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1. (WO2017130455) PILOT OPERATED SWITCHING VALVE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/130455 International Application No.: PCT/JP2016/077580
Publication Date: 03.08.2017 International Filing Date: 16.09.2016
IPC:
F16K 3/26 (2006.01) ,F15B 11/00 (2006.01) ,F15B 11/028 (2006.01)
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
3
Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
22
with sealing faces shaped as surfaces of solids of revolution
24
with cylindrical valve members
26
with fluid passages in the valve 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
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
028
for controlling the actuating force
Applicants:
KYB株式会社 KYB CORPORATION [JP/JP]; 東京都港区浜松町二丁目4番1号世界貿易センタービル World Trade Center Bldg., 4-1, Hamamatsu-cho 2-chome, Minato-ku, Tokyo 1056111, JP
Inventors:
寺尾 剛 TERAO, Takeshi; JP
Agent:
後藤 政喜 GOTO, Masaki; JP
飯田 雅昭 IIDA, Masaaki; JP
須藤 淳 SUDOH, Jun; JP
Priority Data:
2016-01399328.01.2016JP
Title (EN) PILOT OPERATED SWITCHING VALVE
(FR) SOUPAPE DE COMMUTATION PILOTÉE
(JA) パイロット式切換弁
Abstract:
(EN) A pilot operated switching valve (50) is provided with: a housing hole (53) formed in a valve body (52) and having an opening end (53a); a spool (54) housed in a slidable manner within the housing hole (53) and permitting or blocking the flow of operating oil to a first relief valve (60); a pilot chamber (51) into which pilot pressure for pressing the spool (54) in the valve opening direction is introduced; and a spring (55) for pressing the spool (54) in the valve closing direction. The spool (54) has a bottom surface (54b) on which the pilot pressure acts so as to press the spool (54) in the valve opening direction. The area of the bottom surface (54b) is smaller than the cross-sectional areas of the housing hole (53).
(FR) L’invention concerne une soupape de commutation pilotée (50), laquelle comporte : un trou de logement (53) formé dans un corps de soupape (52) et comportant une extrémité d'ouverture (53a) ; une bobine (54) logée de manière coulissante dans le trou de logement (53) et permettant ou bloquant l'écoulement de l'huile de fonctionnement en direction d’une première soupape de sûreté (60) ; une chambre pilote (51) dans laquelle est introduite une pression pilote destinée à presser la bobine (54) dans le sens d'ouverture de la soupape ; et un ressort (55) destiné à presser la bobine (54) dans le sens de fermeture de la soupape. La bobine (54) possède une surface inférieure (54b) sur laquelle la pression pilote agit de manière à presser la bobine (54) dans le sens d'ouverture de la soupape. L’aire de la surface inférieure (54b) est inférieure aux sections transversales du trou de logement (53).
(JA) パイロット式切換弁(50)は、バルブボディ(52)に形成された開口端(53a)を有する収容穴(53)と、収容穴(53)に摺動自在に収容され、第1リリーフ弁(60)への作動油の流れを許容または遮断するスプール(54)と、スプール(54)を開弁方向に付勢するパイロット圧が導かれるパイロット室(51)と、スプール(54)を閉弁方向に付勢するばね(55)と、を備え、スプール(54)は、スプール(54)を開弁方向に付勢するようにパイロット圧が作用する底面(54b)を有し、底面(54b)の面積は、収容穴(53)の断面積よりも小さい。
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, KE, KG, 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: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
KR1020180085784CN108474484EP3385582US20190024811