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US 9,752,544 B2Granted
Fuel system
AssigneeAudi AG
InventorHarald Hagen
Life of this patent
Estimating the term…
Abstract
A fuel system in particular of a motor vehicle, includes a fuel tank and a ventilation device for ventilating the fuel tank. The ventilation device has at least one separation device which has a temporary accumulator for liquid fuel. The separation device is made at least in part of a porous material and/or is filled with the porous material.
Claims14
A fuel system, comprising:
- a fuel tank;
- a ventilation device for ventilating the fuel tank, said ventilation device including at least one separation device receiving a mixture containing liquid and gaseous fuel and separating the liquid fuel from the gaseous fuel and having a temporary accumulator accumulating the separated liquid fuel;
- and
- a return line connecting the temporary accumulator with the tank for conducting fuel from the temporary accumulator to the fuel tank wherein the separation device has a plurality of chambers which are spaced from one another in a horizontal direction from an inlet towards an outlet of the separation device arranged on opposing sides of the separation device, and are separated from one another, at least in part, by vertical partitioning walls protruding vertically from opposing upper and lower horizontal sides of the separation device into the separation device in alternating succession along a flow path of the mixture of liquid and gaseous fuel, said plurality of chambers receiving the mixture containing liquid and gaseous fuel,
- wherein a first one of the chambers as considered in a horizontal direction from an inlet towards an outlet of the separation device has in its interior a porous element in contact with the mixture containing liquid and gaseous fuel,
- wherein the partitioning walls separating the chambers from one another are made, at least in part, of the porous material or are coated, at least in part, with the porous material.
3 more elements
A motor vehicle comprising:
- a fuel system including
- a fuel tank,
- a ventilation device for ventilating the fuel tank, said ventilation device including at least one separation device receiving a mixture containing liquid and gaseous fuel and separating the liquid fuel from the gaseous fuel and having a temporary accumulator accumulating the separated liquid mixture containing liquid and gaseous fuel, and
- a return line connecting the temporary accumulator with the tank for conducting fuel from the temporary accumulator to the fuel tank wherein the separation device has a plurality of chambers which are spaced from one another in a horizontal direction from an inlet towards an outlet of the separation device arranged on opposing sides of the separation device, and are separated from one another, at least in part, by vertical partitioning walls protruding vertically from opposing upper and lower horizontal sides of the separation device into the separation device in alternating succession along a flow path of the mixture of liquid and gaseous fuel, said plurality of chambers receiving the mixture containing liquid and gaseous fuel,
- wherein a first one of the chambers as considered in a horizontal direction from an inlet towards an outlet of the separation device has in its interior a porous element in contact with the mixture containing liquid and gaseous fuel,
- wherein the partitioning walls separating the chambers from one another are made, at least in part, of the porous material or are coated, at least in part, with the porous material.
3 more elements
Dependencies are inferred from the claim text.