公开(公告)号：AU6953601A

公开(公告)日：2002-01-30

申请号：AU6953601

申请日：2001-07-17

Applicant: NOK CORP

Inventor： YOSHIHARA HISAO ,  KURITA YOSHIYUKI ,  SASAKI KENNJI ,  YOSHIDA MINORU

IPC: B32B1/08 ,  B32B27/34 ,  F15B1/12

Abstract: In an accumulator which is provided in a pipe of an equipment so as to temporarily accumulate a pressure within a piping flow passage or absorb a pulsation of a fluid pressure generated within the pipe by a pump or the like, in order to improve a durability against repeated bending and stretching motions of a bladder (3) under a low temperature environment not more than 0 DEG C, and effectively prevent a cushion gas in a gas chamber from being reduced, the bladder (3) has a laminated structure, for example, constituted of a center elastic layer (321), a gas shielding layer (322) in an outer side thereof and an outer elastic layer (323) in a further outer side thereof, the center elastic layer (321), the gas shielding layer (322) and the outer elastic layer (323) are made of a polyamide resin, and the gas shielding layer (322) has a module of bending elasticity higher than that of the center elastic layer (321) and the outer elastic layer (323).

公开(公告)号：EP1302672A4

公开(公告)日：2004-12-15

申请号：EP01948044

申请日：2001-07-17

Applicant: NOK CORP

Inventor： YOSHIHARA HISAO ,  KURITA YOSHIYUKI ,  SASAKI KENNJI ,  YOSHIDA MINORU

IPC: B32B1/08 ,  B32B27/34 ,  F15B1/12 ,  B32B27/08 ,  F15B1/10

CPC classification number: B32B27/34 ,  B32B1/08 ,  B32B25/08 ,  B32B25/18 ,  B32B2250/40 ,  B32B2377/00 ,  B32B2597/00 ,  F15B1/12 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/3155 ,  F15B2201/3156 ,  F15B2201/32 ,  F15B2201/41 ,  F15B2201/415 ,  F15B2201/435

Abstract: An accumulator installed in the piping of equipment and temporarily accumulating a pressure in a pipe flow path or absorbing, by a pump, the pulsation of a fluid pressure generating in the piping, wherein a bladder (3) is formed in a laminated structure having, for example, a center elastic layer (321), gas shielding layers (322) on the outside thereof, external elastic layers (323) on the outside of the gas shielding layers and the center elastic layer (321), gas shielding layers (322), and external elastic layers (323) are formed of polyamide resin, and the gas shielding layers (322) are formed so that the bending elastic modulus thereof is higher than the bending elastic moduli of the center elastic layers (321) and external elastic layers (323), whereby the durability of the bladder (3) against a repeated bending and stretching operation in the low temperature environment of 0 DEG or below can be increased and the volume of cushion gas in a gas chamber can be effectively prevented from decreasing.

Abstract translation: 在设置在设备的管道中的蓄能器中，以便临时累积管道流道内的压力或通过泵等吸收管道内产生的流体压力的脉动，以提高耐久性 气囊（3）在不高于0℃的低温环境下反复进行弯曲和拉伸运动，有效地防止了气室中的缓冲气体的减少，气囊（3）具有层压结构， 由中心弹性层（321），其外侧的气体屏蔽层（322）和外侧的外侧弹性层（323）构成，中心弹性层（321），气体屏蔽层 322）和外弹性层（323）由聚酰胺树脂制成，并且气体屏蔽层（322）具有比中心弹性层（321）和外弹性层（323）高的弯曲弹性模量， 。

公开(公告)号：JPH04165104A

公开(公告)日：1992-06-10

申请号：JP29282190

申请日：1990-10-30

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI

IPC: F15B1/24

Abstract: PURPOSE:To perform continuous change of an operation lower limit value at any time by arranging a magnetic substance in a gas chamber or a piston against a magnet provided on the piston or the gas chamber, and magnetizing the magnetic substance by means of a coil provided on the outside of the container. CONSTITUTION:A magnet 16 is fixed in a piston 13 for partitioning the inside of a container 11 into a gas chamber 12A and a liquid chamber 12B. A magnet substance 17 is provided in a gas chamber 12A side bottom portion of the container 11. A coil 18 connected to a DC power supply is provided on the outside of the container 11 through a switching means. Consequently, the attracting force or the repulsive force generated between the magnet 16 and the magnetic substance 17 by the magnetization of the magnetic substance 17 is exerted on the piston 16. Thereby the operation limit value is continuously and arbitrarily set at any time.

