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Diaphragm spring valve

A diaphragm spring and spring arm technology, applied in the field of diaphragm spring valves, can solve the problems of slow reset, long duration, and difficult application of diaphragm springs, achieve reliable closing, improve valve sealing, and improve valve dynamics performance effect

Active Publication Date: 2019-10-25
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, at the end of the closing process, the return of the diaphragm spring becomes slower and slower due to the continuously decreasing restoring force, so that the closing process lasts longer
This makes the application of known diaphragm springs in dynamic and / or partially pressureless systems very difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Next refer to Figures 1 to 6 The diaphragm spring valve 1 according to a first preferred embodiment of the present invention is explained in detail.

[0026] as from figure 1 with 2 It can be clearly seen that the diaphragm spring valve 1 according to the invention comprises a valve carrier 2 with a stepped through-opening 20 and a diaphragm spring in the form of a deformable diaphragm spring 4 with an inner circular sealing part 30, An outer annular support portion 31 with an outer diameter D1 and three spring arms 42 .

[0027] Deformed diaphragm spring 4 is to be understood as a diaphragm spring whose inner sealing part 30 and The outer support parts 31 are parallel to each other and spaced apart from each other in the mechanically unloaded state, wherein the spring arms 42 are plastically deformed. This from Figures 3 to 6 It can be clearly seen in .

[0028] A spring arm 42 connects the inner sealing part 30 with the outer support part 31 , wherein the spri...

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PUM

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Abstract

The present invention relates to a diaphragm spring valve which comprises a valve carrier (2) with a through-opening (20), a diaphragm spring (3; 4) with an inner sealing part (30), an outer supporting part (31) and a plurality of spring arms (32; 42) which connect the inner sealing part (30) to the outer supporting part (31), wherein the diaphragm spring (3; 4) is arranged on the valve carrier (2), and wherein the inner sealing part (30) closes or opens the through-opening (20) in the valve carrier, characterized in that, with the diaphragm spring valve in the closed state, the diaphragm spring (3; 4) is configured, by means of the plurality of the spring arms (32; 42), to exert a prestress on the inner sealing part (30) in order to close the through-opening (20). The present invention further relates to a diaphragm spring which is designed as a deformation diaphragm spring with plastically deformed spring arms (42).

Description

technical field [0001] The invention relates to a diaphragm spring valve which can be used, for example, as an inlet valve in a fuel pump, and to a diaphragm spring which can be used in a diaphragm spring valve. Background technique [0002] One such diaphragm spring is known, for example, from GB 2478876B. Such a diaphragm spring valve has a diaphragm spring and a valve carrier with a valve seat and a through-opening. A diaphragm spring has an inner sealing part, an outer supporting part and a plurality of spring arms connecting the inner sealing part and the outer supporting part, and is fastened on the valve carrier. When the medium pressurizes against the diaphragm spring, the diaphragm spring is lifted from the valve seat and the medium can flow through the relief cross section of the diaphragm spring. Corresponding to the deflection, a restoring force is generated in the spring arm of the diaphragm spring, which restores the diaphragm spring to its initial position. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/14F02M51/04F02M59/46F04B53/10
CPCF02M51/04F02M59/462F02M59/464F02M2200/26F04B53/102F16K15/144
Inventor S·芙洛F·尼切A·普利施W·莫伊雷尔
Owner ROBERT BOSCH GMBH