For experiments using cylinder pressure indication on the CT 100.20 test engine, the normal spark plug is exchanged for a modified spark plug. This modified spark plug is fitted with a micro pressure transducer. The pressure transducer is directly exposed to the combustion chamber pressure when the spark plug is inserted. The spark plug itself retains its full functionality. The core component of the pressure transducer is a heat resistant piezo-electric quartz crystal, which outputs a charge signal proportional to the pressure. The pressure transducer is connected to the measuring amplifier in the CT 100.13 electronic indication system.
Learning Objectives / Experiments
- Cylinder pressure measurements on internal combustion engines
Features
* Micro pressure transducer with modified spark plug as carrier1 * Pressure measurement in the combustion chamber of
an engine
Specification
[1] Modified spark plug carrying the actual pressure transducer [2] Champion brand spark plug [3] Quartz pressure transducer [4] Only to be used with CT 100.13 and CT 100.20
Technical Data
Pressure transducer
- measuring range: 0...100bar
- max. operating temperature: 200°C
- max. allowable pressure: 250bar
- weight: 1.7g
Dimensions and Weight
l x w x h : 30 x 50 x 130 mm (spark plug) Weight : approx. 1 kg
