US 11,988,289 B2
Bypass valve and water purifier
Jun Tao, Shanghai (CN)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/276,003
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US); and Jun Tao, Shanghai (CN)
PCT Filed Oct. 18, 2019, PCT No. PCT/IB2019/058924
§ 371(c)(1), (2) Date Mar. 12, 2021,
PCT Pub. No. WO2020/084424, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 201811259219.8 (CN), filed on Oct. 26, 2018.
Prior Publication US 2022/0042610 A1, Feb. 10, 2022
Int. Cl. F16K 11/076 (2006.01); C02F 1/28 (2023.01); C02F 1/42 (2023.01); C02F 1/44 (2023.01)
CPC F16K 11/076 (2013.01) [C02F 1/283 (2013.01); C02F 1/42 (2013.01); C02F 1/441 (2013.01); C02F 1/444 (2013.01); C02F 2201/005 (2013.01); C02F 2301/043 (2013.01); C02F 2307/10 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A bypass valve, comprising a valve core and a valve housing, wherein
the valve core is provided with a first inlet, a first outlet, a first channel, and a first annular seal, the first inlet and the first outlet are disposed at intervals in an axial direction, the first annular seal is fitted on an outer side surface of the valve core between the first inlet and the first outlet, and the first channel is disposed within the valve core and communicates with the first inlet and the first outlet;
the valve housing is provided with a first opening, a second opening, an inner space, and a bypass opening, the first opening and the second opening are disposed at intervals in an axial direction, the inner space communicates with the first opening and the second opening, and the bypass opening is provided on a side wall of the valve housing between the first opening and the second opening and communicates with the inner space and an outer space outside the valve housing;
the valve core is disposed in the inner space of the valve housing and is capable of rotating in the inner space around the axial direction;
the bypass opening and the first circular seal are further configured in such a manner that, when the valve core rotates, the first annular seal is capable of partitioning the bypass opening into two parts, and an axial position of a part of the first annular seal in contact with the bypass opening varies with the rotation of the valve core; and
wherein a gap is formed between the outer side surface of the valve core and an inner side surface of the valve housing, and the first annular seal partitions the gap into two parts, wherein a part of the gap close to the first outlet forms a second channel and the bypass valve is configured in such a manner that a first fluid enters the first channel through the first inlet and then flows into the second channel through the first outlet, a second fluid flows into the second channel through the bypass opening is mixed with the first fluid and then flows out of the bypass valve.