Ford Global Technolgoies, LLC

Chip Hartinger

Gregory Daniel Goleski

Steven Anatole Frait

Steven Gerald Thomas

Jeffrey Edward Maurer

James Thomas Gooden

Andreas Evangelos Perakes

John Edmund Brune

Matthew David Hammond

Eva Barber

Steve A Frait

Monica R DeGraffenreid

A motor vehicle powertrain includes a multiple speed transmission including a first lube circuit that supplies hydraulic lubricant to components of the transmission, a first oil sump, and a first pump driveably connected to an engine for supplying oil at a first pressure to the lube circuit, a transfer case including a first output, a second oil sump located in the transfer case, a second pump located in the transfer case and driveably connected to the first output, and a check valve for alternately opening and closing a connection between the first pump and the lube circuit and for opening and closing a connection between the second pump and the lube circuit in response to differential pressure between an outlet of the first pump and an outlet of the second pump.

Transfer case for a motor vehicle powertrain

A system for controlling a flow rate in a vehicle transmission includes a source of fluid exiting a torque converter, an oil cooler, a source of control pressure, and a valve for regulating a rate of fluid flow from the torque converter to the cooler in response to the control pressure.

Control of the flow rate in a transmission oil cooler

The present invention comprises an oil system for supplying and controlling oil flow in an internal combustion engine having a variable camshaft timing (VCT) device, comprising a pressurized oil supply providing lubricating oil to the engine and the variable cam timing device and an oil circuit connecting the oil pump with the VCT and a main oil gallery of the engine via a valve apparatus. The valve apparatus responds to oil pressure near the outlet of the oil pump so that oil flows to the main oil gallery when oil pressure is above a predetermined pressure. When the VCT requests oil flow, oil pressure in the system drops. If the pressure drops below the predetermined pressure, the valve apparatus causes a reduction in flow to the main gallery.

Priority oil system

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Farmington Hills, MI, United States of America

Chip Hartinger