WO2005106255A1 - Hydrospeicher - Google Patents
Hydrospeicher Download PDFInfo
- Publication number
- WO2005106255A1 WO2005106255A1 PCT/EP2005/002458 EP2005002458W WO2005106255A1 WO 2005106255 A1 WO2005106255 A1 WO 2005106255A1 EP 2005002458 W EP2005002458 W EP 2005002458W WO 2005106255 A1 WO2005106255 A1 WO 2005106255A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- hydraulic accumulator
- plate
- accumulator according
- end part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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
- F15B1/106—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
- 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
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- 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
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
- F15B2201/312—Sealings therefor, e.g. piston rings
-
- 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 invention relates to a hydraulic accumulator with a accumulator housing in the form of a tube in which a separating element, preferably a separating piston, which is movable in its axial direction, separates pressure spaces adjoining it on both sides.
- a separating element preferably a separating piston
- Hydraulic accumulators of this type are commercially available and are used in hydraulic systems for various purposes. They are used, among other things, for energy storage, emergency operation, for balancing forces, for damping pressure surges, for damping pulsations, for vehicle suspension, recovery of braking energy and the like. Due to the wide range of possible uses that result in a need for large quantities of hydraulic accumulators, a design is to be aimed at that enables simple and inexpensive production of hydraulic accumulators with safe operating behavior.
- the invention is accordingly based on the object of providing a hydraulic accumulator which is easy to manufacture in terms of production technology with little material expenditure, that is to say lightweight, with correspondingly low manufacturing costs, but is nevertheless characterized by safe operating behavior. According to a first aspect of the invention, this object is achieved by a hydraulic accumulator which has the features of claim 1 in its entirety.
- the end part is formed by a plate which has a deformation in the form of an annular bead which projects into the interior of the tube and is provided on the radially outer flank of its projecting convexity with the annular surfaces which form the contact surfaces.
- a wave-like design of the plate which can be produced simply and efficiently, for example by cold working, leads to a very favorable course of the force flow when the forces which act between the tube wall and plate act at the connection point.
- a particularly favorable use of material results in exemplary embodiments in which the annular bead of the plate is bulged out of the plane of the plate by cold extrusion. While the material thickness of the plate is slightly reduced due to the stretching in the arch area, the material thickness of the plate remains unchanged in planar areas adjacent to the bulge on both sides, so that the full material thickness is advantageously available in areas of the plate which the plate has through holes.
- This can be, for example, a connection opening located in the center of the plate as an access to the adjacent pressure space or fastening holes which are provided in lateral extensions of the plate and form the flange parts.
- FIG. 1 shows a longitudinal section of the exemplary embodiment of the hydraulic accumulator according to the invention in the form of a piston accumulator
- FIG. 2 shows a partial longitudinal section, drawn on a larger scale compared to FIG. 1, of only one end region of the exemplary embodiment, in which the tube forming the storage housing is closed by a cover-like end part
- FIG. 3 shows an end view of the exemplary embodiment drawn on a scale of FIG. 1 , seen on the lid-like end part.
- FIG. 1 which shows an exemplary embodiment of the hydraulic accumulator according to the invention in the form of a piston accumulator
- a cylindrical metal tube forming the main part of the accumulator housing is designated by 1.
- the tube 1 is closed off by an end part 3 which is integral with the tube jacket. This is formed by hot forming the relevant end section of the tube 1, for example by a forming technique known as curling.
- the tube 1 forming the storage housing is closed in a fluid-tight manner by a cover-like end part, which in the present example is a plate 5.
- a piston 9 is displaceable with respect to a longitudinal axis 7 of the housing, which extends around its circumference
- the piston 9 thus forms a movable separating element between pressure spaces 13 and 15 adjoining on both sides.
- the piston 9 has an inner trough 17 which is concentric with the axis 7.
- a compressed gas connection centrally located at the end part 3 of the housing with an opening 18, which is closed by means of a closure part 19, enables the pressure chamber 13 to be filled with a corresponding compressed gas, namely nitrogen gas for hydropneumatic applications.
- the material thickness of the plate 5 is substantially greater than the wall thickness of the tube 1 and is more than twice this wall thickness in the illustrated embodiment.
