Cat and MaK marine propulsion engines, generator sets, controls, parts and repower programs.
Caterpillar Marine Equipment Enhanced
Cat C7.1 Marine Generator Set
Inline 6-cylinder, 7.01 L turbocharged-aftercooled diesel marine generator set for workboats, 58-118 ekW at 1500/1800 rpm (50/60 Hz), IMO II, IMO III with SCR, U.S. EPA Tier 3, EU Stage V and China II.
Description
The Cat C7.1 Marine Generator Set (electronic control system) is a workboat genset built on an inline 6-cylinder, 4-stroke turbocharged-aftercooled diesel with common rail fuel injection and A5 ECM electronic governing. Multiple cooling and control panel options suit a range of installations.
Key features
- Gear-driven water pumps and automatic valve adjustment
- Heat exchanger, separate- or combined-circuit keel cooling, or radiator cooling
- Multiple control panel options; independent shutdown sensors and controller
- Engine-mounted filtration
- Paralleling droop kit for load sharing
- Optional SCR for IMO III compliance
Technical data
- Power range: 58-118 ekW
- Frequency / speed: 50/60 Hz, 1500/1800 rpm
- Displacement: 7.01 L (428 in³); bore 105 mm, stroke 135 mm
- Emissions: IMO II, IMO III (SCR required), U.S. EPA Tier 3, EU Stage V, China II
- Lube oil refill with filter: 21 L (5.6 gal); oil change interval 500 h
- Length 1,940 mm; height 1,263 mm; engine dry weight 1,522 kg (3,355 lb)
Equipment
Standard: water-cooled turbocharger and exhaust manifold, common rail fuel system with electric priming pump, integral oil cooler, 12 V or 24 V starter, corrosion-resistant sea water aftercooler, tube-and-bundle jacket water heat exchanger, fuel cooler.
Optional: SOLAS double-wall high-pressure fuel lines, additional engine and transmission sensor packages, engine-mounted bilge and auxiliary water pumps, jacket water heater, secondary alternator (24 V 100 A or 12 V 175 A), various 6 in water-cooled exhaust elbows.
Specifications
| Application | Workboat Workboat |
|---|---|
| Emissions | IMO II, IMO III (SCR required) U.S. EPA Tier 3, EU Stage V, China II IMO II, IMO III (SCR required) U.S. EPA Tier 3, EU Stage V, China II |
| Configuration | Inline 6, 4-Stroke Cycle Diesel Inline 6, 4-Stroke Cycle Diesel |
| Displacement | 428 in³ 7.01 l |
| Aspiration | Turbocharged / Aftercooled Turbocharged / Aftercooled |
| Governor | Electronic (A5 ECM) Electronic (A5 ECM) |
| Bore | 4.13 in 105 mm |
| Stroke | 5.31 in 135 mm |
| Refill Capacity | Lube Oil System w/oil filter change: 21 L / 5.6 gal Lube Oil System w/oil filter change: 21 L / 5.6 gal |
| Oil Change Interval | 500 hrs 500 hrs |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Cooling | Heat exchanger, Seperate Circuit Keel Cooled, Combined Circuit Keel Cooled, Radiator Cooled Heat exchanger, Seperate Circuit Keel Cooled, Combined Circuit Keel Cooled, Radiator Cooled |
| Frequency | 50 / 60 50 / 60 |
| Speed | 1500 rpm / 1800 rpm 1500 rpm / 1800 rpm |
| Length | 76.3 in /1,940 mm 76.3 in /1,940 mm |
| Height | 49.7 in / 1,263 mm 49.7 in / 1,263 mm |
| Engine Dry Weight | 3355 lb / 1,522 kg 3355 lb / 1,522 kg |
| Power Range | 58 R - 118 ekW |
| Emissions/Fuel Strategy | IMO II, IMO III, U.S. EPA Tier 3, China II |
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