Fluid coupling

Fluid coupling (1) comprising two coupling halves (2.1/2.2) which are releasably connected on their coupling sides (5.1/5.2), each coupling half having a coupling housing (3.1/3.2), being equipped with a rotary valve (6.1/6.2), being aligned along a coupling axis (4), and being formed correspondingly similar to each other in such a manner that each rotary valve (6.1/6.2) has a rotary body (7.1/7.2) mounted on the coupling housing (3.1/3.2) so as to be rotatable about a valve axis (9.1/9.2), which is directed transversely to the coupling axis (4), and a fluid passage (8.1/8.2) which traverses this rotary body, said fluid passage closing and opening the rotary valve (6.1/6.2) depending on controllable rotational positions of the rotary body (7.1/7.2) about the valve axis (9.1/9.2), in that a drive device (10.1/10.2), which is associated in each case with one of the rotary bodies (7.1/7.2) for controlling its rotational position, is arranged on each coupling half (2.1/2.2), in that each coupling half (2.1/2.2) is equipped with a coupling means (11.1/11.2) which connects the coupling halves (2.1/2.2), it being possible for the connection to be established releasably for uncoupling and conversely for coupling by relative rotational movement of the coupling halves (2.1/2.2) about the coupling axis (4), and in that the coupling halves (2.1/2.2) have securing means (12.1/12.2) which block the relative rotational movement for securing the connection of the coupling halves (2.1/2.2) when at least one rotary valve (6.1/6.2) is open and which secure the closure of the two rotary valves (6.1/6.2) for disconnecting and correspondingly for connecting the coupling halves (2.1/2.2), characterised in that the drive device (10.1/10.2), which is arranged in each case on the one coupling half (2.1/2.2), has a drive shaft (16.1/16.2) which is associated in each case with a valve shaft (17.2/17.1) of the rotary body (7.2/7.1) of the rotary valve (6.2/6.1) of the other coupling half (2.2/2.1), whereby in each case, a locking connection (13.2/13.1) is configured which, when the coupling halves (2.1/2.2) are connected to each other, connects the respective drive shaft (16.1/16.2) on the one coupling half (2.1/2.2) to the respective valve shaft (17.1/17.2) on the other coupling half (2.2/2.1) in a non-rotatable and releasable manner such that the rotational position of this rotary body (7.2/7.1) is controllable thereby and the relative rotational movement of the coupling halves (2.1/2.2) about the coupling axis (4) is blocked but the relative rotational movement when the rotary valves (6.1/6.2) are closed is permitted.