Patent ID: 9403432
Filing Date: 2016-08-02
CPC Classification: B60K,F16K,Y10T

Claim Text:
1. A valve for a fuel tank comprising a housing configured with a float chamber and a disk chamber being in flow communication through an intermediate flow path; said float chamber configured with: a valve inlet which is in fluid communication with the fuel tank; and a fluid inlet port into said intermediate flow path; said disk chamber configured with a fluid outlet port from said intermediate flow path and a valve outlet; the fluid inlet port is sealable by a sealing member of a float member axially displaceable within the float chamber to selectively facilitate the fluid flow to or from the float chamber via the valve, and the fluid outlet port is sealable by a pressure holding member axially displaceable within the disk chamber to selectively facilitate fluid flow into or out of said fluid outlet port; said pressure holding member is configured with an under pressure bleed valve displaceable between a sealed position wherein the under pressure bleed valve is sealed, and an open position wherein the under pressure bleed valve is open, providing passage of fluid; wherein the under pressure bleed valve is in a form of an aperture formed in the pressure holding member and a movable member displaceable within the aperture responsive to pressure differential and fluid flow rate between the open position, corresponding to the open position of the under pressure bleed valve, in which said aperture is open to facilitate the fluid flow through said aperture, and the sealed position, corresponding to the sealed position of the under pressure bleed valve, in which the aperture is sealed; wherein said movable member comprises a head portion and a main portion, the head portion being configured for sealing the aperture in said sealed position; and wherein in a regular state of the valve, the under pressure bleed valve is biased by gravity to the open position, in which said head portion projects away from the pressure holding member while concurrently the main portion is at least partially accommodated in the aperture.