Deere + Company

Brian Bratvold

Pratir Punjani

Joseph R Gonsowski

Richard Edward Winsor

David W Peters

Gary Mark Frodsham

Yirot Pino

A vehicle having one or more pneumatic wheels, the vehicle including an internal combustion engine including a cylinder and an intake manifold in fluid communication with the cylinder, a tire inflation system configured to direct air into at least one of the one or more inflatable wheels, an air assembly configured to supply air at a first pressure higher than atmospheric pressure to both the intake manifold and the tire inflation system, where the air assembly includes a first compressor stage and a second compressor stage.

Electrified air system for use with central tire inflation system

An intake system for use with an internal combustion engine having one or more cylinders. The intake system including a compressor assembly having an inlet and an outlet, and where the outlet is configured to be open to and in fluid communication with at least one of the one or more cylinders. The intake system also includes a passageway extending between and in fluid communication with the inlet and the outlet and configured to direct a first flow of gasses and a controller in operable communication with the compressor assembly. Where the intake system is operable in a first mode in which the majority of gasses of the first flow of gasses flow through the passageway toward the outlet, and a second mode in which the majority of gasses of the first flow of gasses flow through the passageway toward the inlet.

Electrified air system for removing cold start aids

A vehicle having one or more pneumatic wheels, the vehicle including an internal combustion engine including a cylinder and an intake manifold in fluid communication with the cylinder, a tire inflation system configured to direct air into at least one of the one or more inflatable wheels, and a compressor assembly configured to supply air at a first pressure higher than atmospheric pressure to both the intake manifold and the tire inflation system.

A vehicle having one or more inflatable wheels, the vehicle including an internal combustion engine including a cylinder, a tire inflation system in fluid communication with and configured to selectively direct compressed air into at least one wheel of the one or more inflatable wheels, a compressor assembly having an outlet, where the compressor assembly is operable in a first mode, in which the outlet is in fluid communication with the cylinder of the internal combustion engine, and a second mode, in which the outlet is in fluid communication with the tire inflation system.

An internal combustion engine including a block, a head coupled to the block to at least partially define a cylinder therebetween, and a compressor assembly having an inlet and an outlet in fluid communication with the cylinder. Where the compressor is operable in a first mode, in which a first portion of the gasses exiting the outlet are directed to the cylinder and a second portion of the gasses exiting the outlet is recirculated back to the inlet.

A power unit for use with an internal combustion engine including a compressor housing, a compressor wheel positioned within and rotatable with respect to the compressor housing, a shaft coupled to the compressor wheel and rotatable together therewith, a motor assembly in operable communication with the shaft, and a controller in operable communication with the motor assembly. Where the controller is adjustable between a first mode of operation, in which the motor assembly applies torque to the shaft in a first direction of rotation, and a second mode of operation, in which the motor assembly unit applies torque to the shaft in a second direction of rotation opposite the first direction of rotation.

Enabling power unit protection modes without de rates

A power system including an engine, an intake system, an exhaust system, and an EGR system. The intake system is coupled to the engine and receives a fresh intake gas, the fresh intake gas having a fresh intake gas pressure. The exhaust system is coupled to the engine and expels an exhaust gas, the exhaust gas having an exhaust gas pressure. The EGR system is positioned so as to couple the intake system and the exhaust system. The EGR system does not comprise an EGR cooler. The EGR system bypasses periodically a portion of the fresh intake gas around the engine, from the intake system to the exhaust system, when the fresh intake gas pressure is greater than the exhaust gas pressure.

Power system comprising an EGR system

A negative rate shaping torque capsule is provided that effectively reduces torque rise of the engine. The device is part of the mechanical governor and allows fuel control rack position to decrease as engine speed decreases, thus reducing the amount of fuel delivered and reducing torque rise. The device works by the addition of a pivot arm to the existing main governor arm. One end of the pivot arm is pinned to the governor arm, and a roller is pinned to the opposite end. This roller bears on the fuel rack, maintaining rack position. An additional roller is pinned to the side of the pivot arm and bears on the tension arm. The travel of the pivot arm relative to the governor arm is limited in one direction by a physical stop, and in the other direction by a torque capsule (TC) spring. The TC spring is fixed to the governor arm and bears on the pivot arm roller opposite the tension arm. The TC spring holds the pivot arm roller against the tension arm. As engine speed increases the increased flyweight force causes an increase in the force of the pivot arm roller against the tension arm. At some point this force overcomes the preload on the TC spring causing the pivot arm to lift off its physical stop effectively causing the governor arm to bend at the joint where the pivot arm is pinned to the governor arm, in turn causing the rack roller end of the pivot arm to move in a direction of increasing rack travel. As engine speed continues to increase the rack roller continues to increase rack travel until the flyweight force overcomes the main governor spring and rack travel begins to decrease as the engine follows the governor droop curve up to the high idle speed.

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New Hartford, IA, United States of America

Brian Bratvold