• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a cylinder unit (Z) of a high-pressure pump for a fluid, in particular for water with a max. Pressure greater than 2000 bar, essentially comprising a cylinder (1) formed by a shrink connection of at least two concentric tubular components (11, 12) with grooves on the connection surface, which cylinder is provided with a flange part (2) with a sealing system (3 ) in which a plunger (P) is axially reciprocable and on the other hand releasably connected to a valve body (6). In order to achieve a disadvantageous displacement of the inner bushing with changing, mechanical stress during long-term operation and optimum functioning of the pump, according to the invention, in the cylinder unit (Z) the bearing bush (31) of the sealing system (3) and the radially outermost component (11) abut the cylinder (1) on the flange part (2) and intervening form a gap (4) in which a cocked, plate-shaped spring means (5) distally on the outer component (11) of the cylinder (1) and proximally on the outside of the bearing bush ( 31) to the flange part (2) is executed, supported and opposite the tubular components (11, 12) of the cylinder (1) in the region of the abutment surface (14) on the valve body (6) has a metallic connection (7), in particular a welded connection, exhibit.
    公开号:AT512043A4
    申请号:T280/2012
    申请日:2012-03-05
    公开日:2013-05-15
    发明作者:Rene Dipl Ing Stuehlinger；Franz Ing Trieb
    申请人:Bhdt Gmbh；
    IPC主号:
    专利说明:

    «« ·· »♦♦ ·
    High pressure device for liquid media
    The invention relates to a high-pressure device for liquid media. In particular, the invention relates to a cylinder unit of a
    High-pressure pump for a fluid having a pressure of greater than 2000 bar, comprising a cylinder formed by shrink connection of at least two concentric tubular components, which on the one hand with a flange with a sealing system in which a plunger axially reciprocally movable and on the other hand with 10 a valve body is releasably connected.
    Components of high-pressure devices, in particular a wall of a cylinder of high-pressure pumps, are exposed in operation due to an internal pressure of over 2000 bar considerable tensile stresses, which may be unsteady nature 15 or pulsating effect.
    In this case, the tensile stresses can approach the yield strength of the materials in sections of the cylinder wall, but at the most cause long-term flow of the material, which constantly decreases at a given stress in logarithmic time scales.
    It is known in the art to provide tubular components for high internal pressures with concentric, thermally shrunk parts or reinforcing fluid-carrying tubes with shrunk-on outer components or outer tubes. 25
    By means of such, of a plurality of concentric, formed by a shrinking tube body, it is possible to form the stresses in the parts of the pipe wall for a high-pressure operation such that over the cross section as possible equal material loads occur or that the Zugspannungsspitzen 30 in the part, the one could cause plastic deformation of the material avoided.
    Cylinder units or green bodies, produced from at least two, formed by a shrinkage of an outer part of the composite, however, have less than ··· «··· φ φ · · · · · φ · · ♦ · ·« V · «· i φ» t Another disadvantage is that the inner component in the tube assembly can be axially displaced and / or stretched in the case of swelling or possibly alternating loading. This can lead to problems in the system of sealing the high-pressure fluid in the flange region of the plunger device and / or in the valve body connection region.
    Here, the invention seeks to remedy the deficiency in the prior art and has set itself the goal of creating a generic cylinder unit of a high-pressure pump of the type mentioned, which in heavy continuous operation a tightness of a cylinder unit with a flange in the plunger area and such in the field ensures the valve body.
    This object is achieved according to the invention in a cylinder unit essentially comprising a cylinder formed by a shrink connection of at least two concentric tubular components with grooves on the connecting surface, which on the one hand with a flange with a sealing system in which a plunger axially back and forth movable and on the other hand releasably connected to a valve body, in which cylinder unit the bearing bush of the sealing system and the radially outermost component of the cylinder abut the flange 20 and form a gap in between, in which a taut, plate-shaped spring means distal to the outer component of the cylinder and proximally the outside of the bearing bush executed to the flange, is supported and axially opposite the tubular components of the cylinder in the region of the contact surface of the valve body, a metallic connection 25, in particular a welded joint, aufwei sen, reached.
