Modular Test Stand for Single Cylinder Engines, 2,2kW
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 quietening vessel 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 an engine (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)
* Set-up of a complete test stand in conjunction with the universal drive and brake unit HM 365 and an engine1 * Test stand for single-cylinder internal combustion engines up to 2,2kW1 * HM 365 drive and brake unit used as load unit, also as starter motor1 * Part of a modular series of units for investigating a range of different engines and machines
 test stand for mounting of prepared single-cylinder engines (two-stroke and four-stroke) with a maximum power output of 2,2kW  HM 365 acting as a brake generates the engine load  engine started by HM 365  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  quietening vessel for intake air  3 supply tanks for different fuels  LabVIEW software for data acquisition via USB under Windows XP or Windows Vista