Basics

In a similar manner to Aero-Derivative Gas Turbines , an Automotive Engine repurposed for other uses
Typically:
- In a Genset / RICE Based Power Plant
- In other forms of Motor Vehicles such as in Small Vehicles/Racing Vehicles, Aircraft or Marine Vessels
  - The latter two may require more substantial modifications such as Redudnancy (In Spark Plugs and other hardware) or in Environmental Compliance/Saltwater/Corrosion-Proofing respectively

OSE Relevance

In terms of Appropriate Materials, choosing an engine that can be easily found in Junkyards/The Local Used Fleet allows for easy acquisition of hard to develop parts such as Engine Blocks and Cam Shafts / Poppet Valves etc
Also given many Small Engines such as those found on ICE driven Small Generators, Pressure Washers, and the like are often simpler/more primitive in design, one may able to get far more advanced technology (In Long Term Reliability, In Emissions Controls , in “Tunability” / Efficiency / Flex Fuel or Multi-Fuel Capability etc

Pressure Lubrication
- Thus less wear and tear (albeit citation needed), ease of Oil Filtration + Oil Cooling etc
Electronic Fuel Injection
- Fuel Efficiency, Emissions, Potential for Novel Fuel Use, Tunability, and POTENTIALLY more reliability over Carbureted systems
Emissions Control Systems
- Mainly the Three Way Catalyst in Spark Ignition Engines + Associated Sensors etc
- Being able to have a ULEV / Certified Clean Idle Genset would be a MAJOR improvement over most small engines
Water Cooling
- Better adapted to stationary use (no reliance on Ram Air Cooling )
- Also well adapted to utilization of Waste Heat (Re Central Burner Unit / Hydronic Heating / CHP etc)
Highly Variable Output
- Granted WITHOUT a gearbox this may be different versus “drivability”, and things like Engine Deposits and Redlining would also need to be considered, but compared to most Carbureted Small Engines which tend to prefer WOT or nothing, an improvement nonetheless
Parts Availability
- May vary by country (~~and Car Dependency etc~~ ) but the share of people with Automobiles, versus the share of people with Generators, especially of larger design, probably dictates the cost of Parts/Local Knowledgebase of repairs etc