Caterpillar Inc.

Troy A Shawgo

Kris Edward Seitz

Dayao Chen

Daniel T Mather

Daniel Harry Killion

Christopher A Willey

Thomas N Brooks, Jr

Mary Jill Trumper

Andrew D Hill

Kenneth Alan Dust

Vishnu Irigireddy

Deepak Amaravadi

Matthew Hempel

Ryan M Ludwig

Alfred J Abraham

Michael E Nesbitt

A modular exhaust system is disclosed for treating the exhaust from a fossil fuel powered prime mover; the exhaust system includes bricks, inserts placed inside of the bricks and funnels to direct exhaust through various flow paths in order to treat the exhaust.

Modular exhaust system

A hydraulic system having an actuator having a piston and associated rod forming head and rod chambers and being adapted to move between retracted and extended positions within a cylinder, and first and second sources of fluid. A first pump provides fluid from the first source to the head chamber at a first pressure. At least one valve provides fluid from the second source at a second pressure to supplement fluid provided to the head chamber from the first pump when the second pressure is greater than the first pressure.

Method and arrangement for active make-up in an overrunning actuator

A method for detecting a crack in a frame is disclosed. The method includes sensing with a first pressure sensor a first pressure within a first sealed cavity. The first sealed cavity is interior to a first structure of the frame. Additionally, the method includes detecting a first change in the sensed first pressure. The method also includes determining preliminarily that a crack has formed in the first structure based on the detected change in the sensed first pressure. In addition, the method includes determining a criticality of the crack.

Frame crack detection method

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Forsyth, IL, United States of America

Troy A Shawgo