- the plate 5 is deformed in such a way that a region which bulges out of the plate plane forms an annular bead 23 which is concentric with the longitudinal axis 7 and whose part protruding from the plate plane forms a rounded convexity 25.
- the bulge forming the annular bulge 23 results in an inner flat region 27 surrounded by the annular bulge 23 as well as a flat region 29 radially outside the annular bulge 23 on the plate 5.
- the bulge is designed such that the radius of curvature of the bulge at the transitions to the flat regions 27 and 29 is in each case larger than in the region forming the summit of the annular bead 23.
- connection opening 21 which is concentric with the longitudinal axis 7, is thus in an area in which the material thickness is not reduced by the deformation of the plate, which has proven to be advantageous for the attachment of connection fittings.
- the plate 5 has extensions 31 which form parts of a flange for fastening the hydraulic accumulator, then the fact is that in which the extensions 31 have planes Area 29, the material thickness is unchanged, also of great advantage because the full material cross section is available at the fastening holes 33 of the flange parts.
- connection between the end edge of the tube 1 and the plate 5 takes place on a contact surface of the plate 5, which is located on the radially outer flank 35 of the convexity 25 of the annular bead 23, so that its summit 37 projects into the interior of the tube 1.
- the contact surface on the annular bead 23 has two surface parts which run approximately at right angles to one another, namely an annular surface 39 projecting axially into the interior of the tube 1 and an annular surface 41 having an extension in the radial direction
- This results in a form-fit support of the pipe wall against radial forces and a form-fit support against axial forces on the ring surface 41 for the pipe 1 on the ring surface 39 on the ring bead 23 of the plate 5 5 acting forces results from the thus formed positive connection in connection with the stiffening "corrugation", which represents the annular bead 23, an optimal flow of force, so that high dimensional stability is achieved with low demands on the material thickness.
- FIG. 2 shows at the connection point between tube 1 and plate 5 on the left in the figure, a weld seam connection 43 which is designed as the preferred type of fastening at the transition area of the ring surfaces 39 and 41, the latter therefore at the position on the left in FIG. 2 Junction are not visible.
- the inner wall of the tube 1 at the end edge region has a chamfer 45 which reduces the wall thickness of the tube 1 towards the end edge in some areas. This creates
- the closure of the storage housing on the left in FIG. 1 is formed by an end part 3, which is formed as a one-piece part of the tube 1 from the wall thereof by hot-forming technology, a technology which is known, for example, under the name "rolling"
- the end part 3 is shaped in such a way that a slightly protruding dome 4 with curved flanks 6 is formed in the central region surrounding the longitudinal axis 7.
- the flanks 6 form one on the outside Concavity, which is adjoined by a substantially flat central part which is concentric with the longitudinal axis 7.
- a filling opening 18 for filling the pressure chamber 13 with compressed gas, a closure body 19 being provided at the opening 18.
- the curved shape of the dome 4 acts as a stiffening element on the end part 3, so that the shape of the storage housing is achieved despite the lightweight construction.
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)
- Lubricants (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE502005004121T DE502005004121D1 (de) | 2004-04-16 | 2005-03-09 | Hydrospeicher |
| EP05715853A EP1735537B1 (de) | 2004-04-16 | 2005-03-09 | Hydrospeicher |
