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High-Quality Valve Etr Cnt Pressure – Cummins QSNT855 Engine Assembly – Raptors

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High-Quality Valve Etr Cnt Pressure – Cummins QSNT855 Engine Assembly – Raptors Detail:

Porduct application

NTA855 has many uses. It can be equipped with generator sets. For example, it can be equipped with generator sets for ships. It can also be equipped with vehicles. If equipped with vehicles, it is mainly construction machinery, bulldozers, excavators, cranes, etc.

Advanced design and reliable performance:
Cylinder block: made of high-strength alloy cast iron, with good rigidity, low vibration and low noise.
Cylinder head: Four-valve design per cylinder, optimized air/fuel mixture ratio, effectively improving combustion and emissions; one head per cylinder, easy maintenance.
Camshaft: The single camshaft design can accurately control the valve and injection timing, and the optimized cam profile can reduce the impact force and improve the reliability and durability.
Crankshaft: Integral crankshaft made of high-strength forged steel. The induction hardening process of fillet and journal can ensure higher fatigue strength of the crankshaft.
Piston: Using the latest aluminum alloy casting technology, the design of ω-shaped head and barrel-shaped skirt can compensate for thermal expansion and contraction to ensure a good fit.

Now we take NTA855-G1 as an example, analyze the specific parameters of this engine

NTA855-G1 Cummins engine parameters

Engine performance parameters

STANDBY ENGINE

PRIME ENGINE

60HZ

50HZ

60HZ

50HZ

Engine speed r/min

1800

1500

1800

1500

Output Power kW(BHP)

317

265

287

240

Mean effective pressure kPa(psi)

1510

1510

1358

1379

Piston average speed m/s(ft/min)

9.1

7.6

9.1

7.6

Maximum parasitic power Kw(HP)

44

33

44

33

Cooling water flow L/s(US gpm)

7.8

6.4

7.8

6.4

Engine parameters with dry exhaust pipe:
Engine net power kW(BHP)

302

256

272

231

Intake air flow L/s(cfm)

463

345

425

321

Exhaust gas temperature ℃(℉)

543

541

460

532

Exhaust air flow L/s(cfm)

1253

949

1029

878

Radiant heat energy kWm(BTU/min)

50

41

45

37

Cooling water takes away heat kWm(BTU/min)

202

169

183

153

Exhaust takes away heat kWm(BTU/min)

281

233

259

207

Fan air flow L/s(cfm)

9808

8161

9808

8161

Engine parameters with wet exhaust pipe
Engine net power kW(BHP)

302

256

272

231

Intake air flow L/s(cfm)

463

326

425

302

Exhaust gas temperature ℃(℉)

496

552

474

510

Exhaust air flow L/s(cfm)

1053

852

1029

753

Radiant heat energy kWm(BTU/min)

41

34

38

31

Cooling water takes away heat kWm(BTU/min)

247

206

223

187

Exhaust takes away heat kWm(BTU/min)

255

207

220

185

Fan air flow L/s(cfm)

9808

8161

9808

8161

Product Pictures


Product detail pictures:

High-Quality Valve Etr Cnt Pressure –  Cummins QSNT855 Engine Assembly  – Raptors detail pictures

High-Quality Valve Etr Cnt Pressure –  Cummins QSNT855 Engine Assembly  – Raptors detail pictures

High-Quality Valve Etr Cnt Pressure –  Cummins QSNT855 Engine Assembly  – Raptors detail pictures

High-Quality Valve Etr Cnt Pressure –  Cummins QSNT855 Engine Assembly  – Raptors detail pictures


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