EP2220380A1 - Hydraulische ventilvorrichtung - Google Patents
Hydraulische ventilvorrichtungInfo
- Publication number
- EP2220380A1 EP2220380A1 EP08850047A EP08850047A EP2220380A1 EP 2220380 A1 EP2220380 A1 EP 2220380A1 EP 08850047 A EP08850047 A EP 08850047A EP 08850047 A EP08850047 A EP 08850047A EP 2220380 A1 EP2220380 A1 EP 2220380A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- load
- valve device
- control
- connection
- sensing
- 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.)
- Granted
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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86582—Pilot-actuated
- Y10T137/86614—Electric
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86622—Motor-operated
- Y10T137/8663—Fluid motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/8667—Reciprocating valve
- Y10T137/86694—Piston valve
- Y10T137/8671—With annular passage [e.g., spool]
Definitions
- the solution according to the invention also constructs a short construction, so that all relevant switching and control positions for the hydraulic valve devices can be realized in a small installation space.
- the control device can also assume a so-called floating position, without there being any loss of resolution in the lowering and lifting region relative to the working or utility connections A, B.
- the proportional range in lifting and lowering is fully maintained, the housing length is still kept short in length due to the special design of the control device, to which the asymmetric design of the hydraulic valve device contributes.
- control device is preceded by a pressure compensator, with which the so-called.
- a pressure compensator with which the so-called.
- Mengenabschneidung by a Loadsensing- pressure limitation in the spring chamber of the pressure compensator is possible.
- this function of Mengenabschneidung is not possible or to obtain only over appropriate additional valve constructions in a complex manner.
- the control function of the pressure compensator is improved by a relatively large outflow cross-section opens into the return port. Also the so-called floating position is improved.
- FIGS. 1 and 2 in the manner of a longitudinal section two embodiments of the hydraulic valve device, wherein the pressure compensator is in their respective control position;
- the control device 18 as such is controlled in a known and therefore not described in more detail manner of conventional pilot valves 20,22, which are shown in Figure 3 with their hydraulic symbols and the sake of simpler representation in Fig.1 only shown extent are, as their respective assignable pilot housing 24,26 are addressed.
- the two pilot valves 20,22 for the control device 18 provide two counteracting control pressures XA and XB-
- a pump control pressure PST acts on the respective pilot valve 20,22 and a tank connection line To is likewise connected to the respective pilot valve.
- connection channels 40,42 For producing the fluid-carrying connection between the pair-wise assignable load-sensing and load-sensing connections 32, 36; 34,38 serve within the spool 18 arranged connection channels 40,42.
- one of the connecting channels 40 is designed as a so-called center channel which, in the neutral position of the control device 18 shown in FIG. 1, covers the region between the section load-sensing connection LS and the useful connection B with its axial length.
- the center channel is in the direction of the Fig.l seen on the left side of the spool 28 and extends in the manner of an attached blind bore along the longitudinal axis of the spool 28.
- this is provided as a further connecting channel 42 at least one annular longitudinal channel, which in turn covers in the neutral position of the control device 18 with its axial length at least the area between the control terminal PA 'and the user terminal A.
- the load-indicating and load-sensing connections 32, 36, 34, 38 are each designed as radially extending bores in the control slide 28.
- the spool 28 along its outer periphery between the two groove-like control channels 48,50 still separate pockets 56 which are separated from each other in different Winkefan kannen along said spool 28 extend. Furthermore, in the control channel 48, at least in the region of the useful connection A, a segmenting partition wall 58 is drawn in and in the floating position shown in FIG. 2 the useful connection A is in fluid-conducting connection with the individual pockets 56 of the control slide 28.
- FIG. 4 which represents only the control slide 28 together with the housing connections LS, PA ', A, R, B, PB', contributes to the realization of a pertinent rapid traverse position.
- the fluid-carrying connection P is maintained after B, the connection A is closed to R and for the connection A is opened to P to the return flow from the rod side (ring surface) of a working cylinder of the machine not shown to the bottom side (bar mower application) to enable.
- the one load sensing bore of the spool 28 is in the pressure port B and a load detection hole is guided to a assignable housing pocket in the spool 28.
- the non-return valves 60 shown in FIG. 5 can also be used in the control channels 48, 50 (not shown) in the embodiment according to FIGS. 1 and 2, in which case the closing ball is respectively in the direction of the load-sensing connection opens to achieve comparable results as described above.
