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1. (WO2017178546) HYDRAULIC POWER CONTROL CIRCUIT AND CONSTRUCTION VEHICLE COMPRISING SUCH CIRCUIT
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/178546 International Application No.: PCT/EP2017/058832
Publication Date: 19.10.2017 International Filing Date: 12.04.2017
IPC:
E02F 9/22 (2006.01) ,F15B 11/16 (2006.01) ,F15B 13/02 (2006.01) ,F15B 21/00 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20
Drives; Control devices
22
Hydraulic or pneumatic drives
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
16
with two or more servomotors
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
13
Details of servomotor systems
02
Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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
21
Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Applicants:
CNH INDUSTRIAL ITALIA S.P.A. [IT/IT]; Via Plava 8 10135 Turin, IT (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
CNH INDUSTRIAL AMERICA LLC [US/US]; P.O. Box 1895 500 Diller Avenue New Holland, Pennsylvania 17557, US (US)
CNH (CHINA) MANAGEMENT CO., LTD [CN/CN]; Floor 10, No. 2, Maji Road Waigaoqiao Trade Free Zone Shanghai, 200131, CN (CN)
Inventors:
CHIOCCOLA, Francesco; IT
Agent:
BOYDENS, Kris, R.; BE
Priority Data:
UA2016A00261114.04.2016IT
Title (EN) HYDRAULIC POWER CONTROL CIRCUIT AND CONSTRUCTION VEHICLE COMPRISING SUCH CIRCUIT
(FR) CIRCUIT DE COMMANDE DE PUISSANCE HYDRAULIQUE, ET VÉHICULE DE CONSTRUCTION COMPRENANT UN TEL CIRCUIT
Abstract:
(EN) In a load sensing hydraulic control circuit, a pressure compensator elaborates both a load sensing pressure signal to control a pump unit and a pressure compensated power flow for actuators, the power flow being either split or alternatively directed to at least a first and a second actuator control valves so that a differential pressure across the first and second control valves is controlled by the pressure compensator. In one embodiment, the circuit is onboard a construction vehicle to power actuators such as travel left, travel right, swing, boom, arm, bucket and the like.
(FR) Selon l'invention, dans un circuit de commande hydraulique de détection de charge, un compensateur de pression élabore à la fois un signal de pression de détection de charge pour commander une unité de pompe et un flux de puissance à compensation de pression pour des actionneurs, le flux de puissance étant divisé ou autrement dirigé au moins vers des première et seconde soupapes de commande d'actionneur de telle sorte qu'une pression différentielle à travers les première et seconde soupapes de commande est régulée par le compensateur de pression. Dans un mode de réalisation, le circuit est embarqué à bord d'un véhicule de construction pour alimenter des actionneurs, tels qu'un déplacement à gauche, un déplacement à droite, un balancement, une flèche, un bras, un godet et analogues.
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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, DJ, 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, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, ST, 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)