Brief Introduction to YC4W Series Engine

   YC 4W series diesel engine is the new type HSDI fuel engine in which Yuchai has the proprietary intellectual property rights with a displacement of 1.2L～1.8L and power coverage of 55 –82 horse power to be applicable for bus market. This series diesel engine integrated modern engine advanced technology, like 4-valve dual overhead camshaft structure, electronic high pressure common rail injection system, turbo-charging & inter-cooling, water-cooled EGR, timing chain transmission agent, hydraulic valve clearance adjuster, spherical bearing runner axle rocker and with the advantage of low consumption 、lower emission、highly active.

Engine features：

一、Advanced Technology

1．  All aluminum structure, light weight；

2．  4-valve, DCHC;

3．  Direct injection、Turbo-charging & inter-cooling；

4．  Electronic high pressure common rail injection system；

5．  EGR Water cooled EGR;

6．  Advanced air managerial system；

7．  Variable area turbocharger(VNT)(optional)；

8． Alterable intake whirlpool(in option)

二、Big power output

Power 55KW-82KW，power performance up to advanced international standards

三、Low Emission

US Delphi electronic high pressure common rail technology, up to Euro-III

四、Low consumption

Lowest oil consumption ≤215g/kW.h, specific fuel consumption lower than 0.1%

五、Lower noise

Reach GB14097-1999 standard, Noise on testing platform≤94dB（A）

六、High reliability

Reach German FEV mechanical reliability, engine life B10 above 250000 kilometer.

七、Better applicability

Low displacement, High output per liter, light in weight, better applicability.