Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets

Product catalog summary

Engine Specifications
The document details the specifications for Caterpillar's I-4, 4-Stroke-Cycle-Diesel engines. Key features include a 4.4 L displacement, 105 mm bore, and 127 mm stroke. The engines use direct injection combustion, are either naturally aspirated or turbocharged, and have an electronic governor. The dry weight of the gen set package ranges from 755 kg to 1029 kg depending on the model.

Cooling and Lube Systems
The cooling system has a capacity of 16.5 L and includes heat exchanger-cooled or keel-cooled packages. The lube oil system holds 8.5 L with a 500-hour oil change interval.

Air Inlet and Exhaust Systems
The air inlet system features an air cleaner with a service indicator and a glowplug cold start system. The exhaust system includes a dry insulated turbocharger and water-cooled exhaust manifolds.

Fuel and Generator Systems
The fuel system comprises primary and secondary fuel filters, a fuel priming pump, and an energize-to-run shutoff solenoid. The generator is a 12 lead reconnectable, 3-phase model with brushless excitation, providing 300% short circuit current for up to 10 seconds, and features a solid-state voltage regulator and Class H insulation.

Performance and Dimensions
The marine generator sets are rated at 50 Hz, 1500 rpm, with power outputs from 38 ekW to 69 ekW. Fuel consumption is specified for each model. Dimensions vary slightly, with lengths from 1422 mm to 1529 mm.

Standard and Optional Equipment
Standard equipment includes a control system with a governor droop kit, space heater kits, and double wall fuel lines. Optional attachments include jacket water heater options and remote expansion tank kits.

Rating Conditions
Ratings are based on SAE J1228/ISO8665 standards and applicable under various international standards. Fuel rates are based on specific fuel oil properties, with additional ratings available for specific customer requirements.

Specifications
The document outlines specifications for Caterpillar Marine Generator Sets, specifically the C4.4 model with power ratings of 58 ekW, 76 ekW, and 99 ekW at 60 Hz and 1800 rpm. They operate at a power factor of 1.0, with Class H insulation and a temperature rise of 150°K at 40°C ambient.

Fuel System
The fuel system includes double wall fuel lines and a mounted alarm reservoir. Fuel consumption varies with power output: 16.9 L/hour for the 58 ekW model, 22.0 L/hour for the 76 ekW model, and 27.7 L/hour for the 99 ekW model.

Starting and Cooling Systems
Options include jacket water heaters and additional 12 or 24-volt starters. The cooling system offers a remote expansion tank kit and options for heat exchanger-cooled or keel-cooled packages.

Performance and Ratings
Performance ratings are based on SAE J1228/ISO8665 standards, with a total harmonic content of less than 4% and voltage regulation of ±0.5%.

Dimensions and Weight
Dimensions vary slightly with power output. The 58 ekW model measures 1529 mm in length, 1055 mm in height, and 700 mm in width, with a dry weight of approximately 1029 kg.

Optional Attachments and General Features
Optional attachments include space heater kits and a governor droop kit for paralleling with customer-supplied switchgear. Generators feature a negative isolated ground electric system and a steel base frame with anti-vibration mounts.

General Information
Materials and specifications are subject to change without notice. Actual engine performance may vary based on application and operating conditions. Caterpillar trademarks and logos are protected and require permission for use.

