... by optimizing its fuel system , air intake and exhaust system , cooling system and transmitting system . 3. "Kaisheng" engine with ... , radiator , oil cooler , electrical stop part , electrical governor , and so on . 4. 42CrMo highpressure forged steel crankshaft , white journals ... alternator , TFW serial 3phrase AC synchronous alternator , TZH and STC phase AC synchronous alternator . 8. High-efficiency ...