Arrangement comprising a reciprocating piston engine , which is designed for combustion-free operation, and a vacuum chamber , in which a reduced air pressure can be generated relative to the atmosphere (A) surrounding the reciprocating piston engine , wherein: - the reciprocating piston engine has at least one cylinder which is closed by a cylinder head and in which a piston can be moved, and the piston being coupled to a crankshaft of the reciprocating piston engine via a connecting rod on the side facing away from the cylinder head , the connecting rod and the crankshaft being integrated in a crankcase of the reciprocating piston engine ; - wherein a valve control is provided which controls at least one inlet valve and at least one outlet valve in operation such that the piston in the at least one cylinder is moved back and forth by alternately applying ambient pressure and negative pressure; characterized in that - the at least one cylinder on the cylinder head has the at least one inlet valve and the at least one outlet valve , the vacuum chamber being connectable via the outlet valve to a working chamber of the at least one cylinder in a fluid-conducting manner, to generate a negative pressure in the working chamber , and the working chamber being fluid-conductively connectable to the atmosphere (A) surrounding the reciprocating piston engine via the inlet valve to generate ambient pressure in the working chamber ; - and the reciprocating piston engine is designed in such a way that during operation there is always a substantially constant pressure, in particular an atmospheric pressure (A) surrounding the reciprocating piston engine , in a region of the piston facing away from the cylinder head . - the reciprocating piston engine has at least one cylinder which is closed by a cylinder head and in which a piston can be moved, and the piston being coupled to a crankshaft of the reciprocating piston engine via a connecting rod on the side facing away from the cylinder head , the connecting rod and the crankshaft being integrated in a crankcase of the reciprocating piston engine ; - wherein a valve control is provided which controls at least one inlet valve and at least one outlet valve in operation such that the piston in the at least one cylinder is moved back and forth by alternately applying ambient pressure and negative pressure; characterized in that - the at least one cylinder on the cylinder head has the at least one inlet valve and the at least one outlet valve , the vacuum chamber being connectable via the outlet valve to a working chamber of the at least one cylinder in a fluid-conducting manner, to generate a negative pressure in the working chamber , and the working chamber being fluid-conductively connectable to the atmosphere (A) surrounding the reciprocating piston engine via the inlet valve to generate ambient pressure in the working chamber ; - and the reciprocating piston engine is designed in such a way that during operation there is always a substantially constant pressure, in particular an atmospheric pressure (A) surrounding the reciprocating piston engine , in a region of the piston facing away from the cylinder head . <EOS>