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1. (WO2019024428) REVERSING VALVE FOR HYDRAULIC PISTON PUMP
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Pub. No.: WO/2019/024428 International Application No.: PCT/CN2018/000217
Publication Date: 07.02.2019 International Filing Date: 07.06.2018
IPC:
F04B 9/103 (2006.01) ,F04B 49/22 (2006.01) ,F04B 53/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
9
Piston machines or pumps characterised by the driving or driven means to or from their working members
08
the means being fluid
10
the fluid being liquid
103
having only one pumping chamber
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49
Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups F04B1/-F04B47/196
22
by means of valves
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53
Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
10
Valves; Arrangement of valves
Applicants:
崔迺林 CUI, Nailin [CN/CN]; CN
Inventors:
崔迺林 CUI, Nailin; CN
Priority Data:
201710683380.704.08.2017CN
Title (EN) REVERSING VALVE FOR HYDRAULIC PISTON PUMP
(FR) SOUPAPE D'INVERSION POUR POMPE À PISTON HYDRAULIQUE
(ZH) 一种水力活塞泵换向阀
Abstract:
(EN) A reversing valve for a hydraulic piston pump, which is composed of a pilot valve (10) and a main valve (20); the pilot valve (10) comprises a pilot valve seat (13), a hollow valve core (12), and a slide shaft (17); the main valve (20) comprises an upper valve seat (23), a lower valve seat (23a) and a main valve core (22); when the hollow valve core (12) is in a lower position, a control flow passage (34) is connected to a spent liquid flow passage (33), the main valve core (22) is in a lower position, and power liquid supplied by the main valve (20) causes a power piston (53) to ascend; when the hollow valve core (12) is in an upper position, power fluid controls the main valve core (22) to set at an upper portion, and power liquid supplied by the pilot valve (10) causes the power piston (53) to descend; initial movement of the hollow valve core (12) is provided by the power piston (53) actuating the slide shaft (17), and then the hollow valve core (12) is pushed by hydraulic pressure to a reversing position.
(FR) L’invention concerne une soupape d'inversion pour pompe à piston hydraulique, qui est composée d'une soupape pilote (10) et d'une soupape principale (20) ; la soupape pilote (10) comprend un siège de soupape pilote (13), un noyau de valve creuse (12), et un arbre coulissant (17) ; la valve principale (20) comprend un siège de soupape supérieur (23), un siège de soupape inférieur (23a) et un noyau de soupape principal (22) ; lorsque le noyau de soupape creux (12) est dans une position inférieure, un passage d'écoulement de commande (34) est relié à un passage d'écoulement de fluide usé (33), le noyau de valve principal (22) est dans une position inférieure, et le fluide moteur fourni par la soupape principale (20) amène un piston moteur (53) à monter ; lorsque le noyau de valve creuse (12) est dans une position supérieure, le fluide moteur commande le noyau de soupape principal (22) pour se placer au niveau d'une partie supérieure, et le fluide moteur fourni par la valve pilote (10) amène le piston moteur (53) à descendre; le mouvement initial du noyau de soupape creux (12) est fourni par le piston moteur (53) actionnant l'arbre coulissant (17), puis le noyau de soupape creux (12) est poussé par pression hydraulique dans une position inversée.
(ZH) 一种水力活塞泵换向阀,由先导阀(10)和主阀(20)组成,先导阀(10)包括先导阀座(13)、空心阀芯(12)、滑杆(17),主阀(20)包括上阀座(23)、下阀座(23a)及主阀芯(22),当空心阀芯(12)处于下部位置时,控制流道(34)与乏液流道(33)连通,主阀芯(22)处于下部位置,由主阀(20)提供的动力液促使动力活塞(53)上行,当空心阀芯(12)处于上部位置时动力液控制主阀芯(22)在上部坐封,由先导阀(10)提供的动力液促使动力活塞(53)下行,空心阀芯(12)的初始动作由动力活塞(53)触动滑杆(17)提供,然后由液压力推至换向位置。
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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: Chinese (ZH)
Filing Language: Chinese (ZH)