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INGAS Subproject SPA2

INGAS Subproject SPA2. 18 Month Meeting Paris, Subproject A2, Status (month 13-18) K. Roessler, Daimler AG. INGAS Subproject SPA2. WPA2.3 WP-Title: Hardware Procurement Main objectives of WPA2.3: Completion of all multi-cylinder engines.

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INGAS Subproject SPA2

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  1. INGAS Subproject SPA2 18 Month Meeting Paris, Subproject A2, Status (month 13-18) K. Roessler, Daimler AG

  2. INGAS Subproject SPA2 • 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.

  3. INGAS Subproject SPA2 • 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.

  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, pcyl = 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 outlet above camshaft oil return blow-by crankcase outlet gas oil

  5. INGAS Subproject SPA2 • Next Steps (month19-24) • Redesign of slide rails with different material. Procurement of parts and retrofit of engines. • Repair of engine no. 1.

  6. INGAS Subproject SPA2 • 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.

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