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1. (WO2019029786) APPARATUS FOR CAMSHAFT TIMING ADJUSTMENT WITH BUILT IN PUMP
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/029786 International Application No.: PCT/EP2017/069942
Publication Date: 14.02.2019 International Filing Date: 07.08.2017
IPC:
F01L 1/344 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
34
characterised by the provision of means for changing the timing of the valves without changing the duration of opening
344
changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Applicants:
HELLA GMBH & CO. KGAA [DE/DE]; Rixbecker Straße 75 59552 Lippstadt, DE
Inventors:
MÜLLER, Hagen; DE
HÜSER, Theodor; DE
Priority Data:
Title (DE) APPARATUS FOR CAMSHAFT TIMING ADJUSTMENT
(EN) APPARATUS FOR CAMSHAFT TIMING ADJUSTMENT WITH BUILT IN PUMP
(FR) APPAREIL DE RÉGLAGE DE SYNCHRONISATION D'ARBRE À CAMES AVEC POMPE INTÉGRÉE
Abstract:
(DE) An apparatus (1) for camshaft timing adjustment, comprising: a drive disc (10) and a hub (50) rotationally supported relative to each other and defining a common rota- tional axis (2) wherein the hub (50) is arranged within the drive disc (10) or vice versa, a vane (57) being accommodated in an adjusting chamber (30) defined by the drive disc (10) and the hub (50) and separating the adjusting chamber (30) into a first sub- chamber (31) and a second sub-chamber (32), wherein the vane (57) is attached to the hub (50) or the drive disc (10), a hydraulic pump (100) having a high pressure pump chamber (101), a low pressure pump chamber (102) and a pumping (means 103) for pumping a hydraulic fluid from the low pressure pump chamber (102) to the high pressure pump chamber (101), each pump chamber 101, (102) being fluidly connected to the first sub-chamber (31) and the second sub-chamber (32), an a valve assembly (120) comprising a valve actuating means (140) and having a first state for enabling a flow of the hydraulic fluid from the second sub-chamber (31) to the first sub-chamber (32), respectively, and a second state for enabling a flow of the hydraulic fluid from the first sub-chamber (31) to the second (sub-chamber 32), respectively.
(EN) An apparatus (1) for camshaft timing adjustment, comprising: a drive disc (10) and a hub (50) rotationally supported relative to each other and defining a common rotational axis (2) wherein the hub (50) is arranged within the drive disc (10) or vice versa, a vane (57) being accommodated in an adjusting chamber (30) defined by the drive disc (10) and the hub (50) and separating the adjusting chamber (30) into a first sub- chamber (31) and a second sub-chamber (32), wherein the vane (57) is attached to the hub (50) or the drive disc (10), a hydraulic pump (100) having a high pressure pump chamber (101), a low pressure pump chamber (102) and a pumping means (103) for pumping a hydraulic fluid from the low pressure pump chamber (102) to the high pressure pump chamber (101), each pump chamber (101, 102) being fluidly connected to the first sub-chamber (31) and the second sub-chamber (32), an a valve assembly 120 comprising a valve actuating means (140) and having a first state for enabling a flow of the hydraulic fluid from the second sub-chamber (31) to the first sub-chamber (32), respectively, and a second state for enabling a flow of the hydraulic fluid from the first sub-chamber (31) to the second sub-chamber (32), respectively.
(FR) L'invention concerne un appareil (1) de réglage de synchronisation d'arbre à cames, comprenant: un disque d'entraînement (10) et un moyeu (50) supportés en rotation l'un par rapport à l'autre et définissant un axe de rotation commun (2), le moyeu (50) étant agencé à l'intérieur du disque d'entraînement (10) ou vice versa, une aube (57) étant logée dans une chambre de réglage (30) définie par le disque d'entraînement (10) et le moyeu (50) et séparant la chambre de réglage (30) en une première sous-chambre (31) et une seconde sous-chambre (32), l'aube (57) étant fixée au moyeu (50) ou au disque d'entraînement (10), une pompe hydraulique (100) ayant une chambre de pompe haute pression (101), une chambre de pompe basse pression (102) et un moyen de pompage (103) pour pomper un fluide hydraulique de la chambre de pompe basse pression (102) à la chambre de pompe haute pression (101), chaque chambre de pompe (101, 102) étant en communication fluidique avec la première sous-chambre (31) et la seconde sous-chambre (32), un ensemble soupape (120) comprenant un moyen d'actionnement de soupape (140) et ayant un premier état pour permettre un écoulement du fluide hydraulique de la seconde sous-chambre (31) à la première sous-chambre (32), respectivement, et un second état pour permettre un écoulement du fluide hydraulique de la première sous-chambre (31) à la seconde sous-chambre (32), respectivement.
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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 Organization (AM, AZ, BY, KG, KZ, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)