Donaldson Comapny, Inc.

Olivier H Ronneau

Mathijs Verstraete

Gert Proost

Jason A Tiffany

Massimo Movia

Michael R Carlson

Andrew Christian Dahlgren

Eli Payton Ross

Brent L Anderson

Wim Van Gelder

Daniel L Tuma

Richard Dejong

Richard Patrick DeJong

Jacques V Van Peteghem

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

A filtering apparatus (12) includes a filter cartridge (28) which may be replaced or cleaned and re-used. The filter apparatus also includes a heat exchanger (62) which receives cooling air to cool the exhaust prior to filtering. The cooled exhaust does not pose combustion problems for soot or the filter material in the cartridge (28). In addition to cooling the exhaust, a temperature-sensitive valve (36) opens and closes to prevent excessively hot exhaust gas from reaching the filter cartridge (28). The valve (36) includes bi-metal discs (52) which bow outward when the temperature increases and flatten when the temperature decreases. The discs engage a cover to an orifice and slide axially to open and close the valve (36). The apparatus also may include a back pressure valve (72) which will open when the exhaust flow is backed up to prevent damage to the engine.

Method and apparatus for filtering engine exhaust

Growing community of inventors

Chapelle-Lez-Herlaimont, Belgium

Olivier H Ronneau