公开(公告)号：JP2008286313A

公开(公告)日：2008-11-27

申请号：JP2007132273

申请日：2007-05-18

Applicant: Nok Corp ,  Nok株式会社

Inventor： KURITA YOSHIYUKI

IPC: F15B1/08

Abstract: PROBLEM TO BE SOLVED: To provide an accumulator with a reliable gas valve having excellent sealing performance. SOLUTION: In the accumulator consisting of a bladder arranged in the shell to separate it into a gas chamber and a fluid chamber and the gas valve 2, held by the shell, for filling the gas chamber with gas, the gas valve is provided with: a valve body 3, held by a shell, having a communication passage 31 for communicating the gas chamber and an atmospheric side; a piston rod 4 arranged in a manner reciprocatable in the communication passage; a sealing means 5 for sealing a gap between a piston rod outer circumferential surface and a communication passage inner circumferential surface; a spring means 6 for pressurizing the piston rod to the atmospheric side; and a stopper means 9 for stopping movement of the spring means to the gas chamber side. Sealing of the sealing means is canceled by pressing the piston rod into the gas chamber side by a certain quantity while resisting the spring means, and thus sealing of the gas in the gas chamber is enabled because the atmospheric side and the gas chamber side are communicated with each other. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有优异密封性能的可靠性气阀的蓄能器。 解决方案：在由布置在壳体中的气囊组成的蓄能器中，将其分离成气室和流体室以及由壳保持的气阀2，用气体填充气室，气阀为 设置有：由壳体保持的阀体3，具有用于连通气室和大气侧的连通通道31; 活塞杆4，其以可往复运动的方式布置在连通通道中; 用于密封活塞杆外圆周表面和连通通道内圆周表面之间的间隙的密封装置5; 用于将活塞杆加压到大气侧的弹簧装置6; 以及用于停止弹簧装置移动到气室侧的止动装置9。 密封装置的密封通过将活塞杆压入气室侧而抵抗弹簧装置而被消除，从而由于气氛侧和气室侧的连通而使得气室中的气体密封成为可能 与彼此。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JPH11108001A

公开(公告)日：1999-04-20

申请号：JP27301397

申请日：1997-10-06

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI

IPC: F15B1/08

Abstract: PROBLEM TO BE SOLVED: To always normally operate a bladder, and show preset elimination performance against pulsative motion by arranging projected surfaces projected in the opposite direction to a lid of the bladder, on an opening peripheral surface surrounding a fluid port of a shell. SOLUTION: Operation fluid is flowed from a fluid port 6 of an accumulator 1 and applied to a lid 9 of a bladder 9. The bladder 8 is formed in an inverted manner to a gas chamber 12 by means of projected surfaces 11 at its side of the lid 9. The bladder 8 is thus lifted and separated from an opening peripheral surface 7, and moved while increasing inversion state prepared by the projected surfaces 11, to the side of the gas chamber 12. The operation fluid is then applied to the bladder 8, on its whole surface on the side of a fluid chamber 13. Since the operation fluid is comparatively intensively applied to the lid 9, the bladder 8 can be remarkably shifted to the gas chamber 12 with a normal inversion state of the lid 9. The bladder 8 can thus keep a normally deformed state, show satisfactory responsiveness without strong partial stress, nor any crack.

公开(公告)号：JP2010151286A

公开(公告)日：2010-07-08

申请号：JP2008332610

申请日：2008-12-26

Applicant: Nok Corp ,  Nok株式会社

Inventor： KURITA YOSHIYUKI ,  ANAMINAMI YOSHIYUKI ,  SHIMAZU TAKASHI

IPC: F15B1/08

Abstract: PROBLEM TO BE SOLVED: To provide a metallic bellows type accumulator whose durability and safety are improved by releasing liquid inside a liquid chamber to prevent a metallic bellows from deforming and damaging when the pressure of the liquid inside the liquid chamber has increased by a fire or the like in a 0-down state where the metallic bellows has contracted. SOLUTION: In the metallic bellows type accumulator, the sealing means comprises a sealing member, made of an elastic material, in which two reinforced rings made of a metallic material are overlapped to be embedded and a holder for holding the sealing member to a side of a cap in an axially movable manner. Then, there is provided a communicating means for making a side of the liquid chamber and a side of an introducing hole communicate with each other between the overlapped surfaces of the two reinforced rings when the sealing member is reduced to ashes. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种金属波纹管式蓄能器，其通过在液体室内释放液体来改善其耐久性和安全性，以防止当液体室内的液体的压力增加时金属波纹管变形和损坏 火灾等在金属波纹管收缩的0关闭状态。 解决方案：在金属波纹管式蓄能器中，密封装置包括由弹性材料制成的密封构件，其中由金属材料制成的两个加强环重叠以嵌入，以及用于保持密封构件的保持器 帽的一侧可轴向移动。 然后，当密封构件减少为灰烬时，设置有用于使液室的一侧和导入孔的一侧在两个增强环的重叠表面之间相互连通的连通装置。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005240934A

