The Hatz 1B50V is a 517 cc, (31.5 cu-in) single-cylinder air-cooled 4-stroke internal combustion diesel engine with a vertical shaft, manufactured by Motorenfabrik Hatz GmbH & Co. KG for general-purpose applications.
This engine has a single-cylinder, overhead valves, direct injection fuel system and electric starter motor 12 or 24 Volts.
A 93.0 mm (3.66 in) cylinder bore and 76.0 mm (2.99 in) piston stroke give the 1B50V engine a total of 462 cc, (28.19 cu-in) of displacement. The compression ratio is 20.5:1. It produced from 55.7 PS (4.2 kW; 5.6 HP) at 1,500 rpm to 11.6 PS (8.5 kW; 11.4 HP) at 3,600 rpm of maximum output. The torque is 27.4 N·m (2.8 kg·m, 20.2 ft·lb) at 2,500 rpm.
|Type||4-stroke, single cylinder|
|Displacement||517 cm 3 (31.5 cu-in)|
|Max. horsepower||11.6 PS (8.5 kW; 11.4 HP) at 3,600 rpm|
|Max. torque (crank PTO)||27.4 N·m (2.8 kg·m, 20.2 ft·lb) at 2,500 rpm|
|Lubricating system||Forced spray|
|Starting system||Electric starter motor|
|Fuel used||Diesel fuel|
|Fuel tank capacity||5.0 L (1.32 US. gal. 1.1 Imp. gal.)|
|PTO shaft rotation||Counterclockwise (from PTO shaft side)|
Dimensions and Weight
|Length, mm (in)||477 (18.8)|
|Width, mm (in)||394 (15.5)|
|Height, mm (in)||392 (15.4)|
|Dry weight, kg (lb)||58.5 (128.9)|
|Maximum speed||3,600 ± 150 rpm|
|Intake valve||0.10 mm (0.004 in)|
|Exhaust valve||0.10 mm (0.004 in)|
With diesel oxidation catalyst (DOC): ACEA E6|
Without diesel oxidation catalyst (DOC): CF/CH-4, ACEA: B3/E4
|Recommended oil||SAE 5W-30, 10W-30|
|Oil capacity||1.5 L (1.59 US. qt, 1.32 Imp. qt.)|