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    Piston-type accumulator
    25.
    发明专利
    Piston-type accumulator 失效
    活塞式累加器

    公开(公告)号：JPS60188601A

    公开(公告)日：1985-09-26

    申请号：JP4464684

    申请日：1984-03-07

    Applicant: Nippon Denso Co Ltd ,  Toyota Motor Corp

    Inventor： GOSHIMA TAKAHIRO ,  HATSUTORI YOSHIYUKI ,  MATSUURA RIYOUICHI ,  OOTSUKI HIROMI ,  NOMURA YOSHIHISA ,  OKA HIROYUKI

    IPC: B60T8/40 ,  B60T13/14 ,  F15B1/24 ,  F16L55/04

    CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/32 ,  F15B2201/41 ,  F15B2201/415

    Abstract: PURPOSE:To prevent the entry of compressed gas from a gas chamber into a fluid chamber by providing between a cylinder and a piston a pressure fluid chamber filled with pressure fluid which surrounds the piston. CONSTITUTION:Between two T-rings 18 surrounding a piston 6, a ring groove 22 is made, and a pressure fluid chamber 24 is formed between the ring groove 22 and the inside surface of a cylinder section 15. Moreover, a small piston 26 is air and fluid tightly fixed in the closed-end round hole made on the gas chamber 16 side of the piston 6, and the closed-end hole internal space is connected to the pressure fluid chamber 24 by use of a through-hole 28 and it is filled with oil. And the small piston 26 is pressed not only with the gas in the gas chamber 16 but also with the force of a spring 32, and therefore the fluid pressure in the pressure fluid chamber 24 is higher than the gas pressure in the gas chamber 16, reversing the pressure gradient; thus the leakage of gas can be prevented.

    Abstract translation: 目的：为了防止通过在气缸和活塞之间提供填充有围绕活塞的压力流体的压力流体室，压缩气体从气室进入流体室。 构成：在活塞6周围的两个T形环18之间形成有环槽22，并且在环槽22与缸部15的内表面之间形成有压力流体室24.此外，小活塞26是 空气和流体紧密地固定在活塞6的气室16侧形成的封闭圆形孔中，并且封闭端孔内部空间通过通孔28与压力流体室24连接， 充满油。 并且小活塞26不仅与气体室16中的气体一起被按压，而且也受到弹簧32的力的压力，因此压力流体室24中的流体压力高于气体室16中的气体压力， 逆转压力梯度; 从而可以防止气体泄漏。

    Accumulator
    26.
    发明专利
    Accumulator 有权
    累加器

    公开(公告)号：JP2010112431A

    公开(公告)日：2010-05-20

    申请号：JP2008284241

    申请日：2008-11-05

    Applicant: Advics Co Ltd ,  Nok Corp ,  Nok株式会社 ,  株式会社アドヴィックス

    Inventor： OTA TAKASHI ,  ARIKAWA TATSUHIRO ,  MIYAKE KUNIAKI ,  SASAKI KENJI ,  NAKAOKA MASAYA ,  MIZUTANI EIJI ,  HOSOI NORIYUKI ,  OGURA TOMOO

    IPC: F15B1/08

    CPC classification number: F16L55/053 ,  F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/32

    Abstract: PROBLEM TO BE SOLVED: To provide an outside gas type or inside gas type accumulator configured to reduce a pressure difference to be generated by a difference in thermal expansion coefficients when liquid and filled gas confined in a liquid chamber are thermally expanded at a zero-down time, thus reducing a pressure difference between inner and outer sides of a bellows to prevent the occurrence of plastic deformation of the bellows. SOLUTION: A disc-like gasket is held in a floatable state to a surface on a stay side in a bellows cap by a gasket holder. The disc-like gasket moves together with the bellows cap at a steady operation time. The disc-like gasket moves together with the bellows cap to contact with an end surface portion of the stay, thereby closing the liquid chamber at a zero-down time. The bellow cap moves toward a position where liquid pressure and gas pressure balance while the disc-like gasket keeps contacting with the stay due to a difference of pressure receiving areas in both the surfaces when the liquid in the liquid chamber is thermally expanded at a zero-down time. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种外部气体型或内部气体型蓄电池，其构造成当限制在液体室中的液体和填充气体在某一温度下膨胀时，减小由热膨胀系数的差异产生的压力差 从而减少波纹管的内外侧之间的压力差，以防止波纹管发生塑性变形。 解决方案：盘状垫圈通过垫圈支架以可浮动状态保持在波纹管盖的支撑侧上的表面。 盘状垫片在稳定的运行时间与波纹管盖一起移动。 盘形垫圈与波纹管盖一起移动以与支柱的端表面部分接触，从而在零关闭时关闭液体室。 波纹管盖移动到液体压力和气体压力平衡的位置，同时当液体室中的液体热膨胀为零时，盘形垫圈与支撑件保持接触，这是由于两个表面中的压力接收面积的差异 下降时间。 版权所有（C）2010，JPO＆INPIT

    Hydraulic circuit
    30.
    发明专利
    Hydraulic circuit 有权

    公开(公告)号：JP2004044740A

    公开(公告)日：2004-02-12

    申请号：JP2002205151

    申请日：2002-07-15

    Applicant: Advics:Kk ,  株式会社アドヴィックス

    Inventor： SUZUKI KENICHI ,  HATA KYOSUKE ,  TADA YOSHIHIKO

    IPC: B60T17/00 ,  F15B1/08 ,  F15B1/22 ,  F15B11/02 ,  F16L55/053 ,  F16L55/055

    CPC classification number: F15B1/22 ,  B60T13/148 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3153 ,  F15B2201/32 ,  F15B2201/411 ,  F15B2201/413 ,  F15B2201/415 ,  F16L55/053 ,  F16L55/055

    Abstract: PROBLEM TO BE SOLVED: To reduce pulsation of operating fluid delivered from a hydraulic pressure pump in a transient period until pressure in an operating fluid chamber exceeds a set pressure in a hydraulic circuit employing an accumulator operating when pressure in the operating fluid chamber is at the set pressure or higher. SOLUTION: In a hydraulic circuit including an accumulator A1 provided with a flow in passage Si making an operating fluid delivered from the hydraulic pump flow in a operating fluid chamber R2 and a flow out passage So making the operating fluid flow out from the operating fluid chamber R2 to a hydraulic actuator, an accumulator which operates when pressure in the operating fluid chamber R2 is the set pressure or more is adopted as the accumulator A1, and a vale mechanism Vo restricting supply of operating fluid to the hydraulic actuator when pressure in the operating liquid chamber R2 is lower than the set pressure and releasing supply restriction of the operating fluid to the hydraulic actuator when pressure in the operating fluid chamber R2 is at the set pressure or higher. COPYRIGHT: (C)2004,JPO

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