FISCHEER produces nozzles alternative to the original, the most sophisticated component of the entire injection system of diesel engines, whose function is to inject fuel into the combustion chamber in the form of atomized droplets with diameters ranging from 20 to 100 microns. Our line includes more than 1250 types of nozzles for diesel applications including cars, pickups, vans, trucks, buses, tractors, industrial vehicles and generators. We produce pintle nozzles, for indirect injection engines, and hole nozzles, for direct injection engines. A wide and growing range, which includes nozzles for highly innovative systems such as: Common Rail UIS (Unit Injector System), developed in 1994, combining the injection pump and the injector nozzle in a single component. UPS (Unit Pump System) . EUI (Electronic Unit Injector) . Common Rail systems providing a very high pressure fuel within a single pipe or common rail pipes that feeds the injectors controlled electronically. UIS (Unit Injector System), is a diesel injection system developed in 1994, combining the injection pump and the injector nozzle in a single component. UPS (Unit Pump System), system was introduced in 1995. The feature of the UPS is that each engine cylinder has a unit pump of its own. EUI (Electronic Unit Injector) system was developed in the early 1990s, for use in large diesel engines, to meet the challenge posed by increasingly stringent emissions legislation. Two variations are EUP system (Electronic Unit Pump) and HEUI system (Hydraulic Electronic Unit Injector).
Plungers & Elements
FISCHEER distributes a wide range of pump elements.
The element is a component of the inline diesel pump and its function is to meter and deliver the metered fuel to the injectors. Element consists of two components, barrels and plungers. The plunger is matched to its barrel with high precision and grants hydraulic withhold at all pressures, even very high pressures and low engine revolutions. The plunger is precisely fitted to the barrel with very small clearance to form a perfect sealing. They must therefore be replaced as a set (barrel and plunger).
Valves, together with pump elements, are a component of the inline pump.
Delivery valves purpose is to deliver fuel to the injectors at the exact needed time and in the
quantity requested by the engine load. The delivery valve is made of a body,
manufactured with a special type of steel, and a needle, in which a few longitudinal grooves are visible.
These grooves allow the fuel to pass through.
The fuel feed pump used for the diesel engine is similar to that of a fuel lift pump for the petrol engine. It delivers the fuel from the tank to the injection pump continuously and at a reasonable pressure. It is necessary because there is possibility of formation of vapour bubbles and subsequently cavitation in the pump due to suction of the rapidly moving plungers of the injection pump. This would lead to uncontrolled variations in the rate of delivery of fuel to the cylinders, causing rough running and possibly even mechanical damage to the engine. Also cavitation could cause mechanical damage in the injection pump. Generally delivery pressures of between about 29 and 98 kPa adequate for preventing vapour formation on the suction side of in-line type injection pumps. This pressure also ensures adequate supply of fuel for filling the plunger elements at high speeds in a rotary or distribution pumps.
Nozzle holders effectively influence the fuel mixture and combustion process.
High quality nozzle holders assure the best engine performance and protect the environment.
FISCHEER produces nozzle holders under highest quality requirements following leading engine manufacturers.
Rotor Heads for Fuel Injection Pumps (4-cylinder and 6-cylinder VE pumps) are available in nearly 60 different numbers with 10 mm, 11 mm, 12 mm and custom 14 mm rotor head for high performance applications.