CHANNEL SWITCH VALVE

• Main Authors: IWAHASHI TAKUO, MINAMINO KEIJI
• Format: Patent
• Language: English; Japanese
• Published: 30.08.2018
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; COMBUSTION ENGINES; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

PROBLEM TO BE SOLVED: To provide a channel switch valve capable of improving a sealing property between a second channel and a third channel, in the channel switch valve which switches the second channel and the third channel with regard to a first channel with a valve body to communicate with each other.SOLUTION: A channel switch valve 10 has a housing 11 formed with a first channel 20, a second channel 21, and a third channel 22; a partition wall which partitions the second channel and the third channel; and a valve body 30 which has two valve wing portions. On a second channel side valve wind surface at one of the valve wing portions, a second channel side projecting portion which holds the second channel side valve wind surface and a second channel side partition wall surface in a non-contacting state when the valve body communicates the first channel and the second channel, and contacts with the second channel partition wall surface so as to close a clearance from the second channel to the third channel. Similarly, on a third channel side valve wind surface at other of the valve wing portions, a third channel side projecting portio is provided so as to continue along the third channel valve wind surface.SELECTED DRAWING: Figure 5 【課題】第１流路に対して第２流路と第３流路を弁体で切り替えて連通させる流路切替弁において、第２流路と第３流路との間のシール性をより向上させることができる流路切替弁を提供する。【解決手段】流路切替弁１０は、第１流路２０と第２流路２１と第３流路２２が形成されたハウジング１１と、第２流路と第３流路を仕切る隔壁と、２つの弁翼部を有する弁体３０とを有する。一方の弁翼部における第２流路側弁翼面には、弁体が第１流路と第２流路を連通する場合に第２流路側弁翼面と第２流路側隔壁面とを非接触状態に保持するとともに第２流路から第３流路へと至る隙間を閉じるように第２流路側隔壁面に接触する第２流路側凸状部が、第２流路側弁翼面に沿って連続するように設けられている。同様に、他方の弁翼部における第３流路側弁翼面には、第３流路側凸状部が、第３流路側弁翼面に沿って連続するように設けられている。【選択図】図５