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GW4 - 22

Product catalog summary

Gamma Series GW4 Variable Speed Engine Overview
The GW4 Variable Speed Engine is a naturally aspirated, heavy-duty diesel engine designed for variable speed operations. It offers a power range of 40-48 kW (53.6-67.0 bhp) and operates at speeds between 1500-2200 r/min. Key features include 250-hour service intervals, continuous operation in ambient temperatures up to 50°C (122°F), and cold start capability down to -10°C (14°F).

Basic Engine Characteristics

Four-cylinder, diesel-fueled, direct injection, liquid-cooled, naturally aspirated engine.

Design Features and Equipment

Standard oil and fuel filters, 12V electric start (optional 24V), anti-clockwise rotation (viewed from flywheel end).
SAE 10” and 11.5” flywheel, SAE3 flywheel housing, radiator with fan guard, cast-iron crankcase.
Self-vent fuel system, inline fuel injection pump, flywheel with ring gear, air cleaner, water temperature sender, oil pressure sender, spin-on lubricating-oil filter, fuel filter/agglomerator, inlet and exhaust manifolds, operator’s handbook.

Rating Definitions to ISO 3046

Variable speed: Fuel stop power, continuous power (IFN) - Maximum power delivered continuously at stated crankshaft speed with fuel limited to prevent exceeding fuel stop power.
Power outputs at 1500 r/min: 40 kW (53.6 bhp), 1800 r/min: 42 kW (56.3 bhp), 2200 r/min: 50 kW (67.0 bhp).

Technical Data

Fuel consumption at 1500 r/min: 10.8 litre/hr, 1800 r/min: 11.3 litre/hr, 2200 r/min: 13.2 litre/hr.
Fuel stop torque at 1500 r/min: 253 Nm (188 lbf ft), 1800 r/min: 222 Nm (164 lbf ft), 2200 r/min: 208 Nm (153 lbf ft).
Engine specifications: 4 cylinders, firing order 1-3-4-2, direct fuel injection, natural aspiration, anti-clockwise rotation (flywheel view).
Cylinder bore: 100 mm (3.94 in), stroke: 127 mm (5 in), total cylinder capacity: 3.99 litre (243.3 in³), compression ratio: 16.5:1.
Rated maximum full-load speed: 2200 r/min, mean piston speed: 9.3 m/sec (30.5 f/sec), oil consumption: max 0.2% of fuel consumption.

Approximate Dimensions and Weight

Length: 1260 mm (49.6 in), height: 940 mm (37 in), width: 706 mm (27.8 in), dry weight: 540 kg (1190 lb).

Contact Information

Lister Petter Power Systems Limited, Unit 14 Estuary Court, Broadmeadow Industrial Estate, Teignmouth, TQ14 9FA, UK. Phone: +44 (0) 1285 702211.
Production Facility: Units 13-15 Quadrant Distribution Centre, Hardwicke, Gloucester, GL2 2RN, UK. Email: [email protected], Website: www.listerpetter.com.

Catalog excerpts

GW4 VARIABLE SPEED ENGINE GW4 - 22 Power range: 40-48 kW; 53.6-67.0 bhp Variable speed: 1500-2200 r/min NATURALLY ASPIRATED HEAVY DUTY VARIABLE SPEED DIESEL ENGINE ( N SPECIAL ATTRIBUTES • 250-hour service intervals • continuous operation in ambient temperatures up to 50°C (122°F) • cold start down to -10°C (14°F) BASIC ENGINE CHARACTERISTICS • four cylinders • diesel fuelled • direct injection • liquid cooled • naturally aspirated DESIGN FEATURES AND EQUIPMENT • standard oil and fuel filters • 12V electric start (optional 24 V) • anti clockwise rotation, looking on flywheel end • SAE 10” and 11.5” flywheel • SAE3 flywheel housing • radiator with fan guard • cast-iron crankcase • self-vent fuel system • inline fuel injection pump • flywheel with ring gear • air cleaner • water temperature sender • oil pressure sender • spin-on lubricating-oil filter • fuel filter / agglomerator • inlet and exhaust manifolds • operators’ handbook 1. Variable speed: fuel stop power, continuous power (IFN) The maximum power in kW which an engine is capable of delivering continuously at stated crankshaft speed, with the fuel limited so that the fuel stop power cannot be exceeded. The output ratings apply only to fully run - in engines without radiator, fan or other power absorbing accessories.

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GAMMA SERIES: GW4 VARIABLE SPEED ENGINE TECHNICAL DATA SHEET Head Office Lister Petter Power Systems Limited Unit 14 Estuary Court, Broadmeadow Industrial Estate Teignmouth, TQ14 9FA T: +44 (0) 1285 702211 Production Facility Lister Petter Power Systems Limited Units 13-15 Quadrant Distribution Centre Hardwicke, Gloucester, GL2 2RN [email protected] www.listerpetter.com DISTRIBUTOR ADDRESS Lister Petter Power Systems have made efforts to ensure that the information in this data sheet is accurate but reserve the right to amend specifications and information without notice and without obligation...

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GW4 - 22

GW4 - 22

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