Please Leave Us A Message
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fuel Consumption Test System This system consists of a fuel consumption transmitter, a control solenoid valve and a fuel consumption meter. The fuel consumption meter and power meter are integrated as a power consumption meter. Fuel consumption transmitter principle. Fuel consumption transmitter diagram In the preset fuel consumption time t, the fuel consumption meter measures the initial and last two electrical difference V of the fuel supply, which can be used to calculate the fuel consumption m. From the fuel consumption A = m/t, the measured power N Calculate specific fuel consumption C=A/N.
Test Examples Using this test stand, a forklift was tested for braking performance, dynamic performance, and fuel economy performance.
Braking performance test braking force curve. As shown, the comparison of the two-wheel braking force can be used to judge the brake adjustment situation and the possibility of deviation. Traction force and power test The test of dynamic performance, traction force curve, power curve. The traction force curve can be made from the measured traction force and the corresponding vehicle speed. The traction characteristic curve shows the maximum speed and maximum traction force that the forklift can achieve when the engine throttle is fully open.
Fuel economy test By testing the fuel consumption of the engine at different throttle opening degrees, the fuel consumption and specific fuel consumption curve under the engine external working conditions can be obtained. It shows the fuel consumption ratio at different speeds, and the fuel consumption ratio of the most economical speed.
Piston expansion cylinder is because piston and cylinder liner cylinder gap is too small, piston and liner early wear and tear, in addition to poor cooling and cooling effect, improper assembly, the piston is not heated according to regulations, forced into the piston pin to deform the piston is also One of the main reasons.
After melting and abrasive wear occurs, a large amount of high-temperature and high-pressure gas is pulled out from the gap between the piston and the cylinder liner, not only the heat received by the top surface of the piston can not be transmitted to the cylinder liner through the piston ring, but also the piston outer circle and the surface of the piston ring are also gas. Strong heating, high temperature makes the lubricating oil deteriorate or even carbonize, the piston ring is bonded, the piston is burned, the cylinder is stuck after thermal expansion of the piston, and the top of the connecting rod is bent and twisted. When the piston is overheated, its mechanical performance drops rapidly, and the thermal load increases. This causes a large temperature gradient between the piston points. The increase in thermal stress causes the piston to crack from the point near the piston pin where the mechanical load is greatest, and is eventually broken.
The piston has zero movement speed at the top and bottom dead points. It is not easy to establish an oil film and form a boundary state friction. It is an overheated area. Therefore, the piston melt is near the top and bottom dead points, and the wear is also the most serious. At the top dead center, the mechanical load and thermal load on the piston are at the peak, and the expansion cylinder occurs near the top dead center.
Conclusion This test stand integrates the engine performance test with the brake performance test as an integrated test stand. The two test systems are independent devices. The control system is equipped with an anti-misoperation interlock mechanism to ensure the safe operation of the test bench. The test rig can be used as a forklift to carry out inspections and inspections of repaired vehicles, and at the same time provide a sound test method for teaching and scientific research. Data collection, processing and test results are completed by computers, reducing test time and improving the accuracy and objectivity of test work.
September 23, 2022
Mail a questo fornitore
September 23, 2022
February 07, 2023
February 07, 2023
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.