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Automatic transmission (AT) Manual transmissions require high skilled operating skills for drivers, while automatic transmissions do not require too high operational skills. Nowadays, many automatic transmissions installed by automatic gear cars are controlled by hydraulic pressure. This kind of transmission is mainly composed of hydraulic torque converter and planet gear transmission. The transmission is controlled by electronic control system (ECU) and hydraulic pressure, so that it can automatically complete the transmission. The hydraulic torque converter acts as a clutch in the manual transmission, as well as as a torque converter, which can transfer the power of the engine to the planet gear transmission. The structure of automatic transmission Hydraulic torque converter The hydraulic torque converter is composed of input pump wheel, output turbine and guide wheel. It transmits the power of the engine to the planet gear transmission through hydraulic oil. When the pump wheel rotates, the hydraulic oil is fed into the turbine to make the vortex. The wheel rotates. Even if you step on the brake pedal, the hydraulic oil between the pump wheel and the turbine will continue to flow and produce friction, so the engine will continue to run, and release the brake pedal, even if you do not step on the throttle pedal, the vehicle can move forward slowly (creep phenomenon). In addition, due to the speed difference between the input and output ends, the torque will increase, which is why the torque obtained by the car at start-up is greater than the output torque of the engine. The hydraulic oil circulates between the pump wheel and the turbine, thus increasing the torque. There is a hydraulic oil that can flow freely between the input and the output, so the hydraulic torque converter can form an automatic clutch state. Some automatic transmissions are provided that when the speed increases to the same speed as the speed of the turbine and the pump wheel, the two are automatically connected to automatically transmit the torque of the engine. Planet gear transmission Fine variable speed can not be realized in hydraulic torque converter, but can be realized in planet gear transmission. A unit in a planet gear transmission consists of a central solar gear, an outer gear ring, a planet gear between the sun gear and the tooth ring, and a planet rack.The planet gear transmission changes the input force and output force by fixing different components, so as to complete the variable speed or reverse operation. The planet gear transmission is controlled by oil pressure, so the oil pressure control mechanism is also installed in the automatic transmission. Characteristics of planet gear transmissions: Change the transmission ratio to meet the needs of traction force under different driving conditions Transfer large torque Configure the input shaft and the output shaft on the coaxial shaft The disadvantage of distributing load on each planet gear and reducing wear and tooth rupture is that the structure is complex and the gear ratio calculation is complex. Continuously variable transmission (CVT) Manual transmission and automatic transmission can be variable step by step through gear, while continuously variable transmission can be carried out by belt wheel and transmission belt. The continuously variable transmission adopts transmission belt and belt wheel with variable slot width to transfer power. When the slot width of the pulley is changed, the radius of rotation of the transmission belt on the driving wheel and the follower wheel is changed, and the variable speed can be completed. CVT has high transmission efficiency and can make full use of the power of the engine, so it can not only maintain greater power, but also save fuel and reduce consumption.  In addition, it can also continuously control the operation and speed ratio of the engine, so that the vehicle can run smoothly and smoothly. In recent years, cars usually use step-by-step and stepless transmissions in conjunction with each other, which can compensate for the torque lost in the process of transmission to the transmission belt and chain, and at the same time, it can compensate the torque at the beginning of the vehicle. In the past, people focused on price and weight when designing cars; now, people pay more attention to the energy saving and driving comfort of cars. The structure of metal belt CVT: by changing the slot width between the two pulleys, the driving wheel and the follower wheel are changed. Upload the radius of rotation of the moving belt to achieve the purpose of stepless speed change. Double clutch …

LED lights are known to use energy more efficiently than traditional lighting technology. Yet they are mostly powered by electricity sourced from non-renewable energy. At this year’s LED Expo Thailand, Suwin New Energy Technology Ltd is introducing a way to …

Iran Tehran International Industry Exhibition —–-“The Belt and Road” open the trade between China and Iran   Iran Tehran International Industry Exhibition (TIIE) has been held every year since 2000, It is the famous international trade exhibition held by the government …

One company purchased four units of generator set from one genset manufacturer in Shanghai, China. All generator set suppose to be powered by CCEC engies, but unfortunately, after they paid all money and got the genset, reliaze that all gensets …

After Guidance on Strengthening Regulation of Gas Distribution Pricing published in the late June, NDRC officially issued The Opinion on Accelerating the Use of Natural Gas (hereinafter referred to as The Opinion) in July 4th. Experts said that the release …

With the genes of innovation,where’s the direction of innovation? Wang Ning’s answer is customers. He said,“we know that the value of product is brought out by complete vehicle products. We cannot only care about our own product and stay in …

Recently, it took police 90 days to successfully solve the case of extra-large producing fake engine in Xiangyang Hubei. Over 10 people from two companies that manufacturing copy DCEC engines has been caught and putted in jail by policeman in …

Over 10 people from two companies that manufacturing copy DCEC engines has been caught and putted in jail by policeman in Xiangyang city, where DCEC engine factory located. It is reported as news on CCTV and you can check the …

