combustion engine
    • 双循环内燃机
    • US06230672B1
    • 2001-05-15
    • US08866299
    • 1997-05-30
    • Yoichi IshibashiKenji NishidaShinichi IsomuraMasahiro AsaiHideki NoritakeMasami Takubo
    • Yoichi IshibashiKenji NishidaShinichi IsomuraMasahiro AsaiHideki NoritakeMasami Takubo
    • F02B2520
    • F02B25/14F02B25/20F02B2075/025
    • To provide a two-cycle internal combustion engine capable of preventing the blow-by phenomenon to improve fuel economy and attain a high exhaust gas purifying performance, and increasing the responsiveness of fuel injection volume. In a two-cycle internal combustion engine, a chamber is disposed in scavenging passages for communicating a crank chamber to a combustion chamber, sealable control valves are respectively disposed in an inlet and an outlet of the chamber, and a fuel feeding system for the supply of fuel into the chamber is provided. The chamber is communicated to one scavenging passage out of a plurality of parallel scavenging passages. The combustion chamber side control valve disposed at an outlet of the chamber on the downstream side of the crank case side control valve provided at an inlet of the chamber, is positioned at the bottom portion of a scavenging passage communicated to the chamber.
    • 提供能够防止窜气现象提高燃料经济性并获得高废气净化性能的双循环内燃机,并且提高燃油喷射量的响应性。 在一个双循环内燃机中,腔室设置在用于将曲柄室连通到燃烧室的扫气通道中,可密封的控制阀分别设置在腔室的入口和出口中,以及用于供给的燃料供给系统 提供了燃料进入腔室。 所述室与多个平行清扫通道中的一个清除通道相通。 设置在设置在室的入口处的曲轴箱侧控制阀的下游侧的室的出口处的燃烧室侧控制阀位于与室连通的扫气通道的底部。