1. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 1 18 Month Meeting Paris, Subproject A2, Status (month 13-18) Dr. Michael Höge, Siemens AG INGAS Subproject SPA2

2. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 2 A2.2.2 – Gen2 with doublestack and membrane sealed bellows: INGAS Subproject SPA2 Procurement, assembly and laboratory tests of Gen2 double stack drive mechanism Test results: => Injector shows stable behavior over runtime 8 injectors delivered to MBTech for commissioning of third engine => Injectors failed due to leakage of stroke amplifier Mechanical redesign of stroke amplifier: Laboratory tests: => Injector shows stable behavior over runtime 6 injectors delivered to AVL for testing => Injectors failed due to leakage of stroke amplifier

3. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 3 A2.2.2 – Gen2 with doublestack and metal sealed bellows INGAS Subproject SPA2 Big bellow Small bellow Hydraulic oil + Functionality proofed with demonstrator at laboratory + Dimensions suitable for engine + Thermal compensation of oil volume possible Demonstrator of metal sealed stroke amplifier

4. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 4 A2.2.2 – Gen2 with doublestack and metal sealed bellows INGAS Subproject SPA2 Stroke amplifier with bellows Timeline Concept:done Design:done Purchase:mid June Assembly:mid July Test @ Siemens and shipment to AVL:end July

5. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 5 A2.2.2 – Direct - Gen2 for commissioning first car INGAS Subproject SPA2 Timeline Concept:done Design:done Purchase:done Assembly:done Test @ Siemens:done Shipment to AVL:18.05.2010 Stroke amplifier replaced by spacer Material of spacer is aluminum to compensate thermal differences as much as possible Gen2 nozzle

6. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 6 A2.2.2 – Direct - Gen2 for commissioning first car INGAS Subproject SPA2 Example of measurement results at 23°C Example of measurement results at 80°C 86um 67um

7. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 7 INGAS Subproject SPA2 Dr. Michael Höge Siemens AG Corporate Research and Technologies Power & Sensor Systems / Actuators & Control Otto-Hahn-Ring 6 D-81730 Munich Thank you for your attention!