Common rail systems for high-pressure fuel injection comprised primarily of high-pressure accumulators specially adapted for engine fuel rails, individual accumulators specially adapted for engine fuel rails, high pressure pumps for land vehicles, fuel injectors, back pressure valves and constant pressure valves, pressure sensors and fuel injection lines and return pipes; [ Pressure accumulator injection systems for diesel and heavy-oil engines comprised primarily of high-pressure accumulators specially adapted for engine fuel rails, individual accumulators specially adapted for engine fuel rails, high pressure pumps for land vehicles, fuel injectors, back pressure valves, constant pressure valves, suction throttle valves and purge valves, pressure sensors and fuel injection lines and return pipes; ] Injectors for engines consisting of nozzle needles and nozzle needle housings; [ Injection nozzles for pressure accumulator injection systems; Fuel injectors and parts therefor; Fuel injectors for dual-fuel engines and gas engines; Injection systems comprised of high pressure hydraulic pumps, high pressure pipes, fuel injection lines, safety valves, constant pressure valves and sensors for feeding water to engines; Injection systems for exhaust gas after-treatment comprised of high pressure fuel pumps for land vehicles, high pressure pipes, fuel injection lines, safety valves, constant pressure valves and sensors; ] Fuel injectors for motors; Fuel injectors for fuel injection installations [ and exhaust gas after-treatment systems for engines; ] Fuel injection pumps for conventional injection systems of engines; Conventional injection systems consisting of pump-line-nozzles; Filters for fuel injection installations [ and exhaust gas after-treatment systems; ] Fuel injection nozzle holders, being parts of machines or parts of motors and engines for machines; High-pressure fuel pumps for land vehicles and parts therefor; Fuel injection systems comprised primarily of engine injectors, piston plungers, piston guides, pump connection pieces, pump housing, tappet cups, main delivery valves, constant pressure valves, pump drives and parts therefor; [ Exhaust gas after-treatment systems comprised primarily of fuel pumps for land vehicles, fuel filters, pressure and temperature sensors, pressure lines and hoses for reducing agents, dosing units, dosing units with pressure and temperature sensors, constant pressure valves, return lines, dosing control modules, wiring harnesses, mono-nitrogen oxides sensors, catalytic converters and exhaust pipes; Pumps and valves for use in exhaust gas after-treatment systems, being parts of motors and engines for machines; High-pressure accumulators being parts of fuel injectors; Hydraulic controllers for internal combustion engines and fuel injection installations; Mechanical seals for fuel injection systems; Valves as machine components for injecting fuel into gas engines; ] Valves as machine components for fuel injection installations, in particular safety valves, circulation valves, constant flow regulators, control valves, pilot valves; Assembly machines for internal combustion engines and fuel injection systems

[ Testing, measuring and assembly apparatus for internal combustion engines and fuel injection systems for measuring and testing pressure, temperature, mass, force, length, movement, speed, flow rate, volume of flow, kinematic viscosity, injection rate, injection quantity, torque, current, voltage, electrical resistance and deformation; Software for controlling and regulating fuel injection systems ]