Valve device with floating valve core

A valve device, characterized by the valve device comprising:

• a housing internally provided with at least two fluid passages and sealing members located at a port of each fluid passage;
• and
• a valve core disposed in the housing, the valve core comprising at least one closing wall, and the valve core being configured to be capable of rotating around an axis in a first direction in the housing to enable the closing wall to align with the corresponding fluid passage to close the aligned fluid passage,
• wherein the valve core is configured to be capable of making a linear motion in a second direction in the housing to allow the closing wall to tightly abut against the sealing member at the closed fluid passage, wherein the second direction forms an angle with an imaginary bisecting plane of the closing wall of the valve core, the angle is 30 to 45 degrees.

A valve device, characterized by the valve device comprising:

• a housing internally provided with at least two fluid passages and sealing members located at a port of each fluid passage;
• and
• a valve core disposed in the housing, the valve core comprising at least one closing wall, and the valve core being configured to be capable of rotating around an axis in a first direction in the housing to enable the closing wall to align with the corresponding fluid passage to close the aligned fluid passage,
• wherein the valve core is configured to be capable of making a linear motion in a second direction in the housing to allow the closing wall to tightly abut against the sealing member at the closed fluid passage, wherein the second direction forms an angle with an imaginary bisecting plane of the closing wall of the valve core, the angle is 45 to 60 degrees.