Fluid dosing device with a throttle point

Details Fluid dosing device with a throttle point Fluid dosing device with a throttle point

2006-05-16

2006-05-16

Ganey, Steven J. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S453000, C239S533100, C239S533900, C239S584000, C251S335300, C251S129170

Reexamination Certificate

active

07044407

ABSTRACT:
A fluid dosing device for a pressurized liquid is disclosed, which comprises a chamber (35) which is supplied with pressurized liquid by means of a liquid supply line (17, 19); a valve needle (9) which is guided through the chamber (35), the first end section of said valve needle being able to be lifted and the second end section thereof forming a valve in conjunction with a valve seat disposed on the housing (3). Metal bellows (33) are provided as a leadthrough element for the first end section of the valve needle (9). The metal bellows seal the chamber in said region in a tight manner. A throttle point (37, 39) is provided between the valve needle (9) and the inner wall of the chamber between the metal bellows (33) and the mouth (18) of the liquid supply line (17) leading into the chamber.

REFERENCES:
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patent: 3282512 (1966-11-01), Bluhm et al.
patent: 4803393 (1989-02-01), Takahashi
patent: 5205492 (1993-04-01), Khinchuk
patent: 6311950 (2001-11-01), Kappel et al.
patent: 6676030 (2004-01-01), Lorraine et al.
patent: DD 81 262 (1970-03-01), None
patent: 199 58 704 (1999-12-01), None
patent: 100 07 733 (2000-02-01), None
patent: 1 046 809 (2000-04-01), None

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