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Diaphragm check valve

A flexible film and check valve technology, applied to the structure of the check valve, the "seat" part of the check valve, and the field of gaseous fluids, can solve problems such as tearing and film rupture, and achieve mechanical pressure enhancement, tearing The effect of reducing the risk of cracking and improving sealing

Active Publication Date: 2014-10-22
AKWEL SA
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, in the case where the membrane has to withstand a certain pressure on the reverse of the valve's pass-through prohibition, for example, during start-up of the turbocharger, there is no rounding causing serious damage to the membrane. local stresses, there is a risk that the membrane will rupture or even tear

Method used

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Examples

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Embodiment Construction

[0063] refer to figure 1 , 3 , 4, 6 and 7, non-return valves, designated as a whole with reference 1 and hereinafter simply referred to as "valve", comprise a hollow body consisting of two connecting parts 2 and 3 arranged along the same longitudinal axis A. The first part 2 of the body extends through an inlet end part 4 for fluid, while the second part 3 of the body extends through an outlet end part 5 for fluid.

[0064] The valve seat 6 , here incorporated into the first part 2 of said body, extends transversely to the longitudinal axis A. As shown in FIG. A flexible membrane 7 of circular shape, mounted inside said body, opposite one surface of the valve seat 6, the membrane 7 is here fixed by its centre. In particular, as figure 1 , 3 Diaphragm 7 is held on a central pin 8 integral with valve seat 6, as shown in FIGS.

[0065] The valve seat 6 is pierced by a plurality of passage ports 9 , all arranged around the axis A, in particular around the central pin 8 . Por...

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Abstract

The invention relates to a valve including a body, a seat (6), and a flexible diaphragm capable of being urged against the seat (6) while sealing the passage openings (9) of said seat. Each of the passage openings (9) has an oblong shape and is arranged with the largest dimensions thereof oriented in radial directions of the seat (6). The invention can be used as a check valve or flow control valve for gaseous fluids, in particular in the automotive field.

Description

technical field [0001] The present invention relates generally to the technical field of check valves or flow control valves, intended to be inserted into a circuit through which a fluid, in particular a gaseous fluid, flows. More particularly, the present invention relates to the construction of a check valve of the flexible membrane type, and more particularly to the "seat" portion of such a check valve on which the membrane must be located in the closed position of the check valve , prevent the passage of fluid and more precisely prevent the backflow of fluid. The subject of the invention is a non-return valve with a flexible membrane, which finds application in particular in various systems in the automotive sector which operate with low air pressure. Background technique [0002] In motor vehicles there are various systems that use low air pressure to ensure functions related to heat engine operation or driving and vehicle safety: deformable turbocharger, exhaust gas r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/14F16K27/02
CPCF16K27/0209F16K15/148F16K27/0236Y10T137/789F16K15/144
Inventor 马尔科·马蒂诺·斯帕内韦洛
Owner AKWEL SA
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