With the continuous rise of oil prices in recent years and the ever-increasing competition in the automotive industry, major US car manufacturers that used diesel engines only on heavy-duty pickup trucks have started to research and develop light-duty diesel vehicles to fully exploit the fuel economy advantages of diesel engines.
Cummins has cooperated with the U.S. Department of Energy in the development of 4.2-liter V6 and 5.6-liter V8 light-duty diesel engines since 1998. After nearly a decade of research and development, the key performance indicators such as power performance, exhaust emissions, fuel economy, and noise have all achieved the desired goals. It is expected that before 2010, the engine plant in Columbus, Indiana, where the Cummins headquarters is located, will be officially put into production.
View related topics: Cummins - world-class engine manufacturer
What disease can dry air cause
It will not lead to specific diseases, but only some hazards.
1. It is easy to cause excessive loss of body water, infect diseases and accelerate aging. In a dry environment, when we get up every morning, we will feel dry mouth, tight muscles and low mood. Especially for women, the skin's muscle fibers are composed of a large amount of water-soluble collagen. Drying makes the muscle fibers shrink due to rapid water loss. Over time, the muscle fibers may break, and the skin will have unrecoverable wrinkles and aging.
2. Easy to cause the spread of bacteria. Dry air is the main reason for the increase of dust and suspended particles, while bacteria can not exist alone and often adhere to dust. The elderly and young children have weak physical resistance and are vulnerable to bacteria and viruses. Warm and dry is the best environment for the breeding and transmission of many viruses and bacteria.
Tips for reducing air drying:
1. Put the peel on the heater
Usually after eating oranges and grapefruits, don't throw away the peel. The moisture content of these peels is large. If the car information is placed on the heating, it can also play a certain humidification effect. In addition, it can also emit a fragrant fruit fragrance and purify the air.
2. A basin of water with a wet towel
Still put a basin of water, but put a wet towel on the basin. Half of the towel is immersed in the water and half is out of the water. The contact surface between water and air in the washbasin is small, so it volatilizes slowly. After building a wet towel, the contact surface becomes larger, and the humidification effect is naturally much better. Moreover, the towel can continuously absorb water from the basin and is not easy to dry.
Reference: people.com - 9 Tips to teach you to fight against dry winter. Science has proved that the harm of dry air to human body is very serious. Medical experts point out that under normal circumstances, the appropriate health humidity of the human body is between 45% RH and 65% RH, while in autumn and winter, the air humidity in northern China is generally below 30% RH, which can not meet the health requirements of the human body.
Another simple and effective way is to put an Aroma Diffuser in the room. It can take effect effectively and immediately, humidify the air and solve the problem of air drying. The ultrasonic aroma diffuser is required, and the fog is sprayed out through vibration
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