KAMAZ 820 is a family of 4-stroke V-shaped 8-cylinder liquid-cooled gas engines, turbocharged with charge air cooling, with spark contactless ignition, with an electronic control system for distributed gas injection using electromagnetic dispensers manufactured by KAMAZ PJSC.
Gas engines KAMAZ 820.60 and KAMAZ 820.61 have no structural differences: 820.60 is installed on KamAZ vehicles, and 820.61 on the chassis of NefAZ buses.
KAMAZ 820.70 is a gas 8-cylinder engine with a capacity of 240 hp, Euro-4 environmental standard, with individual aluminum heads, turbocharging, charge air cooling, electronic control and exhaust gas aftertreatment system. The resource is 800 thousand km of run as part of the main cars.
Specifications KamAZ 820.60 and KamAZ 820.61
| Engine model | 820.60-260 | 820.61-260 |
|---|---|---|
| Configuration | V-8 | |
| Cylinder bore, mm | 120 | |
| Piston stroke, mm | 130 | |
| Displacement, liters | 11,762 | |
| Compression ratio | 12,0±0,4 | |
| Maximum net power according to the UNECE Regulations № 85-00, rated power net according to GOST 14846-81, hp | 260 | |
| Rated engine speed, rpm | 2200±50 | |
| Max. torque according to the UNECE Regulations № 85-00, maximum torque output net by GOST 14846-81, kgf×m | 110 | 95 |
| Engine speed at max. torque, rpm | 1400±100 | |
| Firing order | 1-5-4-2-6-3-7-8 | |
| Minimum specific gas consumption (according to external speed characteristic), gram/(1hp×hour) | 154 | |
| Oil consumption for waste at rated power mode, gram/(1hp×hour), not more than | 0,33 | |
| Weight (dry), kg | 885 | |
| Dimensions: length*weight*height, mm | 1314*939*1152 | |
Specifications KamAZ 820.70
| Engine model | 820.72-240 | 820.73-300 | 820.74-300 |
|---|---|---|---|
| Configuration | V-8 | ||
| Cylinder bore, mm | 120 | ||
| Piston stroke, mm | 130 | ||
| Displacement, liters | 11,762 | ||
| Compression ratio | 12,0±0,4 | ||
| Maximum net power according to the UNECE Regulations № 85-00, rated power net according to GOST 14846-81, hp | 240 | 300 | 300 |
| Rated engine speed, rpm | 1900±50 | ||
| Max. torque according to the UNECE Regulations № 85-00, maximum torque output net by GOST 14846-81, kgf×m | 110 | 140 | 125 |
| Engine speed at max. torque, rpm | 1300±100 | ||
| Firing order | 1-5-4-2-6-3-7-8 | ||
| Minimum specific gas consumption (according to external speed characteristic), gram/(1hp×hour) | 154 | ||
| Oil consumption for waste at rated power mode, gram/(1hp×hour), not more than | 0,17 | ||
| Weight (dry), kg | 885 | ||
| Dimensions: length*width*height, mm | 1314*939*1152 | ||
