Patent ID: 7926506
Filing Date: 2011-04-19
Classification: F16K,Y10T

Abstract:
1. A tank flow path structure that comprises a conduit formation member that has a connection hole; and a cover that includes (i) a cover main body attached to the conduit formation member, (ii) a fluid guide member that projects from the cover main body and forms a connection conduit connected with a fuel tank through the connection hole, and (iii) a tubular member that forms a tube passage connected with the connection conduit, wherein the fluid guide member includes (i) a curved passage part that is disposed above the connection hole and (ii) a connection passage part that connects the curved passage part with the tubular member, wherein a lower end portion of the curved passage part conforms to an opening peripheral part of the connection hole, and wherein the curved passage part includes an inclined face that is formed to be inclined upward from a part of a periphery portion of the connection hole and disposed to face the connection hole, the inclined face being configured such that an outline shape on the inclined face is a straight line shape when the inclined face is cut by a plane parallel to a plane containing the connection hole, and is formed such that the connection conduit is squarely bent, wherein the area of the connection conduit is substantially the same as that of the connection hole, the connection conduit is formed to be simultaneously surrounded by the cover main body and the connection passage part, and the connection passage part is formed such that a non-round shaped cross section of the connection conduit gradually follows a round shaped cross section of the tube passage.