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China hydraulic pump manufacturers, hydraulic pumps and motors, hydraulic pump parts, piston pump parts, hydraulic pump,  hydraulic spare parts, hydraulic piston pump, hydraulic vane pump, hydraulic gear pump, Hydraulic Motor,Pilot Pump, Charge Pump for Rexroth,Caterpillar,Vickers,Denison,Sauer,Kawasaki,Commercial,Linde,Parker,Liebherr,Komatsu,Eaton,Daikin,Kubota,Johndeer,Hitachi. T6C,T6D,T6E,45VQ,35VQ,25VQ,20VQ,V10,V20,Hydraulic Motor.

 

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High pressure pumps for direct injection engines, the fuel pressure by the fuel pump to 3--4bar, into the high pressure fuel pump, high-pressure fuel pump output pressure 120--200bar then computer-controlled engine pushed high pressure jet After pressurizing the fuel nozzle spray to these cylinders. By high-pressure direct fuel injection into the combustion chamber, making it completely atomized, achieve full combustion. It works by computer control, precise fuel is injected directly into the combustion chamber, so this is its advantage. Compared to conventional fuel injection system, direct injection system has more game thermodynamic effects. Because the gasoline direct injection system and driving conditions can be accurately controlled fuel injection quantity according to the engine needs, allowing plenty of air and almost complete combustion, thereby enhancing work efficiency. It is in the interests of users, while improving vehicle dynamics, improved fuel efficiency, thereby reducing fuel consumption and reduce carbon dioxide emissions, fuel economy and environmental protection to achieve a double effect I theoretically, direct injection combustion engine has two modes: points layer combustion and homogeneous combustion. In general, the normal running state, the engine is smooth running condition, stratified combustion state, then the state only around the spark plug preferably hydrocarbon mixture is ignited, this time around the fresh air as well as from the exhaust gas recirculation The gas forms a good heat protection, reduce the cylinder wall heat to enhance the thermal efficiency. Greatly reduces fuel consumption and exhaust emissions. Under acceleration running state, the engine operating conditions in a more intense, this time using the homogeneous combustion state, the combustion chamber filled with a homogeneous mixture of oil and gas, complete combustion to provide a strong impetus. Local high-pressure tubing joints abnormal vibration, resulting in oil spills, is quite complex. Due to the high pressure tubing connected to a high pressure pump and injection machine, belonging to the fuel injection system, a very important role.????Pressure tubing can withstand up to 150MPa high pressure, abnormal vibrations will cause huge losses, but also there is a big fire hazard. To troubleshoot, work injector needle when opening and closing so that the high-pressure tubing have a strong high-frequency vibration, which is one of the important causes of damage to high-pressure tubing. To do this, use the middle of the high pressure tubing clamp fixed to the adjacent bolts and other fasteners to reduce resonance. In addition to make a good addition to the quality of high-pressure tubing, should be properly fitted, the folder should be installed in the correct position, not missing equipment. If the high pressure fuel pump connector leakage, some of the emergency measures that we need to know are:????1, with the soft metal sheet or a plastic sheet cut into small round ring pad in the fitting recess, and then the pressure on the trumpet;????2, with fuse, thread tightening direction along the laps wound in the shoulder at the joint tighten the nut, the pad can be coated with soap or chewed bubble gum, chewing gum and other nut seat in the mouth. When the pressure in the hydraulic system in the rubber hose rupture between 25-8.0MPa can take stick and fill method: Wipe clean around the hose rupture; hose????Rupture painted "anaerobic" glue "epoxy" glue, "801" glue or "502" in a gum (glue length of about 2-3 times the length of the rupture site); with tape or canvas strip wound laminated type adhesive layer at 4-5 (each should be coated with glue); the wound tape at both ends of the draw canvas tied the knot; wait until solidification can be used after 15-20min. Transposition law: in the hydraulic system, the same passage of rubber hose whose specifications identical, but bear different oil. Many industries are now using to pump, as technology continues to improve, the pump is continually improving, and for the hydraulic pump, in fact, even if it works quickly, but for the use of life is still possible delay is no way to go , then the pump how to improve its service life it?Since the pump is part of a plurality of component parts together, for the components in the mix when both need to be filtered, and the inside of the piston pump for the hydraulic system as well as the pump seal, plus the use of the piston, These are the need to be processed, only handle these things, we can bring help to the hydraulic system, it can greatly improve the service life. Here we give you introduce a hydraulic pump efficiency and the use of methods to improve life, is filtered .Because the pump, because the pressure is to become the energy of its motion, when the hydraulic pressure up and down, it is necessary to carry out its surface and internal filter, to ensure piston pump running time will not be a problem, because the hydraulic pump There are tanks, it will be installed inside the oil, it will be consumed at run time to make these oil hydraulic system above the movement, which is necessary to ensure the cleanliness of oil, the last is to prevent dust from entering into the system, this It is very critical, because dust from entering the ring will lead to deterioration of the quality of their work time for the hydraulic problem arises, the question arises more, even if repaired, and will bring harm to the hydraulic itself, so these are For the hydraulic pump should be checked before doing every day.