Caterpillar Inc.

Gregory Wayne Tomlins

Robert L Meyer

Mark Steven Diekevers

Steven J Funke

William H Lane

Richard A Crandell

Dong Fei

James C Durand

Michael Paul Withrow

Neil Alan Terry

Cheryl Lynn Sellers

Craig F Habeger

Scott Howard Magner

Chandini Muniratnam Ammineni

Anil Raina

Alexander G Panov

Daniel S Nordyke

Glenn Mongillo

Baldev Patel

A cored wire for hybrid laser cladding includes a hollow metal sheath and a core powder composition. The core powder can include, by weight percent: carbon from about 0.8% to about 1.2%, manganese from about 1% to about 1.4%, silicon from about 0.8% to about 1%, chromium from about 22% to about 30%, titanium from about 0.5% to about 2%, vanadium from about 0.5% to about 2%, boron from about 0.8% to about 1.2%, phosphorus from 0% to about 0.04%, and sulfur from 0% to about 0.03%, the balance of the core powder composition being substantially iron. Components and methods using the cored wire are also disclosed.

Hybrid laser cladding composition and component therefrom

A ripper tool for a tunnel boring machine includes a tool body and a plurality of cutting element inserts. The tool body has a plurality of socket cavities. A tool body blank can be heat treated to increase the hardness of the tool body blank. The socket cavities can be machined in the tool body blank after the tool body blank is heat treated. The cutting element inserts are mounted to the tool body. The cutting element inserts are respectively press fit in the socket cavities. The ripper tool can be pivotably mounted to a cutter head of the TBM.

Cutting head tool for tunnel boring machine

A method for altering an operating condition of a filter includes actively increasing the temperature of the filter to a desired temperature below a regeneration temperature and sensing a filter operating condition at about the desired temperature. The method also includes comparing the sensed filter operating condition to an expected filter operating condition range and actively increasing the temperature of the filter to the regeneration temperature in response to the comparison.

Regeneration strategy

According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device includes a gas pressurization assembly. An element of the assembly is removably attachable to a first orifice of the filtering device. The system also includes a vacuum source fluidly connected to a second orifice of the filtering device.

Filter service system

In accordance with an embodiment of the present invention, a method of controlling an internal combustion engine system having an internal combustion engine is disclosed. The internal combustion engine includes an engine block defining a plurality of combustion chambers, an intake air system in fluid communication with the combustion chambers and providing intake air thereto, an exhaust gas system in fluid communication with the combustion chambers and carrying exhaust gas therefrom, a cooling system having a cooling fluid circulated therein and a recirculated gas system in fluid communication with the exhaust gas system and intake air system wherein a portion of the exhaust gas is routed from the exhaust gas system to the intake air system. The method includes sensing at least two internal combustion engine system operating parameters, inputting sensed operating parameters into a controller, storing at least one predetermined constant in the controller, determining a cooling fluid heat threshold using predetermined logic with the controller in response to the at least two internal combustion engine operating parameters and the at least one predetermined constant, and controlling the internal combustion engine system in a predetermined manner in response to reaching the cooling fluid heat threshold.

Control strategy for an internal combustion engine

Growing community of inventors

Peoria, IL, United States of America

Gregory Wayne Tomlins