Abstract: A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has ports at two or more levels along a height dimension of the valve body and a plug assembly that is rotatably disposed in the valve body. In addition, the valve may include a single-piece, conical seal disposed between the valve body and the plug assembly that is free of seams or joints.

Abstract: A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has ports at two or more levels along a height dimension of the valve body and a plug assembly that is rotatably disposed in the valve body. In addition, the valve may include a single-piece, conical seal disposed between the valve body and the plug assembly that is free of seams or joints.

Abstract: A rotary valve is used to control fluid flow within a fluid delivery system. The valve may include a valve body having multiple ports that are connected to the system, and a lid that closes an open end of the valve body. A diverter disposed in the valve body is driven to rotate via a shaft. The shaft protrudes from the valve body through a sleeve provided in the lid. The sleeve includes an internal shoulder. A seal retainer engages the sleeve and retains a shaft seal in a desired position between the shaft and the sleeve. The seal retainer includes an endplate having a central opening that receives the shaft, and a collar that protrudes from the endplate inner surface so as to reside between the sleeve and the shaft. An end face of the collar faces the shoulder with the seal disposed between the end face and shoulder.

Abstract: A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has radial ports at two or more levels along a height dimension of the valve body. In addition, the valve may include a plug assembly that is rotatably disposed in the valve body. The plug assembly may be made of first and second plug portions that cooperate to control fluid flow through the valve body. The valve allows valve configurations in which fluid passes between ports disposed at different axial levels of the valve body, and other configurations in which fluid passage is restricted to a single level depending on a rotational position of the plug assembly relative to the valve body.