| US10/588,821 US20070181199A1 (en) | 2004-04-16 | 2005-03-09 | Hydraulic accumulator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004018456.9 | 2004-04-16 | ||
| DE102004018456A DE102004018456A1 (de) | 2004-04-16 | 2004-04-16 | Hydrospeicher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005106255A1 true WO2005106255A1 (de) | 2005-11-10 |
Family
ID=34961382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/002458 Ceased WO2005106255A1 (de) | 2004-04-16 | 2005-03-09 | Hydrospeicher |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070181199A1 (de) |
| EP (1) | EP1735537B1 (de) |
| AT (1) | ATE395517T1 (de) |
| DE (2) | DE102004018456A1 (de) |
| WO (1) | WO2005106255A1 (de) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100307156A1 (en) | 2009-06-04 | 2010-12-09 | Bollinger Benjamin R | Systems and Methods for Improving Drivetrain Efficiency for Compressed Gas Energy Storage and Recovery Systems |
| US8479505B2 (en) | 2008-04-09 | 2013-07-09 | Sustainx, Inc. | Systems and methods for reducing dead volume in compressed-gas energy storage systems |
| US8474255B2 (en) | 2008-04-09 | 2013-07-02 | Sustainx, Inc. | Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange |
| US8225606B2 (en) | 2008-04-09 | 2012-07-24 | Sustainx, Inc. | Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression |
| US8250863B2 (en) | 2008-04-09 | 2012-08-28 | Sustainx, Inc. | Heat exchange with compressed gas in energy-storage systems |
| US8359856B2 (en) | 2008-04-09 | 2013-01-29 | Sustainx Inc. | Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery |
| US8448433B2 (en) | 2008-04-09 | 2013-05-28 | Sustainx, Inc. | Systems and methods for energy storage and recovery using gas expansion and compression |
| US7958731B2 (en) | 2009-01-20 | 2011-06-14 | Sustainx, Inc. | Systems and methods for combined thermal and compressed gas energy conversion systems |
| US8240140B2 (en) | 2008-04-09 | 2012-08-14 | Sustainx, Inc. | High-efficiency energy-conversion based on fluid expansion and compression |
| US8677744B2 (en) | 2008-04-09 | 2014-03-25 | SustaioX, Inc. | Fluid circulation in energy storage and recovery systems |
| US8037678B2 (en) | 2009-09-11 | 2011-10-18 | Sustainx, Inc. | Energy storage and generation systems and methods using coupled cylinder assemblies |
| EP2280841A2 (de) | 2008-04-09 | 2011-02-09 | Sustainx, Inc. | Systeme und verfahren zur energiespeicherung und & 8209;rückgewinnung unter verwendung von druckgas |
| WO2009152141A2 (en) | 2008-06-09 | 2009-12-17 | Sustainx, Inc. | System and method for rapid isothermal gas expansion and compression for energy storage |
| DE102008061221A1 (de) * | 2008-12-09 | 2010-06-10 | Hydac Technology Gmbh | Hydrospeicher, insbesondere Balgspeicher |
| US7963110B2 (en) | 2009-03-12 | 2011-06-21 | Sustainx, Inc. | Systems and methods for improving drivetrain efficiency for compressed gas energy storage |
| US8104274B2 (en) | 2009-06-04 | 2012-01-31 | Sustainx, Inc. | Increased power in compressed-gas energy storage and recovery |
| WO2011056855A1 (en) | 2009-11-03 | 2011-05-12 | Sustainx, Inc. | Systems and methods for compressed-gas energy storage using coupled cylinder assemblies |
| US8171728B2 (en) | 2010-04-08 | 2012-05-08 | Sustainx, Inc. | High-efficiency liquid heat exchange in compressed-gas energy storage systems |
| US8191362B2 (en) | 2010-04-08 | 2012-06-05 | Sustainx, Inc. | Systems and methods for reducing dead volume in compressed-gas energy storage systems |
| US8234863B2 (en) | 2010-05-14 | 2012-08-07 | Sustainx, Inc. | Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange |
| US8495872B2 (en) | 2010-08-20 | 2013-07-30 | Sustainx, Inc. | Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas |
| US8578708B2 (en) | 2010-11-30 | 2013-11-12 | Sustainx, Inc. | Fluid-flow control in energy storage and recovery systems |
| JP2014522460A (ja) | 2011-05-17 | 2014-09-04 | サステインエックス, インコーポレイテッド | 圧縮空気エネルギー貯蔵システムにおける効率的二相熱移送のためのシステムおよび方法 |
