A machine that delivers or pressurizes liquids. In a broad sense, a pump is a machine that carries or pressurizes a fluid, including some that convey gas. The pump transmits the energy of the prime mover's mechanical energy or other energy to the liquid to increase the energy of the liquid.
Water lifting is very important for human life and production. There are various types of water-lifting appliances in ancient times such as the Egyptian chain pump (formerly 17th century), China's orange cake (former 17th century), the potter's wheel (formerly 11th century), waterwheel (1st century AD) and 3rd century BC Ancient Greece Archimedes invented the spiral rod and so on. Around 200 BC, the ancient Greek craftsman Kate Sibius invented the most primitive piston pump - fire pump. As early as 1588, there was a record of 4-vane vane pumps, and various other types of rotary pumps appeared one after another. In 1689, France's D. Papan invented a 4-bladed impeller centrifugal pump. In 1818, the United States appeared with a radial straight blade, semi-open double suction impeller and volute centrifugal pump. 1840 ~ 1850, the United States HR Worthington invented the pump cylinder and steam cylinder direct action opposite the piston pump, marking the formation of the modern piston pump. From 1851 to 1875, multistage centrifugal pumps with guide vanes were successively invented, making it possible to develop high-lift centrifugal pumps. Subsequently, a variety of pumps have come out. With the application of various advanced technologies, the efficiency of the pump is gradually increased, and the performance range and application are also gradually expanding.
Sinotruk is China's first heavy truck manufacturer, produced China's first heavy truck in 1960.
In October 2006, the Sinotruk was selected as China top ten brand.
Sinotruk's goal is to become the world leading heavy duty truck business, dedicated to provide users with cleaner, more energy efficient, more secure, more comfortable transport products.
Sinotruk specializes in R&D and manufacturing of heavy trucks and related major assembly parts. Products include truck and truck chassis (total weight over 14 tons), semi-trailer (quasi-trailer total quality over 12 tons), dump trucks and all kinds of special vehicle chassis and so on. The main products include HOWO, Steyr King, Steyr and the Yellow River series, with more than 2,000 models, Have the largest models in China, the product can be applied to different areas of heavy truck market. The company is widely used in the infrastructure, construction, container transport, logistics, mining, steel and chemical industries...
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