Silent 40kw Natural Gas Engine Genset

• Customization: Available
• After-sales Service: Local Network
• Warranty: One Year
• Model NO.: CM40R4N
• Gas Source: Natural Gas
• Certification: CE
• Power: 30kw
• Standard: Standard
• Natural Gas Engine Model: Cmr4105nz
• Alternator Model: Henjo
• Rated Current: 72A
• Rated Volt: 400V
• Rated Frequency: 50/60Hz
• Power Factor: 0.8
• Rated Speed: 1500rpm/1800rpm
• No. of Cylinders: 4
• Cylinder Bore: 105mm
• Piston Stroke: 135mm
• Displacement: 4.67L
• Exhaust Temp Before Turbo: Less Than 650 Degrees
• Compression Ratio: 11.5:1
• Cooling Type: Water Cooling
• Start Type: Motor Start
• Transport Package: Wooden Box
• Trademark: CUSUNMACH
• Origin: China
• HS Code: 85022000
• Production Capacity: 3000 Sets Per Year

Product Description

1. Main structure of the natural gas generator set

Natural gas generator sets include natural gas-fueled reciprocating internal combustion engines, alternators, electrical parts, control devices, cooling systems, lubrication systems, exhaust systems, fuel systems, and auxiliary equipment. Except for the exhaust pipe and silencer of the exhaust system, they are mounted on a steel chassis. The generator set is a fixed permanent installed generator set. The steel underframe is mounted to the concrete foundation.

2. Main structure of the biogas engine

The gas fuel of this engine series can be natural gas, biogas, syngas, coal mine gas, and etc. In order to meet the requirements of different customers, this gas engine can be packaged into generating set or other power take-off.

3. Alternator

The brushless constant-voltage synchronous alternators are of the self-excited type with an electronic voltage regulator integrated in the excitation system. They are used as main or standby units in land based power installations and for ships' electrical systems and can be driven by internal combustion engines or gas, steam and water turbines and electric motors.

Structure: 
The alternator comprises the main machine exciter and excitation system. The main machine is of revolving magnetic field with cylindrical rotor and damper winding. The exciter is revolving armature machine. The exciter power is supplied to the rotor of the main machine via rotating rectifiers.


4. Genset control panel

Dedicated gas genset control panel is in the shape of cabinet. With controller, various indicating instruments, regulating buttons, protection indicators, emergency shut-down button installing inside to monitor the working status of the genset. Speed regulation is executed by the electronic governor and the fine regulation can also can be done by the buttons on the control panel. The voltage of the genset is automatic through the buttons on the control panel.




5. Parameter table
 

Genset Specification
Model	CM40R4N
Diesel engine model	CMR4105NZ
Alternator model	Henjo
Control panel	Smartgen
Rated power (kW)	40
Rated voltage (V)	400
Rated frequency (Hz)	50/60
Power factor	0.8
Connection mode	Three-phase four-wire, star connection
Protection class	IP23
Insulation class	H
Voltage steady-state adjusting rate (%)	±2.5
Voltage transient-state adjusting rate (%)	-15~+20
Voltage stable time (S)	1.5
Voltage fluctuation rate (%)	0.5
Voltage regulation range (%)	95-105
Frequency steady-state adjusting rate (%)	5
Frequency transient-state adjusting rate (%)	±10
Frequency stable time (S)	7
Frequency fluctuation rate (%)	0.5
Dimension L*B*H (mm)	1800x800x1300
Net weight (Kg)	850
Natural Gas Engine Specification
Model	CMR4105NZ
Rated power (kW)	40
Speed (rpm)	1500
Idle speed (rpm)	700
Type	Four-stroke, turbocharged, inlet air cooling, spark ignition,external-mixing electronic control
No. and layout of cylinders	4 in line
Cylinder bore (mm)	105
Piston stroke (mm)	135
Displacement (L)	4.67
Compression ratio	11.5:1
Heat consumption (kj/kWh)	≤9500
Oil consumption (g/kWh)	≤1.0
Exhaust temp before turbine (ºC)	≤650
Water temperature (ºC)	≤85
Oil temperature (ºC)	≤90
Lubricating	Press and spray lubrication
Cooling method	Pressurized water cooling
Start mode	Air motor or electric motor