WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2014195042) A HYDRAULIC VALVE ARRANGEMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/195042 International Application No.: PCT/EP2014/056476
Publication Date: 11.12.2014 International Filing Date: 31.03.2014
IPC:
F15B 11/024 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
02
Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
024
by means of differential connection of the servomotor lines, e.g. regenerative circuits
Applicants: DANFOSS POWER SOLUTIONS APS[DK/DK]; Nordborgvej 81 DK-6430 Nordborg, DK
Inventors: CALLESEN, Frede; DK
WROBLEWSKI, Dirk; DE
Agent: PATENTANWÄLTE DR. KNOBLAUCH; Schlosserstraße 23 60322 Frankfurt, DE
Priority Data:
13170452.004.06.2013EP
Title (EN) A HYDRAULIC VALVE ARRANGEMENT
(FR) AGENCEMENT DE VANNES À COMMANDE HYDRAULIQUE
Abstract:
(EN) A hydraulic valve arrangement (1) is provided comprising comprising a supply port arrangement having a high pressure port (2) and a low pressure port (4), a working port arrangement having two working ports (6, 7), a first valve (13) arranged between said high pressure port (2) and said working port arrangement (6, 7), a second valve (14) arranged between said low pressure port (4) and said working port arrangement (6, 7), a controller (19) for controlling said first valve (13) and said second valve (14), said controller (19) having an input connection (20) for receiving a signal of an operator input device, and a regenerative flow path which can be established by means of at least one of said first valve (13) and said second valve (14). The function of such a hydraulic valve arrangement should be enhanced. To this end said controller (19) said controller interrupts said regenerative flow path when a feed pressure at said working port arrangement (6, 7) exceeds a predermined pressure level.
(FR) L'invention concerne un agencement de vannes à commande hydraulique (1) comportant un agencement d'orifices d'alimentation ayant un orifice haute pression (2) et un orifice basse pression (4), un agencement d'orifices de travail ayant deux orifices de travail (6, 7), une première vanne (13) agencée entre ledit orifice haute pression (2) et ledit agencement d'orifices de travail (6, 7), une deuxième vanne (14) agencée entre ledit orifice basse pression (4) et ledit agencement d'orifices de travail (6, 7), un dispositif de commande (19) permettant de commander ladite première vanne (13) et ladite deuxième vanne (14), ledit dispositif de commande (19) ayant une connexion d'entrée (20) à des fins de réception d'un signal d'un dispositif d'entrée d'opérateur, et un chemin d'écoulement de régénération qui peut être établi au moyen d'au moins l'une de ladite première vanne (13) et de ladite deuxième vanne (14). Le fonctionnement d'un tel agencement de vannes à commande hydraulique devrait être perfectionné. À cette fin, ledit dispositif de commande (19) interrompt ledit chemin d'écoulement de régénération quand une pression d'alimentation au niveau dudit agencement d'orifices de travail (6, 7) dépasse un niveau de pression prédéterminé.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)