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1. WO2020110391 - BALL-TYPE CHECK VALVE, VALVE ASSEMBLY, AND RECIPROCATING PUMP

Publication Number WO/2020/110391
Publication Date 04.06.2020
International Application No. PCT/JP2019/033389
International Filing Date 26.08.2019
IPC
F16K 15/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
04shaped as balls
F04B 43/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
02having plate-like flexible members, e.g. diaphragms
F04B 53/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
10Valves; Arrangement of valves
CPC
F04B 43/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
02having plate-like flexible members, e.g. diaphragms
F04B 53/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
10Valves; Arrangement of valves
F16K 15/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
04shaped as balls
Applicants
  • 日機装エイコー株式会社 NIKKISO EIKO CO., LTD. [JP]/[JP]
Inventors
  • 藤原 一生 FUJIWARA Issei
Agents
  • 特許業務法人YKI国際特許事務所 YKI INTELLECTUAL PROPERTY ATTORNEYS
Priority Data
2018-22373829.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BALL-TYPE CHECK VALVE, VALVE ASSEMBLY, AND RECIPROCATING PUMP
(FR) CLAPET ANTI-RETOUR DE TYPE À BILLE, ENSEMBLE CLAPET ET POMPE ALTERNATIVE
(JA) ボール型逆止弁、バルブアセンブリ、および、往復動ポンプ
Abstract
(EN)
A ball-type check valve is provided with: substantially cylindrical ball guides (64D, 64U), the bottom surface of which is completely open and the top surface of which has formed therein a fluid outlet; substantially disc-shaped valve seats (68) which are fitted respectively into the openings of the bottom surfaces of the ball guides, thereby forming a valve chamber between the valve seats and the respective upper surfaces of the ball guides (64D, 64U), said disc-shaped valve seats (68) having formed in the center thereof a fluid inlet (82) for a fluid, the upper surface of the valve seats functioning as a valve seat surface (84); and ball valves (66) which are arranged inside the respective valve chambers and closely adhere to the valve seat surfaces (84), thereby interrupting the passage of the fluid. Flanges (92) extend from the outer circumferential edge of a base portion of the valve seats (68) farther radially outward than the inner diameter of the ball guides (64D, 64U).
(FR)
L'invention concerne un clapet anti-retour de type à bille comprenant : des guides de bille (64D, 64U) sensiblement cylindriques dont la surface inférieure est entièrement ouverte et dans la surface supérieure desquels est formée une sortie de fluide; des sièges de clapet (68) sensiblement en forme de disque qui sont respectivement ajustés dans les ouvertures des surfaces inférieures des guides de bille, formant ainsi une chambre de clapet entre les sièges de clapet et les surfaces supérieures respectives des guides de bille (64D, 64U), une entrée de fluide (82) pour un fluide étant formée au centre desdits sièges de clapet (68) en forme de disque, la surface supérieure des sièges de clapet servant de surface de siège de clapet (84); et des clapets à bille (66) qui sont disposés à l'intérieur des chambres de clapet respectives et qui adhèrent étroitement aux surfaces de siège de clapet (84), interrompant ainsi le passage du fluide. Des brides (92) s'étendent à partir du bord circonférentiel extérieur d'une portion de base des sièges de clapet (68) plus loin radialement vers l'extérieur que le diamètre intérieur des guides de bille (64D, 64U).
(JA)
ボール型逆止弁は、底面が完全開口されるとともに上面に液体の流出口が形成された略円筒形のボールガイド(64D,64U)と、前記ボールガイドの底面開口に嵌めこまれて、前記ボールガイド(64D,64U)の上面との間に弁室を形成する略円板状のバルブシート(68)であって、その中央に液体の流入口(82)が形成されるとともに、その上面が弁座面(84)として機能する略円板状のバルブシート(68)と、前記弁室内に配置され、前記弁座面(84)に密着することで液体の通過を遮断するボールバルブ(66)と、を備え、前記バルブシート(68)の底部外周縁からは前記ボールガイド(64D,64U)の内径よりも径方向外側まで張り出すフランジ(92)が延びている。
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