Fuel tank made of thermoplastic material comprising baffle components provided therein in the form of at least one baffle element (2) comprising at least one wall portion (4) which is clamped approximately centrally and/or at the end, so that said wall portion may perform relative movements in relation to the tank, caused by splashing movements of the fuel, at least one fastening foot being provided for the clamping, the base thereof being provided with at least one through-hole, through which the fastening foot is riveted and/or welded to the tank wall (2).

A fuel tank baffle assembly is provided for installation in a fuel tank, the baffle assembly comprising a main body having a first end section, a second end section, and an intermediate section interconnecting the first and second end sections. Operably associated with the main body is at least one deployable auxiliary baffle structure. The auxiliary baffle structure is configured to be positioned in an undeployed state during installation into a fuel tank, thereby defining a first installation width of the baffle assembly. Following installation, the auxiliary baffle structure is deployed into an extended position, thereby defining an operational width for subsequent usage. The operational width is greater than the installation width.

A filler pipe includes a retainer capable of retaining a fuel filler gun inserted through a fuel filler opening, and a pipe main body connecting the retainer and a fuel tank. The retainer has a stopper limiting the insertion of the fuel filler gun. A flow guide that guides the flow of fuel is provided on the downstream side of the stopper with respect to the flow direction of fuel supplied from the fuel filler gun. The flow guide has a guide portion extending at an angle with respect to the flow direction of fuel.

A fuel tank has a welded member that is welded inside a fuel tank body. The welded member includes a welded face that is welded on at least one of a first tank face and a second tank face which faces the first tank face, of the fuel tank body, and wherein the welded face includes a facing side in a concave shape that faces a given point determined based on a displacement of distance between the first tank face and the second tank face when the fuel tank body receives an internal pressure.

A fuel tank has a welded member that is welded inside a fuel tank body. The welded member includes a welded face that is welded on at least one of a first tank face and a second tank face which faces the first tank face, of the fuel tank body, and wherein the welded face includes a facing side in a concave shape that faces a given point determined based on a displacement of distance between the first tank face and the second tank face when the fuel tank body receives an internal pressure.

A fuel tank for a motor vehicle, which can be designed as a blow-molded hollow plastics tank, into the interior of which a functional component support is inserted, to which are fastenable functional components, for example a fuel pump, a level indicator or valves, and which is supported on opposite inner sides of the fuel tank wall via at least two strut arrangements spaced apart from each other in a longitudinal direction of the support. The functional component support has at least one compensating portion which is positioned between the two strut arrangements and with which a length compensation between the functional component support and the fuel tank takes place in order to dissipate mechanical component stresses.

A process is disclosed for manufacturing at least one wall of a tank and comprises at least a first layer of thermoplastic and a second foam-based layer. The second foam-based layer forms at least part of an anti-slosh device, and the process is characterized in that the first layer and the second layer are molded in the same mold.

A baffle assembly of this application has an assembling connector for maintaining a coupled state by means of a vertical binding force F.sub.verticality for locking a baffle plate, which has fluid-passing through-holes, to the side surface of a baffle body, which has fluid-passing through-holes, and lateral tightening force F.sub.horizontality for pressing the same, such that the baffle body and the baffle plate can be assembled in a fitted manner and, particularly, a double locking state is formed by the vertical binding force F.sub.verticality and the lateral tightening force F.sub.horizontality, thereby preventing a change of the coupled state.

A fuel tank structure is obtained that can prevent or suppress excessive stress concentrating at fixed portions of a separator and an inner wall of a fuel tank main body. A separator for reducing flow noise of fuel is disposed at an interior of a fuel tank that accommodates fuel. Projecting portions that serve as fixed portions that are fixed at two or more places to an inner wall of the fuel tank, are provided at the separator. Deformation portions that allow deformation of the separator are formed between the projecting portions at the separator.

The invention relates to a fuel container (1) of thermoplastic plastics material having an upper base (2) and a lower base (3) which are supported against each other by means of at least one column-like support element (4), wherein the support element (4) is connected in a positive-locking manner and/or materially engaging manner to a wall (6) of the upper base on the one hand and to a wall (6) of the lower base on the other hand in such a manner that it can absorb tensile forces and/or pressure forces, wherein the support element (4) is constructed in several pieces and the support element is divided longitudinally and comprises at least two segments (8) which complement each other in cross-section and which form a common support face at the end side.