US 12,404,940 B2
Multi-port valve and thermal management system having multi-port valve
Anbang Chen, Shen Zhen (CN); Xiaoyu Liu, Shen Zhen (CN); and Ruifeng Qin, Hong Kong (CN)
Assigned to JOHNSON ELECTRIC INTERNATIONAL AG, Murten (CH)
Filed by JOHNSON ELECTRIC INTERNATIONAL AG, Murten (CH)
Filed on Dec. 13, 2023, as Appl. No. 18/538,131.
Application 18/538,131 is a continuation of application No. PCT/CN2021/109078, filed on Jul. 28, 2021.
Claims priority of application No. 202121322264.0 (CN), filed on Jun. 15, 2021.
Prior Publication US 2024/0133470 A1, Apr. 25, 2024
Prior Publication US 2024/0229945 A9, Jul. 11, 2024
Int. Cl. F16K 11/085 (2006.01); B60H 1/00 (2006.01); F16K 27/06 (2006.01)
CPC F16K 11/0853 (2013.01) [B60H 1/00485 (2013.01); F16K 27/065 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A multi-port valve, comprising:
a valve housing comprising a cylindrical main body defining an inner cavity and a plurality of ports in fluid communication with the inner cavity;
a valve core rotatably accommodated in the inner cavity, the valve core defining a plurality of flow channels, each extending through a sidewall of the valve core to form two opposite open ends;
wherein the flow channels are in fluid isolation with each other inside the valve core, the valve housing is provided with a guider passage, and the plurality of flow channels include a first flow channel, a second flow channel and a third flow channel; the multi-port valve is operable to be switched between a plurality of work modes in response to the valve core rotating to different positions relative to the valve housing, the first flow channel is connected in series with the second flow channel via the guider passage but kept in fluid isolation with the third flow channel in response to one of the work modes; the first flow channel is connected in series with the third flow channel via the guider passage but kept in fluid isolation with the second flow channel in response to another one of the work modes wherein at least two of the ports of the plurality of ports are always in communication with the guider passage.