Inflating and deflating valve for a wheel of a vehicle

• US 20050121125A1
• Filed: 01/22/2003
• Published: 06/09/2005
• Est. Priority Date: 01/29/2002
• Status: Abandoned Application

• Current Assignee: Syegon
• Original Assignee: Syegon
• Inventors: Maquaire, Michel
• Application Number:
  US10/502,711
• Publication Number:
  US 20050121125A1
• Time in Patent Office: Days
• US Class Current: 152/415
• CPC Class Codes: B60C 23/00318 on the wheels or the hubs
• CPC Class Codes: B60C 23/00354 Details of valves
• CPC Class Codes: B60C 23/00372 characterised by fluid diagrams

Abstract

The invention relates to a wheel valve (1) for the tyre of a vehicle, comprising a non-return valve (11), two half-bodies (3,4) defining a cavity and assembled with a membrane (6) inserted therebetween acting as a sealing joint between said half-bodies, said non-return valve comprising a tubular element (12) which is connected to the membrane and inside which the closing element (18) can move between a seat (17) and a base (20), said closing element being applied against the seat by means of the pressure prevailing in the tyre. The closing element (18) is subjected to the action of a magnetic field ensuring the maintainance thereof at the base (20) so that the valve can be kept open and that the tyre can deflate slowly. It is made of a steel ball (18) which cooperates with the seat (17) and which is defined by a ring (1) which is inserted into the tubular element (12). The magnetic field is produced with the aid of a magnetized element (22) disposed in the vicinity of the membrane (6).

Claims

1. A wheel valve (1) for a vehicle'"'"'s tyre of the type incorporating a non-return valve (11), two half-bodies (3, 4) together delimiting a cavity (5) and assembled with a membrane (6) placed between them to ensure sealing for said half-bodies, the non-return valve being constituted by a tubular element (12) integral with the membrane inside which the closing element (18) is able to move between a seat (17) and a base (20), said closing element being applied against the seat by the pressure in the tyre, wherein the closing element (18) is subjected to the action of a magnetic field ensuring it is held at the base (20) so as to hold said valve open and ensure the slow deflation of the tyre.

2. A wheel valve (1) according to claim 1, wherein the closing element is a steel ball (18) co-operating with the seat (17) delimited by a ring (16) inserted into the tubular element (12).

3. A wheel valve (1) according to claim 2, wherein the magnetic field is produced using a magnetised element (22) placed near to the membrane (6).

4. A wheel valve (1) according to claim 3, wherein the magnetised element (22) is in the form of a ring placed in a scallop in the ring (16).

5. A wheel valve (1) according to claim 4, wherein a grid (20) is placed between the ring (16) and the base (13) of the tubular element (12) so as to limit the ball'"'"'s displacement.

6. A remote control installation (30) for the slow deflation of a wheel tyre including a valve (1) according to claim 1, wherein it comprises a first electrovalve (43) placed in the supply circuit of said valve and three electrovalves (44, 45, 46) placed downstream of the first one.

7. A remote control installation according to claim 6, wherein the first electrovalve (43) is three-way.

8. A remote control installation according to claim 7, wherein compressed air pressure is applied to the ball (18) using the electrovalve (45) so as to move it away from the seat (17) thus making the tyre communicate with the external atmosphere via the electrovalve (46).