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Machine translation
1. (WO2011140184) PUMP POWER CONTROL METHOD FOR PREVENTING STALL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/140184    International Application No.:    PCT/US2011/035127
Publication Date: 10.11.2011 International Filing Date: 04.05.2011
IPC:
F15B 11/16 (2006.01), E02F 9/22 (2006.01)
Applicants: SHENOUDA, Amir [EG/US]; (US) (For US Only).
PARKER HANNIFIN CORPORATION [US/US]; 6035 Parkland Blvd. Cleveland, Ohio 44124-4141 (US) (For All Designated States Except US)
Inventors: SHENOUDA, Amir; (US)
Agent: CLARK, Robert; 6035 Parkland Blvd. Cleveland, Ohio 44124-4141 (US)
Priority Data:
61/330,926 04.05.2010 US
Title (EN) PUMP POWER CONTROL METHOD FOR PREVENTING STALL
(FR) PROCÉDÉ DE RÉGULATION DE PUISSANCE DE POMPE PERMETTANT D'EMPÊCHER UN DÉCROCHAGE
Abstract: front page image
(EN)A method of controlling or manipulating the commanded flow (i.e., commanded speeds) of a hydraulically actuated system (such as an excavator) is provided so that the pump power demand does not over demand the associated engine or motor which may cause it to stall. A controller (20) calculates how much flow is demanded by means of a joystick (22) signal, and how much pressure is required by means of load sensors (32). When the maximum available pump flow is lower that the total demanded flow for the functions of the hydraulic system operated simultaneously, the flow for each function is reduced according to the ratio between the available flow and the total demanded flow.
(FR)L'invention concerne un procédé de régulation ou de manipulation de l'écoulement commandé (à savoir, des vitesses commandées) d'un système actionné hydrauliquement (comme par exemple un excavateur) de sorte que la demande de puissance de pompe n'excède pas la capacité du moteur ou du moteur électrique associé, ce qui risquerait de provoquer un décrochage.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)