초록 ▼

A filler valve for a gas tank, comprising a valve body to be mounted in the wall of the tank, to the upper end of which body a filler hose can be connected, and in the wall of which valve body outlet ports are provided, two shut-off valves being provided in the valve body, between which shut-off val

A filler valve for a gas tank, comprising a valve body to be mounted in the wall of the tank, to the upper end of which body a filler hose can be connected, and in the wall of which valve body outlet ports are provided, two shut-off valves being provided in the valve body, between which shut-off valves a passage is present and furthermore the space between the two valve members is in open communication with the space under the valve members, said latter space comprising a passage opening controlled by a float, and in which furthermore the valves are constructed so as to be slidable one within the other and cooperate with one and the same seat.

대표청구항 ▼

A filler valve for a gas tank comprising a generally tubular body having an interior chamber adapted to receive therein fluid under pressure through an inlet, means defining first and second spaced valve seats past which fluid is adapted to flow from said chamber, first and second valve means for se

A filler valve for a gas tank comprising a generally tubular body having an interior chamber adapted to receive therein fluid under pressure through an inlet, means defining first and second spaced valve seats past which fluid is adapted to flow from said chamber, first and second valve means for seating upon and being unseated relative to said respective first and second valve seats for controlling the flow of fluid through said chamber past said second valve seat, first and second biasing means for normally biasing said first and second valve means against said first and second valve seats, respectively, third valve means for seating upon and being unseated relative to a third valve seat, first and second fluid chambers set-off at least in part by and between said first and third valve means and said second and third valve means, said first and second biasing means being disposed generally on opposite sides of said third valve means, means defining a first fluid passage for placing said first and second chamber means in fluid communication, additional passage means for placing said first chamber means in fluid communication with the exterior of said tubular body, said first valve means being adapted to be unseated from said first valve seat in response to inlet fluid pressure to supply fluid to said second chamber through said first fluid passage to maintain said second valve means seated upon said second valve seat, said third valve means being unseated from said third valve seat upon the opening of said second valve means resulting in the flow of fluid past said first valve seat into said first chamber means and through said first fluid passage into said second chamber means, and means for automatically controlling the operation of said second valve means by seating the latter upon said second valve seat under the influence of a first predetermined fluid level being reached in an associated tank at balanced pressure on opposite sides of said first and third valve means whereby at least said first valve means is seated upon said first valve seat by said first biasing means and unseating the second valve means from said second valve seat under the influence of a second predetermined fluid level being reached which is less than said first predetermined fluid level in the associated tank at unbalanced pressure on opposite sides of said first valve means to unseat said first and third valve means relative to said first and third valve seats. The filler valve as defined in claim 1 including third biasing means in said second chamber for normally biasing said third valve means in a direction toward said first valve means, and said second and third biasing means are spring disposed in generally coaxial relationship.