Positive displacement machines

Water Air
Soil             Waste
Internal combustion engines and steam engines
CT 150
 
CT 151
 
CT 152
Four-Stroke Petrol Engine for CT 159                              Four-Stroke Diesel Engine for CT 159                                      Four-Stroke Petrol Engine w. Variable Compression for CT 159   
Air-cooled overhead valve four-stroke petrol engine                                                                                                      Air-cooled four-stroke diesel engine with direct injection                                                                                                Air-cooled four-stroke petrol engine with different compression ratios thanks to interchangeable combustion chambers 
CT 153
 
CT 100.20
 
CT 100.21
Two-stroke petrol engine for CT 159   Four-stroke petrol engine for CT 110   Two-Stroke Petrol Engine for CT 110
Air-cooled two-stroke petrol engine                            Air-cooled four-stroke petrol engine with carburettor             Air-cooled two-stroke petrol engine with reverse scavenging  
CT 100.22
 
CT 100.23
 
CT 300.03
Four-Stroke Diesel Engine for CT 110                                                         Water-Cooled Four-Stroke Diesel Engine for CT 110          Single Cylinder Engine w. Variable Compression for CT 300      
Air-cooled four-stroke diesel engine with direct injection                                                                                                          Water-cooled four-stroke diesel engine using the swirl chamber principle                                                                                                                Operation as spark ignition petrol engine with external mixture formation or self-igniting diesel engine with direct injection
CT 300.04
 
CT 400.01
 
CT 300.05
Two-Cylinder Petrol Engine for CT 300 Four-Cylinder Petrol Engine                                    wo-Cylinder Diesel Engine for CT 300
under construction!                                                                                        Water-cooled four-stroke diesel engine with indirect injection      Water-cooled petrol engine with intake-manifold fuel injection, max. 55kW    
CT 400.02
 
ET 810
 
ET 813
Four-cylinder diesel engine                               Steam power plant with steam engine                 Two-cylinder steam engine                               
Water-cooled naturally aspirated diesel engine with direct injection, max. 47kW                     Double-acting single-cylinder steam engine with gas-fired steam boiler                                    Single-acting steam engine with condensation for determining mechanical power and efficiency

Piston compressors


ET 512
     
ET 513
     
ET 500
Air Compressor Test Unit   Single-stage piston compressor   Two-stage piston compressor 
Two-shaft system with radial compressor and two radial turbines using liquid gas                         Small single-shaft gas turbine with thrust measurement using either kerosene or petroleum            Operation as turboshaft engine with power turbine or as jet engine with propelling nozzle using liquid gas
         
ET 508
 
ET 165
 
ET 432
Simulation of a two-stage air compressor   Refrigeration System with Open Compressor   Behaviour of a piston compressor               
Simulation of a two-shaft system with power turbine allows easy understanding of the operating properties           Capacity measurement at the open compressor with variable speed; refrigeration chamber with adjustable cooling load   Investigations in an open two-cylinder piston compressor from refrigeration engineering                                                
       
MT 140
 
MT 140.01
 
MT 140.02
Assembly Station: Piston Compressor                                      Assembly Exercise Piston Compressor: Functional Test     Assembly Exercise: Piston Compressor               
Teaching station for demonstration of and introduction to assembly projects using a compressor as an example   Installation of the compressor MT 140 or MT 140.02 for operational check                                           Assembly of an industrial compressor, using simple tools and jigs                                                                              
         
MT 140.20
     
Multimedia Learning Software: Piston Compressor      
Illustration by animations: functions and assembly steps                   
         
Positive displacement pumps
In positive displacement pumps the energy is transferred to the fluid hydrostatically. In the hydrostatic transfer of energy a displacement body reduces a working chamber filled with fluid and pumps the fluid into the pipe. 
HM 285
 
HM 286
 
HM 365.16
Experiments with a piston pump   Experiments with a gear pump  Lobe Pump   
Record characteristics of a reciprocating positive-displacement pump              Record characteristics of a rotary positive-displacement pump                                            Lobe pumps are used for delivering highly viscous and highly abrasive media                      
HM 365.17
 
HM 365.18
 
HM 365.19
Reciprocating Piston Pump   Gear Pump   Vane Pump
The most simple type of reciprocating piston pump consists of a piston that moves in a cylinder with one inlet and one outlet valve   A gear pump is characterised by a steady flow rate                                                                                                                                               Vane pumps can be used both for liquid and gaseous media                                                                                                                         
HM 365.21
 
HM 365.22
 
HM 365.23
Screw Pump                 External gear pump  Vane Pump        
Screw pumps are able to provide continuous delivery of even viscous media without pulsation or turbulence   The pumping medium is transported between the gears and the housing                                                         Vane pumps can be used both for liquid and gaseous media                                                   
HM 365.24
 
CE 271
 
CE 272
Internal Gear Pump      Multi-head diaphragm pump   Rotary vane vacuum pump 
Operating behaviour of an internal gear pump                                                                       Investigate operating behaviour of centrifugal pumps, piston pump and side channel pump                      Interchangeable driven machines: three pumps, two compressors                           
CE 272
 
MT 182
 
MT 183
Rotary vane vacuum pump                                                 Assembly & maintenance exercise: Screw pump           Assembly & maintenance exercise: Diaphragm pump
Generation of negative pressure over time                                                                                                                                        Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance   Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance     
MT 184
 
MT 186
 
HM 362
Assembly & maintenance exercise: Piston pump Assembly & maintenance exercise: gear pump                         Comparison of pumps                                       
Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance   Understanding design and function of the pump; planning and executing assembly, disassembly and maintenance                       Investigate operating behaviour of centrifugal pumps, piston pump and side channel pump                                                                                  
HM 299
Comparison of positive displacement machines and turbomachines
Interchangeable driven machines: three pumps, two compressors
Cutaway models of positive displacement machines 
HM 700.20
 
HM 700.22
 
Cutaway model: piston pump   Cutaway model: gear pumpr