| 摘要 |
The aim of the invention is to provide a simple and compact design of a rotary transmission leadthrough ( 10 ) provided with a gas return line, in particular for filling a vehicle fuel tank comprising a rapid-action connection coupling ( 1 ), which is connected to the supply line ( 12 ) and to a return line ( 42 ). According to the invention, the supply line ( 12 ) and the return line ( 42 ) are arranged in a coaxial manner in relation to each other.
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