1. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II Neutron Radioscopy of a car combustion engine Johannes Brunner, Burkhard Schillinger Technische Universität München, Physik E21 Universität Heidelberg, Institute Laue Langevin, Neutrograph Paul Scherrer Institut, Neutra

2. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II Object of investigation : BMW combustion engine running at 1000 rpm, driven by a 2kW electric motor cycle time: 120 ms

3. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II NR image: oil dome at the piston bottom 2 mm oil jet for the piston cooling valves (one in front of the other) oil traces of the piston during up movement

4. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II detector: ICCD camera PI- Max, Princton Instruments, (Paul Scherrer Institut) measured at Neutrograph, Institute Laue Langevin time resolution: 1ms (150 on chip acc) spatial resolution: 1.8 mm relative noise: 2% field of view: 21.5 x 21 cm 2 (852 x 833 pixel) neutron flux: 3·10 9 n/cm 2 s

5. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II an inverse neutron movie follows: oil movements at the upper position of the piston

6. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II

7. a diffence neutron movie follows: oil movements at the lower position of the piston

8. Technische Universität München Forschungs-Neutronenquelle Garching, ZWE FRM-II