1960-01-01

basic design of Turbochargers for diesel engines 600007

ALTHOUGH turbocharging of low-speed diesel engines has been used world-wide for a long time, it is only during recent years that it has been applied to high-speed diesels. This is the result of considerable engineering efforts from both the turbocharger and the diesel side that were put into the turbocharger, which appears to be a so utterly simple device. This paper de­scribes some of these engineering efforts.
The basic design characteristics are developed with the point of view in mind that the turbo­charger has become much more than just an ad­ditional accessory. It is a vital component of the basic engine itself, contributing actively to the advancement of this prime mover. The basic de­sign characteristics center heavily around aero­dynamical and thermodynamical performance cri­teria which are so important in any advanced high-speed turbomachine.
In discussing the turbocharger, being a com­bination of two turbomachines which handle large volume flows of air and gas, emphasis is neces­sarily put on the compressor and turbine, whereas other components such as bearings and seals are only touched upon briefly.*

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