tailieunhanh - engineering tribology 2 YGwidon W.

The design principles favoured in Europe, because of economic and other restraints such as smaller and twistier roads, leant toward smaller cars and corresponding to the design principles that concentrated on increasing the combustion efficiency of smaller engines. This produced more economical engines with earlier four-cylinder designs rated at 40 horsepower (30 kW) and six-cylinder designs rated as low as 80 horsepower (60 kW), compared with the large volume V-8 American engines with power ratings in the range from 250 to 350 hp, some even over 400hp. (190 to 260 kW). | ENGINEERING TRIBOLOGY ENGINEERING TRIBOLOGY Gwidon W. Stachowiak Department of Mechanical and Materials Engineering University of Western Australia Australia Andrew W. Batchelor Department of Mechanical and Materials Engineering University of Western Australia Australia UTTERWQRTH E 1 N E M A N

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