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1. (WO2019025202) SEALING RING FOR A PISTON PUMP
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Pub. No.: WO/2019/025202 International Application No.: PCT/EP2018/069647
Publication Date: 07.02.2019 International Filing Date: 19.07.2018
IPC:
F04B 1/04 (2006.01) ,F04B 53/02 (2006.01) ,F04B 53/14 (2006.01) ,F04B 53/16 (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
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
02
Packing the free space between cylinders and pistons
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
16
Casings; Cylinders; Cylinder liners or heads; Fluid connections
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
SCHULLER, Wolfgang; DE
Priority Data:
10 2017 213 320.102.08.2017DE
Title (EN) SEALING RING FOR A PISTON PUMP
(FR) BAGUE D’ÉTANCHÉITÉ D’UNE POMPE À PISTON
(DE) DICHTRING EINER KOLBENPUMPE
Abstract:
(EN) A sealing ring (38) for a piston pump (10) of a vehicle braking system, the ring having a sealing face (52) for placement against the piston outer surface (36) of an associated piston (14), is characterised according to the invention in that the sealing ring (38) is formed from a first and a second sealing ring portion (40, 42) that are integrally connected, and in that the first sealing ring portion (40) is located on the side of the sealing ring (38) facing the piston outer surface (36) and is made of a first material and the second sealing ring portion (42) is located on the side of the sealing ring (38) facing away from the piston outer surface (36) and is made of a second material.
(FR) L'invention concerne une bague d’étanchéité (38) d’une pompe à piston (10) d’un système de freinage de véhicule, ayant une surface d’étanchéité (52) destinée à être appliquée sur la surface extérieure (36) d’un piston associé (14), qui est caractérisée selon l’invention en ce que la bague d’étanchéité (38) est formée d’une première et d’une deuxième partie de bague d’étanchéité (40, 42) qui sont reliées d’une seule pièce l’une à l’autre, et la première partie de bague d’étanchéité (40) est disposée du côté de la bague d’étanchéité (38) qui est dirigé vers la surface extérieure (36) du piston et est fabriquée à partir d’un premier matériau et la deuxième partie de bague d’étanchéité (42) est disposée du côté de la bague d’étanchéité (38) qui est opposé à la surface extérieure (36) du piston et est fabriquée à partir d’un deuxième matériau.
(DE) Ein Dichtring (38) einer Kolbenpumpe (10) einer Fahrzeugbremsanlage, der eine Dichtfläche (52) zum Anlegen an eine Kolbenaußenfläche (36) eines zugehörigen Kolbens (14) aufweist, ist erfindungsgemäß dadurch gekennzeichnet, dass der Dichtring (38) aus einem ersten und einem zweiten Dichtringabschnitt (40, 42) gebildet ist, die einstückig miteinander verbunden sind, und der erste Dichtringabschnitt (40) an der der Kolbenaußenfläche (36) zugewandten Seite des Dichtrings (38) angeordnet und aus einem ersten Material hergestellt sowie der zweite Dichtringabschnitt (42) an der der Kolbenaußenfläche (36) abgewandten Seite des Dichtrings (38) angeordnet und aus einem zweiten Material hergestellt ist.
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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: German (DE)
Filing Language: German (DE)