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41. 发明专利

JP2010048394A Bellows type accumulator 有权
标题翻译： BELLOWS型蓄能器
公开(公告)号：JP2010048394A
公开(公告)日：2010-03-04
申请号：JP2008215379
申请日：2008-08-25
申请人： Advics Co Ltd , Nok Corp , Nok株式会社 , 株式会社アドヴィックス
发明人： SASAKI KENJI , MIYAKE KUNIAKI , ARIKAWA TATSUHIRO , NAKAOKA MASAYA , SHIBATANI JUICHI , MIZUTANI EIJI
IPC分类号： F15B1/08
CPC分类号： F15B1/103 , F15B2201/205 , F15B2201/3153
摘要： PROBLEM TO BE SOLVED: To improve durability and stability by releasing liquid in a liquid chamber to prevent the deformation and damage of a bellows made of a metal material when the pressure of the liquid in the liquid chamber increases in a zero-down state where the bellows made of metal material is contracted.
SOLUTION: A metal bellows type accumulator comprises an oil port for regulating the contraction limit of the bellows made of the metal material, and a sealing means arranged between the oil port and a cap mounted to the bellows made of the metal material, to perform sealing between the liquid chamber and a lead-in hole. The sealing means comprises a sealing member and a holder for holding the sealing member to one side between the oil port side and the cap side. A clearance in the axial direction of the bellows is secured between the holder and the sealing member, and the area of a pressure receiving surface, generating force to press the sealing member toward the one side, of the sealing member is larger than that of a pressure receiving surface generating opposite force.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了通过在液体室中释放液体来提高耐久性和稳定性，以防止液体室中的液体的压力在零下降时由金属材料制成的波纹管的变形和损坏由金属材料制成的波纹管收缩的状态。解决方案：金属波纹管式蓄能器包括用于调节由金属材料制成的波纹管的收缩极限的油口，以及设置在油口和安装到由金属材料制成的波纹管的盖之间的密封装置，以在液体室和引入孔之间进行密封。密封装置包括密封构件和用于将密封构件保持在油口侧和盖侧之间的一侧的保持器。在保持器和密封构件之间固定有波纹管轴向的间隙，并且密封构件的压力接收面的面积朝向一侧挤压密封构件的面积大于受压面产生相反的力。版权所有（C）2010，JPO＆INPIT

42. 发明专利

JP2007187229A Metal bellows-type accumulator 审中-公开
标题翻译：金属BELLOWS型蓄能器
公开(公告)号：JP2007187229A
公开(公告)日：2007-07-26
申请号：JP2006005219
申请日：2006-01-12
申请人： Nok Corp , Nok株式会社
发明人： SASAKI KENJI
IPC分类号： F15B1/08
CPC分类号： F15B1/103 , F15B2201/205 , F15B2201/3153 , F15B2201/3158 , F15B2201/411
摘要： PROBLEM TO BE SOLVED: To provide a metal bellows-type accumulator in which plucking and permanent setting are prevented from occurring due to the structure wherein a valve element is compressed to be sealed when a so-called zero-down is caused, and sealing performance of the valve element is improved by stopping outflow of at least a specified amount of pressurized liquid from a liquid chamber which causes a deformation of the metal bellows. SOLUTION: The accumulator includes a shell 2 having an attachment part 23 at one end and a gas-plug 21 fixed at the other end, the metal bellows 3 which keeps one end fixed on the side of the attachment part 23 and the other end connected to a bellows cap 31 to demarcate the inside of the shell 2 into a gas chamber 11 and the liquid chamber 12, an oil-port 4 which keeps a seal-holder 42, provided on the side of the liquid chamber 12 of the metal bellows 3, connected to the inside periphery, and a lip-seal 5 which is fitted to the outside periphery of the seal-holder 42 to be attached to a groove 41 formed in the oil port 4. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种金属波纹管式蓄能器，其中由于其中当所引起的所谓零降压时阀元件被压缩以被密封的结构，防止了拔除和永久设置，并且通过停止从导致金属波纹管变形的液体室中的至少一定量的加压液体的流出来改善阀元件的密封性能。解决方案：蓄能器包括壳体2，壳体2的一端具有附接部分23，固定在另一端的气塞21，金属波纹管3将一端固定在安装部分23的一侧，另一端连接到波纹管盖31，以将壳体2的内部划分成气体室11和液体室12;油口4，其保持设置在液体室12侧的密封保持器42; 与内周连接的金属波纹管3和与密封保持架42的外周嵌合的唇形密封件5，安装在形成于油口4的槽41上。 C）2007，JPO＆INPIT

