the piston rod 19 to the pusher element 15 according to the section through the base plate 9 shown in fig2 the arm marked 20 here is passed through a tube 21 which is embedded into the thermal insulation material 22 of the body 1 and extends between a front wall 23 of the machine compartment 17 and an indentation 24 in the front frame 3 which receives the pusher element 15 the arm 20 is configured as a single piece with the piston rod 19 here and a tapering 25 between the two ensures the necessary pivoting movement between the arm 20 which passes in a linear manner through the tube 21 in the depth wise direction of the body 1 and the piston rod 19 the rear end of which is driven by the electric motor 18 to execute a pendulum movement in the widthwise direction of the body at the arm fig2 shows the piston rod 19 at a rear turning point of its movement beyond the rest position shown here it cannot pull the pusher element 15 back into the indentation 24 an active position in which the pusher element is moved to the maximum distance out of the indentation 24 is shown with a broken line before the pusher element can reach this position it pushes against the pressure plate 13 thereby pushing the door leaf 2 out of the illustrated position in which its magnetic seal 29 rests tightly against the front frame 3 into a partially open position in which magnetic seal 29 and front frame 3 are separated by an air gap fig3 shows a partial view of the refrigeration appliance housing illustrating a change to the embodiment in fig1 and 2 the tube 21 is not embedded into the thermal insulation.