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SLIDE-TYPE THREE-WAY VALVE FOR HOT WATER SUPPLY SYSTEM
PROBLEM TO BE SOLVED: To prevent abrasion damage of a seal material due to sliding of a valve element in a slide-type three-way valve for a hot water supply system.SOLUTION: A three-way valve V switches a flow channel by rotating a valve element 21 on the same plane in a casing 10. A valve shaft 22 is axially movable, a valve separation cam is disposed between opposed faces of the valve element 21 and a partitioning wall 16, and a valve pressing cam is disposed between opposed faces of the valve element 21 and the casing 10. Cam faces 31, 41 of both cams have high/low position parts, and the valve element 21 is separated from a valve seat by sliding sliders 32, 42 on the cam faces 31, 41. By the contact and separation, the valve element 21 is surely closely brought into contact with the valve seat through the seal material 23 and closes a valve hole in closing the valve, and the seal material 23 moves without keeping into contact with the valve seat and the partitioning wall 16 in transferring from one valve hole 18a to the other valve hole 18b. Thus abrasion damage of the seal material 23 due to sliding of the valve element 21 can be reduced as much as possible.SELECTED DRAWING: Figure 1
【課題】給湯システム用スライド三方弁において、弁体のスライドによるシール材の摩耗損傷をなくす。【解決手段】ケーシング１０内で弁体２１を同一平面上で回動させて流路を切り替える三方弁Ｖである。弁軸２２は軸心方向に移動可能とし、弁体２１と隔壁１６の対向する面との間に弁離反用カムを設け、弁体２１とケーシング１０の対向する面との間に弁押圧用カムを設ける。両カムのカム面３１、４１は高低位部分を有し、そのカム面３１、４１に摺動子３２、４２が摺動することによって、弁体２１を弁座から接離する。この接離によって、閉弁時、弁体２１はシール材２３を介して弁座２１に確実に圧接して弁孔を閉じ、一方の弁孔１８ａから他方の弁孔１８ｂへの移行時には、シール材２３は弁座や隔壁１６に接することなく移動する。このため、弁体２１のスライドによるシール材２３の摩耗損傷は極力なくなる。【選択図】図１
SLIDE-TYPE THREE-WAY VALVE FOR HOT WATER SUPPLY SYSTEM
PROBLEM TO BE SOLVED: To prevent abrasion damage of a seal material due to sliding of a valve element in a slide-type three-way valve for a hot water supply system.SOLUTION: A three-way valve V switches a flow channel by rotating a valve element 21 on the same plane in a casing 10. A valve shaft 22 is axially movable, a valve separation cam is disposed between opposed faces of the valve element 21 and a partitioning wall 16, and a valve pressing cam is disposed between opposed faces of the valve element 21 and the casing 10. Cam faces 31, 41 of both cams have high/low position parts, and the valve element 21 is separated from a valve seat by sliding sliders 32, 42 on the cam faces 31, 41. By the contact and separation, the valve element 21 is surely closely brought into contact with the valve seat through the seal material 23 and closes a valve hole in closing the valve, and the seal material 23 moves without keeping into contact with the valve seat and the partitioning wall 16 in transferring from one valve hole 18a to the other valve hole 18b. Thus abrasion damage of the seal material 23 due to sliding of the valve element 21 can be reduced as much as possible.SELECTED DRAWING: Figure 1
【課題】給湯システム用スライド三方弁において、弁体のスライドによるシール材の摩耗損傷をなくす。【解決手段】ケーシング１０内で弁体２１を同一平面上で回動させて流路を切り替える三方弁Ｖである。弁軸２２は軸心方向に移動可能とし、弁体２１と隔壁１６の対向する面との間に弁離反用カムを設け、弁体２１とケーシング１０の対向する面との間に弁押圧用カムを設ける。両カムのカム面３１、４１は高低位部分を有し、そのカム面３１、４１に摺動子３２、４２が摺動することによって、弁体２１を弁座から接離する。この接離によって、閉弁時、弁体２１はシール材２３を介して弁座２１に確実に圧接して弁孔を閉じ、一方の弁孔１８ａから他方の弁孔１８ｂへの移行時には、シール材２３は弁座や隔壁１６に接することなく移動する。このため、弁体２１のスライドによるシール材２３の摩耗損傷は極力なくなる。【選択図】図１
SLIDE-TYPE THREE-WAY VALVE FOR HOT WATER SUPPLY SYSTEM
給湯システム用スライド式三方弁
HAYASHIDA KAZUYA (author) / YONEZAWA IKUO (author) / MIZUTA SEISHI (author)
2016-05-16
Patent
Electronic Resource
Japanese
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