- valve device can be standard way valves with the three basic positions for neutral, lifting and lowering extend in scope to a floating position and / or a rapid traverse without this, as in the known slide valve solutions, comes to an extension of the spool to get into the additional position with the desired logic operations; Rather, with the solution according to the invention, a pusher extension can be completely avoided or the poppet valve axis can even be shortened.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710054137 DE102007054137A1 (de) | 2007-11-14 | 2007-11-14 | Hydraulische Ventilvorrichtung |
PCT/EP2008/008519 WO2009062572A1 (de) | 2007-11-14 | 2008-10-09 | Hydraulische ventilvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2220380A1 true EP2220380A1 (de) | 2010-08-25 |
EP2220380B1 EP2220380B1 (de) | 2012-12-19 |
Family
ID=40293784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080850047 Not-in-force EP2220380B1 (de) | 2007-11-14 | 2008-10-09 | Hydraulische ventilvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US8464757B2 (de) |
EP (1) | EP2220380B1 (de) |
JP (1) | JP5462178B2 (de) |
DE (1) | DE102007054137A1 (de) |
DK (1) | DK2220380T3 (de) |
WO (1) | WO2009062572A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8863115B2 (en) | 2008-03-20 | 2014-10-14 | Sap Ag | Execution of program code having language-level integration of program models |
DE102009021103A1 (de) * | 2009-05-13 | 2010-11-18 | Hydac Filtertechnik Gmbh | Hydraulische Ventilvorrichtung |
DE102009058371A1 (de) | 2009-12-15 | 2011-06-16 | Hydac Filtertechnik Gmbh | Ventilanordnung zur Ansteuerung eines Verbrauchers |
JP2014173616A (ja) * | 2013-03-06 | 2014-09-22 | Caterpillar Sarl | 作業機械の圧損低減回路 |
JP2016156405A (ja) * | 2015-02-23 | 2016-09-01 | アネスト岩田株式会社 | パイロットバルブ |
ITUA20162417A1 (it) * | 2016-04-08 | 2017-10-08 | Atlantic Fluid Tech S R L | Valvola di controllo direzionale |
US11378192B2 (en) | 2018-05-18 | 2022-07-05 | Hydac Systems & Services Gmbh | Valve |
DE102018207929A1 (de) * | 2018-05-18 | 2019-11-21 | Hydac Systems & Services Gmbh | Ventil |
DE102018212312A1 (de) * | 2018-07-24 | 2020-01-30 | Robert Bosch Gmbh | Ventilbaugruppe mit Lasthaltung, Druckwaage und Kopierventil |
US10876552B2 (en) * | 2018-09-21 | 2020-12-29 | Eaton Intelligent Power Limited | Hydraulic fluid pressure compensator unit with integrated load sense and reverse flow checks |
DE102020208932A1 (de) | 2020-07-16 | 2022-01-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Ventil mit selbsttätiger Rücklaufreduzierung bei ziehenden Lasten |
CN115325214B (zh) * | 2022-10-13 | 2023-01-24 | 南通埃东石化设备制造有限公司 | 一种出水量恒定的手动调节阀 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3565110A (en) * | 1969-08-04 | 1971-02-23 | Commercial Shearing | Control valves |
JPS549276B2 (de) * | 1972-02-29 | 1979-04-23 | ||
US3771564A (en) * | 1972-03-23 | 1973-11-13 | Caterpillar Tractor Co | Pilot control valve |
US4253482A (en) * | 1979-03-05 | 1981-03-03 | Gresen Manufacturing Company | Hydraulic valve having pressure compensated demand flow |
US4617798A (en) * | 1983-04-13 | 1986-10-21 | Linde Aktiengesellschaft | Hydrostatic drive systems |
SE458704B (sv) * | 1987-05-18 | 1989-04-24 | Atlas Copco Ab | Anordning vid ett hydrauliskt drivsystem anslutet till en lastdrivande hydraulmotor |
DE8801058U1 (de) | 1988-01-29 | 1988-03-10 | Danfoss A/S, Nordborg | Hydraulisches Steuerventil mit Druckfühleinrichtung |
JP3119722B2 (ja) * | 1992-05-25 | 2000-12-25 | 株式会社小松製作所 | 圧力比例制御弁による4位置クローズドセンタの切換弁の油圧回路 |
JPH06280805A (ja) * | 1993-03-25 | 1994-10-07 | Komatsu Ltd | 圧油供給装置 |
IT1281708B1 (it) | 1996-01-24 | 1998-02-26 | Brevini Hydraulics Spa | Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale |
US5765594A (en) * | 1996-04-02 | 1998-06-16 | Danfoss A/S | Hydraulic control valve |
KR100289419B1 (ko) * | 1997-01-21 | 2001-05-02 | 세구치 류이치 | 분류밸브부착 방향제어밸브 |
JP4428856B2 (ja) * | 2000-12-20 | 2010-03-10 | カヤバ工業株式会社 | 切換弁 |
EP1370773B1 (de) | 2001-03-21 | 2005-06-22 | Bucher Hydraulics GmbH | Wegeventil |
DE10258517B3 (de) | 2002-12-14 | 2004-06-03 | Sauer-Danfoss (Nordborg) A/S | Hydraulische Ventilanordnung |
DE102005050169A1 (de) * | 2005-06-21 | 2006-12-28 | Bosch Rexroth Ag | LS-Steueranordnung und LS-Wegeventil |
-
2007
- 2007-11-14 DE DE200710054137 patent/DE102007054137A1/de not_active Withdrawn
-
2008
- 2008-10-09 DK DK08850047T patent/DK2220380T3/da active
- 2008-10-09 WO PCT/EP2008/008519 patent/WO2009062572A1/de active Application Filing
- 2008-10-09 EP EP20080850047 patent/EP2220380B1/de not_active Not-in-force
- 2008-10-09 US US12/734,289 patent/US8464757B2/en not_active Expired - Fee Related
- 2008-10-09 JP JP2010533449A patent/JP5462178B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2009062572A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2011503480A (ja) | 2011-01-27 |
US8464757B2 (en) | 2013-06-18 |
EP2220380B1 (de) | 2012-12-19 |
JP5462178B2 (ja) | 2014-04-02 |
WO2009062572A1 (de) | 2009-05-22 |
DK2220380T3 (da) | 2013-02-04 |
US20100300552A1 (en) | 2010-12-02 |
DE102007054137A1 (de) | 2009-05-28 |
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