The piston rings in an internal combustion engine play a crucial role in maintaining a proper seal between the piston and the cylinder wall. These rings are typically made of cast iron or steel and are designed to fit tightly against the cylinder walls. honda accord piston rings,audi piston rings,bmw piston rings,honda piston rings 1D auto parts , https://www.1dauto.com
On January 3, 2014, Malaysian National Infrastructure Corporation (Prasarana) announced that Chinese company BYD won the company's electric bus tender project and won all 15 bus orders in the tender.
It is reported that the 15 electric buses in this tender will be operated by RapidKL, a subsidiary of Prasarana, and will be used for the first express bus line (BRT) in Kuala Lumpur, the capital of Malaysia. Bus station connection. Prasarana is a state-owned wholly-owned company in Malaysia. As the largest public transportation group in Malaysia, Prasarana is responsible for the management and planning of various public transportation assets such as the Malaysian subway and bus buses.
In July last year, Kuala Lumpur Express began trial operation of BYD pure electric bus K9. In October last year, K9 was arranged to perform analog operation on similar BRT lines (one-way 5.3 kilometers, 7 platforms). The test operation result was highly recognized by Prasarana. It is reported that in the test in Kuala Lumpur, K9 has a single-charge cruising range of over 400 kilometers on some lines.
At the launching ceremony of the K9 Malacca State Trial in January this year, the Governor of Malacca, Mr. Datuk Seri Idris Haron personally took the bus driver and drove the BYD electric bus after presiding over the electric bus recommendation ceremony. He then said to the presence: The electric bus is very comfortable. No noise from ordinary buses was generated during start-up and driving, and it was green and pollution-free. "Before the trial operation, BYD electric buses had already done various tests locally.
Zhao Yue, head of BYD Malaysia, stated, “We are honored to win Malaysia’s first tender for electric buses. Malaysia attaches great importance to the development of sustainable public transport. BYD hopes to work closely with its partners to advance the localization process and make local public transportation possible. Cleaner and quieter.Improving the quality of public transport has been incorporated into Malaysia's national development agenda. The Malaysian government believes public transport is one of the important causes of urban air pollution. The environmental protection and quiet of BYD pure electric buses are considered to be in line with this reform direction. After the high-level meeting between China and Malaysia, BYD will certainly add color to China-Malaysia economic and trade cooperation.
The bid-winning BYD electric bus body is 12 meters long and has a single-charge mileage of more than 250 kilometers under city road conditions. The iron batteries provided by BYD's electric buses have high safety and long service life, and they do not contain harmful substances and can be recycled. BYD's electric buses are currently put into operation in some cities in China, Europe and the Americas. BYD has become the world's largest manufacturer of electric buses. As of the end of December 2013, the total mileage of the BYD electric bus fleet in Shenzhen exceeded 20 million kilometers.
Firstly, the top ring, also known as the compression ring, is responsible for sealing the combustion chamber. It prevents the escape of gases from the combustion process and ensures maximum pressure is exerted on the piston. This ring is subjected to high temperatures and pressures, so it must be able to withstand extreme conditions.
Secondly, the second ring, or the oil control ring, is responsible for regulating the amount of oil that enters the combustion chamber. It prevents excessive oil consumption and helps maintain the proper lubrication of the cylinder wall. This ring is designed to scrape off excess oil from the cylinder wall and return it to the oil pan.
Thirdly, the oil scraper ring, also known as the third ring, is responsible for removing excess oil from the cylinder wall. It prevents oil from entering the combustion chamber and ensures that the piston rings remain properly lubricated. This ring is designed to scrape off any oil that may have passed the second ring.
Lastly, these piston rings are designed to maintain a proper balance between sealing the combustion chamber and allowing for the necessary lubrication. They must be able to expand and contract with the changing temperatures and pressures inside the engine. Proper installation and maintenance of these rings are essential for the efficient operation of the engine and to prevent any loss of power or excessive oil consumption.