Auxiliary Engines & Generator Sets
Marine Auxiliary Engines
Engines driving pumps, compressors, hydraulic packs, winches and fire pumps rather than an alternator, arranged for marine installation.
Features
- Rated on the driven load's power and duty, with a margin for the worst case rather than the normal case.
- Driven equipment may need a clutch, a gearbox or a belt drive, and the arrangement is specified with the engine.
- Fire pump duty carries its own requirements for independence, starting and running time, and the survey will examine them.
- Cooling and exhaust are arranged for the space the unit sits in, which is often a deck house or a tight compartment rather than the main engine room.
- Instrumentation and shutdown protection matter more on an unattended auxiliary than on an engine under watch.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Rated power | 20 - 300 | kW | matched to the driven load's absorbed power |
| Driven equipment | fire pump / hydraulic pack | decides the drive arrangement and the rating | |
| Drive arrangement | direct with clutch / belt | affects alignment and the mounting design | |
| Duty | intermittent, on demand | separates a standby rating from a continuous one | |
| Protection and shutdowns | low oil pressure, high temperature | essential on an unattended unit |