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    • 4. 发明授权
    • Flow rate sensor
    • 双隔膜差压流量传感器
    • US06640650B2
    • 2003-11-04
    • US10368376
    • 2003-02-20
    • Hironori MatsuzawaTomoko Shibata
    • Hironori MatsuzawaTomoko Shibata
    • G01F138
    • G01F1/38
    • A flow rate sensor high in pressure resistance has a structure to facilitate the measurement of a minuscule differential pressure for measurement of a very small flow rate. A chamber (20) is defined into a primary chamber (21) and a secondary chamber (25) by two diaphragms (31, 32) arranged in an opposed relation to each other. A fluid is passed from the primary chamber to the secondary chamber through a bypass (35) having an orifice portion (40) thereby to generate a differential pressure. The load generated by the fluid pressure fluctuations received by the first and second diaphragms is detected as a difference of displacement by a load difference sensor (50) arranged between the first and second diaphragms thereby to detect the flow rate of the fluid. Displacement limiting members (61, 62) are provided for the diaphragms or the load difference sensor so that the displacement due to the fluid pressure fluctuations received by the first and second diaphragms may not exceed a predetermined amount.
    • 高耐压性的流量传感器具有便于测量微小差压的结构,用于测量非常小的流量。 腔室(20)通过以彼此相对的关系布置的两个隔膜(31,32)限定为主室(21)和次室(25)。 流体通过具有孔口部分(40)的旁路(35)从初级室通过次级室,从而产生差压。 通过由第一和第二隔膜接收的流体压力波动产生的负载被检测为由布置在第一和第二隔膜之间的负载差异传感器(50)的位移差,从而检测流体的流量。 为隔膜或负载差分传感器提供位移限制件(61,62),使得由于由第一和第二隔膜接收的流体压力波动引起的位移可能不超过预定量。
    • 5. 发明授权
    • Injector
    • 注射器
    • US06471143B2
    • 2002-10-29
    • US09837516
    • 2001-04-19
    • Hironori MatsuzawaRokurou OzakiTomoko Shibata
    • Hironori MatsuzawaRokurou OzakiTomoko Shibata
    • B05B108
    • F04B45/043F04B43/0736
    • An injector is disclosed, in which the change in the internal pressure of each chamber is relaxed when a pressure application mechanism is reciprocating thereby to lengthen the service life of the component parts including a diaphragm portion. The injector (I) comprises a body B including therein a first outer inlet portion (13) for a pressured fluid (F), a first outer outlet portion (14), a connecting inlet portion (21) communicating with the first outer inlet portion or the first outer outlet portion, a connecting outlet portion (22), a second outer inlet portion (31) communicating with the connecting inlet portion or the connecting outlet portion, a second outer outlet portion (32), a first chamber (40), a second chamber (50), intake check valves (61, 71), discharge check valves (66, 76), a pressure application mechanism (80), a working fluid influx/outlet portion (90) for causing the working fluid (A) for reciprocating the pressure application mechanism to flow into or from at least one of the two chambers, urging diaphragm portions (100, 120) external to the pressure application mechanism (80), and urging units (110, 115, 130, 135) for urging the urging diaphragm portion inward.
    • 公开了一种喷射器,其中当压力施加机构往复运动时,每个室的内部压力的变化被放宽,从而延长包括隔膜部分的部件的使用寿命。 注射器(I)包括主体B,主体B包括用于加压流体(F)的第一外部入口部分(13),第一外部出口部分(14),与第一外部入口部分 或第一外部出口部分,连接出口部分(22),与连接入口部分或连接出口部分连通的第二外部入口部分(31),第二外部出口部分(32),第一室(40) ,第二室(50),进气止回阀(61,71),排气止回阀(66,76),压力施加机构(80),工作流体流入/出口部分(90),用于使工作流体 A),用于使压力施加机构往复运动以流入或从两个室中的至少一个流入,从而推动压力施加机构(80)外部的隔膜部分(100,120),以及推动单元(110,115,130,135 ),用于向内推动推动隔膜部分。