Engine Model And Its Definitions; Rated Power - Bison BS-20KVA Operation Manual

3. Engine model and its definitions

Definitions of each character constituting the engine model
4 D
Note:
① W represents the engine series. BS-30KVA/BS-50KVA Series has two engine models: 4DW and
4DX
② 8 represents that the diameter of cylinder is 85. The cylinder diameters of Kangwei engines are as
follows:
Code of cylinder diameter
Cylinder diameter
③ 1 represents the naturally aspirated air inlet. Other types of air inlet are as follows
Code of air inlet
Type of air inlet

4. Rated power

The power of engine is defined in accordance with the ISO standard power specified in section 5.1.2 of
GB/T 2820.2-2009 (equal to ISO8528-2 ) "Reciprocating internal combustion engine driven alternating
current generating sets-Part2: Engines".
The standard situation is specified as:
Barometric pressure: 100kPa
Air temperature: 298K(25℃)
Relative humidity: 30%
Temperature of supercharged and inter-cooling media:298K(25℃)
Note: with air temperature of 298K(25℃), 30% relative humidity and 1kPa partial pressure of vapour,
the relative dry air pressure is 99kPa.
Test of engine power is performed in accordance with GB/T 6072.1-2008 standard (equal to
ISO3046-1).
The inlet air density may change according to the altitude and region where the engine is operating due
to the change of the air inlet amount. Accordingly, the output power of diesel engine is also changed.
W 8 1 23 D
8
85
1
Naturally aspirated
www.bezpeka-shop.com
diesel engine for generator
engine horsepower(power)
naturally aspirated
cylinder diameter
engine series
diesel engine
number of cylinder
9
90
2
Supercharged Supercharged and inter-cooling
22
2
102
3