Pump with a multi-layered bead gasket

A pump for applying fluid to a unit, the pump comprising:

• (a) a pump housing featuring
• a housing circumferential wall which surrounds a delivery chamber of the pump,
• a housing end-facing wall exhibiting an outer housing end-facing surface facing axially away from the delivery chamber,
• an inlet for the fluid and
• an outlet for the fluid which emerges on the outer housing end-facing surface;
• (b) a delivery member which can be moved within the delivery chamber in order to deliver the fluid from a low-pressure side of the pump comprising the inlet to a high-pressure side of the pump comprising the outlet;
• and
• (c) a bead gasket comprising a first gasket layer and a second gasket layer which lie axially one above the other,
• (d) wherein:
• the first gasket layer comprises a first gasket loop, and the second gasket layer comprises a second gasket loop;
• the first gasket loop surrounds a first inner region through which fluid can flow in an axial plan view, and the second gasket loop surrounds a second inner region through which the fluid can flow in the plan view;
• and the first inner region and the second inner region overlap each other at least partially in the plan view;
• (e) wherein the first gasket loop is a first bead loop comprising a gasket end-facing surface for an axial contact and the second gasket loop is a second bead loop comprising a gasket end-facing surface for an axial contact,
• (f) wherein one of the first gasket loop and the second gasket loop axially faces the outer housing end-facing surface and surrounds the outlet in the plan view in order to seal off the outlet,
• (g) wherein the bead gasket comprises one or more folding portions which connect(s) the first gasket layer and the second gasket layer, and wherein the first gasket layer, the second gasket layer and the respective one or more folding portions are formed in one piece, and the first gasket layer and the second gasket layer are folded one onto the other by folding over the respective one or more folding portions, such that they face each other in the axial direction, and
• (h) wherein the first gasket layer and the second gasket layer are formed contiguously, via the one or more folding portions, from a sheet of metal.