Membrane stacking unit
AssigneeMahle International GmbH
InventorsTobias Baumgart, Stefan Moedinger, Samuel Kohler, Alexander Jerger
Life of this patent
Estimating the term…
Abstract
A membrane stacking unit for a humidifier for a vehicle powered by fuel cells is disclosed. The membrane stacking unit includes a cuboid membrane stack with a plurality of flexible membranes stacked in a stacking direction, with four side faces through which air can flow and two end faces through which air cannot flow. Two sealing frames are assigned to two opposing side faces of the membrane stack. The respective sealing frame has a circumferential sealing region and a circumferential region projecting vertically. The respective sealing frame has a recess that is filled with an adhesive for sealing to the membrane stack.
Claims20
A membrane stacking unit for a humidifier for a vehicle powered by fuel cells, comprising:
- a cuboid membrane stack with a plurality of flexible membranes stacked in a stacking direction,
- wherein the membrane stack has four side faces through which air can flow and which are aligned parallel to the stacking direction and two end faces through which air cannot flow and which are aligned transversely to the stacking direction,
- two sealing frames assigned to two opposing side faces of the membrane stack,
- wherein the respective sealing frame has a circumferential sealing region and the sealing region runs around the edge of the respective assigned side face and rests against it,
- wherein the respective sealing frame has a circumferential region projecting vertically from the sealing region and the circumferential region faces the membrane stack and runs around the edge of the membrane stack,
- wherein the respective sealing frame has, at least on a surface of the sealing region facing the assigned side face, a respective recess running around the assigned side face, and
- wherein the respective recess is filled with an adhesive and the respective sealing frame is sealed to the membrane stack via the adhesive.
A humidifier for a vehicle powered by fuel cells for humidifying a dry air with a humid air, comprising:
- a housing and a membrane stacking unit, the membrane stacking unit including:
- a cuboid membrane stack with a plurality of flexible membranes stacked in a stacking direction,
- wherein the membrane stack has four side faces through which air can flow and which are aligned parallel to the stacking direction and two end faces through which air cannot flow and which are aligned transversely to the stacking direction,
- two sealing frames assigned to two opposing side faces of the membrane stack,
- wherein the respective sealing frame has a circumferential sealing region and the sealing region runs around the edge of the respective assigned side face and rests against it,
- wherein the respective sealing frame has a circumferential region projecting vertically from the sealing region and the circumferential region faces the membrane stack and runs around the edge of the membrane stack, the respective sealing frame has, at least on a surface of the sealing region facing the assigned side face, a respective recess running around the assigned side face,
- wherein the respective recess is filled with an adhesive and the respective sealing frame is sealed to the membrane stack via the adhesive, and
- wherein the membrane stacking unit is accommodated in the housing and the side faces of the membrane stack within the housing are at least partially sealed from one another by the two sealing frames.
Dependencies are inferred from the claim text.