Cummins natural gas generator
(1) It adopt the dragon -type cylinder which be founded by high-strength cast iron, and made by the multi process machining shape, it has sufficient mechanical strength and stiffness which improve the stability of the genset, it is easy to maintenance and lengthen the life time and save much running cost.
(2) We adopt the electronic mixer which R&D by ourselves, can use the methane component from 30%-70%, also the air/Fuel can match the best ratio, the special design can make the gas burn completely and decrease the gas Consumption and can improve the engine efficiency, decrease the NOX emission, and can reach the international emission standard.
(3) It adopts the electronic ignition system ALTRONIC which R&D by us, which included the special hall sensor, ignition module coil, high volte wire. The ignition system adopts high energy ignition system it can control the exactly lighting time and start very rapidly, so it reduce the knocking ratio of the genset and improve the stability.
(4) Installed with special high precision Governor, our gas genset has the performance of high precision, strong load rising ability and short time recovering.
(5) Each cylinder adopts four valve design, enlarges the area of air intake and exhaust to the most extant, increases the air input, torque and the engine power, so the genset can have the strong ability for impact load.
(6) The crankshaft is casted by the high strength alloy iron, it improves the overall strength and rigidity, makes thecrankshaft has a long service life.
generator set (Data) | ||||
Genset Model | VGH25-G | VGH50-G | VGH75-G | VGH120-G |
Genset Rated Power (kW/KVA) | 25/31 | 50/63 | 75/94 | 120/150 |
Engine Model | HG4B | HG6B | HG6L | HGN14 |
Engine Rated Power (KW) | 33 | 56 | 85 | 135 |
Type | Inline,four stroke,electronic | Inline,four stroke,electronic | ||
control spark plug ignition, | control spark plug ignition, | |||
water-cooling,dry cylinder | water-cooling,wet cylinder jacket, | |||
jacket,premix proper ratio of | premix proper ratio of air and | |||
air and gas before combustion | gas before combustion | |||
Cooling mode | Radiator fan cooling for closed-type cooling mode, | |||
or heat exchanger water cooling for cogeneration unit | ||||
Cylinders&Arrangement | 4L | 6L | 6L | 6L |
Bore x Stroke(mm) | 102*120 | 102*120 | 114*135 | 140*152 |
Displacement (L) | 3.92 | 5.88 | 8.3 | 14 |
Compression ratio | 11.5:1 | 11.5:1 | 11.5:1 | 11.5:1 |
Rated speed (r/min) | 1500 | |||
Fuel | Natural gas or biogas | |||
Gas consumption ratio (g/kWh ) | ≤ 230 g/kWh ( 0.30 m3/kW·h)(97% natural gas) | |||
Ignition order | 1-3-4-2 | 1-5-3-6-2-4 | 1-5-3-6-2-4 | 1-5-3-6-2-4 |
Idling speed(r/min) | 700 | |||
Oil recommended | SAE 15W/40CD CNG special lube oil | |||
Oil consumption | ≤ 1.0g/kW.h | |||
The highest exhaust(C) | ≤600 |
Natural gas generator