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    • 4. 发明公开
    • 유체용 개폐밸브장치
    • 液体开关阀装置
    • KR1020070110933A
    • 2007-11-20
    • KR1020077023312
    • 2006-04-13
    • 도요타 지도샤(주)
    • 이시토야츠쿠오고바야시노부오오가미노부유키야마시타아키라
    • F16J15/48F16K15/00F16K39/02
    • F16K25/005F16J15/104F16J15/48F16K1/44F16K15/025Y10T137/7868Y10T137/7869
    • A check valve (on-off valve device for fluid)(1A) having a valve body assembly (valve body)(3A) that is separated from and made to be in contact with a valve seat in order to open and close a fluid path, where the valve body assembly (3A) has, in order to achieve good sealing properties in both states where a pressure difference is high and where it is low, a valve body (10), a low-pressure seal section (12) formed from a soft material, and a high-pressure seal section (13) formed from a material harder than that of the low-pressure seal section (12). When the fluid path is closed, if the pressure difference between an upstream side path (7) and a downstream side path (8) is relatively low, the low-pressure seal section (12) is in intimate contact with a projection (6) to close the fluid path, and if the pressure difference is relatively high, the low-pressure seal section (12) is compressed and deformed by the pressure difference and, at the same time, the high-pressure seal section (13) is in intimate contact with a valve seat body (4) to close the flow path.
    • 具有阀体组件(阀体)(3A)的止回阀(流体开关阀装置)(1A),阀体组件(阀体)(3A)与阀座分离并与阀座接触,以便打开和关闭流体通路 在阀体组件(3A)中,为了在压力差高且低的两种状态下获得良好的密封性能,形成有阀体(10),形成有低压密封部(12) 以及由比所述低压密封部(12)的硬度更硬的材料形成的高压密封部(13)。 当流体路径关闭时,如果上游侧路径(7)和下游侧路径(8)之间的压力差相对较低,则低压密封部分(12)与突起(6)紧密接触, 关闭流体路径,如果压差相对较高,则低压密封部(12)由于压差而被压缩变形,同时高压密封部(13)处于 与阀座主体(4)紧密接触以关闭流路。
    • 5. 发明公开
    • 역지밸브
    • 检查阀具有满意的密封性能防止倒流
    • KR1020040103426A
    • 2004-12-08
    • KR1020040038379
    • 2004-05-28
    • 미우라고교 가부시키카이샤
    • 다케다도모히사
    • F16K15/00F16K15/06F16K17/06F16K17/00
    • F16K15/063F16K25/00Y10T137/7837Y10T137/7838Y10T137/7867Y10T137/7868Y10T137/7905
    • PURPOSE: A check valve is provided to enhance sealing property against backflow and easily change an expected fluid pressure, under which a fluid is made to flow. CONSTITUTION: A valve body(11) is composed of an elastic valve body part(12) and an inelastic valve body part(13) and is fixed to a valve shaft(18) passing though a center of the valve body(11) and supported in position to be axially movable. A valve seat(7) is composed of a first valve seat part(14) and a second valve seat part(15). A valve body contact plate(22) capable of contacting the elastic valve body part(12) from the fluid outlet(4) side is supported to the valve shaft(18) to be axially movable. The valve body contact plate(22) comprises an elastic valve body part pressing part(23) for pressing on an outer peripheral part of the elastic valve body part(12) and backflow fluid pressure exerting holes(25) for causing the fluid pressure from the fluid outlet(4) side to be exerted on the elastic valve body part(12). Springs(27) for urging the valve body(11) into contact with the valve seat(7) through the valve body contact plate(22) are interposed between the valve body contact plate(22) and a shaft support part(17) provided on the fluid outlet(4) side.
    • 目的:提供止回阀以提高防止回流的密封性能,并容易地改变预期的流体压力,在该流体压力下使流体流动。 构成:阀体(11)由弹性阀体部(12)和非弹性阀体部(13)构成,并且固定在通过阀体(11)的中心的阀轴(18)上, 支撑在轴向可移动的位置。 阀座(7)由第一阀座部(14)和第二阀座部(15)构成。 能够从流体出口(4)侧接触弹性阀体部分(12)的阀体接触板(22)被支撑在阀轴(18)上以便可轴向移动。 阀体接触板(22)包括用于按压弹性阀体部分(12)的外周部分的弹性阀体部分按压部分(23)和用于使来自弹性阀体部分(12)的流体压力的回流流体压力施加孔 流体出口(4)侧被施加在弹性阀体部分(12)上。 用于通过阀体接触板(22)推压阀体(11)与阀座(7)接触的弹簧(27)插入在阀体接触板(22)和轴支撑部分(17)之间,所述轴支撑部分 在流体出口(4)侧。
    • 7. 发明授权
    • 유체용 개폐밸브장치
    • 全面开放
    • KR100909454B1
    • 2009-07-28
    • KR1020077023312
    • 2006-04-13
    • 도요타 지도샤(주)
    • 이시토야츠쿠오고바야시노부오오가미노부유키야마시타아키라
    • F16J15/48F16K15/00F16K39/02
    • F16K25/005F16J15/104F16J15/48F16K1/44F16K15/025Y10T137/7868Y10T137/7869
    • 차압이 고압의 상태와 저압의 상태의 양쪽에서 양호한 시일성을 얻기 위하여 밸브자리부에 대하여 접촉/이탈함으로써 유체통로를 연통/봉쇄하는 밸브체 어셈블리 (밸브체)(3A)를 구비한 체크밸브(유체용 개폐밸브장치)(1A)에 있어서, 밸브체 어셈블리(3A)는 밸브 본체(10)와, 연질재료로 이루어지는 저압 시일부(12)와, 저압 시일부(12)보다 경질인 재료로 이루어지는 고압 시일부(13)를 구비하고, 유체통로가 봉쇄될 때 상기 유체통로의 상류측 통로(7)와 하류측 통로(8)의 차압이 비교적 저압인 경우는 저압 시일부(12)가 돌기부(6)에 밀착함으로써 상기 유체통로가 봉쇄되고, 상기 차압이 비교적 고압인 경우는, 저압 시일부(12)가 차압에 의하여 압축변형됨과 동시에, 고압 시일부(13)가 밸브자리 본체(4)에 밀착함으로써 상기 유체 통로가 봉쇄된다.
    • 在差压高或低的任何一种情况下,能够获得高密封性的止回阀(流体开闭阀装置)1A包括与用于通信的阀座部分接触和分离的阀体组件(阀体)3A 并阻断流体通道。 阀体组件3A包括阀体10,由软质材料构成的低压密封部12以及由比低压密封部12更硬的材料构成的高压密封部13.在将流体通路 当流体通路中的上游路径7和下游路径8之间的压差相对较低时,低压密封部分12与突起6紧密接触以阻塞流体通道,而当差压为 相对较高时,低压密封部12由于压差而压缩变形,并且高压密封部13与阀座体4紧密接触,从而阻塞流体通道。