WO2005052381A1 - アキュムレータ - Google Patents
アキュムレータ Download PDFInfo
- Publication number
- WO2005052381A1 WO2005052381A1 PCT/JP2004/017372 JP2004017372W WO2005052381A1 WO 2005052381 A1 WO2005052381 A1 WO 2005052381A1 JP 2004017372 W JP2004017372 W JP 2004017372W WO 2005052381 A1 WO2005052381 A1 WO 2005052381A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- end cover
- accumulator
- pressure
- gas end
- gas
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/106—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means characterised by the way housing components are assembled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/205—Accumulator cushioning means using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/41—Liquid ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
Definitions
- the present invention relates to an accumulator used as a pressure accumulator or a pulsation damping device or the like.
- the accumulator of the present invention is used in a hydraulic system of a vehicle brake system and various industrial hydraulic systems.
- an accumulator in which a pressure sealing chamber and a pressure inflow chamber are formed by an actuating member including an expandable metal bellows for pressure accumulation or pulsation damping is adopted. It is done.
- This accumulator damps and absorbs vibration by balancing the pressure in the pressure containment chamber, which is determined by the expansion and contraction of the metal bellows, and the pressure of the pressure inflow chamber, which is determined by the inflow of pressure fluid from the system side.
- a gas end cover is installed to hold the high pressure gas sealed in the sealing chamber and the liquid sealed in the pressure inflow chamber, and close the open end of the bottomed shell to fix the metal bellows.
- Gas end cover 104 which is a part of components of housing 102 for achieving weight reduction of accumulator 101 which is a vehicle part is also required.
- the thickness of the peripheral portion 105 of the gas end cover 104 is thin, so that the stepped recess 111 joined to the shell 103. It is necessary to bend the end of the peripheral portion 105 largely to the inner diameter side to secure the fixing portion 108 for fixing the metal bellows 107. For this reason, the dead space 109 is formed on the inner diameter side of the curved portion, and the volume adjustment There is a problem that the storage space 110 becomes large and the entire accumulator 101 becomes large in the axial direction and the weight becomes heavy.
- the gas end cover 104 has a curved shape. As the number of processing steps increases, there is also a problem.
- a stepped recess 111 is formed in the curved portion, and the stepped recess 111 and the end of the shell 103 are formed.
- carbon dioxide laser welding is carried out and the gas end cover 104 and the shell 103 are joined at the welding portion 106, so that it has a hatching structure that does not scatter inside, but the peripheral portion is curved. If the thickness W of the application part is thin and there is a limit in securing the weld penetration depth, the problem is also present.
- JP-A 2002-122101 in order to secure the strength in a thin state of the gas end cover, it is proposed that the cross-sectional central portion be convex toward the pressure sealing chamber and be concave at the peripheral edge.
- the peripheral portion is concave on the side of the pressure sealing chamber, dead space is present, and the volume control spacer is made smaller to facilitate the processing process of the gas end cover. , could not be effective.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-122101
- a pressure sealing chamber and a pressure inflow chamber are formed by a gas end cover and a working member including a metal bellows provided in a bottomed cylindrical shell housing.
- the dead space is eliminated to reduce the volume of the volume adjustment spacer, and the shape of the gas end cover is simplified to reduce the calorie process, and the wall thickness of the application portion is increased. Aims to provide an accumulator with improved welding penetration depth allowance.
- the accumulator according to claim 1 of the present invention is pressure sealed by an operating member including a gas end force bar and a metal bellows provided in a bottomed cylindrical shell force housing.
- the cross-sectional inner contour of the peripheral portion of the gas end cover is an elliptical shape that is concave toward the pressure sealing chamber, and a dead space is formed. It is characterized by
- a pressure injection port communicating with the pressure sealing chamber is provided on the inner peripheral side of the central portion of the gas end cover. It is characterized in that a hexagonal nut-shaped portion integrated with the gas end cover is provided.
- the accumulator according to claim 1 of the present invention having the above configuration has an elliptical shape in which the cross-sectional inner contour of the peripheral portion of the gas end cover is concave on the pressure sealing side, and a dead space is formed. Therefore, the volume of the volume control spacer can be reduced, the entire accumulator can be reduced in the axial direction, and the total weight can be reduced.
- the cross-sectional inner contour of the peripheral portion is an elliptical shape that is concave on the pressure sealing side
- the end portion of the peripheral portion is formed to form a fixing portion for fixing metal bellows having a thick end portion. Since it is not necessary to adopt a shape for curving to the inner diameter side, processing of the gas end cover becomes easy, and the number of processing steps can be reduced.
