Weldable vapor vent valve for fuel tanks

A weldable vent valve for welding to a polymeric automotive fuel tank, the valve comprising:

• a main valve body of a non-weldable material having a lower portion extending into the interior of the fuel tank through an aperture in the fuel tank wall, and an upper portion defining a valve vent outlet extending above the fuel tank when the main valve body is so positioned;
• a weldable connector formed separately from the main valve body, the weldable connector including axial assembly means to subsequently axially connect the upper portion of the main valve body to the weldable connector, the weldable connector further defining a connector/valve interface portion mating with the upper portion of the valve body when the main valve body and the weldable connector are assembled, and a nozzle outlet in vapor communication with the valve vent outlet when assembled therewith, a portion of the weldable connector contacting the fuel tank wall when the main valve body is operatively positioned in the fuel tank aperture;
• and
• seal means on the upper portion of the main valve body for providing a seal at the connector/valve interface when the main valve body and the weldable connector are assembled.

A weldable vent valve for welding to a polymeric automotive fuel tank, the valve comprising:

• a main valve body of a non-weldable material having a lower portion extending into the interior of the fuel tank through an aperture in the fuel tank wall, and an upper portion defining a valve vent outlet extending above the fuel tank when the main valve body is so positioned;
• a separate weldable connector including axial assembly means to axially connect the upper portion of the main valve body to the weldable connector, the weldable connector further defining a connector/valve interface portion mating with the upper portion of the valve body, and a nozzle outlet in vapor communication with the valve vent outlet when assembled therewith, a portion of the weldable connector in contact with the fuel tank wall when the main valve body is operatively positioned in the fuel tank aperture;
• and
• seal means on the upper portion of the main valve body for providing a seal at the connector/valve interface when the main valve body and the weldable connector are assembled, wherein the upper portion of the main valve body includes a plug portion supporting the seal means, the plug portion inserted with the connector/valve interface portion of the weldable connector in axial fashion for sealing engagement therewith.

A weldable vent valve for welding to a polymeric automotive fuel tank, the valve comprising:

• a main valve body of a non-weldable material having a lower portion extending into the interior of the fuel tank through an aperture in the fuel tank wall, and an upper portion including a valve vent outlet extending above the fuel tank when the main valve body is so positioned;
• a weldable connector formed separately from the main valve body, the weldable connector defining a connector/valve interface portion for axially mating with the upper portion of the valve body when the main valve body and the weldable connector are assembled, and a nozzle outlet in vapor communication with the valve vent outlet when assembled therewith, a portion of the weldable connector in contact with the fuel tank wall when the main valve body is assembled therewith and operatively positioned in the fuel tank aperture;
• and
• seal means on the upper portion of the main valve body, the seal means sealingly engaging the weldable connector at the connector/valve interface when the main valve body and the weldable connector are axially assembled.