Lubrication in engines operating at high temperatures

Lubrication in high-temperature engines is a critical application for preventing wear of engine parts, reducing friction, and extending engine life. High temperatures put significant stress on the engine's metal parts and the oil; therefore, proper lubrication and appropriate oil selection are essential.

1. Why is it Important?

1. Excessive Heat
   • High temperatures reduce oil viscosity and increase the risk of oxidation.
   • Insufficient lubrication → bearing and gear wear, blackening and carbonization of metal surfaces.
2. Equipment Protection
   • High-temperature oils protect critical engine parts by preventing oil degradation.
3. Production Continuity and Safety
   • Engine failures → production shutdowns and increased costs.
   • Food-grade engine oils minimize hygiene risks in food production.

2. Properties of High-Temperature Engine Oils

3. Areas of Use

• Bearings and journals
• Gearboxes and reducers
• Engine block and piston mechanisms
• Moving parts exposed to high speed and temperature

4. Preventive Measures

1. Correct Oil Selection
   • High-temperature oils suitable for the engine's maximum operating temperature.
   • If food grade is required, NSF H1 or FDA compliant oils should be preferred.
2. Regular Lubrication and Monitoring
   • Oil level and viscosity should be checked.
   • Excessive heat should be monitored with temperature sensors.
3. Maintenance Intervals
   • High temperatures increase the rate of oil degradation → intervals should be checked more frequently.
4. Contamination Prevention
   • Water, dust, chemical or food residue should not come into contact with the oil.

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