摘要:
A method for producing a fuel container and a fuel container for motor vehicles. The method comprises the extrusion of web-type preforms, the shaping of the preforms to form shell-shaped intermediate products in a first step, and forming a container in the same moulding tool in a second step, at least one tank-filling and/or operational venting device being fastened to the inner wall of at least one intermediate product between the first and second steps by a material and/or form-fitting joint in one work cycle, the wall of the intermediate product being penetrated by a connection fitting during assembly, with a use of at least one conduit section of variable length as a part of a vent line.
摘要:
The invention relates to a reducing agent tank for holding a liquid reducing agent as a so-called SCR tank. The SCR tank comprises at least one device for deaerating the tank, which device is closed off by means of at least one pressure-compensating element which permits an exchange of gas but which closes off the tank in a liquid-tight manner. The reducing agent tank also comprises at least one deaeration line which communicates with the pressure-compensating element, with the deaeration line being guided at least to a point above the maximum permissible fording level of the tank when the tank is in the installation position. The deaeration line has at least one first downward-sloping line section which branches into a second rising line section for deaeration and a third falling line section for gravity-induced condensate drainage.
摘要:
The invention relates to a method for producing a fuel container and to a fuel container for motor vehicles. The method comprises the extrusion of web-type preforms, the shaping of the preforms in the first heat of the extrudate in a multi-part moulding tool to form shell-shaped intermediate products in a first step, and to form a one-piece, closed container in the same moulding tool in a second step, at least one tank-filling and/or operational venting device being fastened to the inner wall of at least one intermediate product between the first and second steps in such a manner that at least one preassembled part of the tank-filling and/or operational venting device with at least one connection fitting, at least one vent line and at least one functional component is connected to the inner wall by a material and/or form-fitting joint in one work cycle, the wall of the intermediate product being penetrated by the connection fitting during assembly, with the use of at least one conduit section of variable length as a part of the vent line.
摘要:
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.
摘要:
The invention concerns a mold tool for the production of extrusion blow molded products, comprising at least three mold portions (2a, 2b, 3) which define a mold cavity (4) and of which two are in the form of outer molds (2a, 2b) and one is in the form of a central mold (3). The outer molds (2a, 2b) and the central mold (3) are displaceable from and towards each other in the sense of an opening and closing movement of the tool. The central mold (3) is provided with component holders (11) which can be moved out of and into the tool plane defined by the central mold and are arranged in turn on a carrier (10) which is also displaceable with respect to the central mold (3).
摘要:
The invention relates to a fuel tank having at least one filler pipe (2) enclosing a refueling duct (13), at least one operational venting valve (11), at least one refueling venting valve (8) and at least one venting line (9), which is connected to a filler head (3) of the filler pipe (2). The filler head (3) comprises a valve, which when refueling closes a flow path from the venting line (9) into the refueling duct (13). One of outstanding features of the fuel tank is that the venting line (9) is embodied as a collective venting line for the refueling and operational venting and that in any switching position of the valve it communicates with a downstream fuel vapor filter (10) connected to the filler head (3).
摘要:
Functional components which are stationarily mounted in a fuel tank (1) and connected together by way of a connecting line (6) can be damaged by a change in size and shape of the fuel tank (1). The invention concerns a fuel tank (1), in particular of thermoplastic material, comprising at least two functional components such as for example venting valves (5), pumps, containers or the like, which are stationarily arranged in a fuel tank (1) and which are connected together by way of a connecting line (6). To avoid damage, in accordance with the invention one connecting line (6) includes at least a first portion (9) and a second portion (10), wherein the stiffness of the first portion (9) is less than the stiffness of the second portion (10).
摘要:
A discharge nozzle for the filling pipe of a motor vehicle fuel tank for the introduction of fuel into the tank includes a check flap which is held by spring loading in a closed position, being caused to bear pivotably against the mouth opening of the nozzle. The check flap is sealed in relation to the mouth opening of the nozzle by way of at least one sealing element with a peripherally extending sealing lip. The sealing lip extends radially outwardly in relation to the cross-section of the discharge mouth opening.