The unit consists of two centrifugal pumps with multi speed motors and a storage tank on a steel base, and measuring instruments. By manipulating flow control valves, each pump can be operated individually or both pumps connected in series or parallel. Compact Series And Parallel Pump Test Set Multi Speed is a self contained bench top unit for studying the series and parallel pump characteristics at three different speeds.
Experiments:
Flow rate vs head at a fixed speed for two pumps connected in series or parallel.
Flow rate vs head at various speeds for individual pump.
Compact Series And Parallel Pump Test Set Multi Speed is a self contained bench top unit for studying the series and parallel pump characteristics at three different speeds. By manipulating flow control valves, each pump can be operated individually or both pumps connected in series or parallel. The unit consists of two centrifugal pumps with multi speed motors and a storage tank on a steel base, and measuring instruments.
Experiments:
Flow rate vs head at a fixed speed for two pumps connected in series or parallel.
Flow rate vs head at various speeds for individual pump.
The pump has a very simple and robust set-up and never the less has a very high capacity. The pressure and suction valve and the oil duct are cut open. If the rotor is turned, the enlargement and reduction of the working area can be seen particularly well, as can the contact of the slide shoes in each position of the vane. In order tosupply a vacuum for brake boosters, vacuum pumps are used in both diesel and,increasingly, in Otto engines.
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Powered by Universal Drive and Brake Unit
Pressure sensors at the inlet and outlet of the pump
Examination of a standard centrifugal pump
Pressure display on the display unit
Operation with Supply Unit for Water Pumps
Pumps in a pipe system are used to convert mechanical energy into hydraulic energy this additional energy allows a fluid to move when it is not possible by gravity and for example, to raise a fluid at a certain height above the pump or make it recycle in a closed system. The working principle of a centrifugal pump is based on the fluid inlet in the middle of the impeller, which blades conduct the fluid and thanks to the centrifugal force it is driven outward. In general, the main purpose of a pump in a system is to increase the total energy H. At this point, the fluid is collected and contained by the pump casing which, thanks to its shape, drives the fluid to the outlet pipes or to another impelling stage.
Module For Centrifugal Pump Characteristics is made through a frequency inverter which adjusts the working speed according to each case of study. Module For Centrifugal Pump Characteristics equipment allows the study of the characteristics of a pump working individually at different rotational speeds. These curves can be compared with those supplied by the manufacturer, as well as those obtained by mathematical calculation. The flow measurements are made using volumetric hydraulic of the hydraulic bank (required), that is used also to study the relation between pressure loss and the fluid speed. In addition, the flow control valve manages the pump operating mode in order to obtain experimental operating curves.
Suction andpressure effect via reduction or enlargement of the chambers.
Function ofthe timing chain drive.
Function ofthe pressure relief valve.
Common stroke rate adjustable for all 3 heads
Stroke individually adjustable for each head
Examination of a multi-head diaphragm pump
Diaphragm pump with 3 heads
3 scaled tanks to determine the flow rate
1 feed tank
6 manometers to measure the pressure on the intake and delivery side
3 overflow valves to set the counter pressure.
All components are cut away:
Injection timing device
Distributor plunger
Pump timing case
Cam ring
Vane-type pump
Solenoid valve
The following functions can be demonstrated:
Incremental angle / time recording,
Distribution
Fuel feed
Injectiontiming.
Operation ofthe high-pressure piston
The return flow throttling valve
The shut-off valve
The solenoid valve.
The pump canbe connected to a 24 Volt transformer.
Key 1: This moves the control bar. Volume control by operating magnet.
Key 2: This rotates a shaft which moves the slide valve. Injection control by operating magnet.
Further Functions:
Controltravel sensor,
Pressure valves,
Feed pump,
Emergency-stop valve,
Positionsensor and pump pistons.
Connection toa 12 V transformer enables the volume control by the operating mag- net to bevisually demonstrated.
Further functions:
Emergency-stop valve,
pressure valves,
feed pump,
control travel sensor,
position sensor and pump pistons.
Displacementof the piston rod - torsion of all pump plungers
Function ofthe RSV governor
Function ofthe pressure valves
By turningthe camshaft one can see the stroke of all pump plungers.
Function of the RSF governor
Function of the pressure valves
Displacement of the piston rod
Torsion of all pump plungers
By turning the camshaft one can see thestroke of all pump plungers.
The Basic Module Water Pumps is part of an equipment series that facilitates the investigation of a wide range of engines and machines. The pumps are installed in the experimental set-up using flexible hoses with rapid action couplings. The flow rate is set on a ball-cock and acquired with a magneto-inductive flowmeter. The sensors for intake and delivery pressure are fitted to the pumps to be investigated. Different water pumps can be operated on the basic module and investigated in respect of their characteristic behaviour. The drive motor for the pump drive is fitted to the Universal Drive and Brake Unit. All sensors are connected to the measuring unit that is part of the basic module. The measured values recorded are displayed on digital displays on this block.
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Receptacle With Pump is used in conjunction with the filling tank.
Technical features:
Signal voltage range: 0 . . . +10 V Â
Power consumption of the pump: 10 W max.
Vessel capacity: 1.5 l approx. Â.
Torsion of all pump plungers
By turning the camshaft one can see thestroke of all pump plungers
Function of the RQV governor
Displacement of the piston rod
Function of the pressure valves.
The unit itself includes the electric drive motor with speed control, 2 pressure vessels for the compressor experiments, a measuring tank and a supply tank for the pump experiments and a protection cover. The intake and delivery pressure, temperature, motor speed and power are measured and displayed digitally. The modular system allows the investigation of different machines (reciprocating machines and turbo machines). The corresponding flow is measured indirectly and transferred to the PC data acquisition software. Each machine is mounted on a base plate, which can easily be fitted into the unit. It is powered by a belt drive. Hoses with quick-action couplings provide the supply lines.
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Possible demonstrations:
Function of vacuum governor
Stroke of pump plungers
Function of pressure valves
Displacement of control rod
Function of supply pump
Rotation of the pump plungers.
Possible demonstrations:
Rotation of the pump plungers
Stroke of pump plungers
Function of centrifugal governor
Function of supply valves and pump
Displacement of control rod
Function of pressure valves.
The eccentric shaft is guided onthe drive side by a roller bearing and opposite by a plastic friction bearing. Also cutaway: fuel return with shut-off attenuator, quantity control valve with magnetic coil and filter. The necessary high pressure is generated by a 3-plunger radial-piston pump with the following features: compact construction, stainless steel housing with integrated quantity control valve, fuel-lubricated, shut-off attenuator, max. fuel pressure of 200 bar. The knurled screw can be used to drive the high-pressure pump and one sees how the pump pistons work.
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Function of the delivery plunger -function of the 2 valves-elastic delivery by means of the plunger spring.
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