An automotive service liquid tank for receiving a service liquid of a motor vehicle, in particular an aqueous urea solution, has a tank wall that encloses a tank volume on the inside of the tank, wherein the tank has locally, by comparison with at least one other tank region, at least one region with enhanced thermal insulation, in order to influence a freezing behavior of the service liquid received in the tank in such a way that the service liquid, when the outside temperature drops, freezes later in the tank region with enhanced thermal insulation than in the at least one other tank region without enhanced thermal insulation. According to the invention it is provided that the enhanced thermal insulation is formed integrally with the tank wall.

This invention is a sensor probe, generally used in the oil fracking business, and includes structurally a pair of tube members, concentrically assembled, an inner housing tube, and an outer spout tube, affixed to a cap and adaptor, with the inner housing holding one or more sensors, to detect the level of fuel within the fuel tank of the fracking truck. The adaptor has a first aperture for attachment of the fuel line, for delivery of fuel in the space between the tube members, and the adaptor has a second aperture for connection of an electrical receptacle, for attachment with the electric lines leading from the various sensors, to the adaptor, for connection with a circuit line from a remote monitor.

This invention is a sensor probe, generally used in the oil fracking business, and includes structurally a pair of tube members, concentrically assembled, an inner housing tube, and an outer spout tube, affixed to a cap and adaptor, with the inner housing holding one or more sensors, to detect the level of fuel within the fuel tank of the fracking truck. The adaptor has a first aperture for attachment of the fuel line, for delivery of fuel in the space between the tube members, and the adaptor has a second aperture for connection of an electrical receptacle, for attachment with the electric lines leading from the various sensors, to the adaptor, for connection with a circuit line from a remote monitor.

A method for diagnosing fuel leakage of a vehicle includes: measuring a pressure of a fuel tank by a pressure sensor in a closed state of a fuel system during starting-off of the vehicle; measuring an inner temperature of the fuel tank by a temperature sensor; and diagnosing, by a controller, whether or not leakage occurs by performing different leakage diagnoses depending on a pressure condition of the fuel tank. Thus, the controller performs a first leakage diagnosis when a pressure value of the fuel tank, measured in the measuring the pressure of the fuel tank, is within an atmospheric pressure level; performs a second leakage diagnosis when the pressure value is higher than a positive pressure; and performs a third leakage diagnosis when the pressure value is lower than a negative pressure.

To provide a component mounting structure for a fuel tank capable of suppressing an increase in the weight of the tank body and reducing the weight and thickness of the fuel tank component, the component mounting structure includes: a tank body (2) provided with an oblong opening (2a); a pump module (3) serving as a tank component mounted to the tank body (2); a flange (5) that is provided to the pump module (3) so as to project out from an outer surface of the pump module (3), has an oblong contour larger than the opening (2a) and having a minor dimension (W2) smaller than a major dimension (L1) of the opening (2a), and is placed inside the tank body (2) through the opening (2a) with an edge thereof opposing the tank body (2) over an entire circumference; a sealing member (7) placed between the tank body (2) and the flange (5); and a fastening member (8b•9, 11•12) that holds the pump module (3) to the tank body (2) while compressing the sealing member (7) via the flange (5).

A fuel tank according to technology disclosed herein includes: a fuel tank main body that is made from resin, that stores fuel internally, and that is formed with a protruding attachment pin at a tank inner side; an in-built component installed inside the fuel tank main body; a fixed attachment portion that is provided at the in-built component, and that is fixed to the fuel tank main body; and a movable attachment portion that is provided at the in-built component, that is formed with a connecting portion formed with an attachment hole into which the attachment pin is inserted and anchored, and that is formed with a deformable portion having an end portion in the attachment hole abutting or facing the attachment pin, wherein the deformable portion is capable of expanding and contracting along an expansion and contraction direction of the fuel tank main body.

A fuel tank according to technology disclosed herein includes: a fuel tank main body that is made from resin, that stores fuel internally, and that is formed with a protruding attachment pin at a tank inner side; an in-built component installed inside the fuel tank main body; a fixed attachment portion that is provided at the in-built component, and that is fixed to the fuel tank main body; and a movable attachment portion that is provided at the in-built component, that is formed with a connecting portion formed with an attachment hole into which the attachment pin is inserted and anchored, and that is formed with a deformable portion having an end portion in the attachment hole abutting or facing the attachment pin, wherein the deformable portion is capable of expanding and contracting along an expansion and contraction direction of the fuel tank main body.

The present invention relates to a support arm assembly (39) for mounting in a fuel tank (1). The support arm assembly (39) comprises an arm (43) having a connector (51) for mounting the support arm assembly (39). A fuel fill limiter is mounted on the arm (43). The support arm assembly (43) can be installed in a fuel tank (1) through an access aperture (A) and mounted within the fuel tank (1). The present invention also relates to a fuel tank (1) in combination with the support arm assembly (43).

The present invention relates to a support arm assembly (39) for mounting in a fuel tank (1). The support arm assembly (39) comprises an arm (43) having a connector (51) for mounting the support arm assembly (39). A fuel fill limiter is mounted on the arm (43). The support arm assembly (43) can be installed in a fuel tank (1) through an access aperture (A) and mounted within the fuel tank (1). The present invention also relates to a fuel tank (1) in combination with the support arm assembly (43).

The invention relates to a drainage connector (1) having a cup-shaped housing (2) which comprises a housing base (3) and a housing wall (4). A connection geometry (5) is arranged on the outside on the housing wall (4) for inserting into a container opening, wherein an inlet pipe (9) of an inlet side (7) is guided to an outlet side (8) through the housing base (3) and an annular collecting chamber (10) is formed between the inlet pipe (9) and the housing wall (4). In order to discharge denser fluid which can accumulate in the collecting chamber, the housing (2) has a discharge channel (11), which leads from the collecting chamber (10) to the outlet side (8) and can be closed from the outlet side (8). The drainage connector is intended to be producible in a cost-effective manner at low cost and to have a low mass. For this purpose, the inlet pipe (9) on the outlet side (8) merges into an outlet pipe (13) which has a closing element (16) that can be moved between an open position and a closed position, wherein the housing (2) comprising the connection geometry (5), the inlet pipe (9) and the outlet pipe (13) is formed from plastic as a single piece.