Demands for more power from the turbocharged diesel, without increase in bulk or weight, has led to an increase in levels of mean effective pressure by the application of high-pressure turbocharging. An investigation was conducted to determine engine performance under high b.m.e.p. conditions and this paper presents results of the experimental part of the research programme.
Test work was carried out on a single-cylinder research engine equipped with an independent pressure-charging facility. Boost pressure ratios up to 6.2:1 were used with the geometric compression ratio reduced, in stages, to 8:1, to limit peak cylinder pressure. Power levels up to 35.4 bar b.m.e.p. were produced.
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References
1.
ClayB.JanotaM. S.Development of Ruston 254 mm bore RK turbocharged engines for high power output. Turbocharging and Turbochargers, IMechE conference, April 1982, paper C50/82 (Mechanical Engineering Publications, London).
2.
OsborneA. G.BhinderF. S.Investigations into the performance of highly turbocharged diesel engines. SAE paper 820329, SAE Publication SP.514, 1982.
3.
CloverM. F.OsborneA. G.HammondA. C. E.TowersJ. R.Increasing the power from 200 mm bore engines. CIMAC Conf., June 1984.
4.
HughesR. V.Recent work on a high output engine of 200 mm bore. CIMAC Conf., Tokyo, 1977, paper A19.
5.
McKenzieE. M. J.DexterS. G.The use of a single cylinder test engine for research and development of medium speed diesels. Ricardo Rep. No. DP.82/1667, 1982.
