Gm Global Technolgoy Operations, Inc.

Gregory Chessky

Richard A Pashnik

Pete R Garcia

Jonathan Hottenstein

Sean Simpson

David Wilkinson

A system for de-aerating fluid in a motor vehicle transmission includes a first rib in a first compartment of the transmission, a second rib spaced apart from the first rib, and a third rib spaced apart from the second rib. The first rib and the second rib define a first channel with an inlet region, and the second rib and the third rib define a second channel with an outlet hole. The second rib is positioned between the first rib and the second rib and has a vertical height that is less than the vertical heights of the first rib and the third rib. As the temperature of the fluid rises, the fluid flows into the inlet region, rises up the first channel, flows over the second rib into the second channel, and out of the second channel through the outlet hole.

System for de-aerating fluid in a transmission

A method and system of determining a volume of a vehicle component. The system includes a computing device having a host application and analytical tool. The host application is configured to present an interface to a user and allow the user to modify a component model. The component model includes a three-dimensional representation of at least a portion of a vehicle component and has a virtual housing at least partially defining an internal cavity. The analytical tool is configured to generate a solid body representing the internal cavity and calculate a volume of the solid body. The analytical tool is configured to determine whether the internal cavity is bounded by the virtual housing, counting a number of external and internal faces traversed by the fluid during the simulated fluid flow, and determining a shortest path between the selected external and internal faces.

Method and system for determining a volume of a vehicle component and the disposition and connectedness of subcomponents therein

A transmission includes a transmission case, a rotatable component disposed within the transmission case, and a sump disposed below the rotatable component for storing a hydraulic fluid. A gear train baffle is disposed between the rotatable component and the transmission case. The baffle includes an outer surface, an inner surface defining a cavity that substantially encircles the rotatable component, and a plurality of tabs disposed radially outward from the outer surface. The plurality of tabs are in contact with the transmission case to prevent the baffle from rotating. A plurality of openings are located at a bottom portion of the baffle. The plurality of openings extend through the baffle between the inner surface and the outer surface. The hydraulic fluid from the rotatable component collects on the inner surface of the baffle and is directed out of the cavity through the plurality of openings into the sump.

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Walled Lake, MI, United States of America

Gregory Chessky