Loading patent…
AssigneeRobert Bosch GmbH
InventorsMarkus Schmitzberger, Helmut Rammerstorfer, Martin Hainberger
Estimating the term…
The invention relates to a method for producing a metering valve (1) for a fluid, in particular for a liquid and/or gaseous fuel, comprising a preferably plate-shaped valve seat element (2) having at least one throughflow opening (3) for the liquid and/or gaseous fuel, a lift-movable valve disk (4) that sealingly interacts with the valve seat element (2) for releasing and closing the at least one throughflow opening (3), and a stroke stop element (5) having an annular stroke stop surface (6) for limiting the stroke of the valve disk (4). According to the invention, the stroke stop element (5) is axially pretensioned in the direction of a stroke adjustment ring (7) surrounding the valve disk (4). In order to finely adjust the stroke of the valve disk (4), the axial pretensioning force is altered, whereby the stroke stop element (5) is deformed. The invention further relates to a metering valve (1) for a fluid.
A method for producing a metering valve (1) for a fluid, comprising a valve seat element (2) with at least one throughflow opening (3) for the fluid, a valve head (4) which can be moved with a reciprocating movement and interacts in a sealing manner with the valve seat element (2) for releasing and closing the at least one throughflow opening (3), and a stroke stop element (5) with an annular stroke stop face (6) which comes into contact with the valve head (4) for limiting a stroke of the valve head (4), the method comprising prestressing the stroke stop element (5) with an axial prestressing force in a direction of a stroke setting ring (7) which surrounds the valve head (4), and changing the axial prestressing force for precision setting of the stroke of the valve head (4), the stroke stop element (5) being deformed, wherein the stroke stop element (5) is prestressed axially in the direction of the stroke setting ring (7) by a spring force of a spring (8), wherein an electromagnet (11) for actuating the metering valve (1) is arranged between the spring (8) and the stroke stop element (5), and wherein the electromagnet (11) transmits the spring force of the spring (8) to the stroke stop element (5).
A metering valve (1) for a fluid, comprising a valve seat element (2) with at least one throughflow opening (3) for the fluid, a valve head (4) which can be moved with a reciprocating movement and interacts in a sealing manner with the valve seat element (2) for releasing and closing the at least one throughflow opening (3), and a stroke stop element (5) with an annular stroke stop face (6) which is configured to come into contact with the valve head (4) for limiting the stroke of the valve head (4), characterized in that the stroke stop element (5) is prestressed, by a spring force of a spring (8), axially in the direction of a stroke setting ring (7) which surrounds the valve head (4), and the axial prestressing force can be changed, with the result that a precision setting of the stroke of the valve head (4) can be brought about via a deformation of the stroke stop element (5), wherein the spring (8) is supported axially on the stroke stop element (5) via an electromagnet (11) for actuating the metering valve (1), wherein the electromagnet (11) is arranged between the spring (8) and the stroke stop element (5) and is configured to transmit the spring force of the spring (8) to the stroke stop element (5).
Dependencies are inferred from the claim text.