The pressure spring is made from 1.5mm diameter carbon spring steel wire. Length: ≥65mm, diameter: 15mm. Both ends with rings.
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Hydrogen Fuel Cell Demonstration Device
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The material is steel, wood, aluminum, plastic, and hook, cube size 3*3*3CM.
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Life Science Turbidity Standard, 126 NTU, 1 gallon.
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Knit wrist cuffs provide comfortable and secure fit
Made of 65/35 Polycotton
Front snap closure
Knit cuffs
One outside left breast pocket, two outside lower pockets
Standard pointed collar
White.
Field and Detector Coils
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The basic tribological phenomena of journal bearings can be investigated using this unit. A lever with a sliding weight attached to it is connected to the bearing housing. This enables an external moment to be set corresponding to the friction moment generated in the bearing. The journal bearing to be investigated consists of a stainless steel bearing journal and the free-moving gunmetal bearing housing. A three-phase ac motor with a frequency converter for speed control serves as the drive. Another lever, combined with a set of weights, applies the defined load to the bearing. It is possible to view the bearing journal and the lubrication gap through the transparent cover. The continuously adjustable speed, as well as the temperature of the lubricant, is indicated digitally on the control unit. Lubricant is supplied by a drip-feed lubricator that feeds oil to the shaft via two lubrication channels. A drip tray collects the oil that leaks out.
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The flow measuring instruments are connected in series and all except the measuring tank are arranged on a water proof panel. The pressure drop is measured by deferential pressure using manometers. Pressure tapping is by valves with quick connection. Flow Measurement Test Set is a bench top self contained water circulating unit for studying the various flow measuring instruments including primary flow measuring devices. Flow rate is obtained from a water meter reading and a stop watch. Water tanks are behind the panel. Flow rate is varied by a flow control valve. Measurement of flow by a primary flow measuring devices is by coefficient of discharge which is determined from a pressure drop across the device and a flow rate.
Experiments:
Determination of coefficients of discharge for Venturi meter, orifice meter and Pitot tube and compare the flow rates with those from water meter, variable area flow meter and measuring tank.
Comparison of differential pressure at various flow rates for Venturi meter, orifice meter, Pitot tube, and variable area flow meter.
A bench top service unit makes it possible to supply the electrical feedings and measurement facilities. The Computerized Heat Transfer Study Units has been designed to carry out experiments concerning the basic modes of heat transfer. Thus the student can investigate conduction, convection, radiation and their combined effects, no steady state and measurement errors.
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The shape of the duct may be changed by tilting and sliding moveable elements to allow students to investigate the Coanda effect of jet attachment to a wall.
A rectangular slit directs an air jet towards a Y shaped duct with two outlet passages.
By blowing air from one side or another at the jet, the airflow can be directed down either of the Y shaped passages as in a pneumatic flip-flop.
The installation of a gearshift rod with abutton and a mechanical clamping lever means that all the gears can be shiftedand the function of the hydraulic controls demonstrated. The automated, sequential six-gear transmission developedfrom the classical six-gear manual transmission is controlled by the enginemanagement. With the help of a hydraulic piston, 2 gears can be shifted on eachshift level. In this way, the old gear is firstly removed and then the selector shaft turnedonto a different shift level by a pin in the arrested gate sleeve when theinlet selector shaft is displaced by the first hydraulic piston. To change to another shift level, a gate sleeve, which had beenable to rotate loosely up to then, is arrested by a second hydraulic piston. Now, shiftinginto the next gear is possible.
The following are cut away:
Transmission housing front and back, hydraulic pump with electric engine, hydraulic unit and the hydraulic pressure accumulator.
Using original electric vehicle electric power system, it can show structure and working process of electric vehicle electric power system, it can perform operation for starting and running of electric vehicle electric power system operation.
Features:
Well- run electric vehicle drive system, to demonstrate composition structure and working process of electric vehicle drive system.
The trainer is equipped with throttle control device which can facilitate the electric vehicle drive system for acceleration and deceleration.
Trainer base adopts steel structure welding, with spray paint treatment and self-locking casters.
The test meter is installed on trainer panel which can real-time display power transmission process, speed, fault parameters change of electronic control system etc.
Trainer panel uses 4mm-thick aluminum plate with corrosion resistance, impact resistance, pollution resistance, fire prevention, moisture proof function, the panel printed by color circuit diagram to understand and analyze the working principle of the control system through circuit diagram and driving system object.
Compressometer For Cylinders dia. 100x200mm; dia. 112,8x220mm; dia. 4x8.
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Grinding Wheel: CBN Wheel For HSS Drill Bit / SD Wheel for Carbide Drill Bit.
End Mill Resharpener portable end mill grinder, can grind 2-flute, 3-flute, 4-flute.
Choosing can grind 5-flute.
Standard equipment: six collets ten collets.
Theoretical topics:
Characteristics of Wien bridge Oscillators with Oscillators amplifier
Characteristics of RC-phase shift Oscillators
Characteristics of Meissner Oscillators
Characteristics of Crystal Oscillators
Characteristics of Wien bridge Oscillators with transistor
Characteristics of Colpitts Oscillators
Fault simulation
Characteristics of non-inverting crystal Oscillators.
Circuit blocks:
Low frequency Oscillators: Phase shift oscillator Wien transistor oscillator Wien OA oscillator
Astable Monostable Bistable multi vibrators
Quartz frequency Oscillators: Sinusoidal crystal oscillator CMOS non inverting crystal oscillator.
Trainer on heating systems and plumbing
4 bimetallic dial thermometers
2 water connections for boiler dn 15
2 heating water connections dn 15
3-way mixing valve dn 20
Circulating pump
1 differential pressure overflow valve
4 rotameters
Water connections made using quick-release couplings.
The trainer is composed of:
A control module, containing the interface circuits for the sensors and the actuators and the ON/OFF, proportional, integral and derivative control circuits (PID).
An educational board with a pressurized vessel and a set of sensors and actuators for level, pressure, temperature and flow;
Technical Features:
Water tank capacity: 20 litres approx.
Pressurized vessel capacity: 5 litres approx.
Level sensors:
On reed ON/OFF sensor
Linear variable differential transformer (LVDT)
Temperature sensors:
Bi metallic direct reading thermometer
Platinum thermo resistance
Flux sensors:
Flowmeter, direct reading
Flowmeter 8000 pulses/ litre
Pressure sensors:
Manometer, direct reading
Strain gauge.
Flow setting by manual stroke length adjustment (including during operation)
Manual drive with crank instead of a drive motor
Learning concept for maintenance and repair exercises on a single-diaphragm pump
The kit forms part of the GUNT assembly, maintenance and repair practice line
Diaphragm and push rod directly linked
Pump parts and tools housed in a tool box.