| US20130091836A1 (en) | 2011-10-14 | 2013-04-18 | Sustainx, Inc. | Dead-volume management in compressed-gas energy storage and recovery systems |
| ITBO20120085A1 (it) * | 2012-02-22 | 2013-08-23 | Magneti Marelli Spa | Servocomando idraulico di un cambio servocomandato |
| ITBO20120084A1 (it) * | 2012-02-22 | 2013-08-23 | Magneti Marelli Spa | Servocomando idraulico di un cambio servocomandato |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7113311U (de) * | 1974-11-28 | Maschinenfabrik Hausherr R & Soehne Gmbh | Dichtungsanordnung für Freikolben in hydropneumatischen Druckspeichern | |
| GB1531612A (en) * | 1975-02-24 | 1978-11-08 | Greer Hydraulics Inc | Pressure vessels |
| US4295492A (en) * | 1979-11-13 | 1981-10-20 | Greer Hydraulics, Incorporated | Low cost accumulator device |
| US4351363A (en) * | 1979-03-21 | 1982-09-28 | Robert Bosch Gmbh | Hydro-pneumatic pressure vessel |
| US5365736A (en) * | 1992-03-11 | 1994-11-22 | Jatco Corporation | Accumulator with check stopper |
| DE19616428A1 (de) * | 1996-04-25 | 1997-10-30 | Bosch Gmbh Robert | Hydraulischer Speicher für ein Fahrzeugbremssystem |
| DE10161797C1 (de) * | 2001-12-15 | 2003-07-31 | Hydac Technology Gmbh | Kolbenspeicher |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2170890A (en) * | 1937-04-08 | 1939-08-29 | Link Belt Co | Removable accumulator |
| US2703108A (en) * | 1950-12-04 | 1955-03-01 | Tommy J Mccuistion | Accumulator |
| US3064686A (en) * | 1957-08-23 | 1962-11-20 | Gratzmuller Jean Louis | Hydro-pneumatic accumulators |
| US3148706A (en) * | 1958-09-29 | 1964-09-15 | Mercier Jean | Pressure vessels |
| US2967744A (en) * | 1959-05-06 | 1961-01-10 | Parker Hannifin Corp | Accumulator |
| DE1295935B (de) * | 1964-07-03 | 1969-05-22 | Adam Dipl Ing | Hydrospeicher |
| IT1018513B (it) * | 1972-07-11 | 1977-10-20 | Lowara Spa | Ulteriori perfezionamenti ai serba toi autoclave per impianti idrauli ci di sollevamento |
| JPS58170402U (ja) * | 1982-05-11 | 1983-11-14 | 株式会社ボッシュオートモーティブ システム | アキユムレ−タ |
| US4678010A (en) * | 1985-02-22 | 1987-07-07 | Gene Purvis | Accumulator for airless spraying apparatus |
| DE20103015U1 (de) * | 2001-02-21 | 2001-04-26 | Robert Bosch Gmbh, 70469 Stuttgart | Druckmittelspeicher, insbesondere für eine hydraulische Bremsanlage eines Fahrzeugs |
-
2004
- 2004-04-16 DE DE102004018456A patent/DE102004018456A1/de not_active Withdrawn
-
2005
- 2005-03-09 WO PCT/EP2005/002458 patent/WO2005106255A1/de not_active Ceased
- 2005-03-09 US US10/588,821 patent/US20070181199A1/en not_active Abandoned
- 2005-03-09 EP EP05715853A patent/EP1735537B1/de not_active Expired - Lifetime
- 2005-03-09 DE DE502005004121T patent/DE502005004121D1/de not_active Expired - Lifetime
- 2005-03-09 AT AT05715853T patent/ATE395517T1/de not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7113311U (de) * | 1974-11-28 | Maschinenfabrik Hausherr R & Soehne Gmbh | Dichtungsanordnung für Freikolben in hydropneumatischen Druckspeichern | |
| GB1531612A (en) * | 1975-02-24 | 1978-11-08 | Greer Hydraulics Inc | Pressure vessels |
| US4351363A (en) * | 1979-03-21 | 1982-09-28 | Robert Bosch Gmbh | Hydro-pneumatic pressure vessel |
| US4295492A (en) * | 1979-11-13 | 1981-10-20 | Greer Hydraulics, Incorporated | Low cost accumulator device |
| US5365736A (en) * | 1992-03-11 | 1994-11-22 | Jatco Corporation | Accumulator with check stopper |
| DE19616428A1 (de) * | 1996-04-25 | 1997-10-30 | Bosch Gmbh Robert | Hydraulischer Speicher für ein Fahrzeugbremssystem |
| DE10161797C1 (de) * | 2001-12-15 | 2003-07-31 | Hydac Technology Gmbh | Kolbenspeicher |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004018456A1 (de) | 2005-11-10 |
| US20070181199A1 (en) | 2007-08-09 |
| EP1735537B1 (de) | 2008-05-14 |
| ATE395517T1 (de) | 2008-05-15 |
| EP1735537A1 (de) | 2006-12-27 |
| DE502005004121D1 (de) | 2008-06-26 |
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