One: Shenzhou XI spacecraft docking with Tiangong II surprises many countries. Recently, Chinese Shenzhou XI spacecraft spends 575 seconds to dock withTiangong II, which shows us a splendid space travel. The 575 seconds attracted eyes from all over the world, …

International Trade Fraud International trade driving the world forwarder, it is very wonderful thing to do business with people from different countries. No matter suppliers or customers, our life is inseparable from international trade, but there are lots of international …

First, the constraint of price and export order. Our province’s diesel generator sets has exerted an impact on exports of some enterprises due to technical factors, as well as rising price of raw material and transportation. Price competition is rather …

Recently, Economic Development Department of Samara Oblast in Russia revealed that China Dongfeng Yangtze Automobile Co.,Ltd has began its preparatory work that it handled the land procedures in order to establish Passenger Automobile Factory in Samara Oblast, according to the …

The performance and sealing of diesel generator set are influenced by the valve, which is one of the important parts of generator sets. Under strong mechanical loading and high temperature corrosion, all sorts of valve problems may appear, thus correct valve installation for diesel gen set is the most important prerequisite to guarantee the usage effectiveness. As for the considerations about the valve installation, Sino-Gen will list for you as following: After installing the new catheter into the cylinder head, use the reamer to adjust the roundness of conduit and the size of inner bore, make the gap between the conduit hole and the valve rod conforms to the diesel gen set specification. There is no need to process the valve stem which has finished machining. During the usage process, the gap between the conduit hole and the valve stem shall not exceed the wear limit in the diesel gen set specification. Generally speaking, if the gap between valve rod and conduit is 0.13 mm (the stem diameter of valve equals to or less than?8 mm) or 0.16 mm (the stem diameter of valve is greater than?8 mm), it is necessary to replace the valve or conduit, otherwise early damage will cause to the valve. 2, Do not mix the package of different valves, for the same series valve on different models of diesel gen sets may differ. 3, As for the valve seat deformed or burned, adjust it by reaming and grinding. Do not only recover them by valve facing up. Replace the unrepaired valve seat, the mouth of replaced valve seat should be co-axial with the conduit hole. The admissible error of the coaxiality should be within 0.03 mm. When installing the valve into the valve seat, the deflection between valve and cylinder head should conform to the gen set specification. Face up the valve and valve seat gently. To guarantee the sealing of the valve, do not use coarse grinding materials. The contact parts between the valve seat and valve cone should be located in or below the valve cone part. Valve and seat ring must be sealed, if not closely sealed, it will lead to the power decrease of gen set and early damage to the valve. 5. After grinding, use the kerosene to clean abrasive material, then use clean engine oil to lubricate valve rod and conduit.

POWER-GEN Asia, co-located with Renewable Energy World Asia and the POWER-GEN Asia Financial Forum, as part of ASEAN Power Week, is the leading force in delivering a platform for the power industry to meet, share information on the challenges facing …

High power belongs to the category of high power diesel engine in internal combustion engine. It uses diesel oil as fuel. It mainly releases fuel combustion heat energy into electrical energy or mechanical energy equipment. This article will introduce the …

Locomotive diesel engine is widely applied in car and internal combustion engine or vibration car. There are a lot of experts studying its use in railway traction method after this kind of diesel engine was invented. This article will mainly …

Since founded, DCEC is the pioneer of Chinese engine industry. In Wang Ning’s view, thanks to the development of China’s reform and opening-up and the development of the economic environment, DCEC developed rapidly. Dongfeng is one of the most outstanding …

1. Purchase diesel generator set is the same as buying other things. The right is the best. According to the requirements and the application of the company, if homebred brands can meet them, there is no need to buy imports. …

LNG advantage Natural gas is high quality, efficient, clean energy, liquefied natural gas (LNG) can be like oil safe and convenient storage and transportation, the development of liquefied natural gas (LNG) technology, improved the natural gas in the global competitive.As …

LNG advantage Natural gas is high quality, efficient, clean energy, liquefied natural gas (LNG) can be like oil safe and convenient storage and transportation, the development of liquefied natural gas (LNG) technology, improved the natural gas in the global competitive.As …

DCEC Together with YTO Group Corporation Exploit the Top Market of Chinese Agricultural Machinery Recently, China International Agricultural Machinery Exhibition 2014 was opened in Wuhan. The exhibition attracted around 1,600 exhibitors at home and abroad.   Four units DFH LF …

Our sales teams will go to 2014 Guangzhou International Power and Generating Sets Exhibition on 26th November 2014, If you want to arrange a meet at the bauma China 2014 exhibition, please contact our sales managers directly on: vivi@emac.cc EMAC …

About 50 percent of the world’s gas stations are still haven’t supply standard diesel according to statistics. And includes the Chinese mainstream stations.The impurities in the fuel supplied by global gas station has almost double in the past few years.conservative …

EMAC International, a power solution industrial leader in DCEC related products which include DCEC engine, DCEC parts and DCEC generator set, now we provides a special offer for engine 4BTA3.9-C125. DCEC engine 4BTA3.9-C125 is manufactured by DCEC in China (joint venture …