Gm Global Technolgoy Operations, Inc.

Steven G Bryde

Michael B Fleck

Christopher E Whitney

Ning Jin

Thomas A Spix

Birendra P Bhattarai

John L Lahti

Cheryl A Williams

R Travis Schwenke

Alan E Rice

Karl R Gilgenbach

James B Nicholson

Kevin W Herrala

Terrence J Christensen

Michael S Ferrand

Marcos Basile Teixeira

Marcio Caldas Camargo Lima

Antonio Rangel Machado

Marcos Castanho Santanna

Michael D Pepperman

A universal oil pan die tooling is provided for forming alternative oil pans for alternative internal combustion engines with and without an oil cooler circuit. The die tooling includes a first die member defining a cavity and a second die member having a protruding portion designed to be inserted in the cavity of the first die member to define a mold cavity therebetween that defines a shape of the oil pan. A first die insert is used along with the first die member and the second die member to form oil pans for use with an engine having an oil cooler. An alternative second die insert is used in place of the first die insert along with the first die member and the second die member to form oil pans for use with an engine without an oil cooler.

Oil pan casting with optional oil cooler provisions

A dual flow check valve includes a valve body having an inner valve cavity, a first valve opening, and a second valve opening. The dual flow check valve further includes a seal disposed within the valve body. The seal is operatively coupled within the valve body such that the seal is configured to move relative to the valve body between an open position, in which the seal allows the gas to flow between the first and second valve openings through the inner valve cavity, and a closed position, in which the seal inhibits the gas and the liquid from flowing through the inner valve cavity from the first valve opening to the second valve opening.

Dual flow check valve for positive crankcase ventilation system

A vertically disposed oil pan baffle includes a body having first and second opposing side walls joined by a third wall, and an opposing fourth wall. Each of the first and second side walls is configured to conform with first and second internal surfaces of an oil pan. A metering opening is formed in one of the third and fourth walls. The metering opening is configured and disposed to control a rate of flow of oil through the vertically disposed oil pan baffle.

Vertically disposed oil pan baffle

An engine assembly includes an engine structure, an intake air assembly and a crankcase ventilation line assembly. The engine structure defines a cylinder bore, an intake port in communication with the cylinder bore, and a crankcase. The air intake assembly is in communication with the intake port. The crankcase ventilation line assembly includes a fresh air line and an oil surge protection device. The fresh air line is in communication with the crankcase and the air intake assembly and provides fresh air to the crankcase. The oil surge protection device is in communication with the fresh air line and defines an oil obstruction inhibiting oil flow to the air intake assembly while allowing air flow between the crankcase and the air intake assembly.

Engine assembly including positive crankcase ventilation with oil surge protection

A method of operating an engine control system includes reducing pressures within cylinders of an engine based on an auto start command signal including: receiving a torque request signal; calculating a powertrain output torque; and controlling air flow to the engine based on the powertrain output torque. During a startup of the engine: electric motor torque is increased to a predetermined level and reduced to increase a current speed of the engine; combustion torque of the engine is activated and increased after the current speed is within a predetermined range and a manifold absolute pressure is less than a predetermined level; and the electric motor torque is increased based on a crankshaft output torque signal to increase a crankshaft output torque subsequent to the reducing of the electric motor torque and while performing the activating of the combustion torque.

Hybrid vehicle auto start systems and methods

A radial lip seal including an annular support with a radially extending portion having an inner periphery. An annular seal lip formed of elastomeric material such as polytetrafluoroethylene is connected to the inner periphery. The lip has an inner side adapted to seal a circumferential surface of a shaft and an outer side. The outer side of the lip has a plurality of grooves or protrusions to vary the diameter of the lip. The varied diameter creates a substantial leak between the outer side of the lip and the circumferential surface. The leak created is sufficient to be detected by a low-pressure air test.

Radial lip seal

Growing community of inventors

Davisburg, MI, United States of America

Steven G Bryde