Patent ID: 11897325
Assignee: KAUTEX TEXTRON GMBH & CO. KG
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B  F

Claim 0:
1. A fuel tank filler tube for a fuel tank, comprising:
a tube portion formed of plastic; and
a tubular adapter which is connected to the tube portion and which couples the filler tube to the fuel tank,
wherein a lateral surface of the adapter is connected to a lateral surface of the tube portion by an integrally bonded connection,
wherein the adapter and the tube portion are arranged so as to overlap in a region of the integrally bonded connection,
wherein the adapter is produced from at least two material components,
wherein the first material component of the at least two material components is provided to structurally stiffen the adapter and the second material component of the at least two material components is provided to form the integrally bonded connection to the tube portion,
wherein the lateral surface of the adapter is, in the region of the integrally bonded connection, formed from a plastic which is weldable to the plastic of the tube portion,
wherein the adapter in the region of the integrally bonded connection is two-layered comprising a first layer and a second layer,
wherein the lateral surface of the adapter is provided by the first layer and formed of the second material component,
wherein the first layer covers a main body being the second layer,
wherein the second layer is formed of the first material component, and
wherein the adapter comprises at least two circular cylindrical portions of different diameter, which are each connected to one another via a conical transition, wherein a first circular cylindrical portion of the at least two circular cylindrical portions and the conical transition comprises the lateral surface connected to the tube portion such that the first circular cylindrical portion and the conical transition of the adapter are both in direct contact with the tube portion.