Caterpillar Inc.

Matthew Earnest Williams

Matthew Thomas Kiser

Cornelius Nicolae Opris

Robert L Meyer

Dave Michael Thaler

Joanna Louise Costura

Anthony C Rodman

Michael James Pollard

David Michael Thaler

Hind Malaeb Abi-Akar

David Marchand

Gerald Murray Brown

J Josh Driscoll

John Gunzburger

Amy Fluharty

Jo L Costura

A retarding system for an electric drive machine () includes a direct current (DC) link (), at which a DC voltage is developed, disposed between a rectifier () and an inverter (). A first contactor switch () electrically communicates with a first rail of the DC link (), and a second contactor switch () electrically communicates with a second rail of the DC link (). A first resistor grid () is connected in series between the first contactor switch () and the second contactor switch (). The first resistor grid () dissipates electrical energy in the form of heat by conducting a current between the first rail and the second rail of the DC link () when the first contactor switch () and the second contactor switch () are closed.

Electric drive retarding system and method

An exhaust gas recirculation system for a power source, has at least one inlet port configured to receive at least a portion of a flow of exhaust produced by the power source. The exhaust gas recirculation system also has an electrode disposed upstream of the at least one inlet port and configured to charge particulate matter in the flow of exhaust. The exhaust gas recirculation system further has at least one collection surface configured to allow the at least one electrode to repel the charged particulate matter away from the at least one inlet port towards the at least one collection surface.

Exhaust gas recirculation system having an electrostatic precipitator

A particulate trap has a housing with an inlet and an outlet. The particulate trap also has a plurality of fluidly isolated filters stacked within the housing, between the inlet and the outlet. The stacked plurality of filters have a stack direction and a transverse direction and the flow of exhaust is directed through the plurality of filters in the transverse direction. The particulate trap further has an actuator with a blocking portion configured for linear movement to selectively block exhaust flow through each of the plurality of filters.

Particulate trap with selective blocking element

A filter element has a filter media and at least one base member. The filter element further has a ceramic paste connecting the filter media to the at least one base member.

Particulate trap filter element

An electrical connection element for providing an electrical connection to a porous material may include a first electrically conductive plate disposed on at least a portion of a first side of the porous material. A second electrically conductive plate may be disposed on at least a portion of a second side of the porous material, opposite to the first side. An electrically conductive material may impregnate the porous material in a region between the first and second electrically conductive plates, and an electrical connector may be attached to at least one of the first and second electrically conductive plates.

Electrical connection for porous material

Growing community of inventors

East Peoria, IL, United States of America

Matthew Earnest Williams