FIELD: motors and pumps.
SUBSTANCE: invention can be used in supply system of internal-combustion engine. The fuel injector has housing (2),opening outside needle gate (3) located in cavity (4) available in the housing (2), filled with fuel and being under pressure. Fuel is supplied under pressure to the cavity (4). Return element (20) returns the needle gate (3) to the initial position. The solenoid drive (6) is located in cavity (9) intended for its location and is used for the needle gate (3) activation. Membrane (13) is located in the cavity (9) for the drive installation and tightly separates it to first fuel filled chamber (5) and second fuel-free chamber (18), and divides the needle gate (3) to part (3a) located from injection side and to part (3b) from drive side. Part (3a) has pressure equalising piston (10) separating the pressure cavity (4) from the first fuel filled chamber (5) of cavity (9) for drive (6) installation. The drive (6) is located in the second fuel-free chamber (18).
EFFECT: design simplification.
9 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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