WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018178961) HYDRAULIC SYSTEM
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/178961 International Application No.: PCT/IB2018/053503
Publication Date: 04.10.2018 International Filing Date: 18.05.2018
IPC:
F15B 20/00 (2006.01) ,E02F 9/22 (2006.01) ,F15B 11/02 (2006.01) ,F15B 11/042 (2006.01) ,F15B 11/17 (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
20
Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20
Drives; Control devices
22
Hydraulic or pneumatic drives
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
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
042
by regulating means in feed line
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
16
with two or more servomotors
17
using two or more pumps
Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA[JP/JP]; 1-1, Higashikawasaki-cho 3-chome Chuo-Ku, Kobe-Shi, Hyogo 6508670, JP
Inventors: KONDO, Akihiro; --
Agent: PATENT CORPORATE BODY ARCO PATENT OFFICE; 3rd Fl., Bo-eki Bldg., 123-1, Higashimachi Chuo-Ku, Kobe-Shi, Hyogo 6500031, JP
Priority Data:
2017-06752730.03.2017JP
Title (EN) HYDRAULIC SYSTEM
(FR) SYSTÈME HYDRAULIQUE
(JA) 油圧システム
Abstract:
(EN) This hydraulic system comprises: a first proportional solenoid valve and a second proportional solenoid valve that, the larger the operation signal output from a first operation device and a second operation device, output a higher secondary pressure; a third proportional solenoid valve that, when the first proportional solenoid valve is not functioning normally, outputs a higher secondary pressure the higher the operation amount of the first operation device, and that, when the second proportional solenoid valve is not functioning normally, outputs a higher secondary pressure the higher the operation amount of the second operation device; a first high pressure selection valve that selects and guides to a first regulator for a first pump, the highest amongst the secondary pressure output from the first proportional solenoid valve and the secondary pressure output from the third proportional solenoid valve; and a second high pressure selection valve that selects and guides to a second regulator for a second pump, the highest amongst the secondary pressure output from the second proportional solenoid valve and the secondary pressure output from the third proportional solenoid valve
(FR) La présente invention concerne un système hydraulique qui comprend : une première électrovanne proportionnelle et une deuxième électrovanne proportionnelle qui, plus le signal de fonctionnement délivré par un premier dispositif de commande et un second dispositif de commande est élevé, plus elles délivrent une pression secondaire plus élevée ; une troisième électrovanne proportionnelle qui, lorsque la première électrovanne proportionnelle ne fonctionne pas correctement, délivre une pression secondaire supérieure, plus la quantité de fonctionnement du premier dispositif de commande est élevée, et qui, lorsque la seconde électrovanne proportionnelle ne fonctionne pas correctement, délivre une pression secondaire plus élevée plus la quantité de fonctionnement du second dispositif de commande est élevée ; une première vanne de sélection haute pression qui sélectionne et guide vers un premier régulateur pour une première pompe, la plus haute parmi la sortie de pression secondaire en provenance de la première électrovanne proportionnelle et la sortie de pression secondaire à partir de la troisième électrovanne proportionnelle ; et une seconde vanne de sélection haute pression qui sélectionne et guide vers un second régulateur pour une seconde pompe, la plus haute parmi la sortie de pression secondaire en provenance de la seconde électrovanne proportionnelle et la sortie de pression secondaire à partir de la troisième électrovanne proportionnelle.
(JA) 油圧システムは、第1および第2操作装置から出力される操作信号が大きくなるほど高い二次圧を出力する第1および第2電磁比例弁と、第1電磁比例弁が正常に機能しないときには第1操作装置の操作量が大きくなるほど高い二次圧を出力し、第2電磁比例弁が正常に機能しないときには第2操作装置の操作量が大きくなるほど高い二次圧を出力する第3電磁比例弁と、第1電磁比例弁から出力される二次圧と第3電磁比例弁から出力される二次圧のうち高い方を選択して第1ポンプ用の第1レギュレータへ導く第1高圧選択弁と、第2電磁比例弁から出力される二次圧と第3電磁比例弁から出力される二次圧のうち高い方を選択して第2ポンプ用の第2レギュレータへ導く第2高圧選択弁と、を備える。
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, 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: Japanese (JA)
Filing Language: Japanese (JA)