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US 6,123,511 AGranted
Fuel supplying apparatus for drawing off fuel for a motor vehicle tank having a jet pump deflector for priming
AssigneeMarwal Systems
InventorBruno Sertier
Life of this patent
Estimating the term…
Abstract
An apparatus for drawing off fuel for a motor vehicle tank, the apparatus being of the type comprising a secondary reserve (20) suitable for being placed in a main tank (10), main pump (30) suitable for drawing fuel from the reserve (20), and auxiliary pump (40) of the jet pump type suitable for drawing fuel from the main tank and for transferring it to the secondary reserve (20). The body (41) of the jet pump (40) is angularly positioned to be vertical, with its outlet facing upwards.
Claims18
A fuel supply apparatus for drawing off fuel for a motor vehicle tank, the apparatus comprising:
- a secondary reserve (20) placed in a main tank (10);
- a main pumping means (30) for drawing fuel from the reserve (20);
- and
- a jet pump auxiliary pumping means (40) for drawing fuel from the main tank and for transferring the fuel to the secondary reserve (20), said jet pump having a body (41) with a venturi and the body (41) of the jet pump (40) being angularly positioned to be vertical, with its outlet facing upwards;
- said apparatus further having a deflector (60) placed facing an outlet (47) of the jet pump (40) to return the fuel coming from a nozzle of the jet pump (40) to an inside of the venturi to facilitate priming the jet pump, when the flow of fuel injected into the jet pump (40) is injected at a rate lower than a predetermined threshold, the deflector (60) being provided with a substantially hemispherical cavity (61) disposed coaxial with the outlet (47) of the jet pump, said hemispherical cavity being concave facing said outlet.
2 more elements
Dependencies are inferred from the claim text.