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1. (WO2019048750) HYDRAULIC PISTON WITH VALVE FOR COOLING AND LUBRICATION
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Pub. No.: WO/2019/048750 International Application No.: PCT/FR2018/051958
Publication Date: 14.03.2019 International Filing Date: 30.07.2018
IPC:
F03C 1/04 (2006.01) ,F03C 1/06 (2006.01) ,F04B 1/12 (2006.01) ,F04B 1/04 (2006.01) ,F04B 53/14 (2006.01) ,F04B 53/08 (2006.01) ,F04B 53/18 (2006.01) ,F16J 1/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03
MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
C
POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
1
Reciprocating-piston liquid engines
02
with multiple cylinders, characterised by the number or arrangement of cylinders
04
with cylinders in star- or fan-arrangement
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03
MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
C
POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
1
Reciprocating-piston liquid engines
02
with multiple cylinders, characterised by the number or arrangement of cylinders
06
with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
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
1
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12
having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
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
1
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
04
having cylinders in star- or fan-arrangement
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
14
Pistons, piston-rods or piston-rod connections
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
08
Cooling; Heating; Preventing freezing
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
18
Lubricating
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
1
Pistons; Trunk pistons; Plungers
Applicants:
RABHI, Vianney [FR/FR]; FR
Inventors:
RABHI, Vianney; FR
Agent:
COLBERT INNOVATION; 139 rue Vendôme Lyon cedex 06 69477, FR
Priority Data:
175819605.09.2017FR
Title (EN) HYDRAULIC PISTON WITH VALVE FOR COOLING AND LUBRICATION
(FR) PISTON HYDRAULIQUE A SOUPAPE DE REFROIDISSEMENT ET LUBRIFICATION
Abstract:
(EN) The hydraulic piston (1) forms a hydraulic chamber (5) with a cylinder (4) and has a cylindrical body (6) that receives sealing means (16) and the cylindrical external surface (13) of which is housed with a little play in the cylinder (4) so as to leave an interstitial space (32), the cylindrical body (6) being traversed by a cooling and lubrication duct (7) that can be opened or closed by a cooling and lubrication valve (2) driven in translation by a piston valve actuator (22), so that when the pressure in the hydraulic chamber (5) is low, fluid (11) can pass through a flow calibrating orifice (27) from the hydraulic chamber (5) toward the interstitial space (32), and not when the pressure in the chamber (5) is high.
(FR) Le piston hydraulique (1) forme une chambre hydraulique (5) avec un cylindre (4) et présente un corps cylindrique (6) qui reçoit des moyens d'étanchéité (16) et dont la surface cylindrique externe (13) est logée à faible jeu dans le cylindre (4) de sorte à laisser un espace interstitiel (32), le corps cylindrique (6) étant traversé par un conduit de refroidissement et lubrification (7) pouvant être ouvert ou fermé par une soupape de refroidissement et lubrification (2) mue en translation par un piston actionneur de soupape (22), de sorte que lorsque la pression régnant dans la chambre hydraulique (5) est basse, du fluide (11) puisse passer via un orifice de calibrage de débit (27) depuis la chambre hydraulique (5) vers l'espace interstitiel (32), et non quand la pression dans ladite chambre (5) est haute.
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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: French (FR)
Filing Language: French (FR)