Thermodynamics > Internal combustion engines test beds





The equipment is intended for testing automotive engine.

The engine rests on four supports on one end of the test bed. The supports can be adjusted in three directions to accommodate different size engine. The dynamometer with speed and torque sensors rests on another end of the test bed. The engine is connected to the dynamometer by a double universal joint with a safety guard. Cooling of the engine and the dynamometer is by a cooling tower. A flexible stainless steel hose is provided for exhaust pipe connection. Engine throttle and dynamometer load control are by knobs.

Instruments are provided for measurement of dynamometer torque and speed, fuel flow rate, air flow rate and temperatures.

A fuel tank with fuel flow and air flow measuring instruments are on a stand next to the engine.

Instruction manual is also included.

  • Torque vs engine speed at various throttle settings

  • Engine brake horsepower and efficiency vs speed

  • Specific fuel consumption

  • Air / fuel ratio

  • Volumetric efficiency

  • PV diagram (optional)

  • Dynamometer:
- Type: Water brake absorber   
- Maximum power: Over 150 kW   
- Maximum speed: Over 5000 rpm   
  • Engine
: Good used gasoline engine   
 : 1500 cc or larger, with fuel injection system, O2 sensor and catalytic converter.   
  • Cooling system:
- Type: Cooling tower with circulating pumps   
- Capacity: Approx. 50 RT   
  • Measuring instruments:
- Sensor with digital display:  Torque and speed   
 : Differential pressure (for air box with pulse reducer and orifice plate for measuring air flow rate)   
 : Temperature of engine cooling water inlet and outlet, absorber water outlet, exhaust gas, and ambient air   
- Fuel flow rate         : Graduated cylinder and stop watch   
- Barometer: 1   
  • Safety features
: Low oil pressure warning lamp, battery charging lamp, pump operation lamp   

over temperatures for engine and dynamometer, and propeller shaft guard.

  • Other accessories
: Battery, alternator, starter, and fuel tank   
  • Power supply
: 380 V, 3 Ph, 50 Hz. Other power supply is available on request.   

Test Bed:

  • Net (unassembled) Shipping Dimensions WxLxH: 130 x 400 x 225 cm
  • Net Weight: Approx. 750 kg

Cooling Tower:

  • Net (unpacked) shipping dimension WxLxH Maximum up to :  270 x 196 x 223 cm
  • Net weight :  Approx. 225 kg


  • MT505S
Learning Software
 to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.
  • MT505-001
Good used diesel engine instead of gasoline engine
  • MT500-010
Portable exhaust gas analyzer (HC, CO, CO2, O2, NOX)
  • MT500-030
P-V diagram set
  • MT500-030D
Sensor adapter for selected diesel engine
  • MT500-030G
Sensor adapter for selected gasoline engine
  • MT505-ECWA
Water cooled eddy current absorber instead of water brake absorber
  • MT505-005
Thermostatic tank for engine cooling water temperature control
  • MT505-040
Exhaust fan for the case of long exhaust pipe.
  • MT505-041

Torque arm with standard weights for torque calibration.

  • MA202-450
Water manometer for differential pressure calibration.
  • MT505-050
Computer Interface (computer not included)
 This includes MT505S and significant sensor(s) instead of analog measuring instrument(s), data acquisition (capture, display, graph and/or data export),
 additional software function for real-time data logging with computer interface unit and WiFi feature for data logging and real-time display remotely on smartphone (iOS and Android)
  • MT505-060
Computer Control (computer not included)
 This includes MT505-050 with the additional accessories for control function and additional software function for equipment controls by computer

MT505-060 Computer Control

  • MT505S
Learning Software
to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.