As the world Diesel engine The rapid development of sector and environmental groups the planet gradually strengthen the fight against environmental pollution issues, the correct operation of diesel injection equipment becomes increasingly essential. In order to achieve the ideal diesel engine operating, minimum fuel consumption and minimize emissions of purpose, it must Engine The complete approach of production and the use of the fuel method calibration as considerably as achievable. Now the world’s emissions for diesel engines developed a number of problems associated to requirements, the 2008 Beijing will implement the diesel engine in Europe? Standards, in the next decade China will carry out the implementation of the requirements For that reason, the measurement of diesel engine fuel technique tools “Pump Test” top quality specifications to be enhanced.
1. Pump Test Solution Status Domestic makers of fuel injection pump test stand has been given that the eighties, the number remained stable, according to speed and power transmission mode classification strategy, the domestic production of the factories are frequent test bed, primarily of drive slip clutch transmission and exchange Inverter Speed of two types of merchandise. The production machinery, hydraulic speed test rig have a DC speed manage of the two, and its yield is fairly low, more than the total combined annual output of 3 kinds of products significantly less than 1 million units.
2. Pump Test Manage System Power Status
(1) mechanical rotation speed Test Mechanical rotation speed can be adjustable test rig is utilised to achieve the fuel pump drive pulley rotational speed of the CVT to persuade the. The type of test stand began in the late fifties in domestic production, simply because of its straightforward structure, straightforward production, the sector in fuel pump upkeep account for a big market, but the varieties of merchandise with low transmission efficiency, speed narrow, challenging to meet the higher-speed, Debugging higher-energy diesel engine fuel injection pump, at the moment only a modest quantity of this type of test bed, primarily for tractors, building machinery and other little and medium-power diesel engine fuel injection pump of debugging, such goods are currently out of product.
(two) Hydraulic Test Bench Hydraulic Transmission Test Bed, the transmission efficiency and speed stability, usually capable to satisfy the requirements of different varieties of fuel injection pump debugging. Given that the domestic production because the sixties, is a mechanical test bed replacements. At present, fuel pump repair market has a larger market.
As the product is Hydraulic Pump Drive hydraulic motor to make the drive shaft speed, and its Hydraulic Components Require higher precision, the structure is fairly complicated, creating manufacture much more tough to use in upkeep far more difficult, the operation is quite practical, voice loud. As a result, the species present in the pump test rig makers oil Tsui has been basically eliminated.
(three) slip-sort test bench Slip differential test rig is the end of the seventies started mass production of merchandise, producers and upkeep of pumps Tsui sector has big holdings.
Base slip clutch test rig is typically supplied by producers to design merchandise and matching with the ordinary three-phase asynchronous motor, there are some makers straight with the skilled manufacturers of electrical slip speed motor assembly on the test stand .
Major attributes of such a test stand is easy in structure, straightforward maintenance, use and practical operation, higher reliability, its performance can meet the pump oil Tsui production debugging and maintenance industries. But there are also unstable speed handle overall performance, likely to trigger defects such as speed handle, the failure of the equipment maintenance and operations personnel have a particular degree of threat, for which person producers of the goods in the measurement and handle instrument portion of the pre-installation of the speed Buy protection, which efficiently make sure the security of equipment operation.