43. 发明专利

JP2005282730A Bellows type accumulator 审中-公开
标题翻译： BELLOWS型蓄能器
公开(公告)号：JP2005282730A
公开(公告)日：2005-10-13
申请号：JP2004098050
申请日：2004-03-30
申请人： Nok Corp , Nok株式会社
发明人： YOSHIHARA NAGAO , SASAKI KENJI
IPC分类号： F15B1/08
CPC分类号： F15B1/103 , F15B2201/205 , F15B2201/3153
摘要： PROBLEM TO BE SOLVED: To provide a bellows type accumulator, in which a positioning fixture for a gas plug is not necessary in welding the gas plug to a gas end cover integrated with a hexagonal nut, and in which the welded gas plug can be protected from disturbance due to a tool such as a wrench in installation of the accumulator onto a system. SOLUTION: In a hexagonal nut part 12 in the gas end cover 11 fixed to an upper part of a shell 3 of a cylindrical form having a bottom to form part of a housing 2, a groove 15 is provided for the gas end cover 11 to be engaged for closing a gas injection port 13 for injecting high pressure gas to a pressure enclosing chamber 7. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种波纹管式蓄能器，其中在将气塞焊接到与六角螺母结合的气体端盖上时，不需要用于气塞的定位夹具，并且其中焊接气塞可以防止在将蓄能器安装到系统上时由于诸如扳手的工具而受到干扰。解决方案：在固定到具有底部以形成壳体2的一部分的圆柱形的壳体3的上部的气体端盖11中的六角形螺母部分12中，为气体端部提供槽15 盖11用于封闭用于将高压气体注入到压力封闭室7中的气体注入口13。版权所有（C）2006，JPO＆NCIPI

44. 发明专利

JP2004069006A Accumulator 审中-公开
公开(公告)号：JP2004069006A
公开(公告)日：2004-03-04
申请号：JP2002232397
申请日：2002-08-09
申请人： Nok Corp , Nok株式会社
发明人： MOTOYAMA GENJI , SASAKI KENJI
IPC分类号： F15B1/24
摘要： PROBLEM TO BE SOLVED: To provide an accumulator 1 capable of effectively preventing soil and sand in applied fluid from getting caught between a bottom cover 3 and a piston 12, and an accumulator 1 capable of effectively protecting a piston seal 13. SOLUTION: This accumulator 1 comprises the bottom cover 3 provided at one end of a cylinder 2, the piston 12 slidably inserted into the cylinder 2 to be applied to the bottom cover 3 when slided, and the piston seal 13 installed around the piston 12 to seal it to the cylinder 2. Tapers 21 and 22 are provided in contact surfaces of the bottom cover 3 and the piston 12 to each other. A slit 23 is provided in a bottom cover side end surface of the piston 12 or a piston side end surface of the bottom cover 3. On the fluid side of the piston seal 13, a dust seal 24 comprising a U-packing or the like is provided. COPYRIGHT: (C)2004,JPO

