Piston Friction Measurement in Your Production Engine
The Piston Friction Measurement System from IR Telemetrics quantifies piston friction in an operating engine. This product is a combination of our Wireless Measurement System, analytical capabilities, and engineering services.
We determine piston friction through a combination of wireless measurements on the connecting rod and a sophisticated, proprietary algorithm that calculates the instantaneous friction at any point in the engine cycle. The loads on a connecting rod come from three forces.
- Combustion pressure
- Inertial loading
- Friction between the piston and cylinder wall
Steps Taken to Measure Friction
- Measure the loads in the rod using IR Telemetrics Wireless Measurement System
- Measure cylinder pressures acting on the piston with a stationary pressure transducer in the cylinder head
- Calculate inertial loading on the rod using IRT’s Algorithm
These measurements and calculations are done on a crank angle basis.
Friction = Load on the Rod-Load From Combustion-Inertial Load
Because we take measurements from a standard running engine, our system accurately represents production values.
Furthermore, our measurements allow us to output the friction at the pin journal end and the wrist pin end of the connecting rod. Having individual values for friction enables engineers to optimize their design performance with minimal investment.
The complexity of these measurements requires involvement of our lead engineers from the planning through execution. Please contact us to learn more about our friction measurement capabilities.
Applications
- Engine Bearing Wireless Measurement
- Connecting Rod Strain Measurement
- Crankshaft Torque Wireless Measurement
- Engine Piston Pressure Measurement
- Piston Telemetry
- Engine Piston Temperature Measurement
- Piston Wireless Measurement
- Shaft Torque
- Shaft Torque & Power Measurement
- Torque Converter Wireless Measurement
