Inflation circuit, in particular for a tire mounted on a wheel, and corresponding wheel
First Claim
1. Inflation circuit comprising a compressed fluid source, a compressed fluid supply line connected to the source, a non-return valve interposed in the supply line between a reception chamber and the fluid source, a branch connected to the supply line between the non-return valve and the source, a diversion line connected to the branch, and a calibrated leak device connected to the diversion line in order to form a calibrated leak of compressed fluid from the branch, characterized in that the non-return valve comprises a free differential valve.
2 Assignments
0 Petitions
Accused Products
Abstract
An automatic inflation and deflation circuit for a tube (3) is produced with a single compressed fluid supply conduit (5). The inflation results from subjecting a non-return valve (VA) in series on the conduit to excess pressure. Deflation is provided by subjecting the non-return valve for a brief moment to excess pressure and then in producing (EVDG) a calibrated leak (11) in the conduit. Evidence is provided that the pressure in the conduit is such that it enables to maintain the non-return valve open, although the pressure on the side of the tube is higher than the pressure in the conduit during deflation.
27 Citations
47 Claims
- 1. Inflation circuit comprising a compressed fluid source, a compressed fluid supply line connected to the source, a non-return valve interposed in the supply line between a reception chamber and the fluid source, a branch connected to the supply line between the non-return valve and the source, a diversion line connected to the branch, and a calibrated leak device connected to the diversion line in order to form a calibrated leak of compressed fluid from the branch, characterized in that the non-return valve comprises a free differential valve.
- 17. Inflation circuit comprising a compressed fluid source, a compressed fluid supply line connected to the source, a non-return valve interposed in the supply line between a reception chamber and the fluid source, a branch connected to the supply line between the non-return valve and the source, a diversion line connected to the branch, and a calibrated leak device connected to the diversion line in order to form a calibrated leak of compressed fluid from the branch, wherein the reception chamber is disposed in a wheel intended to be equipped with a tire, and in that it comprises a loss of head device (78) interposed between the compressed fluid reception chamber of the wheel and the valve.
- 31. Inflation circuit of a wheel intended to be equipped with a tire, the circuit comprising an interposed non-return valve and a hub intended to receive the wheel, the hub having an axis of rotation, wherein it comprises as a non-return valve a two-way valve mounted in the axis of rotation of the hub.
Specification