Description
Product Overview
The rotor disc is the core flow distribution component of the VE type mechanical fuel injection pump. It evenly distributes the high-pressure fuel to each cylinder oil circuit through the oil grooves on the disc surface, and is controlled by springs to maintain the internal oil pressure balance. After long-term high-pressure reciprocating operation, the disc surface may wear, the seals may age, and the springs may become fatigued and weak. This can lead to deviations in the fuel supply to each cylinder, unstable oil pressure, and overall issues such as uneven fuel supply and unstable pressure. The entire set includes a housing, seals, and pressure regulating springs. This allows for a one-time replacement to complete the core repair of the fuel pump, suitable for light trucks, agricultural machinery, and small construction machinery for distribution-type diesel fuel injection pump maintenance and major overhauls.
Unique core features of the single product
Aluminum alloy integral flange distribution housing, lightweight and high-strength
The entire casting is made of aluminum alloy, with standard flange installation holes reserved around the periphery, and it fits tightly with the end face of the pump body; the thickened side walls of the housing design prevent deformation from high-pressure fuel impact over a long period, and the lightweight structure reduces the overall load of the fuel pump.
Precisely formed分流 oil grooves on the disc surface， uniform fuel supply without deviation
The disc surface is machined integrally to form symmetrical分流 oil channels， with smooth inner walls and no burrs on the oil channels， ensuring smooth fuel flow distribution and low deviation in fuel supply to each cylinder， resulting in stable engine operation without single-cylinder lack of power or vibration.
Integrated one-piece oil-resistant sealing rubber ring embedded， preventing leakage at the end face
A complete circle of black rubber sealing gasket is pre-installed on the top surface of the housing， and after the flange is tightened， it completely fills the gap between the housing and the end face of the pump body， blocking the leakage of high-pressure fuel from the joint surface and preventing oil leakage and accumulation in the pump body.
Multiple specifications of precision pressure regulating springs are provided， with uniform spring wire diameters and heat treatment for anti-fatigue， and they do not deform or become weak under long-term compression， precisely maintaining the rated working oil pressure inside the fuel pump and ensuring stable fuel injection pressure.
High-precision coaxial center positioning holes， no offset during installation
The center main shaft positioning holes are mirror-polished processed， with precise clearance with the fuel pump main shaft， ensuring no eccentric wear during rotation and reducing internal noise and supply lag in the fuel pump. Applicable scenarios
Suitable for medium and small-sized VE distributed diesel fuel injection pumps, covering light-duty freight trucks, agricultural tractors, small wheeled loaders, mobile diesel generators. It is applicable to diesel equipment supply systems for field and construction sites under high and low temperatures, with multiple dust particles, and for medium-load diesel equipment. It is suitable for major overhauls of fuel supply systems.
Product basic parameters
Product name: Distribution Pump Rotor Distribution Disk Maintenance Kit
Part number: 28303795
Main material: Cast aluminum alloy housing, oil-resistant rubber sealing gasket, heat-treated alloy steel pressure regulating spring
Structural features: Four-hole flange-mounted housing, precise分流 oil groove disk surface， integrated ring-shaped sealing gasket， matching multiple pressure regulating springs
Application conditions： Continuous light / medium-heavy load， alternation of engine compartment high and low temperatures， outdoor multi-dust mechanical diesel distribution pumps
Product status： New precision processed kit， completed with uniform flow distribution， end face sealingity， and spring pressure endurance factory inspection
Packaging： Independent compartment shock-proof packaging， housing and springs are stored separately in different areas to avoid spring deformation and disc surface scratching， suitable for cross-border small package logistics.
