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1. (WO2019002250) SWITCHOVER VALVE FOR CONTROLLING A HYDRAULIC FLUID FLOW OF A CONNECTING ROD FOR A VARIABLE-COMPRESSION INTERNAL COMBUSTION ENGINE, AND CONNECTING ROD
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Pub. No.: WO/2019/002250 International Application No.: PCT/EP2018/067040
Publication Date: 03.01.2019 International Filing Date: 26.06.2018
IPC:
F02B 75/04 (2006.01) ,F16K 31/363 (2006.01) ,F16K 11/07 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75
Other engines, e.g. single-cylinder engines
04
Engines with variable distances between pistons at top dead-centre positions and cylinder heads
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
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31
Operating means; Releasing devices
12
actuated by fluid
36
in which fluid from the conduit is constantly supplied to the fluid motor
363
the fluid acting on a piston
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
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
11
Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid
02
with all movable sealing faces moving as one unit
06
comprising only sliding valves
065
with linearly sliding closure members
07
with cylindrical slides
Applicants:
ECO HOLDING 1 GMBH [DE/DE]; Am Schlossfeld 5 97828 Marktheidenfeld, DE
Inventors:
SELKE, André; DE
MUDRA, Alexander; DE
WITOPIL, Mario; DE
Priority Data:
10 2017 114 263.027.06.2017DE
Title (EN) SWITCHOVER VALVE FOR CONTROLLING A HYDRAULIC FLUID FLOW OF A CONNECTING ROD FOR A VARIABLE-COMPRESSION INTERNAL COMBUSTION ENGINE, AND CONNECTING ROD
(FR) VANNE DE PERMUTATION SERVANT À COMMANDER UN FLUX DE LIQUIDE HYDRAULIQUE D'UNE BIELLE POUR UN MOTEUR À COMBUSTION INTERNE À COMPRESSION VARIABLE, ET BIELLE
(DE) UMSCHALTVENTIL ZUM STEUERN EINES HYDRAULIKFLÜSSIGKEITSSTROMS EINES PLEUELS FÜR EINE BRENNKRAFTMASCHINE MIT VARIABLER VERDICHTUNG SOWIE PLEUEL
Abstract:
(EN) The invention relates to a switchover valve (5) for controlling a hydraulic fluid flow of a connecting rod (1) for a variable-compression internal combustion engine having an eccentric adjuster (2) for adjusting an effective connecting rod length. The switchover valve (5) has a stepped piston (28) which can move in a housing (34) and can selectively be displaced into a first switching position (S1) or a second switching position (S2). In the first switching position (S1), the outlet (21) of a second cylinder and, in the second switching position (S2), the outlet (20) of a first cylinder is connected to a supply source (P). The cylinders are connected such that, in the second switching position (S2), hydraulic fluid can be carried from the first cylinder into the second cylinder directly via the switchover valve (5). The invention further relates to a connecting rod (1) having a switchover valve (5).
(FR) L'invention concerne une vanne de permutation (5) servant à commander un flux de liquide hydraulique d'une bielle (1) pour un moteur à combustion interne à compression variable, comprenant un dispositif de réglage excentrique (2) destiné au réglage d'une longueur effective de bielle. La vanne de permutation (5) possède un piston à gradins (28) mobile dans un carter (34), lequel peut être déplacé, au choix, dans une première position de commutation (S1) ou dans une deuxième position de commutation (S2). La sortie (21) d'un deuxième cylindre est reliée à une source d'alimentation (P) dans la première position de commutation (S1) et la sortie (20) d'un premier cylindre est reliée à une source d'alimentation (P) dans la deuxième position de commutation (S2). Les cylindres sont reliés de telle sorte que dans la deuxième position de commutation (S2), du liquide hydraulique peut être conduit du premier cylindre dans le deuxième cylindre directement par le biais de la vanne de permutation (5). L'invention concerne en outre une bielle (1) pourvue d'une vanne de permutation (5).
(DE) Die Erfindung betrifft ein Umschaltventil (5) zum Steuern eines Hydraulikflüssigkeitsstroms eines Pleuels (1) für eine Brennkraftmaschine mit variabler Verdichtung mit einer Exzenter-Verstelleinrichtung (2) zur Verstellung einer effektiven Pleuelstangenlänge, Das Umschaltventil (5) weist einen in einem Gehäuse (34) beweglichen Stufenkolben (28) auf, welcher wahlweise in eine erste Schaltstellung (S1) oder eine zweite Schaltstellung (S2) verlagerbar ist. In der ersten Schaltstellung (S1) ist der Ablauf (21) eines zweiten Zylinders und in der zweiten Schaltstellung (S2) der Ablauf (20) eines ersten Zylinders mit einer Versorgungsquelle (P) verbunden. Die Zylinder sind derart verbunden, dass in der zweiten Schaltstellung (S2) Hydraulikflüssigkeit aus dem ersten Zylinder in den zweiten Zylinder direkt über das Umschaltventil (5) leitbar ist. Die Erfindung betrifft ferner einen Pleuel (1) mit einem Umschaltventil (5).
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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, 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)