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) K. Roessler, Daimler AG INGAS Subproject SPA2

2. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 2 WPA2.3 WP-Title: Hardware Procurement Main objectives of WPA2.3: –Completion of all multi-cylinder engines. –Achievement of a uniform configuration of all engines. –Layout of crankcase ventilation system and procurement. Status Summary of WPA2.3: –  All three engines completed and tested. –Conversion of engines 2 and 3 from CR = 13 to CR = 12. –Layout crankcase ventilation system completed and tested. INGAS Subproject SPA2

3. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 3 Task A2.3.3 Multi cylinder engines generation 2 - Status: Third multi-cylinder engine (gen. 2, engine number: YK0003173) was completed. Initial test on engine test bench. Conversion from CR = 13 to CR = 12 (piston InGAS-V1). Handed over to Continental in March 2010. Layout of crankcase ventilation system completed and tested. Final test including piping on engine test bench or vehicle still outstanding. Investigations on engine test bench to improve cam phaser behavior carried out. A solution for satisfactory stationary operation was found. Transient behavior is still insufficient. INGAS Subproject SPA2

4. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 4 INGAS Subproject SPA2 Connecting of Ventilation Device 2 blow-by outlets at the engine (above camshaft and on the side of the crankcase ) 2 blow-by connections at the ventilation device 1 oil return from ventilation device into oil pan Specification Measurement on AVL engine test bench Blow-by: max. 70 dm³/min, Separated oil: approx. 115 g/h, (at n = 2000 rpm, 300 Nm, p cyl = 120 bar) Gas outlet without oil Status - function tested on engine test bench: OK - mounting/piping for vehicle in preparation - final test including piping on engine test bench or vehicle still outstanding gas outlet crankcase outlet oil return outlet above camshaft blow-by gas oil

5. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 5 Next Steps (month19-24) –Redesign of slide rails with different material. Procurement of parts and retrofit of engines. –Repair of engine no. 1. INGAS Subproject SPA2

6. INGAS 18 months Meeting, Paris, 20-21 May 2010 INGAS INtegrated GAS Powertrain 6 Problems / Changes compared to plan –Engine damage due to wear of slide rail. Engine No. 2 was sent to AVL as replacement. Redesign of slide rails with different material is in progress. –Adjustment of cam phaser too slow. Measurement of oil pressure in preparation. INGAS Subproject SPA2