“The annual output of Yuchai’s engines with a power of 240 horsepower or above is increasing at a rate of 20%.†Recently, the relevant person in charge of Yuchai said in an interview that “In the past two years, driven by market demand, Yuchai’s The power performance has been greatly improved, and the technology of the turbocharged intercooler has improved the power of the 6112 diesel engine from 270 horsepower to 300 horsepower, and the newly developed 310- to 350-horsepower four-valve YC6L series engine has sold more than 260 units. The 10 litre YC6M diesel engine has a power of 320 horsepower to 380 horsepower and a maximum power of 400 horsepower.†Two years ago, most of Yuchai's engines still had a power of less than 180 horsepower.
In the past two years, the power of automobile engines produced by other domestic manufacturers has increased in varying degrees. Among them, the power of the newly improved 498 light engine of FAW Dachai has been increased to 135 horsepower, the power of the traditional 6110 diesel engine has also been increased to 160 horsepower to 210 horsepower, and the power of its high-end product 6DF has reached 240 horsepower. Achieve 280 horsepower. In the three series of 6110, 6DF and 6DL products of FAW Xichai, the improved power of the old 6100 has been increased to 240 horsepower to 280 horsepower, and the newly developed 6DL diesel engine has reached 260 horsepower to 350 horsepower. Weichai and foreign companies jointly developed new products for high horsepower diesel engines, which increased the maximum power of the Weichai engine from 360 horsepower two years ago to 400 horsepower now.
The trajectory of the domestic diesel engine power increase is: In the 1980s, the average single-engine power of medium-sized gasoline vehicles produced mainly by FAW and the original two steam vehicles was only about 100 horsepower; in the 1980s and 1990s, boreholes and bores were developed in China. Diesel engine with similar gasoline engine, horsepower increased to 150 horsepower, when the introduction of the Cummins B-series diesel engine power limit of 180 horsepower; currently, the power of diesel engines for medium trucks are mostly raised to 150 horsepower to 200 horsepower; to the end of the 1990s The average single-engine power of domestic truck engines is already close to 300 horsepower; at present, the average domestic single truck power has been increased to 320 horsepower to 340 horsepower.
Industry insiders believe that the domestic engine power increase trend is consistent with foreign countries. Today's heavy-duty diesel engines in the United States have doubled their power compared to their counterparts in 1970 (the most powerful engine has reached 600 hp), fuel economy has increased by 50%, emissions have been reduced by 90%, and life expectancy has increased by 4 times However, the cost has been reduced by 70%. In 2002, the average single-engine power of North American heavy trucks has reached 450 horsepower. The development trend of European automotive power is roughly the same as in North America. The average single-engine power of domestic truck engines will continue to increase and will exceed 400 hp by 2010.
Why domestic car engine power can be quickly improved?
Some people think that the rapid growth in demand for high-power engines in the domestic market, the lag in domestic engine development, and the scarcity of varieties have provided market opportunities for foreign companies that have high-end automotive engine technology, allowing large numbers of foreign high-power engines to enter the Chinese market. The large-horsepower engines produced by joint ventures and the introduction of technology are the main engines for boosting domestic engine power. For example, the annual sales of Cummins high-power diesel engines in the Chinese market will reach 160,000 units this year (almost one-third of its annual production), and the number of vehicles in China will exceed 700,000 units by the end of this year. The B-Series engines produced by Dongfeng Cummins have been enhanced by technology, and the power has been increased from the introduction of 180 horsepower to 210 horsepower; after the expansion of the joint venture, the newly introduced C-Series engine power limit is 325 horsepower, and the full electronic control, emissions have reached Europe III The standard L series engine has a power of 370 horsepower, displacement of 3.9 liters, 5.9 liters, 8.3 liters, 8.9 liters, and an annual production capacity of 150,000 sets. It has become one of the main drivers for domestic heavy-duty vehicles and large passenger cars.
Some people think that the main reason for the increase in the engine power of automobiles is that the implementation of emission regulations has enabled diesel engine technology to make rapid progress. It not only satisfies the requirements of emissions regulations in different periods, but also satisfies the needs of automotive users for engine power, power density, reliability, and longevity. And price requirements.
Others believe that the medium-sized vehicles running at 5 tons to 10 tons are expensive to transport, have high cost per ton-kilometre, and have low economic benefits. They do not meet the requirements of users for the "dragging and running" of automobiles. Therefore, its market is gradually shrinking. Heavy-duty large tonnage trucks are in rapid development due to their large power, strong power, low fuel consumption per ton-kilometer, and good economic benefits, providing a vast market space for high-power engines.
Although in the process of increasing the engine power of automobiles, the increase in new products provides users with more choice opportunities. However, due to the misuse of engines, there have been violations of “large tonnage†and overloaded transportation, and the safety of people’s lives and property. And society poses a hazard. Relevant experts appealed that automobile manufacturers should use reasonable matching and reasonable calibration when selecting engines, so that engines with different powers will each get their own place and oppose unfair competition; users should consciously abide by laws and regulations and not overload transportation; relevant departments should strengthen management and strictly enforce laws. , Prevent and sanction the phenomenon of “large-tonnage small-scaleâ€, overloaded transportation, and maintain good transport order.
hydraulic block valve 100L/min
Max. Flow: 100L/min
Pressure: 310Bar
GKV100 series
GKV100 proportional valve is a stackable valve with interchangeable control styles.
Electro-Hydraulic pilot valves can be either 12 VDC or 24 VDC,corresponding current is 0-1.5 or 0-0.75Amp.
This series can provide following functions:
- Inlet module with pilot supply.
- Inlet module without pilot supply.
- A/B Port with overload valve on main section
- A Port with overload valve on main section
- B Port with overload valve on main section
- A/B Port with P.O. check
- A Port with P.O. check
- B Port with P.O. check
- End Cap with oil return function
- End Cap without oil return function
We can also choose other cartridges according to your requirement.
Valve Block,Standard Valve Block,Alloy Valve Block,Hydraulic Valve Block
Hangzhou Hanray Industry Co., Ltd , https://www.airsuspensionride.com