The nation’s first gas-electric hybrid bus with completely independent intellectual property rights was officially rolled out at Chongqing Hengtong Bus Company yesterday. At present, Chongqing Bus Group has purchased 50 vehicles and it is expected to be put into operation before the end of this year.
According to the person in charge of the technology of Hengtong Bus Company, the vehicle body length is 12 meters, and more than 33 seats can be installed. All the three key components systems of permanent magnet motor, high voltage battery and management system have been realized, and the vehicle is braking. When decelerating, the kinetic energy can be converted into electrical energy, and the energy is recovered and stored in a high-voltage battery. At the time of starting and accelerating, electric energy is used again to achieve the purposes of fuel economy and solar power saving. According to calculations, the fuel-saving and gas-saving rate of the vehicle
More than 25%.
At the same time, as buses and buses need to be frequently started and parked, the new energy bus produced by Hengtong Bus Company has also installed the most advanced automatic start-stop equipment in China. This device automatically shuts off when the vehicle is parked. A gear and pedal are automatically activated, which reduces the labor intensity of the driver and reduces fuel consumption and gas consumption.
The market price of the car is about 850,000 yuan, which is about 300,000 yuan more expensive than an ordinary passenger car, but each car can get 250,000 yuan in state financial subsidies. Calculated, about two years, you can recover the investment in the car by saving gas.
Excavator Cylinder Piston Seals
Precautions for the installation of hydraulic cylinder piston seals in excavators
1. The sealing of the oil cylinder piston should use products of reliable quality to ensure good sealing performance.
2.Before installing the oil cylinder piston seal, the seal and sealing groove should be cleaned to ensure that the sealing surface is free of impurities.
3. When installing the seal, the correct installation sequence and direction should be carried out according to the drawing requirements to ensure the correct installation of the seal.
4.When installing the seal, special tools should be used to avoid using sharp tools and hard objects to damage the seal.
5. When installing the seal, attention should be paid to whether the seal groove is damaged or worn. If so, it should be replaced or repaired in a timely manner.
6. When installing the seal, an appropriate amount of lubricating oil should be applied to avoid friction damage to the seal during installation.
7.When installing the seal, it should be ensured that the compression of the sealing ring meets the requirements to avoid excessive or insufficient compression leading to seal failure.
8.After installing the seal, a sealing test should be conducted to ensure that the sealing performance meets the requirements.
Hydraulic cylinder piston seals, hydraulic cylinder seal, boom seal
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