VALVE FOR DOSING THE FLUID MEDIUM Russian patent published in 2017 - IPC F02M51/06 F02M61/08 F02M61/20 

FIELD: engines and pumps.

SUBSTANCE: provides a valve for fluid dispensing, particularly fluid having arranged in the fluid stream, surrounded by the seat (12) dispensing opening (11) controlling the metering orifice (11) the needle (13) from the locking head (131) which for opening and closing of the metering opening (11) interacts with its seat (12), the piezoelectric actuator (14) which acts on the needle (13) to open the dispensing opening (11), and a resilient return element (15) which acts on the needle ( 13) our effort to close the dispensing hole (11). For minimizing the required stroke of the piezoelectric actuator (14) when required during the locking head (131) of the needle (13) is located from its seat (18) annexes force return member (15) is arranged on the carrier a locking head (131) after the needle (13) or near it.

EFFECT: minimization of the required stroke of the piezoelectric actuator.

10 cl, 2 dwg, 1tbl