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1. (WO2018140986) HYDRAULIC ACTUATOR WITH PRESSURE-BASED PISTON POSITION FEEDBACK
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Pub. No.: WO/2018/140986 International Application No.: PCT/US2018/024379
Publication Date: 02.08.2018 International Filing Date: 26.03.2018
IPC:
E21B 43/12 (2006.01) ,E21B 34/06 (2006.01) ,F04D 13/04 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
12
Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
34
Valve arrangements for boreholes or wells
06
in wells
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
13
Pumping installations or systems
02
Units comprising pumps and their driving means
04
the pump being fluid-driven
Applicants:
GENERAL ELECTRIC COMPANY [US/US]; 1 River Road Schenectady, NY 12345, US
Inventors:
MIDDLETON, Chistopher Martin; US
DEV, Bodhayan; US
REEVES, Brian Paul; US
TRIVEDI, Deepak; US
Agent:
POLLANDER, Laura L.; US
DIMAURO, Peter, T.; US
ZHANG, Douglas, D.; US
WINTER, Catherine, J.; US
MIDGLEY, Stephen, G.; US
Priority Data:
15/415,58225.01.2017US
Title (EN) HYDRAULIC ACTUATOR WITH PRESSURE-BASED PISTON POSITION FEEDBACK
(FR) ACTIONNEUR HYDRAULIQUE À RÉTROACTION DE POSITION DE PISTON BASÉE SUR LA PRESSION
Abstract:
(EN) A hydraulic actuator includes a piston housing having a head end and a base end opposite the head end and a drive piston movable between a first piston position proximate to the head end and a second piston position proximate to the base end. The hydraulic actuator further includes a control valve positionable between a first control valve position, in which the control valve directs fluid into the base end, and a second control valve position, in which the control valve directs fluid into the head end. A pressure-based position feedback system configured to facilitate transition of the control valve between the first control valve position and the second control valve position in response to predetermined head end and base end pressures.
(FR) Un actionneur hydraulique comprend un logement de piston ayant une extrémité de tête et une extrémité de base opposée à l'extrémité de tête et un piston d'entraînement mobile entre une première position de piston à proximité de l'extrémité de tête et une seconde position de piston à proximité de l'extrémité de base. L'actionneur hydraulique comprend en outre une soupape de commande pouvant être positionnée entre une première position de soupape de commande, dans laquelle la soupape de commande dirige le fluide dans l'extrémité de base, et une seconde position de soupape de commande, dans laquelle la soupape de commande dirige le fluide dans l'extrémité de tête. Un système de rétroaction de position basé sur la pression est conçu pour faciliter la transition de la soupape de commande entre la première position de soupape de commande et la seconde position de soupape de commande en réponse à des pressions d'extrémité de tête et de base prédéfinies.
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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, JO, 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)