    In a preferred embodiment of the invention, the grooves are formed on the connecting surface of the tubular components in cross-section substantially semicircular with a depth up to 2 mm. 30
    In the following, the innovation based on a drawing, which represents only one embodiment of the invention, will be explained in more detail.
    It shows in Fig. 1, a cylinder unit in a high-pressure pump. 2
    To facilitate the assignment of the parts and components in the drawing of a cylinder unit according to the invention, the following reference number serve: Z cylinder unit 1 cylinder 5 11 outer component of the cylinder 12 inner component of the cylinder 14 abutment surface on the valve body 15 grooves on the connecting surface of the cylinder component 2 flange 10 3 sealing system for Plunger 31 Bearing bush 4 Gap 5 Spring means 6 Valve body 15 7 Metallic (welded) connection
    From Fiq. In principle, FIG. 1 shows a cylinder unit Z of a high-pressure pump, which in the axial direction is detachably connected on the one hand to a sealing system 3 for a plunger P according to EP 0 505 352 B1 and / or EP 1 845 290 B1 and on the other hand to a valve body 6.
    A cylinder unit 1 according to the invention is formed with an inner component 12 and at least one outer component 11 shrunk on the latter, grooves 15 being formed on the connecting surface (s) of the tubular components 12, 11 through recesses of one of the components ,
    A sealing system 3 for a plunger P has, in a manner known per se, a bearing bush 31 which is supported in the axial direction by a flange part 2. The outermost component 11 of the cylinder 1 is likewise supported in the outer region on the flange part 2 and has a recess in the radial direction as far as the bearing bush 31.
    A spring means 5 in the recess, in the illustration of FIG. 1, a plate spring 5, distally supported on the outer component 11 of the cylinder 1 and 3 acted upon proximally by biasing the outside of the bearing bush 31, which in turn is held axially by the flange 2 ,
    Between spring means 5 and the (the) inner component (s) 12 of the cylinder 1, a gap 4 is directed directed towards the valve body 6, which allows an axial displacement of the same up to 0.95 mm and so at best ensures a tightness of the connection.
    Axially opposite to the sealing system 3 of a plunger P, in the region of a valve body 6 of the cylinder 1, its components 11,12 are metallically connected or welded together and lie with their machined end faces 14 sealingly against a counter surface on the valve body 6.
    To hinder or prevent a displacement of the components 11, 12 of a cylinder 1 of a high-pressure pump, it has been found to be advantageous if the grooves 15 in the region of the connection surface are formed in a substantially semicircular cross-section with a depth of up to 2 mm and optionally spiral in the axial direction. 4
    权利要求:
    Claims (2)
    [1]
    * * Ft * ftft * ft * ftft ftftft * ft * ft * v * ft * ft * ft ft ft ftft * Claims 1. Cylinder unit (Z) of a high-pressure pump for a fluid, in particular for water with a max. Pressure of greater than 2000 bar, essentially comprising a 5, by a shrink connection of at least two concentric tubular components (11,12) with grooves (15) formed on the connecting surface cylinder (1) which on the one hand with a flange (2) a sealing system (3) in which a plunger (P) axially reciprocally movable and on the other hand releasably connected to a valve body (6), wherein 10 cylinder unit (Z), the bearing bush (31) of the sealing system (3) and the radially outermost component (11) of the cylinder (1) abut against the flange part (2) and form interspaced a gap (4) in which a tensioned, plate-shaped spring means (5) distally on the outer component (11) of the cylinder (1) and Executed on the outside of the bearing bush (31) to the flange part (2) executed, supported 15 and axially opposite the tubular components (11,12) of the cylinder (1) in the region of the abutment surface (14) to the valve body (6). a metallic connection (7), in particular a welded connection.
