1958-01-01

THE MWM … Balanced-Pressure Precombustion Chamber System for High-Speed Diesel Engines 580008

THE PROBLEM of using light and heavy fuels other than diesel in diesel engines is becoming increasingly important. With the hitherto known combustion systems it has not always been practicable to use the heavy fractions or the highly volatile fuels such as high-octane gasoline in high-speed diesels.
This article describes the MWM balanced-pressure precombustion system, which has been designed especially to tolerate a wide variety of fuels. The author examines the performance of three systems (direct injection, swirl chamber, and the MWM system) in relation to combustion and fuel influence.
According to the author, the advantages of the MWM balanced-pressure precombustion chamber are: (1) Relatively simple construction, adaptable to both aircooled and water-cooled engines; (2) controlled and thus smoother combustion with moderate firing pressure, enabling higher output even when bearing load remains the same; (3) quiet running by elimination of diesel knock; (4) favorable fuel consumption with excellent part-load performance; (5) cold-starting properties are virtually the same as in engines with direct injection; (6) nearly the same output and same fuel consumption independent of type and quality of fuel.

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