High pressure gas tank cooling by ejector pump circulation
OwnerKiyoshi Handainventor
Life of this patent
Estimating the term…
Abstract
Apparatus wherein the compression heat of refueling of a high pressure storage tank is evacuated from the interior of the tank in which a gas circulating within the tank passes through an ejector pump powered by the mechanical energy of the refueling gas as the gas traverses from the high pressure refuel depot to the storage tank and the circulating gas absorbs the refueling heat and carries the heat to a cooling system before the gas is introduced into the tank for storage.
Claims20
A storage tank for a high pressure gas wherein the tank is refueled under high pressure at a refueling depot via a refilling line directing gas flow from the depot to the tank, wherein 1) a heat absorbent media circulates within the tank and absorbs the heat of compression resulting from the refueling of the tank, 2) the heat absorbed is conducted in a circulation system to a heat exchanger external to the tank whereby the absorbed heat is exhausted from the tank to an environment external to the tank, and 3) an ejector pump is interposed between the high pressure gas depot refilling line and the tank to power the circulation system.
A cooling system for a high pressure gas storage tank wherein the tank is refueled under high pressure comprising a loop defined by 1) a gas flow circuit within the tank that absorbs the heat of compression resulting from the refueling of the storage tank, 2) a radiator external to the tank whereby the heat absorbed in the loop is exhausted from the tank to an environment external to the tank, and 3) a pressure powered ejector pump producing a Venturi jet interposed between a high pressure gas depot refilling line and the tank, the ejector pump having a suction inlet and an outlet to the storage tank powering the gas flow circuit.
A cooling system for a high pressure gas storage tank wherein at least one tank is refueled under high pressure comprising a loop defined by 1) a gas flow circuit within the tank that absorbs the heat of compression resulting from the refueling of the storage tank, 2) a radiator external to the tank whereby the heat absorbed in the tank is exhausted from the tank to an environment external to the tank, and 3) a pressure powered ejector pump producing a Venturi jet interposed between a high pressure gas depot refilling line and the tank, the ejector pump having a suction inlet and an outlet to the storage tank that powers the gas flow circuit, wherein the heat absorbent media is the refill gas and, after the refill gas circulating within the loop is cooled to a predetermined temperature, or the tank is filled with a predetermined quantity of gas, circulation of the gas terminates, gas flow from the depot terminates, and the cooled gas is thereupon stored in the tank.
Dependencies are inferred from the claim text.