Valve for controlling fluids

Details Valve for controlling fluids Valve for controlling fluids

1998-10-19

2000-11-07

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Fluid link or column actuator

2391022, 2395332, 2395334, 2395338, 2395339, 239584, 251 11, 25112906, 123472, 310314, F16K 3102, F02M 4500, F02M 5106

Patent

active

061424439

ABSTRACT:
A valve for controlling fluids which, for its actuation, is provided with a fluid-filled coupling chamber which can be brought to high pressure by virtue of the fact that the valve is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member and it is used for force and path transmission. To compensate for a leakage in the coupling chamber, a filling valve is provided, which is disposed on the piston that actuates the valve member and is switched by this piston with each stroke of the device. In this manner, the coupling chamber contains a largely constant volume and can also compensate for slight fill level changes caused by temperature differences. The valve is designated for use in fuel injection devices for internal combustion engines of motor vehicles.

REFERENCES:
patent: 4022166 (1977-05-01), Bart
patent: 4501406 (1985-02-01), Walther et al.
patent: 5209453 (1993-05-01), Aota et al.
patent: 5280773 (1994-01-01), Henkel
patent: 5810255 (1998-09-01), Itoh et al.
patent: 5979803 (1999-11-01), Peters et al.

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