    [2]
    2. The cylinder unit (Z) according to claim 1, wherein the grooves (15) on the connecting surface (s) of the tubular components (11, 12) are formed in cross-section substantially semicircular with a depth of up to 2 mm. 5
    类似技术:
    公开号 | 公开日 | 专利标题
    EP1411236A2|2004-04-21|Device for damping of pressure pulsations in a fluid system, especially in a fuel system of an internal combustion engine
    EP1914465B1|2009-04-22|Flange connection for pipes
    EP2002121B1|2010-10-13|Piston pump for thick matter
    DE202008001458U1|2008-03-27|High pressure valve assembly
    EP2636901B1|2015-07-01|High pressure device for liquid media
    DE102011089224A1|2013-06-20|Piston pump for a vehicle brake system
    EP3009680A1|2016-04-20|Multi-stage centrifugal pump
    EP1635094B1|2008-03-26|Valve
    DE102009036663B4|2014-05-15|Hydroforming tool and a method for operating the same
    DE2005339C3|1978-06-01|Hand piston pump
    EP2464868B1|2019-04-17|Diaphragm machine
    WO2014056724A1|2014-04-17|Piston membrane pump
    DE1291204B|1969-03-20|Sealing arrangement on the bearing bodies of a gear pump
    EP2556252A1|2013-02-13|Annular seal element
    DE102013220807A1|2014-11-27|Pump unit for a high-pressure pump and low-pressure damper
    DE1921876C3|1974-04-18|Adjustment device for the sealing devices of a gate valve
    DE3631408A1|1988-03-17|AXIAL PISTON PUMP
    DE102016002263A1|2017-08-31|Conveying device for conveying a flowable medium
    DE202006011928U1|2007-09-13|Hose diaphragm pump for supplying fluid, has transducer drive for operating pressure transducer that is connected with annular space under formation of closed pressure space, where drive is designed as hydraulic piston drive
    DE102011001378A1|2012-09-20|Piston-cylinder unit for a piston pump, in particular for high performance liquid chromatography
    EP3029334B1|2021-07-07|Axially split pump
    DE102008002170A1|2009-12-10|High-pressure pump i.e. piston pump, for common-rail injection system of internal combustion engine, has guide piece and/or head with flange-like projection to form chamber areas such that pressure lies at peripheral surface of projection
    DE202011109048U1|2012-01-27|New pressure intensifier for highest pressures
    DE2846172C2|1982-03-11|Non-contact seal for piston pumps, in particular plunger piston pumps
    DE102008014340B4|2014-06-26|Barrel Follower pump
    同族专利:
    公开号 | 公开日
    CN103307051B|2016-01-06|
    RU2527583C1|2014-09-10|
    US9429019B2|2016-08-30|
    AT512043B1|2013-05-15|
    CN103307051A|2013-09-18|
    RU2013109430A|2014-09-10|
    US20130228068A1|2013-09-05|
    EP2636901B1|2015-07-01|
    EP2636901A1|2013-09-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4717317A|1985-02-05|1988-01-05|Sulzer Brothers Limited|Reciprocating pump|
    EP0551590A1|1992-01-11|1993-07-21|Paul Hammelmann|High-pressure plunger pump, working preferably at pressures above 2000 bars|
    WO1999014500A1|1997-09-18|1999-03-25|Flow International Corporation|Biased seal assembly for high pressure fluid pump|
    US6231323B1|1999-01-15|2001-05-15|Jetstream Of Houston, Inc.|High pressure reciprocating pump|
    US2234142A|1937-07-27|1941-03-04|Janney Cylinder Company|Pump liner|
    US3129948A|1961-11-02|1964-04-21|Menasco Mfg Company|Packing gland|