45. 发明专利

JP2003336601A Accumulator 有权
标题翻译：累加器
公开(公告)号：JP2003336601A
公开(公告)日：2003-11-28
申请号：JP2002145940
申请日：2002-05-21
申请人： Nok Corp , Nok株式会社
发明人： YOSHIHARA NAGAO , SASAKI KENJI
IPC分类号： F15B1/08
CPC分类号： F15B1/103 , F15B2201/205 , F15B2201/3153
摘要： PROBLEM TO BE SOLVED: To provide an accumulator 1 capable of suppressing early wastage of a packing 20 of a rubber-like elastic material by strong compression to improve sealability of the packing 20, in the accumulator 1 having a sealing function of pressure inside the accumulator 1 when pressure on a piping side decreases. SOLUTION: This accumulator 1 has a seal holder 19 fixed to the inside of an oil port 5, the packing 20 held on the outside of the seal holder 19, and a bellows cap 8 moving when the pressure decreases to tightly contact with the packing 20. When the bellows cap 8 moves in the pressure decrease, the bellow cap 8 abuts on the seal holder 19 to make a gap between two sides 8, 19 zero. An abutment part between the two sides 8, 19 is formed with a communication part 22 communicating the inner and outer circumferences, in a part of circumference, such that the two sides 8, 19 do not abut on each other over the entire circumference. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够通过强压缩来抑制橡胶状弹性材料的填料20的早期浪费的蓄能器1，以提高密封件20的密封功能的储存器1中的密封功能在管道侧的压力降低时，在蓄能器1内部。解决方案：该蓄能器1具有固定在油口5的内部的密封保持件19，保持在密封保持件19的外侧的密封件20以及当压力降低以紧密接触时移动的波纹管盖8 当波纹管盖8在压力下降时移动时，波纹管帽8抵靠密封保持器19，使得两侧8,19之间的间隙为零。两侧8,19之间的邻接部形成有连通部22，该连通部22在圆周的一部分中使内周和外周连通，使得两侧8,19不在整个圆周上彼此抵接。版权所有（C）2004，JPO

46. 发明专利

JP2003262201A ACCUMULATOR 审中-公开
公开(公告)号：JP2003262201A
公开(公告)日：2003-09-19
申请号：JP2002063114
申请日：2002-03-08
申请人： NOK CORP
发明人： KITAHARA TOSHIAKI , SASAKI KENJI
IPC分类号： F15B1/08
摘要： PROBLEM TO BE SOLVED: To provide an accumulator 1 that can prevent effectively the occurrence of an abnormal sound by a pulse wave and the damage by an excessive compression of a bellows 6, and also simplify a structure or a form of a bellows cap 7. SOLUTION: In the accumulator 1 having a working member 5 with the bellows 6 and the bellows cap 7 installed in a housing 2 with a gas end cover 4 and an oil port 12, a chamber 19 for damping the pulse wave is provided on the bellows cap 7, and a height dimension H of a chamber 19 is set so as to stop the compression of the bellows 6 by bringing the chamber 19 into contact with the gas end cover 4 before the bellows 6 is excessively compressed. COPYRIGHT: (C)2003,JPO

47. 发明专利

JP2003156002A ACCUMULATOR 审中-公开
公开(公告)号：JP2003156002A
公开(公告)日：2003-05-30
申请号：JP2001355462
申请日：2001-11-21
申请人： NOK CORP
发明人： KITAHARA TOSHIAKI , SASAKI KENJI , KIMURA RYUJI
IPC分类号： F15B1/08 , F16J15/10
摘要： PROBLEM TO BE SOLVED: To improve sealing property and to reduce load with a plurality of seal parts without increasing man-hours and a mounting space upon mounting a seal. SOLUTION: A seal member 30 disposed on the outer peripheral side of the inner end of a pressure hole C comprises an annular reinforcing plate 31 and an elastic body 32 molded with a rubber-like elastic material integrally with a reinforcing plate 31. The elastic body 32 has a plurality of seal lips 33 directing to a bellows 20 side and a plurality of second seal lips 34 adhered to the inner surface of an outer shell 10, and is fixed by a collar part 352 of a seal holder 35 forced into and engaged with a pressure port 12. When pressure in a pipe decreases to a low pressure not higher than a gas filling pressure, the plurality of seal lips 33 comes into closely contact with a bellows cap 22 of the bellows 20, thereby certainly shutting a pressure chamber A from the pressure hole C and keeping a uniform pressure state of the presence chamber A and a gas chamber B.

