Caterpillar Inc.

Clean Fuels Technology, Inc.

Other

Clean Fuel Technology, Inc.

Dennis L Endicott

Gerald N Coleman

Edward A Jakush

James Richard Weber

Maarten Verkiel

James Josh Driscoll

Stephen Anthony Faulkner

Isaac Ethan Fox

Alex Nikolov

Kevin Patrick Duffy

Michael Patrick Harmon

Stephan Donald Roozenboom

Jonathan P Kilkenny

Hind Malaeb Abi-Akar

David R Wisley

Ben Evans

James Dean Dunbar

J Joshua Driscoll

Erin Elizabeth Atterberry

An exhaust treatment system for a power source has an air induction system, an exhaust system and a recirculation system. The exhaust system includes a particulate filter. The recirculation system is configured to draw exhaust from downstream of the particulate filter and direct the exhaust to the air induction system. The recirculation system includes an exhaust gas cooler, and an acidic debris filter.

Exhaust treatment system having an acidic debris filter

A condensation dispersion device for use with a power source having an exhaust recirculation system is disclosed. The condensation dispersion device may have a housing with an inlet configured to receive exhaust, and an outlet configured to discharge exhaust. The condensation dispersion device may also have a first static mixing device disposed within the housing and being configured to redirect condensate from an internal wall of the housing into the exhaust.

EGR equipped engine having condensation dispersion device

A method of operating an internal combustion engine includes operating the engine in a first combustion mode. The method also includes switching operation of the engine to a second combustion mode. The method includes directing an exhaust stream of the engine into contact with a NOx adsorber substantially only during the operation in the second combustion mode.

Method of operating an internal combustion engine

Improved highly stable formulation for aqueous fuel emulsion compositions with a water continuous phase, having reduced NOx emissions. The fuel emulsion formulation includes diesel fuel, purified water, and an additive package that includes one or more surfactants, lubricity additive, cetane improver, anti-corrosion additive, and an alcohol or other suitable antifreeze, the emulsion having an average droplet size of less than 10 microns.

High stability fuel compositions

Oil continuous fuel emulsion composition having high stability and reduced nitrogen oxide emissions. The fuel emulsion formulation includes diesel fuel, purified water, and an additive package that includes, among other additives, a combination of surfactants, including a primary surfactant, such as a fatty acid diethanolamide, a block copolymer, and a polymeric dispersant.

Fuel emulsion compositions having reduced NOx emissions

A condensation reduction device for use with an engine is disclosed. The condensation reduction device may have a first body member configured to receive a flow of exhaust, and a reservoir in fluid communication with the first body member to collect condensate from the flow of exhaust. The condensation reduction device may further have a passageway in fluid communication with the reservoir to direct the collected condensate from the reservoir back into the flow of exhaust.

Condensation reduction device for an EGR equipped system

The present method for producing a high stability, low emission, invert fuel emulsion composition comprises blending additives having a surfactant package with a hydrocarbon petroleum distillate fuel in an in-line blending station to create a composition. The surfactant package includes a primary surfactant, a block copolymer, and a polymeric dispersant, and the hydrocarbon petroleum distillate fuel is a continuous phase of the emulsion. The method also comprises blending purified water with the composition in a second in-line blending station to produce a second composition and aging the second composition in a reservoir to produce an aged composition and passing the aged composition through a shear pump to a storage tank.

Stabile invert fuel emulsion compositions and method of making

New technologies, such as NOx adsorber catalytic converters, are being used to meet increasingly stringent regulations on undesirable emissions, including NOx emissions. NOx adsorbers must be periodically regenerated, which requires an increased fuel consumption. The present disclosure includes a method of regenerating a NOx adsorber within a NOx adsorber catalytic converter. At least one sensor positioned downstream from the NOx adsorber senses, in the downstream exhaust, at least one of NOx, nitrous oxide and ammonia concentrations a plurality of times during a regeneration phase. The sensor is in communication with an electronic control module that includes a regeneration monitoring algorithm operable to end the regeneration phase when a time rate of change of the at least one of NOx, nitrous oxide and ammonia concentrations is after an expected plateau region begins.

NOx adsorber and method of regenerating same

Methods and apparatuses for regenerating a NOx adsorber coupled with an exhaust of an engine. An actuator drives a throttle valve to a first position when regeneration of the NOx adsorber is desired. The first position is a position that causes the regeneration of the NOx adsorber. An actuator drives the throttle valve to a second position while regeneration of the NOx adsorber is still desired. The second position being a position that is more open than the first position and operable to regenerate a NOx adsorber.

Method and apparatus for regenerating NOx adsorbers

An improved method for producing highly stabile aqueous fuel emulsions. The method provides for selectively combining prescribed quantities of diesel fuel, purified water, alcohol, and an additive package and emulsifying the fuel mixture using a high shear mixer. The optimum viscosity and stability in the aqueous fuel emulsion is achieved by bypassing a selected quantity of the fuel emulsion around the high shear mixing device such that the final fuel emulsion includes a bi-modal droplet size distribution having droplet sizes less than about 15 microns in size. Additional stability and performance features of the aqueous fuel emulsion are attributed to the contents of the additive package that includes a combination of surfactants, lubricity additive, cetane improvers, citric acid, and methanol wherein each of the various additives may perform multiple functions.

Growing community of inventors

Peoria, IL, United States of America

Dennis L Endicott