Water supply and drainage knowledge: mechanical principle of oil pump

2019-05-27 12:58

The oil absorption and pressure of fuel injection pump are completed by reciprocating motion of plunger in plunger sleeve. When the plunger is located in the lower position, the two oil holes in the plunger sleeve are opened, and the inner cavity of the plunger sleeve is connected with the oil passage in the pump body, and the fuel is quickly filled into the oil chamber. The plunger is raised when the CAM pushes against the roller body. Move upward from the beginning of the plunger until the oil hole is blocked by the upper end face of the plunger. During this time, as the plunger moves, the fuel is forced out of the chamber and into the oil passage. So this lift is called a prestroke. When the plunger blocks the oil hole, the oil pressing process begins. The plunger line, the oil pressure in the oil chamber increased sharply. When the pressure exceeds the spring spring of the oil valve and the upper oil pressure, the oil valve will be opened and the fuel oil will be pressed into the oil pipe and sent to the fuel injector.

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Well-known pump (gear oil pump, screw pump, Marine centrifugal pump, rotor pump, special gear pump industry is dependent on the casting industry, as the environmental pollution is more and more serious in recent years, fog constantly harassed us, as Beijing, tianjin and hebei integration is put forward, as the base and the gear casting city botou city, hebei province, is experiencing pain, scraping the bone healing poison "potow casting" card potow a big city. The history of more than 1300 years has made "famous casting city" famous, and foshan, wuxi and known as "China's three major casting base." In recent years, the small scale of enterprises, poor production environment, smoke emissions and other problems have made this city card dust. In order to achieve green casting, the local government is encouraging enterprises to invest in research and development, carry out transformation and upgrading, and promote the industry to move from the low end to the middle and high end, with only 60 enterprises remaining.
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Well-known pump (gear oil pump, screw pump, Marine centrifugal pump, rotor pump, special gear pump industry is dependent on the casting industry, as the environmental pollution is more and more serious in recent years, fog constantly harassed us, as Beijing, tianjin and hebei integration is put forward, as the base and the gear casting city botou city, hebei province, is experiencing pain, scraping the bone healing poison "potow casting" card potow a big city. The history of more than 1300 years has made "famous casting city" famous, and foshan, wuxi and known as "China's three major casting base." In recent years, the small scale of enterprises, poor production environment, smoke emissions and other problems have made this city card dust. In order to achieve green casting, the local government is encouraging enterprises to invest in research and development, carry out transformation and upgrading, and promote the industry to move from the low end to the middle and high end, with only 60 enterprises remaining.
Water supply and drainage knowledge: mechanical principle of oil pump
Water supply and drainage knowledge: mechanical principle of oil pump
The oil absorption and pressure of fuel injection pump are completed by reciprocating motion of plunger in plunger sleeve.
See more information
The oil absorption and pressure of fuel injection pump are completed by reciprocating motion of plunger in plunger sleeve.
The 16th China international machine tool exhibition 2019
The 16th China international machine tool exhibition 2019
The 16th China international machine tool exhibition 2019
See more information
The 16th China international machine tool exhibition 2019

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