The Hatz 1B20 is a 0.2 L (243 cc, 14.83 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small diesel engine with a horizontal shaft, manufactured by Motorenfabrik Hatz GmbH & Co. KG for general-purpose applications.
The Hatz 1B20 engine has a single-cylinder, light-alloy cylinder head, forged crankshaft, valve timing via rocker arm, pushrods, finger-follower, and camshaft. The Hatz 1B20 engine can be equipped with a recoil or electric starter (12V or 24V) and alternator (14V – 14A at 3,000 rpm; 7A at 1,500 rpm or 28V – 7A at 3,000 rpm or 4A at 1,500 rpm). The engine used pressurized lubrication with a fine filter in the main flow. The 1B20 is equipped with a 3.0 L (0.79 US. gal. 0.66 Imp. gal.) fuel tank.
This diesel engine produced from 2.2 PS (1.6 kW; 2.1 HP) at 1,500 rpm to 4.8 PS (3.5 kW; 4.7 HP) at 3,600 rpm of horsepower (DIN ISO 1585) and 10.5 N·m (1.1 kg·m, 7.7 ft·lb) at 2,500 rpm of peak torque.
|Engine type||4-stroke, single-cylinder|
|Displacement||243 cm3, (14.83 cu·in)|
From 2.2 PS (1.6 kW; 2.1 HP) at 1,500 rpm
to 4.8 PS (3.5 kW; 4.7 HP) at 3,600 rpm
|Max. torque||10.5 N·m (1.1 kg·m, 7.7 ft·lb) at 2,500 rpm|
|Cooling system||Forced air|
|Lubricating system||Pressurized lubrication|
|Fuel system||Direct injection|
|Fuel tank capacity||3.0 L (0.79 US. gal. 0.66 Imp. gal.)|
|Starting system||Recoil or electric starter (12 V or 24 V )|
|Dimensions (L x W X H)||304 x 361 x 401 mm (12 x 14.2 x 15.8 in)|
With recoil starter: 28.0 kg (61.7 lbs)
With electric starter: 32.8 kg (72.2 lbs)
Cylinder Block and Head
Cylinder bore and piston stroke are 69.0 mm (2.72 in) and 65.0 mm (2.56 in), respectively. Compression ratio rating is 22:1.
|Cylinder bore:||69.0 mm (2.72 in)|
|Piston stroke:||65.0 mm (2.56 in)|
|Ring end gap (Top):||0.250-0.450 mm (0.0098-0.0177 in)|
|Ring end gap (Second):||0.250-0.450 mm (0.0098-0.0177 in)|
|Ring end gap (Oil):||0.250-0.450 mm (0.0098-0.0177 in)|
|Crankshaft center distance:||32.5 mm (1.28 in)|
The API – CF / CH-4, ACEA – B3 / E4 oil with a viscosity of SAE 5W-30, 10W-30 is recommended for the 1B20, refilling oil capacity is 0.9 L (0.95 US. qt, 0.79 Imp. qt.). The valve clearance is 0.20 mm (0.008 in) for intake valves and 0.20 mm (0.008 in) for exhaust valves.
|Maximum speed:||3,600 rpm rpm|
|Intake valve clearance:||0.20 mm (0.008 in)|
|Exhaust valve clearance:||0.20 mm (0.008 in)|
|Lubrication system:||Pressurized lubrication|
|Oil type:||API: CF/CH-4, ACEA: B3/E4|
|Recommended oil:||SAE 5W-30, 10W-30|
|Oil capacity:||0.9 L (0.95 US. qt, 0.79 Imp. qt.)|
We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.
Be the first to comment