Abstract: An air filter system for a motor vehicle includes a common housing, first and second D-shaped filter elements and a common cover. The common housing defines a first airflow chamber extending between a first inlet duct and a first outlet duct and a second airflow chamber extending between a second inlet duct and a second outlet duct. The first airflow chamber is fluidly separated from the second airflow chamber. The first D-shaped filter element is disposed in the first airflow chamber for filtering air passing through the first airflow chamber. The second D-shaped filter element is disposed in the second airflow chamber for filtering air passing through the second airflow chamber. The common cover is secured to the housing and closes the first airflow chamber and the second airflow chamber.

Abstract: An air filter system for a motor vehicle includes a common housing, first and second D-shaped filter elements and a common cover. The common housing defines a first airflow chamber extending between a first inlet duct and a first outlet duct and a second airflow chamber extending between a second inlet duct and a second outlet duct. The first airflow chamber is fluidly separated from the second airflow chamber. The first D-shaped filter element is disposed in the first airflow chamber for filtering air passing through the first airflow chamber. The second D-shaped filter element is disposed in the second airflow chamber for filtering air passing through the second airflow chamber. The common cover is secured to the housing and closes the first airflow chamber and the second airflow chamber.

Abstract: An air intake tract with a hydrocarbon adsorber is provided for adsorbing hydrocarbons of a motor vehicle. The hydrocarbon adsorber includes at least one first layer constructed of a hydrocarbon adsorbing material. Optionally, one or more stacked layers are provided including at least an uppermost layer and at least one intermediate layer. The at least one first layer includes a solid shape within an outer boundary and is adapted for sonic welding onto an interior of the air intake tract. The uppermost layer and any intermediate layers include an opening such that the uppermost layer provides access for a sonic welding tool from an upper side of the subassembly to the at least one first layer through the opening.

Abstract: An air filter system for a motor vehicle includes a common housing, first and second D-shaped filter elements and a common cover. The common housing defines a first airflow chamber extending between a first inlet duct and a first outlet duct and a second airflow chamber extending between a second inlet duct and a second outlet duct. The first airflow chamber is fluidly separated from the second airflow chamber. The first D-shaped filter element is disposed in the first airflow chamber for filtering air passing through the first airflow chamber. The second D-shaped filter element is disposed in the second airflow chamber for filtering air passing through the second airflow chamber. The common cover is secured to the housing and closes the first airflow chamber and the second airflow chamber.

Abstract: An air filter system for a motor vehicle includes a common housing, first and second D-shaped filter elements and a common cover. The common housing defines a first airflow chamber extending between a first inlet duct and a first outlet duct and a second airflow chamber extending between a second inlet duct and a second outlet duct. The first airflow chamber is fluidly separated from the second airflow chamber. The first D-shaped filter element is disposed in the first airflow chamber for filtering air passing through the first airflow chamber. The second D-shaped filter element is disposed in the second airflow chamber for filtering air passing through the second airflow chamber. The common cover is secured to the housing and closes the first airflow chamber and the second airflow chamber.

Abstract: A filter element having a filter media support structure as well as a filter assembly having interacting filter media support structure components are disclosed. The support structure includes a support grid arranged on a clean side of the filter media. At least one support member is secured onto the support grid and extends outwardly away from the support grid and the filter media. The at least one support member is configured and adapted to supportively engage a respective mating support member to transfer forces from the filter element to the housing.

Abstract: A subassembly for adsorbing hydrocarbons with an air intake system of a motor vehicle is provided. The subassembly includes a plurality of stacked layers constructed of a hydrocarbon adsorbing material. The plurality of stacked layers includes at least one lowermost layer and an uppermost layer. The at least one lowermost layer includes a solid shape within an outer boundary. The at least one lowermost layer is adapted for attachment to a component of the air intake system. The uppermost layer includes an opening such that the uppermost layer provides access from an upper side of the subassembly to the at least one lowermost layer through the opening for attaching the subassembly to the component.

Abstract: An air intake tract with a hydrocarbon adsorber is provided for adsorbing hydrocarbons of a motor vehicle. The hydrocarbon adsorber includes at least one first layer constructed of a hydrocarbon adsorbing material. Optionally, one or more stacked layers are provided including at least an uppermost layer and at least one intermediate layer. The at least one first layer includes a solid shape within an outer boundary and is adapted for sonic welding onto an interior of the air intake tract. The uppermost layer and any intermediate layers include an opening such that the uppermost layer provides access for a sonic welding tool from an upper side of the subassembly to the at least one first layer through the opening.

Abstract: A subassembly for adsorbing hydrocarbons with an air intake system of a motor vehicle is provided. The subassembly includes a plurality of stacked layers constructed of a hydrocarbon adsorbing material. The plurality of stacked layers includes at least one lowermost layer and an uppermost layer. The at least one lowermost layer includes a solid shape within an outer boundary. The at least one lowermost layer is adapted for attachment to a component of the air intake system. The uppermost layer includes an opening such that the uppermost layer provides access from an upper side of the subassembly to the at least one lowermost layer through the opening for attaching the subassembly to the component.

Abstract: A filter element having a filter media support structure as well as a filter assembly having interacting filter media support structure components are disclosed. The support structure includes a support grid arranged on a clean side of the filter media. At least one support member is secured onto the support grid and extends outwardly away from the support grid and the filter media. The at least one support member is configured and adapted to supportively engage a respective mating support member to transfer forces from the filter element to the housing.

Abstract: A filter element has a filter media hollow body with a hollow interior circumferentially enclosing an outflow passage. A second filter as a bypass filter element is arranged at or integrated into the end cap the filter element. The bypass filter element is configured as an ambient airflow restriction device providing a significantly higher pressure drop relative to the in the filter media of the filter element, the significantly higher pressure drop is operable to limit or prevent airflow through the auxiliary inflow path. When the primary inflow path is obstructed, the ambient airflow restriction device operates to provide auxiliary airflow into the outflow passage, bypassing filtering of the filter media hollow body of the filter element.