Caterpillar Inc.

Leonard George Wheat

Jade Marie Katinas

Philip Carl Spengler

Douglas Alexander Rebinsky

Dong Fei

Mark Andrew McElroy

Beth Ann Sebright

Linxiao Yu

Robert E Hawbaker

Jason Adam Smid

Cliff James Salisbury

Jason William Sanders

Poh Heng Teh

Jennifer Joan Leustek

A system for simulating an engine environment during engine operation is disclosed. The system includes a surface. The system also includes a liquid delivery device configured to deliver a liquid to the surface. The system further includes a temperature controller operably coupled to the surface, and the system is configured to cause condensation of a fluid on the surface.

Systems and methods for simulating an engine environment

A method of detecting an internal flaw in a particulate filter includes a step of coupling ultrasonic transducer with the particulate filter. The method also includes a step of moving at least one of the ultrasonic transducer and the particulate filter relative to the other. Consistent coupling of the ultrasonic transducer with the particulate filter is maintained during the moving step. Ultrasonic energy is transmitted from the ultrasonic transducer through a majority of a volume of the particulate filter. The method also includes a step of determining if the particulate filter includes an internal flaw using the ultrasonic energy.

System and method for detecting internal flaws in a particulate filter

A method is provided for nondestructive adhesion testing of a coating on a component surface through ultrasonic cavitation. The disclosed method includes submerging a tip end of a vibratory horn in a liquid medium and operating a converter, coupled to the vibratory horn, at a frequency and an amplitude to generate a cavitation field within the liquid medium. A first portion of a component having an adhered coating on at least a portion of the component is moved into the cavitation field. Areas of the coating that are poorly adhered to the component are located by the removing areas of the coating that are poorly adhered, while not removing areas of the coating that are properly adhered to the component.

Nondestructive adhesion testing by ultrasonic cavitation

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Manito, IL, United States of America

Leonard George Wheat