Abstract: The subject of the present invention is a method and a device for the separation of fuel-vapor/air mixtures into their components, in particular for purification of vapor mixtures, such as occur in fuel tanks of motor vehicles. A preseparator is arranged between the fuel tank and the filter. In the preseparator, the hydrocarbons are separated from the mixture and are supplied to the fuel tank again. The remaining mixture is supplied to the filter.

Abstract: The subject of the present invention is a method and a device for the separation of fuel-vapor/air mixtures into their components, in particular for purification of vapor mixtures, such as occur in fuel tanks of motor vehicles. For this purpose, a preseparator is arranged between the fuel tank and the filter. In said preseparator, the hydrocarbons are separated from the mixture and are supplied to the fuel tank again. The remaining mixture is supplied to the filter.

Abstract: The invention relates to a method and a device for deep-frying products to be deep-fried with hot fat. Fat that is conveyed in a circuit by a pump is heated, brought into contact with the product to be deep-fried and filtered. The quantity of fat circulating in the circuit is kept to a minimum by using a heating device in which a minimal volume of fat reaches the required temperature as quickly as possible for heating the fat and by using lines with as small cross-section as possible and which are as short as possible for transporting the fat.