Rhodia Operations

Sogefi Filtration France

Sogefi Filtration

Jean-Jacques Falc'hon

Virginie Harle

Guy Monsallier

Christophe Guillon

Antoine Lacarriere

The fuel filter () contains a filter element () and an additive tank () in a housing (). The filter element is engaged against the removable cover () of the housing and has a filter medium () extending in an annular manner around an inner space (). An additive release device () extends into this inner space () to distribute liquid additive from the tank () into a fuel circulation circuit for an internal combustion engine. The additive selectively flows into a sealed distribution channel (DC) of the device () depending on an open or closed configuration of an actuator component () associated with the distribution channel. The distribution channel (DC) opens into a fuel channel () of the cover () that has a larger cross-section than the distribution channel (DC).

Fuel filter with additive release device

In a filter cartridge (CC) for a fuel filter, the filter element () and the additive module are connected and typically stacked so as to allow them to be integrally inserted into a filter housing. The substantially annular filter medium () delimits an inner space () into which at least one part () of the attachment end of the additive module can be engaged. The liquid additive is stored in a casing forming a tank () that is placed at a fuel pressure and delimits an internal volume (V) that can be varied so as to maintain an identical pressure between the liquid additive and the fuel at the periphery (V) of the tank (). The additive module has an external connection () with a liquid additive outlet pipe (), said external connection () including sealing means () for automatically closing the outlet pipe in a fluidtight manner when the external connection is in a disengaged state.

Fuel filter and cartridge for such a filter with an onboard additive tank

Growing community of inventors

Velizy Villacoublay, France

Jean-Jacques Falc'hon