KamAZ 820 is a family of 4-stroke V-shaped 8-cylinder liquid-cooled gas engines, turbocharged with ONV, with non-contact spark ignition, with an electronic distributed gas injection control system using electromagnetic dispensers manufactured by PJSC KamAZ.
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 an 8-cylinder gas engine with a capacity of 240 hp. ecological standard Euro-4, with individual aluminum heads, turbocharging, ONV, electronic control and exhaust gas aftertreatment system. The resource is 800 thousand km of run as part of mainline vehicles.
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 | ||
