Dosing device for fluids, especially a motor vehicle...

Details Dosing device for fluids, especially a motor vehicle... Dosing device for fluids, especially a motor vehicle...

2007-03-27

2007-03-27

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

C239S585300, C239S585400, C239S585100, C239S533100, C239S533200, C239S533120, C239S088000

Reexamination Certificate

active

11003265

ABSTRACT:
A dosing device comprises a housing (1) provided with an actuator, a dosing opening (8), a guiding shaft (6) which surrounds part of the valve needle (7) and forms a valve chamber (10) with the same, and a fluid chamber module (4) which is welded to the housing (1) in the form of a duct for guiding the valve needle (7) into the housing (9). The fluid chamber module (4) and the housing (1) are assembled along a separation surface (13) which is subjected to pressure by the dosing liquid and is formed almost only by axial cylinder wall surface parts (13) in order to reduce the pressure load on the weld seam (13).

REFERENCES:
patent: 5544816 (1996-08-01), Nally et al.
patent: 5921475 (1999-07-01), DeVriese et al.
patent: 5996911 (1999-12-01), Gesk et al.
patent: 6328232 (2001-12-01), Haltiner et al.
patent: 6494389 (2002-12-01), Reiter
patent: 6607143 (2003-08-01), Dallmeyer et al.
patent: 199 32 763 (2001-01-01), None
patent: 199 58 704 (2001-06-01), None

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