Browse Publications Technical Papers 2004-01-1317
2004-03-08

Upgrade Design of the Yuchai F-6113 HD-DI Diesel Engine 2004-01-1317

The Yuchai F-6113 is an inline 6-cylinder heavy duty Diesel engine, mainly for truck application with a displacement of 8.4 liters and a rated power of 258 kW. It was derived from the F-6108 with a displacement of 7.3 liters. The boundary conditions for the new crankcase were set by the existing machining line. Substantially increasing the bore diameter while keeping the bore pitch constant, was achieved by replacing the conventional top stop liner with a mid stop liner with open deck. This liner concept is rather unique for heavy duty truck engines. The two 2-valve cylinder heads, covering 3 cylinders each, were replaced by a 4-valve one-piece cylinder head. The design comprises an electronically controlled Unit Pump Injection System (UPS) with the alternative to use an inline injection pump. The engine structure was laid out for the high specific output and the peak cylinder pressure requirements for the compliance with Euro III emission legislation.

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