TABLE OF CONTENTS Engine filtration is the term applied to the filtration requirements of engine powered vehicles and equipment. This includes automobiles, trucks, farm equipment, off the road construction equipment, aircraft, railroad trains, boats, and a multitude of specialty engine operated equipment ranging from mine drilling equipment to lawn mowers. Turbines are considered as a form of engine and therefore gas turbine filtration applications are included in this category. The global market size of engine filtration (estimated to be 150,000-200,000 tons/year in 2005) combined with the complexities of the various filtration mechanisms justifies a whole chapter in this book for the subject. To illustrate the complexities of engine filtration, Figure 9.1 provided by Durst et al. [187] identifies 25 of the various filters that can be found in an automobile. An engine powered vehicle requires both liquid and air filters. Table 9.1 from Hollingsworth & Vose Company is a sampling of the broad range of filter grades used in engine filters.
Reproduced with permission of Verlag Moderne Industrie Germany [187] p.5.
| Type | Description | Application | Basis weight(g/m 2) | Caliper(mm) | Corrugation depth (mm) | Mullen burst, kPa or MD/CD Tens. str (kg/cm) | Gurley stiffness (mg) | Maximum pore isopropanol ( ?m) | Mean flow pore (Coulter) ( ?m) | Permeability at l/dm 2/min @ 12.7mm WG |
|---|---|---|---|---|---|---|---|---|---|---|
| Auto Air | No-cure | Radial air | 147 | .85 | Flat | 176 | 3,066 | 139 | 38.4 | 287 |
| Economical no-cure |