48. 发明专利

JP2003120602A PISTON TYPE ACCUMULATOR 审中-公开
公开(公告)号：JP2003120602A
公开(公告)日：2003-04-23
申请号：JP2001315090
申请日：2001-10-12
申请人： NOK CORP
发明人： MOTOYAMA GENJI , SASAKI KENJI
IPC分类号： F15B1/08
摘要： PROBLEM TO BE SOLVED: To provide a structure preventing damage due to galling between an inner circumferential face 11d of a shell 10 and a piston 20 without causing any increase in a cost. SOLUTION: In a seal mounting groove 21 of the piston 20, a seal member 50 constructed of a T-ring and backup rings 60 and 60 axially arranged on both sides of the seal member 50 are held, and the inner circumferential face 60b in each of the backup rings 60 is brought into tight contact with a groove bottom 21a of the seal mounting groove 21, while the outer circumferential face 60c is brought into tight contact with the inner circumferential face 11d of the shell 10 and provided with a required thickness in a axial direction for increasing radial rigidity in comparison with the seal member 50. Consequently, the backup ring 60 is provided with a bearing function to reduce inclination when the piston 20 is moved in the axial direction.

49. 发明专利

JPH06241201A BLADDER FOR ACCUMULATOR 失效
公开(公告)号：JPH06241201A
公开(公告)日：1994-08-30
申请号：JP4579293
申请日：1993-02-10
申请人： NOK CORP
发明人： SASAKI KENJI
IPC分类号： F15B1/08 , F15B1/047
摘要： PURPOSE:To improve durability by decreasing the wall thickness of a bent turning-over part of an elastic material layer provided with a gas shielding layer for dividing the inner space of a shell into a gas chamber and a liquid chamber in a pact of circumferential region in comparson with that in the rest of the region. CONSTITUTION:An elastic member layer 11 in which a gas shielding layer is arranged is attached on the inner peripheral surface of a shell 21 by an attaching member 22, so as to divide the inner space of the shell into a gas chamber 21A and a liquid chamber 21B. A thick-walled elastic attaching part 11a is formed on the inner peripheral surface (the surface positioned on the gas chamber 21A side) of this elastic material layer 11, so as to secure seal in a space toward the inner peripheral surface of the shell 21. Moreover a center part 11A and a peripheral edge part 11B are connected to each other by a bent turning-over part 11C. The wall thickness of the above bent turning- over part is so set that the relationship; t01>=t02>=t03 may be satified when the maximum wall thickness of this bent turning-over part 11C is taken as t01, while the minimum wall thickness is taken as t02 and the wall thickness of the gas shielding layer 12 is taken as t03.

50. 发明专利

JPH03181601A BLADDER FOR ACCUMULATOR 失效
公开(公告)号：JPH03181601A
公开(公告)日：1991-08-07
申请号：JP31965889
申请日：1989-12-08
申请人： NOK CORP
发明人： SASAKI KENJI
IPC分类号： F15B1/08
摘要： PURPOSE:To avoid crack, separation of contact joint, and leakage of liquid or gas in a gas shielding layer, by exposing the end face of fringe part of a gas shielding layer at the end face of fringe part of an elastic material layer, and jointing the end face of a back-up ring to the end face of the fringe part of the elastic material layer. CONSTITUTION:A bladder main body 10A is composed of an elastic material layer 11 such as rubber and a gas shielding layer 12 arranged on the inner circumferential face of the layer 11 by contact jointing or inserting. An elastic fitting part 11a of elastic material such as rubber is provided on the inner circumferential face of fringe part of the gas shielding layer 12, and an elastic fitting part 11b is provided on the fringe part of the elastic material layer 11. A back-up ring 10B of teflon or the like is jointed to the end face of the fringe part of the elastic material layer 11 to insure sealing property and prevent dislocation of the fringe part of the bladder main body 10A, accompanied with expansion or contraction of the elastic material layer 11. Consequently, crack of the gas shielding layer, generation of separation of contact joint, and leakage of liquid or gas can be avoided, and variation of gas pressure with the lapse of time can be restrained.

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