Donaldson Comapny, Inc.

Jason A Tiffany

Richard Patrick DeJong

Gregory S Tronnes

Qiong Gao

Giancarlo M Izzi

Mathijs Verstraete

Gert Proost

Richard Dejong

Massimo Movia

Michael R Carlson

Andrew Christian Dahlgren

Brent L Anderson

Eli Payton Ross

Wim Van Gelder

Olivier H Ronneau

Keith Alderson

Richard Patrick Dejong

Richard P Dejong

Olivier Ronneau

Fibrous filter medium that includes a surface-loading filter layer comprising fine fibers having an average diameter of less than 1 micron; a depth loading filter layer; and a support layer; wherein the layers are configured and arranged for placement in a gas stream with the surface loading filter layer being the most upstream layer.

Filter media, elements, and methods

Included herein are filtration systems that can proactively pulse clean filter elements in response to anticipated changes, such as anticipated changes in filtration performance or anticipated changes in filtration system demand. In an embodiment, a filtration system is included having a filter element mount for a filter element, a compressed gas supply, and a valve, wherein opening the valve results in a pulse of gas directed at the filter element. A control circuit can control the valve. A communications circuit can receive data related to an anticipated change, such as data regarding an anticipated change in filtration performance and/or data regarding an anticipated change in filtration system demand. The control circuit can execute operations based on the anticipated change data such as adjusting a pressure drop threshold and initiating proactively opening the valve in the absence of a pressure drop threshold being crossed. Other embodiments are also included herein.

Filtration systems with proactive pulse cleaning

A gas turbine air intake system uses a filter element having a seal member with radial projections and radial recesses. The seal member forms a seal with components on the tube sheet of the system and at the end opposite of the tube sheet. At the end opposite of the tube sheet, there can be an assembly cover, or alternatively, an additional filter cartridge.

Filter element, systems, and methods

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Bloomington, MN, United States of America

Jason A Tiffany