- the cross-sectional inner contour of the peripheral portion is an elliptical shape that is concave on the pressure sealing side, even if a stepped recess is formed to join with the end face of the shell whose end has a large thickness, It can be thickened, and sufficient weld penetration depth can be secured when welding with the shell
- the hexagonal nut shape which is a portion to which a tool such as a spanner is to be applied for screwing the accumulator to the pipe, is integrated with the gas end cover, the number of parts is reduced. As a result, the process of fixing the hexagonal nut can be omitted and the process of assembling the housing can be simplified.
- FIG. 1 is a cross-sectional view of an accumulator according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view at each production stage of the gas end cover of FIG.
- FIG. 3 is a cross-sectional view of an accumulator according to a conventional example.
- FIG. 4 It is an expanded sectional view of the A section in FIG.
- the accumulator 1 is a metal bellows type accumulator, and is configured as follows.
- the gas end cover 4 is fixed to the open end of the bottomed cylindrical shell 3 and the housing 2 is provided.
- Actuating member 5 provided with rose 6 and bellows cap 7 is accommodated !, metal bellows 6 is fixed to gas end cover 4 at one end and to bellows cap 7 at the other end.
- the inside of the housing is divided into the metal bellows 6 and the pressure sealing chamber 8 inside the bellows cap 7 and the pressure inflow chamber 9 outside.
- a cylindrical mounting is provided on the outer periphery of the end wall 11 of the shell 3 that constitutes a part of the housing 2 with a screw 12 for connecting the accumulator 1 to pressure piping etc. on the hydraulic system side (not shown).
- a member having the portion 13 is fixed, and a fluid inlet 14 for introducing pressure fluid on the system side into the pressure inflow chamber 9 is provided on the inner peripheral side of the mounting portion 13.
- An annular sliding member 23 is mounted on the outer peripheral side of the other end of the metal bellows 6 fixed to the bellows cap 7 or on the outer peripheral side of the bellows cap 7. At the time of operation, when the bellows cap 7 is moved, the outer peripheral side of the sliding member 23 slides on the inner peripheral side of the shell 3.
- the bellows cap 7 moves in parallel to the inner peripheral surface of the shell 3 and the metal bellows 6 expands and contracts in parallel to the inner peripheral surface of the shell 3. And metal bellows 6 can be prevented from being absorbed into the inner peripheral surface of shell 3. It should be noted that there is no figure for preventing the pressure inflow chamber 9 from being divided into the space 21 on the metal bellows side (upper side in the figure) and the space 22 on the fluid inlet side by the sliding member 23.
- the sliding member 23 is provided.
- the cross-sectional inner contour 32 of the peripheral portion 31 has an elliptical shape, and a straight line connecting one end of the metal bellows 6 on both sides
- a spacer 41 for adjusting the volume is inserted.
- the thickness of the peripheral portion 31 is a shape in which the force on the inner peripheral side is gradually thickened toward the outer peripheral side, and the stepped concave portion 33 is formed on the outer peripheral side of the peripheral end surface 34 and the end surface on the open end side of the shell 3 35 And fixed by CO2 laser welding.
- a fixing portion 30 for fixing one end of the metal bellows 6 is provided on the inner peripheral side of the peripheral end face 34.
- the central portion 38 is provided on the inner peripheral side with a pressure inlet 36 for injecting a gas into the pressure sealing chamber 8, and the gas is supplied to the pressure sealing chamber 8 at a predetermined pressure through the pressure inlet 36. After injection, secure pressure inlet 36 with plug 37 for occlusion.
- a hexagonal nut shaped portion suitable for applying a tool when rotating and fixing the screw portion 12 provided on the outer periphery of the mounting portion 13 of the accumulator 1 on the outer periphery of the central portion 38. 39 are provided. Therefore, the hexagonal nut shaped part 39 is formed integrally with the gas end cover 4.
- the method shown in FIG. 2 is performed. First, as shown in (1), a plate-like member that fits the size of the gas end cover is formed by pressing. Next, in a step called “shearing out” shown in (2), pressing is performed to form a hexagonal nut shape at the center of the plate-like member. At the same time, a pressure inlet leading to the pressure chamber is also provided. Next, in a step called “sliding” shown in (3), the inner contour of the peripheral portion is made to be elliptical with respect to the member in which the hexagonal nut shape is formed. The press work is performed so that the thickness on the inner circumferential side also gradually increases in the direction toward the outer circumferential side.
- bellows 6 As the metal bellows 6, it is also possible to use bellows of other materials depending on the specifications and applications of the force accumulator 1 in which electrodeposited bellows, molded bellows, or welded bellows etc. are used. it can.