Catalog excerpts

Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets-1

C4.4 MARINE SET GENERATOR 38 ekW (47 kVA) 50 Hz, 1500 rpm CATERPILLAR® ENGINE SPECIFICATIONS I-4, 4-Stroke-Cycle-Diesel Shown with Accessory Equipment Displacement . . . . . . . . . . . . . . . . . . . . . . . 4.4 L (269 cu. in.) Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 mm (4.13 in.) Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm (4.99 in.) Combustion. . . . . . . . . . . . . . . . . . . . . . . . . . . Direct Injection Aspiration . . . . . . . . . . . . . . . . . . . . . . . . . Naturally Aspirated Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Gen Set Package Dry Weight (approx) . . . . . . . . . . . . . . . . . . . . . . . . . . 755 kg (1664 lb) Total System Capacity Cooling System . . . . . . . . . . . . . . . 16.5 L (4.36 U.S. gal) Lube Oil System. . . . . . . . . . . . . . . . 8.5 L (2.25 U.S. gal) Oil Change Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 hr Rotation (from flywheel end) . . . . . . . . . . Counterclockwise STANDARD EQUIPMENT Air Inlet System Air cleaner, single element canister type with service indicator and rain cap; glowplug cold start system Cooling System Heat exchanger-cooled packages with Cupro-nickel tube bundle (sized for 50°C amb. air and 32°C sea water) or keel-cooled packages (sized for 50°C amb. air); deaeration expansion tank, plate-type engine, gear-driven centrifugal jacket water pump, gear-driven self priming sea water pump, Caterpillar Extended Life Coolant (heat exchanger-cooled packages) Exhaust System Dry insulated turbocharger, water-cooled exhaust manifolds Fuel System Primary fuel filter/water separator with NPT and BSP connectors (ship loose), secondary fuel filter (LH), fuel priming pump — electric, energize-to-run shutoff solenoid Generator 12 lead reconnectable, 3 phase all models, brushless, separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds, 2/3 pitch, broad voltage band, IP23 water protection, solid state voltage regulator with integral voltage adjustment potentiometer, Class H insulation, connection poles Governing System Electronic governor Lube System Lubricating oil, oil filter (LH), dipstick (LH), fumes disposal (closed system) Mounting System Steel base frame with drip pan, anti-vibration mounts Starting/Charging System Negative isolated ground electric system General Single-side service (LH), keel-cooled gensets do not include the keel cooler(s) OPTIONAL ATTACHMENTS Control System Governor droop kit (selecting this kit enables paralleling with appropriate customer-supplied switchgear Generators & Generator Attachments Space heater kit, installed — 120V AC, 240V AC Fuel System Double wall fuel lines and mounted alarm reservoir Cooling System Remote expansion tank kit (box supplied loose) General PGS test report @ 1.0 power factor, extra literature, storage preservation, export packing: single engine shipment to U.S., 20-foot container engine shipments, 40-foot container engine shipments Starting System Jacket water heater options, additional 12 or 24 volt starter LEHM5092-01 Page 1 of 2

Open the catalog to page 1

Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets-2

Right Side Footprint (Bottom View) * Height dimension does not include remote-mounted air filter or electronic control panel. PERFORMANCE DATA Fuel Consumption @ Full Power CATERPILLAR GENERATOR_ Temperature Rise RATING CONDITIONS 25°C (77°F), and 30% relative humidity. These ratings also apply at ISO3046/1, DIN6271/3, and Fuel rates are based on fuel oil of 35° API 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C Additional ratings may be available for specific customer requirements. Consult your Caterpillar representative for additional information. Performance data is calculated in accordance...

Open the catalog to page 2

Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets-3

C4.4 MARINE SET GENERATOR 51 ekW (64 kVA) 50 Hz, 1500 rpm CATERPILLAR® ENGINE SPECIFICATIONS I-4, 4-Stroke-Cycle-Diesel Shown with Accessory Equipment Displacement . . . . . . . . . . . . . . . . . . . . . . . 4.4 L (269 cu. in.) Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 mm (4.13 in.) Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm (4.99 in.) Combustion. . . . . . . . . . . . . . . . . . . . . . . . . . . Direct Injection Aspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turbocharged Governor . . . . . . . . . . . . . . . . ....

Open the catalog to page 3

Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets-4

Right Side Footprint (Bottom View) DIMENSIONS_ PERFORMANCE DATA Fuel Consumption * Height dimension does not include remote-mounted air filter or electronic control panel. CATERPILLAR GENERATOR_ Temperature Rise RATING CONDITIONS 25°C (77°F), and 30% relative humidity. These ratings also apply at ISO3046/1, DIN6271/3, and Fuel rates are based on fuel oil of 35° API 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C Additional ratings may be available for specific customer requirements. Consult your Caterpillar representative for additional information. Performance data is calculated in accordance...

Open the catalog to page 4

Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets-5

C4.4 MARINE SET GENERATOR 69 ekW (86 kVA) 50 Hz, 1500 rpm CATERPILLAR® ENGINE SPECIFICATIONS I-4, 4-Stroke-Cycle-Diesel Shown with Accessory Equipment Displacement . . . . . . . . . . . . . . . . . . . . . . . 4.4 L (269 cu. in.) Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 mm (4.13 in.) Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm (4.99 in.) Combustion. . . . . . . . . . . . . . . . . . . . . . . . . . . Direct Injection Aspiration . . . . . . . . . . . . . . . . . . Turbocharged-Aftercooled Governor . . . . . . . . . . . . . . . . . . . . . ....

Open the catalog to page 5

Cat C4-4 Heat Exchanger - Keel Cooled Spec Sheets-6

Right Side Front Footprint (Bottom View) DIMENSIONS PERFORMANCE DATA Fuel Consumption * Height dimension does not include remote-mounted air filter or electronic control panel. CATERPILLAR GENERATOR_ Temperature Rise RATING CONDITIONS 25°C (77°F), and 30% relative humidity. These ratings also apply at ISO3046/1, DIN6271/3, and Fuel rates are based on fuel oil of 35° API 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C Additional ratings may be available for specific customer requirements. Consult your Caterpillar representative for additional information. Performance data is calculated in accordance...

Open the catalog to page 6