German prominent pump prominent model prominent price

prominent pump is a typical positive displacement hydraulic machine, driven by a prime mover, converting input mechanical energy into pressure energy of the liquid, and then inputting it into the system in the form of pressure and flow. It is the power source of the hydraulic system. Since it can transport liquids under high pressure, it is widely used in various industries in industrial production and daily life, such as water conservancy, construction, and energy. In addition, it is also widely used in shipbuilding, oil extraction, and loaders.

prominent pump usage method

For plunger pump cylinders with installed copper sleeves, installation can be performed by replacing the copper sleeves. First, trim the outer diameter of a set of plunger rods to a uniform size, and then polish the outer diameter with sandpaper of 1000# or higher. Three methods for installing copper sleeves in the cylinder block: a) Heating the cylinder block for hot fitting or cryogenic compression of the copper sleeve for interference fit; b) Adhesive assembly using Loctite; this method requires grooves on the outer diameter surface of the copper sleeve; c) Tapping the cylinder bore, machining threads on the outer diameter of the copper sleeve, applying Loctite, and screwing it in for assembly. Installation methods for cylinder blocks and copper sleeves combined by sintering are as follows: a) Use a grinding rod to manually or mechanically grind and repair the cylinder bore; b) Use a coordinate boring machine to re-bore the cylinder block hole; c) Use a reamer to repair the cylinder block hole. Methods using "surface engineering technology" are as follows: a) Electroplating technology: Plate a layer of hard chrome on the plunger surface; b) Electro-brush plating technology: Brush plate wear-resistant materials on the plunger surface; c) Thermal spraying, arc spraying, or electric spraying: Spray high-carbon martensitic wear-resistant materials; d) Laser cladding: Clad high-hardness wear-resistant alloy powder on the plunger surface. e) For cylinder blocks without copper sleeves, the cylinder material is mostly ductile iron, preparing an amorphous film or coating on the inner wall of the cylinder block. Because of this special substance on the inner wall of the cylinder bore, a hard-to-hard friction pair can be formed.

prominent pump operating mode

During operation, under the action of the cam on the fuel injection pump camshaft and the plunger spring, the plunger is forced to perform reciprocating up-and-down motion, thereby completing the fuel pumping task. The fuel pumping process can be divided into the following three stages. Conclusion: Through the above discussion, the following conclusions are drawn: (1) The total stroke L of the plunger reciprocating motion is constant, determined by the cam lift. (2) The fuel supply volume per plunger cycle depends on the fuel supply stroke, which is variable and not controlled by the camshaft. (3) The start moment of fuel supply does not change with the variation of the fuel supply stroke. (4) Rotating the plunger can change the end moment of fuel supply, thereby changing the fuel supply volume. 3. Domestic series plunger-type fuel injection pumps: Domestic series plunger pumps mainly include A, B, P, Z, and Series I, II, III. Serialization is based on different fuel supply requirements according to the single-cylinder power range of diesel engines, using plunger stroke, pump cylinder center distance, and structural type as the basis, combined with plunger diameters of different sizes to form several types of fuel injection pumps with unequal fuel supply volumes within one working cycle, to meet the needs of various diesel engines. The working principle and structural type of domestic series fuel injection pumps are basically the same. Taking the A type pump as an example, the structure and working principle of the plunger-type fuel injection pump are introduced. The plunger pump consists of four main parts: pumping element, fuel quantity adjustment mechanism, transmission mechanism, and pump body. It features microprocessor intelligent control, LCD display, and communication with computers, characterized by stable working pressure, low pulsation, and convenient operation. It is widely used in biochemistry, pharmaceutical, chemical, environmental protection, and other industries, meeting the requirements of these industries for continuous constant-pressure and constant-flow liquid transportation.

prominent pump maintenance

(1) Check the plunger for scratches and corrosion; replace with new parts if necessary. (2) Check the mating condition of the plunger pair. Insert the plunger end into the plunger sleeve, tilt it approximately 60°; if the plunger can slowly slide down under its own weight, the mating is good. (3) Check the sealing of the plunger pair. Hold the plunger sleeve with one hand, block the plunger top and the side oil inlet with two fingers. Pull out the plunger with the other hand; if a significant suction force is felt and the plunger immediately retracts to its original position upon release, the plunger pair sealing is good; otherwise, replace the plunger pair. (4) Check whether the decompression band of the delivery valve pair is worn with steps or scratches; replace if necessary. (5) Check the mating condition of the delivery valve pair. Block the lower hole of the delivery valve with one finger, gently press the delivery valve downward with another finger; when the finger leaves the upper end of the delivery valve, if it automatically springs back to its original position, the delivery valve pair sealing is good; otherwise, replace the delivery valve pair. (6) Check the tappet body. The standard clearance between the fuel injection pump body and the tappet body is 0～0.03mm; if it exceeds 0.2mm, replace the parts. (7) Check the clearance between the plunger flange and the groove of the control sleeve, which should be 0.02～0.08mm; if it exceeds 0.12mm, the control sleeve must be replaced.

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