Yanmar Equipment
Marine Dual Fuel Engine
Medium-speed dual fuel engines running on natural gas or diesel, compliant with IMO NOx Tier 3 and SOx ECA requirements.
Description
Yanmar's dual fuel engines can run on both diesel and natural gas and comply with IMO NOx Tier 3 as well as SOx Emission Control Area rules. Real-time analysis of cylinder internal pressure with high-speed control avoids knocking even on natural gas with a low methane number, so the engine can operate on natural gas in any region with no output restrictions.
Key features
- Fuel can be switched from diesel to gas mode during navigation at 100% output, and back to diesel instantly and safely in emergencies
- Ignition by micro-pilot fuel compression
- Propulsion models 6EY26DF and 8EY26DF; auxiliary models 6EY22ALDF, 6EY26LDF and 8EY26LDF
- 6EY26DF: 1533 kW shaft output, 122.6 L displacement; 8EY26DF: 2044 kW, 163.5 L
- The 6EY22LDF is described as a world first for single-engine-single-shaft vessels
Applications
Propulsion and auxiliary power on commercial vessels operating on natural gas or diesel.
Specifications
| 6EY26DF / 8EY26DF bore x stroke | 260 x 385 mm |
|---|---|
| 6EY26DF displacement | 122.6 L |
| 8EY26DF displacement | 163.5 L |
| 6EY26DF shaft output | 1533 kW |
| 8EY26DF shaft output | 2044 kW |
| Propulsion engine speed | 750 min-1 |
| Mean effective pressure (propulsion) | 2.00 MPa |
| Ignition | Micro-pilot fuel compression |
| 6EY22ALDF bore x stroke | 220 x 320 mm |
| 6EY22ALDF displacement | 73.0 L |
| 6EY22ALDF output | 1100 kW (900 min-1) |
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