International Engine Intellectual Property Company, LLC

Steven Joseph Dickerson

James T Beaucaire

Michael A Majewski

Steven M Ryan

Paul Gottemoller

Luis Carlos Cattani

Martin R Zielke

Qianfan Xin

John J Bryjak

Dirk Jungen

Steve H Clarke

Artur A Dudzik

Richard Franzwa

A method of selective hydrocarbon injection in in-cylinder late post injection in an exhaust manifold of a diesel engine comprises providing the exhaust manifold of the diesel engine comprising a plurality of cylinders, an exhaust gas recirculation valve disposed adjacent the exhaust manifold, a diesel particulate filter disposed adjacent the exhaust manifold, an exhaust gas recirculation cooler disposed adjacent the exhaust manifold offset from the exhaust gas recirculation valve, and an engine control unit operatively connected with the diesel engine for controlling at least the plurality of cylinders. At least a first cylinder is disabled via the engine control unit to reduce post injection of hydrocarbons during regeneration of the diesel particulate filter. The diesel particulate filter is regenerated. In-cylinder late post injection of hydrocarbons is conducted during regeneration of the diesel particulate filter via cylinders other than the first cylinder.

Systems and methods for selective hydrocarbon injection

A method of controlling cooling flow through a coolant system of an internal combustion engine having an electronic control module, a cooling throttle, an EGR cooler, and an interstage cooler is provided. A pressure within a coolant system is determined. A temperature within the coolant system is determined. A temperature of exhaust gas exiting an EGR cooler is determined. A temperature of intake air exiting an interstage cooler is determined. A position of a cooling throttle within the coolant system is adjusted based upon at least one of the determined pressure within the coolant system, temperature within the coolant system, temperature of exhaust gas exiting the EGR cooler, and temperature of intake air exiting an interstage cooler being above respective predefined thresholds to adjust fluid flow within the coolant system.

Engine with coolant throttle and method for controlling the same

An engine cooling fan control strategy includes measuring an engine coolant temperature using a sensor connected to the engine, measuring an engine oil temperature using a sensor connected to the engine, selecting a first value from a maximum engine coolant temperature threshold calibration curve stored in the control system based on the engine oil temperature, selecting a second value from a minimum engine coolant temperature threshold calibration curve stored in the control system based on the engine oil temperature, and placing the engine cooling fan in driven relationship with the engine when the engine coolant temperature exceeds the first value, and placing the engine cooling fan in non-driven relationship with the engine when the engine coolant temperature drops below the second value.

Engine cooling fan control strategy

An engine braking system includes a turbocharger having a turbine and a compressor. An exhaust manifold includes a first pipe for channeling a first portion of the engine exhaust and a second pipe for channeling a second portion of the engine exhaust. The first and second pipes are connected to an inlet of the turbine. A cross pipe, as part of an exhaust gas recirculation (EGR) conduit, is open between the first and second pipes and at one end to the remaining portion of the EGR conduit. A valve can be arranged within the cross pipe and ca be operable in a first mode of operation to block flow between the first and second pipes and allow flow between the first pipe and the remaining portion of the EGR conduit and to allow flow between the first and second pipes and the inlet of the turbine. The valve is operable in a second mode of operation to allow flow between the first and second pipes, and to reduce or block flow between the second pipe and the turbine inlet.

Exhaust system for engine braking

A high pressure hydraulic fitting () includes a body () having a central passage (), a channel (), a threaded section (), and an extension section (), wherein the threaded section () is disposed between the channel () and the extension section (), and wherein the central passage () fluidly connects a first distal end () with a second distal end () of the body (). A first o-ring () is in the channel (). A locking nut () is engaged to the body (). The locking nut () has an internal threaded section () that is arranged to mate with the threaded section () on the body ().

Hydraulic fitting

A turbocharger () for an internal combustion engine () includes a turbine having a divided turbine housing (). A first inlet port () may be connected to a first volute that is formed in the turbine housing (), and a second inlet port () connected to a second volute that is formed in the turbine housing (). A center housing may be connected to the turbine housing (), and a compressor () may be connected to the center housing. An exhaust gas valve () is in fluid communication with the first inlet port () and arranged to at least partially constrict a flow of exhaust gas from entering the first inlet port () of the turbine (), but not constrict the flow of exhaust gas from entering the second inlet port ().

Exhaust gas throttle for divided turbine housing turbocharger

A fluid pressure near a filter () is measured and compared () to a predetermined value that is based on one or more engine operating parameters. When the measured fluid pressure deviates enough from the predetermined value by an established amount, an indication of the deviation may be provided to notify of a potential problem with the filter (), such as obstruction, restriction, or some form of clogging.

Method and apparatus for indicating a potential fluid filter problem

A method and apparatus for adjusting fuel injection timing detects () a change in the number of fuel injections for a combustion chamber (). During a timing adjustment period, the timing for fuel injection(s) may be adjusted () incrementally, e.g., in a series of steps or increments, and/or based at least in part on the time elapsed since the detected of the change in the number of fuel injections.

Method and apparatus for adjusting fuel injection timing

A fuel system for a diesel engine may have a fuel tank, a fuel pump, a fuel filter module, and a fuel rail. The fuel filter module has a vacuum side and a pressure side. The vacuum side is connected to the fuel tank and to the inlet side of the fuel pump. The pressure side is connected to the outlet side of the fuel pump and to the fuel rail. The fuel filter module has a pressure regulator and a filter element in the pressure side. The pressure regulator is disposed between the outlet side of the fuel pump and the filter element. The pressure regulator recirculates unfiltered fuel to the vacuum side of the fuel filter module.

Fuel system

This invention provides a pump with a close-mounted valve for a hydraulic fuel system in an internal combustion engine. The hydraulic fuel system may have a high pressure pump connected to a low pressure side and high pressure reservoirs. The pump has a drive shaft, a shaft cylinder, one or more cylinders, and a close-mounted valve. The close-mounted valve has a valve body, a valve spool, a valve spring, and a valve coil. The valve body is positioned inside a shaft cavity formed by the shaft cylinder. The close-mounted valve may control the volume and pressure to reduce or eliminate the dumping of high-pressure hydraulic fluid in the hydraulic fuel system.

Growing community of inventors

Lake in the Hills, IL, United States of America

Steven Joseph Dickerson