公开(公告)日：2005-09-08

申请号：JP2004053041

申请日：2004-02-27

Applicant: Nok Corp ,  Nok株式会社

Inventor： KURITA YOSHIYUKI

IPC: F15B1/24

Abstract: PROBLEM TO BE SOLVED: To provide a piston type accumulator 1 for providing a relatively large shock absorbing effect. SOLUTION: In the piston type accumulator 1, a piston 6 is inserted into a cylinder 2 to form a gas chamber 7, and gas exerting gas spring action is sealed in the gas chamber 7. A throttle mechanism 15 exerting dumper action is also disposed to the gas chamber 7. In the throttle mechanism 15, an orifice 17 is formed in a tabular partition member 16 fixed to the inner face of the cylinder 2, so that the manufacture and attachment is facilitated. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于提供相对较大的减震效果的活塞式蓄能器1。 解决方案：在活塞式蓄能器1中，将活塞6插入到气缸2中以形成气室7，并且气体弹簧作用气体被密封在气室7中。施加自卸车作用的节气门机构15是 也设置在气室7中。在节气门机构15中，孔17形成在固定在气缸2的内表面上的平板状分隔构件16中，从而便于制造和附着。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2003013902A

公开(公告)日：2003-01-15

申请号：JP2001201617

申请日：2001-07-03

Applicant: Nok Corp ,  エヌオーケー株式会社

Inventor： KURITA YOSHIYUKI ,  SASAKI KENJI

IPC: F15B1/08 ,  B29C35/02

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing the plug for an accumulator capable of simplifying the manufacture of the plug, solving the problem of contamination as well. SOLUTION: The method of manufacturing an accumulator plug whereby a vulcanized molding is performed with a poppet 4 being installed in a product cavity 22 in molding a plug body having a rubbery elastic film by the use of a molding die 21, provides a stepped part 25 on the inside wall of the product cavity 22 beforehand at the outer peripheral side of the poppet 4 disposed in a given position of the product cavity 22 and further forms a prescribed gap 26 in the radial direction between the side face 4a of the poppet 4 and the stepped part. The vulcanized molding is thus carried out with a part of molding material 3A being filled in said gap 26.

Abstract translation: 要解决的问题：提供一种制造用于蓄能器的插头的方法，其能够简化插头的制造，也解决了污染问题。 解决方案：通过使用成型模具21成型具有橡胶弹性膜的塞体的提升阀4安装在产品空腔22中进行硫化成型的方法，提供了一种台阶部25 在产品腔22的内壁上预先设置在产品腔22的给定位置的提升阀4的外周侧，并且在提升阀4的侧面4a和 阶梯部分。 因此，硫化成型体的一部分成型材料3A被填充在所述间隙26中。

公开(公告)号：JPH1182401A

公开(公告)日：1999-03-26

申请号：JP25943797

申请日：1997-09-09

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI

IPC: F15B1/08

Abstract: PROBLEM TO BE SOLVED: To prevent a bladder from being excessively deformed on a gas chamber side, and also prevent the pressure of a liquid chamber or a fluid circuit from being suddenly raised by arranging a spring between the bladder and a shell within the gas chamber. SOLUTION: A bladder 2 having a resin film layered structure is erected within a shell 1 made of a rigid material such as metal, a gas chamber 3 and a liquid chamber 4 are formed within the shell 1, and a coil spring 7 for preventing the excessive deformation of the bladder 2 is arranged between the bladder 2 and the shell 1 within the gas chamber 3 so as to be concentric to the bladder 2 and the shell 1. When the pressure on the liquid chamber 2 side is raised, the bladder 2 is compressed on the gas chamber 3 side while compressing the spring 7 on the gas chamber 3 side, and the reaction of the spring 7 acts on the bladder 2. Since the deformation of the spring 7 is more advanced the more the bladder 2 is deformed, the reaction of the spring 7 is increased, whereby the pressure within the liquid chamber 4 or a fluid circuit can be prevented from being suddenly raised.

公开(公告)号：JPH08229618A

公开(公告)日：1996-09-10

申请号：JP3803295

申请日：1995-02-27

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI ,  KUMAGAI MAMORU

IPC: B21D37/10 ,  B21D37/14

Abstract: PURPOSE: To prevent wear due to eccentricity in both faces of joining parts because the guide pin and guide bush for positioning and guiding the attaching plates of forming dies are slid over each other and also joining parts for positioning the combination of the forming dies are simultaneously joined. CONSTITUTION: In a forming die device having split dies and the guide pin or the guide bush on a pair of the attaching plates, one split die 15 and the other split die 15 have the positioning/joining part for positioning the forming cavity 16, elastic supporting parts 20 are provided in at least one between surfaces formed by holes 3, 4 of the attaching plates fit the split dies 15 or the fitting surfaces 8, 9 of the split dies 15 or the guide pin 6 or the guide bush 7 and the fitting surfaces having the elastic supporting parts 20 is made into loose fit.