Connection head with a return cavity
A connection head for being arranged in an orifice of a fluid tank with a return cavity in the form of a radial duct is provided. The return cavity overcomes the problems of the formation of air bubbles in the tank and enhances the functioning of the sensor in the tank.
1. A connection head for being arranged in an orifice of a fluid tank, the connection head comprising:
an electrically insulating base, wherein the base is provided with at least a first opening for receiving a tube, wherein the tube comprises a first electrically conductive tube, and wherein the connection head further comprises at least a first electrically conductive grounding element with at least a first receptacle, wherein the first electrically conductive grounding element is arranged such that the first electrically conductive tube is electrically connected to the first electrically conductive grounding element; and
a return cavity integrated in the connection head.
2. The connection head according to claim 1 , wherein the base of the connection head is extruded to form a radial duct terminating at the return cavity.
3. The connection head according to claim 2 , wherein the radial duct is slanted along an axial direction.
4. The connection head according to claim 1 , wherein the return cavity terminates at an opening on a peripheral surface of the connection head.
5. The connection head according to claim 1 , wherein the first receptacle of the first electrically conductive grounding element is aligned with a first opening of the base to encompass the first electrically conductive tube.
6. The connection head according to claim 1 , wherein the first electrically conductive grounding element comprises a metal plate.
7. The connection head according to claim 6 , wherein the metal plate is fixed to the base by at least one screw.
8. A connection head configured for attachment with an orifice of a fluid tank, the connection head comprising:
a base formed from an electrically insulating material, wherein the base comprises:
at least a first opening for receiving a first electrically conductive tube;
a first electrically conductive grounding element that is electrically connected to the first electrically conductive tube, wherein the first electrically conductive grounding element is electrically connected with a first region of a first grounding lead, and wherein a second region of the first grounding lead is connectable to a ground potential;
a return cavity integrated in the connection head comprising a direct opening on a peripheral surface of the connection head.
9. The connection head according to claim 8 , wherein the first grounding lead is at least partially surrounded by the electrically insulating material.
10. The connection head according to claim 8 , wherein the first electrically conductive grounding element comprises a first receptacle that is aligned with the first opening of the base to encompass the first electrically conductive tube.
11. The connection head according to claim 10 , wherein the first receptacle comprises a metal plate, and wherein the metal plate is attached to the base.
12. The connection head according to claim 8 , further comprising a suction tube that is connected with and extends to the base for transporting a fluid from the fluid tank to the connection head.
13. A connection head configured for attachment with an orifice of a fluid tank, the connection head comprising:
a base formed from an electrically insulating material, wherein the base comprises:
a first opening for receiving a first electrically conductive tube therein;
a first electrically conductive grounding element that is electrically connected to the first electrically conductive tube, wherein the first electrically grounding element is electrically connected within the connection head with a first region of a first grounding lead, wherein the first grounding lead is at least partially surrounded by the electrically insulating material, and wherein a second region of the first grounding lead is connectable to a ground potential;
a support tube connected with the connection head and extending downwardly a distance therefrom; and
a return cavity integrated in the connection head comprising a direct opening on a peripheral surface of the connection head.
14. The connection head according to claim 13 , further comprising a heating coil and a suction tube that each connect with the connection head and each extend downwardly a distance therefrom.