Bently Nevada 165855-16-CN Cylinder Pressure Sensor

Applications

The Bently Nevada 165855-16-CN Cylinder Pressure Sensor is designed for monitoring cylinder pressure in industrial reciprocating machinery and engine applications. With a pressure range of 0 to 345 bar, it is suitable for demanding measurement environments where accurate pressure information is important for equipment performance analysis, combustion monitoring, and condition assessment.

Cylinder pressure provides valuable information about the operating condition of reciprocating engines and compressors. Changes in pressure behavior can indicate combustion abnormalities, valve problems, piston-ring issues, cylinder imbalance, or other mechanical conditions. By providing a reliable pressure measurement, the sensor can support both routine operating analysis and predictive maintenance programs.

Typical applications include:

• Reciprocating engine monitoring
• Gas engine cylinder pressure measurement
• Diesel and dual-fuel engine monitoring
• Reciprocating compressor applications
• Combustion performance analysis
• Cylinder-to-cylinder performance comparison
• Engine condition monitoring
• Predictive maintenance systems
• Industrial power-generation equipment

The sensor is particularly useful where pressure measurements need to be integrated into a broader machinery monitoring strategy. Engineers can compare cylinder pressure behavior across multiple cylinders to identify deviations and investigate potential mechanical or combustion-related problems.

Advantages

Wide Pressure Measurement Range

The sensor supports a pressure range from 0 to 345 bar, providing substantial measurement capacity for high-pressure cylinder monitoring applications.

Designed for Reciprocating Machinery

Cylinder pressure measurement is particularly valuable for reciprocating engines and compressors because it provides direct information about conditions inside individual cylinders.

Supports Condition Monitoring

Pressure trends can be analyzed alongside vibration, speed, temperature, and other machinery parameters to provide a more complete view of equipment condition.

Early Detection of Abnormal Operation

Changes in cylinder pressure can provide an early indication of combustion imbalance, valve leakage, compression problems, or other developing equipment issues.

Compact Industrial Sensor

With a weight of only 0.4 kg, the sensor can be incorporated into measurement arrangements where minimizing equipment mass and installation complexity is beneficial.

Useful for Maintenance and Diagnostic Programs

The sensor can support periodic diagnostic measurements as well as continuous monitoring strategies, depending on the overall system architecture and measurement requirements.

Technical FAQs

1. What is the Bently Nevada 165855-16-CN used for?
It is a cylinder pressure sensor designed to measure pressure in compatible reciprocating machinery applications, particularly engines and compressors.

2. What is the pressure range of the 165855-16-CN?
The specified pressure range is 0 to 345 bar.

3. Why is cylinder pressure an important measurement?
Cylinder pressure provides information about the operating and combustion condition of individual cylinders. Comparing pressure behavior can help identify abnormal combustion, compression problems, and mechanical faults.

4. What equipment can benefit from cylinder pressure monitoring?
Reciprocating engines, gas engines, diesel engines, dual-fuel engines, reciprocating compressors, and other compatible machinery can benefit from cylinder pressure measurements.

5. Can cylinder pressure measurements be used for predictive maintenance?
Yes. Pressure trends can be monitored over time to identify changes in cylinder performance and support early investigation of developing mechanical or combustion problems.

6. What problems can abnormal cylinder pressure indicate?
Depending on the machine and measurement pattern, abnormal pressure can be associated with issues such as valve leakage, combustion irregularities, compression loss, injector problems, piston-ring wear, or cylinder imbalance.

7. Why should cylinder pressure be compared between cylinders?
Cylinder-to-cylinder comparison helps identify deviations from normal operating behavior. A cylinder showing a significantly different pressure profile may require additional inspection or diagnostic testing.

8. What should be checked before installing a replacement sensor?
Technicians should verify the complete part number, pressure range, mechanical connection, installation requirements, measurement system compatibility, and operating environment before installation.

9. Can incorrect installation affect pressure measurement accuracy?
Yes. Incorrect mounting, unsuitable connections, contamination, excessive mechanical stress, or improper installation conditions can affect measurement reliability.

10. Can this sensor be used together with other machinery-monitoring measurements?
Yes. Cylinder pressure can be evaluated together with vibration, speed, temperature, and other operating parameters to provide a more comprehensive assessment of reciprocating machinery condition.