Zetor Z 8641 - Essential Technical Parameters; Engine Specifications

29
ESSENTIAL TECHNICAL PARAMETERS
TECHNICAL SPECIFICATIONS OF ENGINES OF TRACTORS Z 11741.4C, Z 9641, Z 10641, Z 11441, Z 12441
Type of tractor
Z 11741.4C Z 9641 Z 10641 Z 11441 Z 12441
Type of engine
Z 1504 Z 1005 Z 1305 Z 1405 Z 1505
Engine compression ignition, 4-stroke cycle, direct fuel injection, turbo-charged
Engine design in-line, vertical, water-cooled
Number of cylinders 4
Stroke volume cm
3
4156
Bore x stroke mm 105 x 120
Nominal speed rpm 2200
Order of injection 1-3-4-2
Compression ratio 17
Max. override speed rpm 2460
Idle speed rpm 750 ± 25 800 ± 25 800 ± 25 800 ± 25 800 ± 25
Net power at nominal speed,
measured according to ECE R24
kW
90 66 74 81 90
Specific fuel consumption at the
given power
g.kW
-1
.h
-1
256 254 254 257 255
Max. torque (Mt) Nm 525 480 525
Excess of Mt % 35 38 37 35 35
Lubrication of engine Pressure system with pump Gerotor
Max. consumption of oil after
100 Mh of engine running-in
g.kW
-1
.h
-1
0.7
Pressure of oil at engine nomi-
nal speed and temperature of
oil 80 °C
MPa
0.2 ÷ 0.5
Minimum pressure of oil at 750
rpm and oil temperature 80 °C
MPa 0.05
Max. temperature of cooling fluid C° 106
Valve mechanism OHV
Oil cleaner Full-flow, disposable