Abstract: A filter device for filtering liquids in internal combustion engines has a filter housing and a filter element inserted into the filter housing. A liquid to be filtered is introduced into the filter housing and flows through the filter element. An overflow valve is arranged between an entry side and a clean side of the filter element and has a valve body. The overflow valve is in an open position when a pressure of the liquid at the entry side of the filter element exceeds a threshold value. The valve body of the overflow valve is a sealing hose placed between the entry side and the clean side onto a cylindrical supporting body arranged in the filter housing. Flow openings are provided in the cylindrical supporting body. The sealing hose is arranged at the clean side of the supporting body.

Abstract: Disclosed is a filter device, especially for filtering liquids in internal combustion engines, comprising a filter element (4) that is to be penetrated in a radial direction and is disposed in a filter housing (2). A check valve (10) which is embodied as a nozzle valve and is provided with flexible wall sections is inserted into the filter housing. The internal faces of said flexible wall sections define a flow outlet while the external faces thereof are in contact with the liquid in the filter device.