Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019048455) VALVE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/048455 International Application No.: PCT/EP2018/073823
Publication Date: 14.03.2019 International Filing Date: 05.09.2018
IPC:
F15B 1/02 (2006.01) ,B66F 9/22 (2006.01) ,F15B 13/02 (2006.01) ,F15B 13/04 (2006.01) ,F15B 1/027 (2006.01) ,F15B 1/033 (2006.01) ,F15B 11/05 (2006.01) ,B60G 17/056 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
1
Installations or systems with accumulators; Supply reservoir or sump assemblies
02
Installations or systems with accumulators
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
F
HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
9
Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
06
movable, with their loads, on wheels or the like, e.g. fork-lift trucks
075
Constructional features or details
20
Means for actuating or controlling masts, platforms, or forks
22
Hydraulic devices or systems
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
13
Details of servomotor systems
02
Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
13
Details of servomotor systems
02
Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
04
for use with a single servomotor
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
1
Installations or systems with accumulators; Supply reservoir or sump assemblies
02
Installations or systems with accumulators
027
having accumulator charging devices
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
1
Installations or systems with accumulators; Supply reservoir or sump assemblies
02
Installations or systems with accumulators
027
having accumulator charging devices
033
with electrical control means
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
02
Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
04
for controlling the speed
05
specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
G
VEHICLE SUSPENSION ARRANGEMENTS
17
Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
02
Spring characteristics
04
Fluid-spring characteristics
056
Regulating distributors or valves
Applicants:
HYDAC FLUIDTECHNIK GMBH [DE/DE]; Justus-von-Liebig-Straße 66280 Sulzbach/Saar, DE
Inventors:
BRUCK, Peter; DE
SCHULZ, Frank; DE
Agent:
BARTELS UND PARTNER, PATENTANWÄLTE; Lange Straße 51 70174 Stuttgart, DE
Priority Data:
10 2017 008 359.206.09.2017DE
Title (EN) VALVE
(FR) SOUPAPE
(DE) VENTIL
Abstract:
(EN) The invention relates to a valve, in particular for use as a pressure balance (38) in lifting devices (2) that can be actuated hydraulically, comprising a valve housing (54) which has a control connection (40) and a fluid inlet (64) and a fluid outlet (66), and comprising a control piston (68) longitudinally movably arranged in the valve housing (54), which, counter to the action of an energy reservoir (70), in particular in the form of a compression spring, by means of a control pressure prevailing on the control connection (40), moves the control piston (68) into at least one position forming a fluid-carrying connection between the fluid inlet (40) and the fluid outlet (66) or blocks said connection Said valve is characterized in that in the control piston (68) there is arranged a first aperture (88), which connects the control connection (40) to a receiving chamber (62) and the energy reservoir (70) in a fluid-carrying manner, and in that a second aperture (90) is arranged in an intermediate part (72) in the valve housing (54), by means of which the receiving chamber (62) can be connected to a compensating chamber (92), which has a fluid-carrying connection (98 to) the fluid outlet (66).
(FR) L’invention concerne une soupape, destinée en particulier à être utilisée en tant que balance de pression (38) pour des dispositifs de levage à commande hydraulique (2), comportant un carter de soupape (54) qui présente un raccordement de commande (40) ainsi qu’une entrée de fluide (64) et une sortie de fluide (66), et comportant un piston de régulation (68) agencé mobile longitudinalement dans le carter de soupape (54) et qui, à l’encontre de l’action d’un accumulateur d’énergie (70), en particulier sous la forme d’un ressort de pression, au moyen d’une pression de commande régnant au niveau du raccordement de commande (40), amène le piston de régulation (68) dans au moins une position créant une communication fluidique entre l’entrée de fluide (64) et la sortie de fluide (66) ou bloque cette communication. La soupape est caractérisée en ce que dans le piston de régulation (68) est agencé un premier diaphragme (88) qui relie fluidiquement le raccordement de commande (40) à un espace de logement (62) de l’accumulateur d’énergie (70), et en ce que dans le carter de soupape (54) est agencé dans une partie intermédiaire (72) un second diaphragme (90) qui permet de relier l’espace de logement (62) à un espace de compensation (92) qui est en communication fluidique (98) avec la sortie de fluide (66).
(DE) Ein Ventil, insbesondere für den Einsatz als Druckwaage (38) bei hydraulisch betätigbaren Hubeinrichtungen (2), mit einem Ventilgehäuse (54), das einen Steueranschluss (40) sowie einen Fluideingang (64) und einen Fluidausgang (66) aufweist, und mit einem im Ventilgehäuse (54) längsverfahrbar angeordneten Regelkolben (68), der entgegen der Wirkung eines Energiespeichers (70), insbesondere in Form einer Druckfeder, mittels eines am Steueranschluss (40) herrschenden Steuerdrucks den Regelkolben (68) in mindestens eine eine fluidführende Verbindung zwischen dem Fluideingang (40) und dem Fluidausgang (66) bildende Stellung bringt oder diese Verbindung sperrt, ist dadurch gekennzeichnet, dass in dem Regelkolben (68) eine erste Blende (88) angeordnet ist, die den Steueranschluss (40) mit einem Aufnahmeraum (62) für den Energiespeicher (70) fluidführend verbindet, und dass eine zweite Blende (90) in einem Zwischenteil (72) im Ventilgehäuse (54) angeordnet ist, mittels deren der Aufnahmeraum (62) mit einem Ausgleichsraum (92) verbindbar ist, der in fluidführender Verbindung (98) mit dem Fluidausgang (66) steht.
front page image
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)