Piezoelectric control valve for controlling fuel injection valve

Details Piezoelectric control valve for controlling fuel injection valve Piezoelectric control valve for controlling fuel injection valve

1988-02-16

1989-03-21

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

Plunger interconnected or mounted valve

239 93, 239124, 123446, 310328, F02M 4700

Patent

active

048136018

ABSTRACT:
A piezoelectric control valve, for motor fuel injection via an injection valve, includes a hydraulic play-compensation element inside the control valve on the one side, which automatically compensates for possible changes in length of the reference system as a result of piezoceramic setting actions in the piezoelectric actuator so that, at the same working stroke of the piezoelectric actuator, an identical stroke at the valve is also always ensured. A hydraulic stroke transmission inside the control valve on the other side, provide a valve stroke corresponding to a multiple of the working stroke.

REFERENCES:
patent: 1341911 (1920-06-01), Keller
patent: 3501099 (1970-03-01), Benson
patent: 4579283 (1986-04-01), Igashira et al.

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