Deutz TD 3.6 L4 Specifications
| Engine Model: Deutz TD 3.6 L4 |
| Engine Type: 4-cycle inline 4-cylinder common-rail direct injection liquid-cooled diesel |
| Total Displacement: 219.7 cu.in (3.6 L) |
| Rated Engine Power: 74-85 Hp (55-62 kW) at 2600 rpm |
| Aspiration Type: Turbocharged |
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The Deutz TD3.6L4 is a modern, turbocharged,
liquid-cooled four-cylinder industrial diesel engine engineered for
demanding off-highway, agricultural, construction, and material-handling
applications. As part of Deutz’s advanced mid-range engine platform, the
TD 3.6 L4 is designed to provide exceptional torque at low engine
speeds, high power density, fuel efficiency, and full compliance with
global emissions regulations including Tier 4 Final and Stage V (variant
dependent).
Its compact dimensions, low noise emissions,
and modular configuration make it attractive to OEMs requiring flexible
installation options. The engine employs high-pressure common-rail
injection, electronically controlled combustion, charge-air cooling, and
a rugged structural design capable of long service intervals and
reliable continuous operation.
The Deutz TD3.6L4 is a four-stroke, inline-four, liquid-cooled,
turbocharged diesel engine featuring an air-to-air charge-air cooler.
Engine displacement is approximately 3,600 cc (219.7 cubic inches). Bore
measures 98 mm (3.86 inches), while stroke is 120 mm (4.72 inches),
creating a long-stroke configuration designed for strong low-rpm torque
characteristics. Compression ratio varies between 17.0:1 and 18.0:1
depending on emissions tier.
Power output typically ranges from 55 kW (74 horsepower) at 2,200–2,800
rpm. Maximum torque is generally 330 Nm (240 lb-ft), typically available
at 1,400–1,800 rpm. Idle speed is commonly set between 750 and 850 rpm.
The engine uses high-pressure common-rail injection at 1,200–1,800 bar,
providing quiet operation, clean combustion, and low particulate output.
The cast-iron monobloc cylinder block is engineered for high structural
rigidity and low vibration. Integrated coolant jackets ensure even
thermal distribution around each cylinder. Deep reinforcing ribs
minimize deformation under heavy-duty load cycles. Oil passages run
through the block to feed the crankshaft bearings, camshaft, piston
cooling jets, and auxiliary components. Depending on variant, both wet
and dry replaceable liners may be used. The block is optimized for
durability, long overhaul intervals, and minimal maintenance demands.
The cylinder head is a crossflow cast-iron design with four valves per
cylinder—two intake and two exhaust valves. This configuration improves
breathing efficiency, reduces emissions, and enhances mid-range torque.
Valve actuation is achieved via rocker arms, pushrods, and a gear-driven
camshaft positioned in the block. Hardened valve seats and guides
withstand high thermal loads. The combustion chamber shape, injector
angle, and swirl characteristics are optimized for electronically
controlled, high-pressure fuel injection to ensure efficient combustion
under all load and speed conditions.
The TD 3.6 L4 uses a high-pressure common-rail fuel system.
Fuel path includes:
– electric lift pump;
– primary water-fuel separator;
– fine paper fuel filter;
– high-pressure pump generating 1,200–1,800 bar;
– electronically controlled injectors;
– return-line system for excess fuel and thermal management.
The ECU controls injection timing, quantity, and pressure, ensuring
optimal torque capability, low fuel consumption, and adherence to modern
emissions regulations. Standard diesel fuel with a cetane rating of at
least 45 is recommended.
The lubrication system is a full-pressure, wet-sump design powered by a
high-capacity gear-driven oil pump.
Lubrication points include:
– crankshaft main bearings;
– connecting-rod bearings;
– camshaft bearings;
– rocker-arm assemblies;
– turbocharger bearings;
– piston cooling jets.
Lubrication specifications:
– oil capacity: 9–11 liters (9.5–11.6 US quarts);
– operating pressure: 300–450 kPa (44–65 psi);
– idle pressure: 120–150 kPa (17–22 psi);
– recommended oil: SAE 15W-40, API CJ-4 or newer.
The engine uses a liquid-cooling system
consisting of:
– high-capacity centrifugal water pump;
– coolant passages in block and head;
– thermostat regulating flow between 82°C and 95°C (180–203°F);
– charge-air cooler for reduced intake temperatures;
– machine-specific radiator configuration;
– optional oil cooler for heavy-duty installations.
Coolant mixture is typically 50/50 ethylene glycol and water. Cooling
system pressure ranges from 90 to 120 kPa (13–17 psi). The system is
optimized for consistent temperature control even under extreme
operating environments.
| Intake and Exhaust Systems |
The induction system includes:
– heavy-duty dry-element air filter;
– optional multi-stage cyclone filtration for dusty environments;
– turbocharger delivering high intake density;
– air-to-air charge-air cooler lowering intake temperatures.
The exhaust system uses a high-temperature cast-iron manifold.
Depending on emissions tier and OEM
requirements, the system may incorporate:
– DOC (diesel oxidation catalyst);
– DPF (diesel particulate filter);
– SCR (selective catalytic reduction);
– exhaust gas temperature sensors;
– backpressure sensors.
| Electrical and Starting Systems |
Electrical system components include:
– 12V or 24V architecture;
– alternators rated 60–120 amps;
– heavy-duty starter motor (3.0–4.5 kW);
– ECU controlling fuel, turbo boost, emissions, and safety functions;
– sensors for coolant temperature, crankshaft position, camshaft
position, oil pressure, fuel pressure, boost pressure, intake
temperature, and exhaust temperature.
Depending on machine integration, the
engine can support:
– hydraulic pumps;
– vacuum pumps;
– air compressors;
– power steering pumps;
– generator sets;
– PTO systems;
– emissions-aftertreatment assemblies.
Approximate engine dimensions:
– length: 800 mm (31.5 inches);
– width: 700 mm (27.6 inches);
– height: 900 mm (35.4 inches).
Dry weight typically ranges between 330 and 380 kg (728–837 lbs)
depending on aftertreatment configuration, cooling package, and
accessory layout.
Routine maintenance intervals:
– oil and filter: every 500 hours;
– fuel filters: every 500 hours;
– air filter: inspect every 100 hours, replace as required;
– coolant: every 1,500–2,000 hours;
– valve lash: every 1,000–1,500 hours;
– injector inspection: every 2,000 hours;
– turbocharger inspection: every 2,000–3,000 hours;
– DPF cleaning (if equipped): per system monitoring;
– compression testing: every 4,000 hours.
Common torque values:
– cylinder-head bolts: 140–160 Nm (103–118 lb-ft);
– main-bearing caps: 150–180 Nm (111–133 lb-ft);
– connecting-rod bolts: 70–80 Nm (52–59 lb-ft);
– flywheel bolts: 120–150 Nm (89–111 lb-ft);
– crankshaft-pulley bolt: 180–200 Nm (133–148 lb-ft);
– oil-drain plug: 40–50 Nm (30–37 lb-ft);
– injector hold-down: 20–25 Nm (15–18 lb-ft);
– valve-cover bolts: 10–15 Nm (7–11 lb-ft).
The TD 3.6 L4 is commonly used in:
– compact wheel loaders;
– skid-steer loaders;
– agricultural tractors;
– telehandlers;
– forklifts;
– mobile compressors;
– generator sets;
– hydraulic powerpacks;
– small excavators;
– forestry and municipal vehicles.
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