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DCEC Engine Model Name Definition

Diesel engine is produced by the American CMS Engine Company. Company, founded in 1919, is the world’s largest manufacturer of specialized diesel engines. Diesel Engine Product Series Up to now, diesel engine has produced 10 series including A, B, C, L10, N, V, K, etc. Among them, A, B, C, L10, N are promising series. CMS Diesel Engine Numbering Rules consists of the following 6 parts.

  • C-Construction
  • G-Generator set
  • M-Marine
  • GM-Auxiliary engine for marine
  • P-Pump engine

Diesel Engine Series

The letters B, C, N, V, K, etc. represent the engine series. Among them, the number of cylinders must be added to the B and C series, such as 4B and 6C.

 Air Intake Method

T-turbocharged; TA-turbocharged and intercooled; TT-two-pole turbocharged; TTA-two-pole-turbocharged and intercooled. Those without letters are naturally aspirated.

Total Working Capacity (Total Displacement)

The working longitudinal volume of the diesel engine is expressed in numbers, and the unit is L.

 Application Symbols

Use letters to indicate the purpose of the diesel engine. A-Agriculture; B-Bus; C-Engineering; F-Fire; G-generator set; G0-continuous generator set; GS-standby generator set; L-locomotive; N,M-ship; P-power station.

 Rated Power

Expressed in numbers, there are the following situations

  1. Automobiles, buses, agriculture, machinery and power stations can be expressed in horsepower or omitted.
  2. For fire pumps, generators, locomotives and marine diesel engines, the rated power can be expressed with rated output via horsepower, kilowatts or numbers. (1, 2 or 3).

 Special Symbols

Use letters to indicate the characteristics of special cars.

Example:
NTA-855-C360; N refers to the engine series; T refers to turbocharged; A refers to intercooler; 855 refers to the total displacement of 855in3, (14L); C refers to construction machinery; 360 has a maximum rated power of 360HP (269KW).

  • GA: Common power 200kW
  • G1A: Common power 220kW

  • G2A: Common power 280kW

  • G7: Common power 300kW

DCEC is a joint venture. DCEC mainly manufactures CMS designed medium and heavy-duty engines, which include B, C, D, L, Z series, covering displacement of 3.9L, 4.5L, 5.9L, 6.7L, 8.3L, 8.9L, 9.5L and 13L and power ranged from 80 to 680 horsepower, meeting China’s NSV, NSVI, and CS IV emission standards, which are widely used in light, medium and heavy-duty trucks, urban bus and shuttle, construction machinery, marine and generator sets.

N: Indicates the engine serial number. (DCEC also: 4B.BC.6L. M11.K19.K38 series, etc.)

T: Indicates that the engine has a turbocharger. (a T means a turbocharger, if it is TT, it means a double turbocharger)

A: Indicates that the engine has an intercooler, and the turbocharged air enters the combustion chamber after being cooled by water. (Note: There are GA/G1A/G2A above, this does not mean the intercooler)

AA: It means that the engine has air-to-air cooling. The difference from the upper intercooler is that the supercharged air from the supercharger is connected to the water tank at the front of the engine, and the air is used to cool the intake air.

855: Indicates the displacement of the engine. Imperial units, converted to metric units, is 14 liters. (Example: K19 means the displacement is 19 liters)

G: Indicates the purpose of the engine, and G is the generator set. (C means construction machinery, M means marine, etc.)

A/1A/2A/7: Indicates the maximum power output of the engine. (There are also previous representation methods, such as: G1, G2, G4, etc.)

{

EQ stands for Dongfeng Motor Corporation, B stands for DCEC B-series engine, 125 stands for power (125 horsepower), – the latter 20 stands for the exhaust gas produced by this engine when it works to meet the European No. 2 emission standard. Dongfeng currently has no 6VT series of engines. The engines currently produced are 4BT, 6BT, 6CT and 6105 series, which are widely used in 4BT, 6BT and 6CT series. 4 and 6 represent the number of cylinders, B represents the DCEC B series with a bore of 102 mm, C represents the DCEC C series with a bore of 114 mm, and T represents an engine with a supercharger.

The Name of the Vehicle Mechanical Pump Engine

1.1 B series engine
Abbreviation of Dongfeng Company: Expressed in capital letters, EQ means Dongfeng Company.
Engine series: expressed in capital letters, B means B series.
Engine power rating (metric horsepower): expressed in Arabic numerals, 180 means 180 horsepower.
Engine emission level: expressed in Arabic numerals, 1 means reaching country 1, 2 means reaching country 2.
Emission certification serial number: expressed in Arabic numerals, 0 means the first time.

1.2 C and L series engines
Engine series: expressed in capital letters, L for L series, c for C series.
Engine power rating (metric horsepower): In Arabic numerals, 340 means 340 horsepower.
Engine emission level: expressed in Arabic numerals, 1 means reaching country 1, 2 means reaching country.
Engine use: expressed in Arabic numerals, 0 for truck applications and 1 for bus applications.

Naming of Non-road Mechanical Engines

Number of engine cylinders: expressed in Arabic numerals, 6 means 6 cylinders, 4 means 4 cylinders.
Engine series: expressed in capital letters, C means C series, B means B series, L means L series
Engine displacement: expressed in Arabic numerals, 8.3 means 8.3 liters, 5.9 means 5.9 liters, 3.9 means 3.9 liters, and 8.9 means 8.9 liters.
Engine use: expressed in capital letters.
Engine power rating (metric horsepower): In Arabic numerals, 215 means 215 horsepower.

The Specific Definition of the Naming form is as Follows

Abbreviation of electronic control system: expressed in capital letters
Abbreviations and meanings of electronic control systems
IS (Interactive System) Interactive Electronic Control System
Engine series: expressed in capital letters, D means D series, L means L series, Z means Z series
Engine rated power (metric horsepower): expressed in Arabic numerals, 180 means 180 horsepower.
Types of emission regulations: expressed in lowercase English letters
E (Europe) European Regulations
Engine emission level: expressed in Arabic numerals, 3 means reaching national 3, 4 means reaching national
Engine use: expressed in Arabic numerals, 0 for truck application, 1 for bus application

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