Abstract: The present invention provides a rotary axial fan and a stator fan for moving air through a heat exchanger for an internal combustion engine cooling system. The fan includes a hub and primary fan blades extending radially from the hub. An annular shroud is attached to the primary fan blades and supported coaxially with the central axis to limit the radial flow of air along the primary fan blades. A plurality of secondary fan blades are interposed between the primary fan blades and each have a first end attached to the annular shroud and terminate in a second end that is not attached to the hub. The stator fan includes a shroud with an array of stator fan blades supporting a hub for the radial axial fan. The size, orientation and material characteristics of the stator fan blades improve sound reduction and heat transfer of the rotary axial fan assembly.

Abstract: A fluid valve for use in proportioning/mixing fluid between at least one input and at least one output. The fluid valve including a rotary actuated diverter for controlling fluid flow between the inlet(s) and outlet(s). The fluid valve may be configured to support proportioning any number of fluids, including liquids and gases, for any number of applications, including automotive and industrial applications.

Abstract: A centrifugal fluid pump for circulating fluid through an engine's cooling system includes a body configured to be at least partially received within a bore in the engine, a shaft having an impeller rotatably connected to the body, the impeller being positioned to move fluid through the engine, and a shroud supported on the body and positioned between the duct and the impeller when the body is at least partially received within the bore. The shroud has an opening to permit the movement of fluid to the impeller and may be configured to engage an inner surface of the bore. The shroud remains stationary with respect to the bore as the shaft and the impeller rotate and the shroud and the bore cooperate to inhibit fluid from passing between the inner surface of the bore and the shroud to a position that is upstream of the shroud.

Abstract: A fluid valve for use in proportioning/mixing fluid between at least one input and at least one output. The fluid valve including a rotary actuated diverter for controlling fluid flow between the inlet(s) and outlet(s). The fluid valve may be configured to support proportioning any number of fluids, including liquids and gases, for any number of applications, including automotive and industrial applications.