- a gas used for the pressure sealing chamber 8 nitrogen gas is suitable, but it may be any other gas.
- the accumulator 1 having the above configuration has an elliptical shape in which the cross-sectional inner contour 32 of the peripheral portion 31 of the gas cover 4 which constitutes a part of the housing 2 is concave toward the pressure sealing chamber 8. Since the dead space is not formed and the volume control spacer 41 can be made smaller, and the end of the peripheral portion 31 is sufficiently thick, a step recess 33 for coupling with the shell 3 is formed in the end surface 34 However, since the fixing portion 30 for fixing the metal bellows 6 can be further formed, there is no need to curve the end of the gas end cover 4 to the inner peripheral side to form the fixing portion 30. The gas end cover 4 can be easily processed.
- the wall thickness of the peripheral portion can be increased because the wall thickness of the peripheral end is sufficiently thick. The welding penetration depth when welding 3 and the gas end cover 4 can be secured.
- the hexagonal nut-shaped portion 39 is provided as a body at the central portion 38 of the gas end cover 4, the hexagonal nut shaped portion 39 is fixed to the inlet 36 formed at the central portion 38. There is no need to fix the parts, the number of parts can be reduced and the work process can be simplified.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/580,522 US7318452B2 (en) | 2003-11-26 | 2004-11-24 | Accumulator |
CA002546466A CA2546466A1 (en) | 2003-11-26 | 2004-11-24 | Accumulator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003395467A JP2005155785A (ja) | 2003-11-26 | 2003-11-26 | アキュムレータ |
JP2003-395467 | 2003-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005052381A1 true WO2005052381A1 (ja) | 2005-06-09 |
Family
ID=34631486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/017372 WO2005052381A1 (ja) | 2003-11-26 | 2004-11-24 | アキュムレータ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7318452B2 (ja) |
JP (1) | JP2005155785A (ja) |
CA (1) | CA2546466A1 (ja) |
WO (1) | WO2005052381A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8996420B2 (en) | 2003-11-21 | 2015-03-31 | Intel Corporation | System and method for caching data |
CN109983237A (zh) * | 2016-12-02 | 2019-07-05 | 伊格尔工业股份有限公司 | 蓄能器 |
CN112985236A (zh) * | 2019-12-17 | 2021-06-18 | 中核建中核燃料元件有限公司 | 一种无需量具快速目视检验焊缝熔深的方法 |
US11347785B2 (en) | 2005-08-05 | 2022-05-31 | Intel Corporation | System and method for automatically managing media content |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4247612B2 (ja) * | 2003-09-25 | 2009-04-02 | Nok株式会社 | アキュムレータおよびアキュムレータ用スペーサー |
DE102004043352A1 (de) * | 2004-09-08 | 2006-03-23 | Hydac Technology Gmbh | Hydrospeicher |
JP4896420B2 (ja) * | 2005-03-30 | 2012-03-14 | 株式会社 日立ディスプレイズ | 表示装置 |
JP4853292B2 (ja) * | 2007-01-10 | 2012-01-11 | 国産電機株式会社 | エンジンの燃料噴射・点火制御方法及び燃料噴射・点火制御装置 |
JP4905738B2 (ja) * | 2007-10-10 | 2012-03-28 | Nok株式会社 | アキュムレータ |
US8114299B2 (en) * | 2008-02-28 | 2012-02-14 | Cummins Filtration Ip, Inc. | Filter with flow surge protection and method of protecting filter from flow surge |
WO2010040040A1 (en) * | 2008-10-03 | 2010-04-08 | Eaton Corporation | Hydraulic accumulator and method of manufacture |
JP5474333B2 (ja) * | 2008-11-05 | 2014-04-16 | イーグル工業株式会社 | アキュムレータ |
DE102008061221A1 (de) * | 2008-12-09 | 2010-06-10 | Hydac Technology Gmbh | Hydrospeicher, insbesondere Balgspeicher |
DE102009060852A1 (de) * | 2009-12-30 | 2011-07-07 | HYDAC Technology GmbH, 66280 | Hydrospeicher, insbesondere Pulsationsdämpfer |
DE102010026092A1 (de) * | 2010-07-05 | 2012-01-05 | Robert Bosch Gmbh | Druckspeichervorrichtung zur Verbindung mit einer hydraulischen Anlage |