    DE1528384C3|1965-09-14|1976-01-08|Alfa-Laval Industrietechnik Gmbh, 2056 Glinde|Pump piston support|
    US3396711A|1967-06-20|1968-08-13|Caterpillar Tractor Co|Spacer deck for engine cylinder block|
    DE3264420D1|1981-08-05|1985-08-01|Ver Edelstahlwerke Ag|Seal for sealing high-pressure devices|
    AT400973B|1982-11-26|1996-05-28|Boehler Hochdrucktech Gmbh|DEVICE FOR SEALING OSCILLATING MOVING PLUNGERS OR PISTON OF HIGH PRESSURE PUMPS OR ROTATING SHAFTS OF HIGH PRESSURE APPARATUS|
    IT1191732B|1986-04-14|1988-03-23|Pirelli Cavi Spa|METHOD TO JOIN THE ENDS OF TWO ELONGATED ELEMENTS PROVIDED WITH PERIPHERAL GROOVES AND JUNCTION SO OBTAINED|
    DE3709611C2|1987-03-24|1991-05-16|Paul 4740 Oelde De Hammelmann|
    US4936197A|1988-10-12|1990-06-26|C. E. Conover & Co., Inc.|Dynamic seal construction|
    AT396889B|1991-03-21|1993-12-27|Boehler Hochdrucktech Gmbh|ARRANGEMENT FOR SEALING PLUNGERS OF HIGH PRESSURE DEVICES|
    DE4225350C2|1992-07-31|2003-05-15|Bosch Gmbh Robert|Fuel injection pump for internal combustion engines|
    US5493954A|1994-11-18|1996-02-27|Flow International Corporation|Self-venting seal assembly|
    US6113304A|1997-09-18|2000-09-05|Flow International Corporation|Coupling for high pressure fluid pump assembly|
    US6886832B2|2000-12-22|2005-05-03|Nlb Corp.|High pressure fluid cylinder system|
    US7568424B2|2002-01-02|2009-08-04|Flow International Corporation|Method and apparatus for sealing an ultrahigh-pressure fluid system|
    US20050249615A1|2002-06-14|2005-11-10|Jetstream Of Houston, Llp|High pressure reciprocating pump|
    US7523694B2|2004-12-13|2009-04-28|National-Oilwell, L.P.|Cylinder liner preload system|
    CN100587252C|2005-09-29|2010-02-03|株式会社电装|Fluid pump having plunger and method of monoblock casting for housing of the same|
    PT1845290E|2006-04-14|2009-08-13|Bhdt Gmbh|Seal in high pressure facilities|
    CA2657348C|2006-07-11|2015-06-16|Bernhard Frey|Cylinder piston arrangement for a fluid pump or a fluid engine|
    EP2275160A1|2009-07-13|2011-01-19|Boehringer Ingelheim International Gmbh|High pressure chamber|
    DE102009056919A1|2009-12-03|2011-06-09|Mahle International Gmbh|Cylinder liner|DE102014118269A1|2014-12-10|2016-06-16|Knorr-Bremse Systeme für Nutzfahrzeuge GmbH|Housing with sealed cylindrical insert|
    US20160298614A1|2015-04-07|2016-10-13|Waterjet Systems International, Inc.|High-pressure cylinder assembly for waterjet intensifier pumps, and related methods|
    AT521618B1|2018-10-10|2020-03-15|Bft Gmbh|Hydraulic pressure intensifier and method for producing an axial compressive stress in the high pressure cylinder|
    法律状态:
    2021-03-15| PC| Change of the owner|Owner name: BHDT GMBH, AT Effective date: 20210118 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA280/2012A|AT512043B1|2012-03-05|2012-03-05|High pressure device for liquid media|ATA280/2012A| AT512043B1|2012-03-05|2012-03-05|High pressure device for liquid media|
    EP13156563.2A| EP2636901B1|2012-03-05|2013-02-25|High pressure device for liquid media|
    RU2013109430/06A| RU2527583C1|2012-03-05|2013-03-04|High-pressure fluid pump|
    US13/784,278| US9429019B2|2012-03-05|2013-03-04|High pressure device for fluid media|
    CN201310069447.XA| CN103307051B|2012-03-05|2013-03-05|For the high-pressure installation of liquid medium|
    [返回顶部]