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US 6,604,539 B1Granted
Fuel tank for a motor vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsManfred Strohmayer, Norbert Linz
Life of this patent
Estimating the term…
Abstract
A known fuel tank for a motor vehicle, in which an expansion tank is arranged outside the fuel tank, requires a relatively large space. A fuel tank for a motor vehicle which requires little space is provided by having the expansion tank installed inside the fuel tank, and by having all valves for venting the fuel tank, for limiting a filling level, for controlling a limit pressure defined in the fuel tank, and/or for protecting against leakage in the event of a rollover arranged on the expansion tank.
Claims38
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank, and
- wherein one of said valves is a venting valve which closes in a horizontal position of the fuel tank when a maximal filling level has been reached.
2 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank,
- wherein at least one of said valves is a filling limiting valve arranged below the expansion tank, and
- wherein the filling limiting valve closes when a maximal filling level has been reached during a fueling operation.
3 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank,
- wherein one of said valves is a limit pressure valve connected to the expansion tank, and
- wherein the limit pressure valve opens when a defined limit pressure in the fuel tank is exceeded.
3 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank, and
- wherein one of said valves is a float valve which will not close before the fuel tank is 100% filled and an expansion volume of 3 to 10% is present in the fuel tank.
2 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank, and
- wherein at least one of said valves is a float valve which closes in the case of an upward and/or downward position of the fuel tank.
2 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank,
- wherein at least one of said valves is a rollover valve connected to the expansion tank,
- wherein the rollover valve is situated outside or inside the fuel tank, and
- wherein one of said valves is a float valve which will not close before the fuel tank is 100% filled and an expansion volume of 3 to 10% is present in the fuel tank.
4 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank,
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover, and
- a carbon canister connected to the expansion tank by which venting can take place,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank, and
- wherein one of said valves is a float valve which will not close before the fuel tank is 100% filled and an expansion volume of 3 to 10% is present in the fuel tank.
3 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank, and
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank,
- wherein at least one of said valves is a rollover valve connected to the expansion tank,
- wherein the rollover valve is situated outside or inside the fuel tank, and
- wherein at least one of said valves is a float valve which closes in the case of an upward and/or downward position of the fuel tank.
4 more elements
A fuel tank for a motor vehicle comprising:
- an expansion tank,
- valves for venting the fuel tank, for limiting the filling level, for controlling a limit pressure defined in the fuel tank and for protecting against a leakage in the event of a rollover, and
- a carbon cannister connected to the expansion tank by which venting can take place,
- wherein all of the valves are interconnected with the expansion tank,
- wherein the expansion tank is installed inside the fuel tank, and
- wherein at least one of said valves is a float valve which closes in the case of an upward and/or downward position of the fuel tank.
3 more elements
Dependencies are inferred from the claim text.