Abstract:
The invention concerns a fuel tank for a motor vehicle, comprising at least one venting device which is connected to a fuel vapor filter, wherein the venting device includes at least one collecting container (4) for receiving liquid fuel (21). The fuel tank is distinguished in that disposed within the collecting container (4) is a delivery pump (8) for emptying it into the delivery volume (23) of the fuel tank (1).
Abstract:
The invention relates to a plastic fuel tank (1) for motor vehicles having at least one tank wall (2) surrounding at least one fuel volume, wherein the tank wall (2) is provided at least in a certain area or certain areas with means for increasing flexural rigidity in the form of two-dimensionally extended reinforcing layers (3) connected materially and/or positively thereto (FIG. 1).
Abstract:
The invention relates to a device for forming moulded bodies from a mouldable mass comprising a matrix grid (19) in which at least one receiving chamber (21) is accommodated, and at least one tool (17, 18) with which the mouldable mass can be pressed into the receiving chamber (21). Said claimed device is characterised in that the tool (17, 18) can be displaced along a guide path (3A, 3B) that comprises a moulding section (A), in which a constant pressure is exerted upon portions of the mouldable mass on the strip by the tools (17, 18), said mass being disposed in the receiving chamber (21). The invention further relates to a method for forming moulded bodies, in which a mouldable mass is formed and is guided to at least one receiving chamber of a matrix grid (1). At least one tool (17, 18) then presses one portion of the mouldable mass into the receiving chamber (21), in which the tool (17, 18) is displaced along a guide path (3) that comprises a moulding section (A), wherein a constant pressure is exerted upon the portions of the mouldable mass on the strip by the tools (17, 18), said portions being disposed in the receiving chamber (21).
Abstract:
The invention relates to a motor vehicle fuel tank (1) of thermoplastics having at least one filler neck (4) not moulded on in one piece, the latter being connected in a fluid-tight manner to the fuel tank (4), wherein the filler neck (5) is inserted into an opening (5) in the fuel tank (1) and is sealed by sealing means (11) at its outer circumference relative to the fuel tank (1) in the opening (5). The filler neck (4) is clamped axially against the tank wall (2), with the seal acting radially.
Abstract:
The invention relates to a thermoplastic fuel tank (1) for motor vehicles, with at least on stiffening element within the fuel tank (1), wherein the stiffening element extends between two opposite tank walls (4) in such a manner that it counteracts deformation caused by internal pressure of the fuel tank (1). According to the invention, two ends of the stiffening element arranged within the fuel tank (1) engage behind the tank wall (4) from the outside.
Abstract:
Known tank flanges have a main filter which has a filter housing with an inlet and an outlet, and a first connecting duct for connecting the main filter to a feed unit. The filter housing is integrated in the tank flange, and filter fabric is inserted into the filter housing and the filter housing is closed off by a filter cover. The inlet of the filter housing is connected to the pressure side of a feed unit and the outlet leads to an internal combustion engine. A disadvantage is that, in order to exchange the filter fabric, the large-area filter cover must be opened, as a result of which a large amount of fuel vapor is dissipated to the atmosphere. In the case of the tank flange according to the invention, the exchangeability of the main filter is simplified by virtue of the main filter being embodied as a filter cartridge. It is provided according to the invention that the inlet of the main filter extends into the first connecting duct of the tank flange and therein forms a sealed connection.
Abstract:
The invention relates to a device for forming mouldable bodies (57) from a mouldable mass by means of a matrix grid (19), in which at least one cavity (21) is formed by lateral limiting elements (20), and at least one tool (17, 18) which compresses the mouldable mass into the cavity (21). The inventive device is characterised by a compression partition (38) that can be displaced on the matrix grid (19) for portioning the mouldable mass. Said compression partition (38) comprises lateral limiting elements (39) that correspond to the lateral limiting elements (20) of the matrix grid (19). The invention also relates to a method for forming mouldable bodies (57) consisting of forming a mouldable mass and guiding it to a matrix grid (19) such that it rests on the front face (45) of the lateral limiting elements (20) of the matrix grid (19). A compression partition (38) with lateral limiting elements (39), that correspond to the lateral limiting elements (20) of the matrix grid (19), is displaced towards the matrix grid (19) to reduce the part (14A) of the mouldable mass on the lateral limiting elements (20) of the matrix grid (19) in the direction of a cavity (21) formed by the matrix grid (19) between the lateral limiting elements (20), thus portioning the mouldable mass. At least one tool (17, 18) compresses the portions of the mouldable mass in the cavity (21).
Abstract:
The invention relates to a motor vehicle fuel tank (1) of thermoplastics having at least one filler neck (4) not moulded on in one piece, the latter being connected in a fluid-tight manner to the fuel tank (4), wherein the filler neck (5) is inserted into an opening (5) in the fuel tank (1) and is sealed by sealing means (11) at its outer circumference relative to the fuel tank (1) in the opening (5). The filler neck (4) is clamped axially against the tank wall (2), with the seal acting radially.
Abstract:
The invention relates to a filler neck (1) for a fuel tank of a motor vehicle which has at least one tubular section (3) provided in the area of the filler inlet to receive the outlet pipe (4) of a fuel delivery nozzle. The filler neck (1) according to the invention has the distinguishing feature of at least one insert forming a constriction as a flame barrier, which encloses the outlet pipe (4), forming at least one gas passage gap (7), the gap dimension being selected so that any flashback is prevented.
Abstract:
The invention concerns a fuel tank (1) for a motor vehicle with means for ventilation and purging and with means for delivery of fuel to the combustion engine (10) of a motor vehicle, comprising at least one fuel delivery pump (6) arranged in the fuel tank (1) inside a surge tank (5) provided therein, at least one suction jet pump (8) fed from the feed (9) of the fuel delivery pump (6) for filling the surge tank or for draining at least one further volume arranged inside the fuel tank or formed by the fuel tank into the surge tank (5) or into the volume of the fuel tank in which the surge tank (5) is arranged. The fuel tank according to the invention is characterized in that at least one suction jet pump (8) is connected, in that it takes fuel alternately, depending on the tank fill level, from several volumes (3, 4, 12) arranged or formed inside the fuel tank or it can be operated intermittently depending on the tank fill level.