Purpose
TKVD is designed to accumulate fuel under high pressure developed by high pressure fuel pump, distribute fuel to injectors and maintain the required fuel pressure using a pressure sensor (5) and valve (6), regulating pressure, The pressure regulation process is controlled by the engine control unit. For the OM611 engine, the approximate volume of the TKVD is 35 cm3.
Design
VN 2.125
1. TKVD
2. Inlet pipe
3. Outlet pipes to nozzles
4. Fuel return pipe to the tank
5. Pressure sensor in TKVD
6. Pressure control valve in TKVD (Y74)
Tightening torques for threaded connections
Nut fastening the high-pressure pipeline to the high-pressure pump and TKVD - 22 Nm.
Screw for fastening the TKVD to the cylinder head - 14 Nm.