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This test stand measures the power output of internal combustion engines delivering up to 2,2kW. The complete test stand consists of three main elements: The CT 159 for mounting of the engine and as a control unit, the universal drive and brake unit HM 365 as a load unit and a choice of engine: four-stroke diesel engine (CT 151), two-stroke petrol engine (CT 153) and two four-stroke petrol engines (CT 150 or CT 152 with variable compression).
The main function of CT 159 is to mount the engine, supply it with fuel and air and record and display relevant measurement data. The engine is mounted on a vibration-insulated base plate and connected by way of a belt drive to HM 365.
HM 365 is initially used to start the engine. As soon as the engine is running, HM 365 acts as a brake for applying a load to the engine.
The lower section of the mobile frame contains fuel tanks and a stabilisation tank for the intake air.
The vibration-dampened switch cabinet contains digital displays for temperatures (one display each for exhaust gas, fuel and intake air) and air consumption. The speed and torque are adjusted and displayed on the HM 365.
The measured values are transmitted directly to a PC via USB. The data acquisition software is included.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
in conjunction with the HM 365 load unit and one of the engines (CT 150 - CT 153)
- plotting of torque and power curves
- determination of specific fuel consumption
- determination of volumetric efficiency and lambda (fuel-air ratio)
- determination of the frictional power of the engine (in passive mode)
 test stand for mounting of prepared single-cylinder engines (two-stroke and four-stroke) with a maximum power output of 2,2kW
 engine started by HM 365
 HM 365 acting as a brake generates the engine load
 force transmission from engine to load unit via V-belt drive
 continuous adjustment of speed and torque using HM 365
 vibration-dampened switch cabinet for display and control
 measuring tube with scale and pressure sensor for manual and electronic fuel consumption measurement
 measurement and display of air consumption, ambient temperature and fuel temperature
 measured value displays for engine exhaust gas temperature
 stabilisation tank for intake air
 3 supply tanks for different fuels
 GUNT software for data acquisition via USB under Windows Vista or Windows 7
- ambient temperature: 0...100°C
- fuel temperature: 0...100°C
- exhaust gas temperature: 0...1000°C
- air consumption: 30...333L/min
- fuel consumption: 0...50cm³/min
3 fuel tanks: 5L each
Dimensions and Weight
Weight: approx. 135kg Required for Operation 230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Scope of Delivery
1 test stand (without engine and load unit)
1 GUNT software CD + USB cable
1 set of connecting hoses + tools
1 exhaust hose, flexible, 2.5m
1 exhaust hose, flexible, 1m
2x ear muffs
1 set of instructional material