Deere + Company

Scott Keith Farlow

Dennis Aaron Bowman

William E Crookes

Michael Deininger

Christopher A Bering

Thomas Frederick Tock

Andrew K Rekow

Ronnie F Burk

Andy Blaine Appleton

Paul Thomas Bruss

Charles Nicholas Warren

Adam Joe Shuttleworth

Ryan Michael Krogh

Matthew Robert Oliver

Ricky Dean Madson

Clinton Lane Lafferty

A fan assembly includes an axial flow fan between an inlet stator and an outlet stator. The inlet stator has inlet stator blades which extend outwardly from an inner ring. Each inlet stator blade has a downstream edge which has a tangent which is oriented at a first variable angle with respect to a plane which is perpendicular to the fan axis. The first angle increases with increasing distance from the inner support ring. The outlet stator has a plurality of outlet stator blades which extend outwardly from a second inner ring. Each outlet stator blade has an upstream edge which has a tangent which is oriented at a second variable angle with respect to a plane which is perpendicular to the fan axis. The second angle decreases with increasing distance from the inner ring.

Axial fan assembly

An axial flow fan assembly includes a plurality of fan blades surrounded by a shroud. The shroud includes an annular first wall which extends radially outwardly, an annular second wall which extends axially and radially outwardly, and an annular third wall which joins the first wall to the second wall. The third wall has a curved cross sectional shape, and has a minimum diameter part which is positioned approximately half-way between the upstream and downstream edges of the fan blades. There is a desired relationship between the radius of curvature of the third wall and the diameter of the fan. There is a desired relationship between the height of the first wall and the diameter of the fan. The fan blades have an upstream edge which is upstream with respect to the first wall.

Fan and shroud assembly

A fan duct assembly is provided for a vehicle having an engine-driven main cooling fan. The fan duct assembly includes a hollow housing and a pair of duct members which communicate with the housing and extend from the housing and laterally in side directions. An auxiliary cooling unit is received in the housing. A pair of auxiliary fans is received in the housing. Each fan is positioned between the auxiliary cooling unit and a respective one of the duet members. The hollow housing and the duct members are positioned in front of the main cooling fan. The hollow housing is positioned above a fan drive for driving the main cooling fan. Each of the fans draws air from a different direction.

Cooling fan duct assembly

A vehicle engine enclosure includes a tractor frame which supports an engine. A cooling system is mounted on the frame. The cooling system has a housing which surrounds cooling components. A hood is mounted on the frame and encloses the engine and the cooling system. The hood includes a top panel and left and right hood side panels. The top panel has outlet vents formed therein. A pair of left and right side plates are mounted on the frame. A rear end plate covers a rear end of the hood. A plurality of seals are placed between these components so that a duct is formed which collects hot air and moves it vertically through the vents to prevent re-ingesting of the hot air.

Tractor hood airflow system

A vehicle cooling package has a fan shroud mounted to a heat exchanger assembly. A diverter plate is mounted adjacent to the shroud and spaced therefrom with a fan interposed therebetween. A diverting surface of the shroud and the diverter plate are angled from the axis of the fan when the shroud and plate are assembled to the vehicle. A vehicle hood has upper and side surfaces each having air discharge apertures corresponding with the space between the diverting surface and the diverter plate when the hood is closed. The diverting surface and the diverter plate both extend fully to the hood assembly when the hood is closed. The angles of the diverting surface and the diverter plate closely match a natural discharge angle of the fan, so that air is discharged from the fan at a high velocity from under the hood through the air discharge apertures.

Vehicle cooling package

Large row crop tractor hood

Growing community of inventors

Cedar Falls, IA, United States of America

Scott Keith Farlow