To provide a flow path switching device which can prevent leakage of a fluid in a seal member while inhibiting size increase of a physical constitution of the device.SOLUTION: In one embodiment of the disclosure, at a flow path switching device 1, a first seal member 17 comprises: a held portion 61 which is held by a first rotation disc 13 or an upper housing 11; and a sliding portion 62 which slides along the upper housing 11 or the first rotation disc 13 when the first rotation disc 13 is driven. The sliding portion 62 is provided with a recessed portion 63 which is formed recessed toward the held portion 61 side. A cross-sectional outer shape of the first seal member 17 is formed in a mountain shape which expands laterally toward the held portion 61 side with the sliding portion 62 side set as a peak.SELECTED DRAWING: Figure 24
【課題】装置の体格の大型化を抑制しつつ、シール部材における流体の漏れを防ぐことができる流路切替装置を提供すること。【解決手段】本開示の一態様は、流路切替装置1において、第1シール部材17は、第1回転ディスク13または上ハウジング11に保持される保持部61と、第1回転ディスク13を駆動させるときに上ハウジング11または第1回転ディスク13を摺動する摺動部62と、を備え、摺動部62には保持部61側に向って凹んで形成される凹部63が設けられており、第1シール部材17の横断面の外形は、摺動部62側を頂上として保持部61側にて横方向に広がる山型に形成されている。【選択図】図24
FLOW PATH SWITCHING DEVICE
流路切替装置
02.04.2025
Patent
Elektronische Ressource
Japanisch
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