JP2013539845A (ja) * | 2010-09-22 | 2013-10-28 | リモ−ライド インコーポレイテッド | 超軽量で小型のアキュムレータ |
DE102011117752A1 (de) * | 2011-11-05 | 2013-05-08 | Hydac Technology Gmbh | Hydrospeicher in Form eines Balgspeichers |
EP2860406B1 (en) * | 2012-06-11 | 2020-01-15 | Eagle Industry Co., Ltd. | Accumulator |
DE102012012971B4 (de) | 2012-06-29 | 2024-08-08 | Zf Active Safety Gmbh | Dämpfungselement für eine Kraftfahrzeug-Hydraulikanlage |
US9416909B2 (en) * | 2013-07-29 | 2016-08-16 | Eagle Industry Co., Ltd. | Accumulator |
JP6803271B2 (ja) | 2017-03-13 | 2020-12-23 | 日本発條株式会社 | アキュムレータ |
JP2023103129A (ja) | 2022-01-13 | 2023-07-26 | 日本発條株式会社 | 製造方法およびアキュムレータの外装体 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000170703A (ja) * | 1998-09-29 | 2000-06-20 | Nok Corp | アキュムレ―タ |
JP2000186767A (ja) * | 1998-10-15 | 2000-07-04 | Nok Corp | 端面シ―ル |
JP2003074503A (ja) * | 2001-09-04 | 2003-03-12 | Nok Corp | アキュムレータ |
DE10207248A1 (de) * | 2001-10-16 | 2003-04-17 | Continental Teves Ag & Co Ohg | Druckmittelspeicher |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3195576A (en) * | 1961-06-27 | 1965-07-20 | Mercier Jean | Pressure vessels |
US2460121A (en) * | 1944-07-10 | 1949-01-25 | Walter Hammer Arrester Corp | Water-hammer arrester |
US4213545A (en) * | 1978-09-20 | 1980-07-22 | Textron, Inc. | Expanding bellows for expulsion tank |
US5133387A (en) * | 1990-09-20 | 1992-07-28 | The Aro Corporation | Fluid pulsation dampener having spiral grooved bellows |
JP2002276604A (ja) * | 2000-08-09 | 2002-09-25 | Nok Corp | アキュムレータ |
JP2002122101A (ja) | 2000-10-11 | 2002-04-26 | Nhk Spring Co Ltd | アキュムレータ |
JP2005505731A (ja) * | 2001-10-16 | 2005-02-24 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | 圧力媒体アキュムレータ |
-
2003
- 2003-11-26 JP JP2003395467A patent/JP2005155785A/ja active Pending
-
2004
- 2004-11-24 US US10/580,522 patent/US7318452B2/en not_active Expired - Fee Related
- 2004-11-24 WO PCT/JP2004/017372 patent/WO2005052381A1/ja active Application Filing
- 2004-11-24 CA CA002546466A patent/CA2546466A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000170703A (ja) * | 1998-09-29 | 2000-06-20 | Nok Corp | アキュムレ―タ |
JP2000186767A (ja) * | 1998-10-15 | 2000-07-04 | Nok Corp | 端面シ―ル |
JP2003074503A (ja) * | 2001-09-04 | 2003-03-12 | Nok Corp | アキュムレータ |
DE10207248A1 (de) * | 2001-10-16 | 2003-04-17 | Continental Teves Ag & Co Ohg | Druckmittelspeicher |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8996420B2 (en) | 2003-11-21 | 2015-03-31 | Intel Corporation | System and method for caching data |
US10084836B2 (en) | 2003-11-21 | 2018-09-25 | Intel Corporation | System and method for caching data |
US10084837B2 (en) | 2003-11-21 | 2018-09-25 | Intel Corporation | System and method for caching data |
US10104145B2 (en) | 2003-11-21 | 2018-10-16 | Intel Corporation | System and method for caching data |
US11347785B2 (en) | 2005-08-05 | 2022-05-31 | Intel Corporation | System and method for automatically managing media content |
US11544313B2 (en) | 2005-08-05 | 2023-01-03 | Intel Corporation | System and method for transferring playlists |
CN109983237A (zh) * | 2016-12-02 | 2019-07-05 | 伊格尔工业股份有限公司 | 蓄能器 |
CN109983237B (zh) * | 2016-12-02 | 2020-12-29 | 伊格尔工业股份有限公司 | 蓄能器 |
US10907657B2 (en) | 2016-12-02 | 2021-02-02 | Eagle Industry Co., Ltd. | Accumulator |
CN112985236A (zh) * | 2019-12-17 | 2021-06-18 | 中核建中核燃料元件有限公司 | 一种无需量具快速目视检验焊缝熔深的方法 |
Also Published As
Publication number | Publication date |
---|---|
CA2546466A1 (en) | 2005-06-09 |
US7318452B2 (en) | 2008-01-15 |
JP2005155785A (ja) | 2005-06-16 |
US20070102052A1 (en) | 2007-05-10 |
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