The significant advantages of Cummins diesel generator is the high thermal efficiency, as this advantages, Cummins diesel generator has increasingly wide range of applications. With the increasing enhanced level of Cummins diesel generator, the weight power of Cummins diesel generator were also significantly reduced. In 50 years, a number of structural properties of a more comprehensive series of new, universal diesel generator set developed, after this, Cummins diesel generator enters into a specialized mass production. Especially in using of exhaust gas turbocharger technology, the Cummins diesel generator has become a modern power machinery in the most important part. In order to save energy, many countries are focused on improving the combustion process of burning low quality fuel oil and non-oil products. In addition, the reduced friction loss, extensive use of exhaust gas turbocharger and supercharger degrees, further lightweight, high-speed, low fuel consumption, low noise and low pollution, are important development direction of the Cummins diesel generator.