Compressed Air as a Quality and Pollution Free Fuel Substitute in Reciprocating Engines - an Effective Solution to Improve the Engine Performance Sanyo High School in Hiroshima

Format:

Conference/Event

Author/Creator:

Sugita, Sugita, author.

Conference Name:

SAE International Powertrains, Fuels and Lubricants Meeting (2011-08-30 : Kyoto, Japan)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

An existing 4 stroke-cycle gasoline engine has been partially modified without dynamically changing its mechanism for the purpose to utilize compressed air as an alternative energy source. The principle is to mechanically control the compressed air flow through the intake and exhaust valves every revolution of the crankshaft by modifying the camshaft cam's lobes, which changes the engine operation from 4 strokes to 2 strokes cycle mode. In the previous investigation the principle was verified with a current 50 cc motorcycle modified engine and the pressure behavior inside the cylinder of the compressed air engine was evaluated. It turned out that the back pressure, which is defined as the positive pressure left in the expansion chamber while the piston is moving back from the bottom dead center to the top dead center, has high influence on the performance of the compressed air reciprocating engine. In this investigation the same pressure and performance measurement were conducted for the modified engine assembled the cylinder with side holes drilled to confirm an effect on the back pressure relief, thus verifying one of the effective solutions to improve the performance of the compressed air reciprocating engine

Notes:

Vendor supplied data

Publisher Number:

2011-01-2026

Access Restriction:

Restricted for use by site license