A system for storing fuel includes a support structure supporting at least one fuel tank a predetermined distance above ground. The fuel tank includes an inner tank configured to contain a gaseous fuel, an intermediate tank encompassing the inner tank and defining a first annular space therebetween, and an outer tank encompassing the intermediate tank an defining a second annular space therebetween. The first annular space is filled with a shock-absorbing resin for absorbing structural stresses, while the second annular space is filled with an insulating material providing for fire and ballistic resistance. The intermediate tank is connected to the support structure and to at least one adjacent fuel tank, and prevents the transfer of load to the inner tank.

A system to convert and dispense pressurized gas(es) of cryogenic liquids of gas(es), and systems and methods to efficiently convert liquid natural gas (LNG) to compressed natural gas (CNG) and low pressure natural gas (NG) and other cryogenic liquids of gas. The system requires one dedicated pressure vessel of horizontal and vertical elements at the dispensing location to convert, retain, store, and dispense multiple pressures of gas from a cryogenic liquid supply such as a non-dedicated high pressure cryogenic personal supply tank. The system efficiently modifies and controls parameters of volume, pressure, and temperature in conversion scale to retain all converted product under human control to dispense without process required waste for use in commercial, industrial, and in particular single family residential applications and service can be accomplished by pickup truck and trailer, where semi trucks, big rig trucks and process pollution are not welcome.

Disclosed is a paired compress gas energy power system and power method. The paired compress gas energy power system includes: a paired compress gas energy storage device having a high pressure air container and a low pressure air container, the high pressure air container is filled with a high pressure gas, the low pressure air container is filled with a low pressure gas; a paired compress gas energy engine, respectively connected to the low pressure air container and the high pressure air container; and a power device connected to the rotary shaft of the paired compress gas energy engine, the power device is driven by the paired compress gas energy engine. The invention converts the paired compress gas energy into the mechanical torque energy through the paired compress gas energy engine to drive the power device to work, or to drive the generator to generate electric energy.

A multi-stage gas compression, storage and distribution system utilizing a hydrocarbon gas from a municipal gaseous supply line in a manner that does not affect an operational integrity of said municipal gaseous supply line includes an inlet line fluidly in fluid communication with a supply of hydrocarbon gas at a first pressure, a first compression unit configured to compress the hydrocarbon gas from the inlet line to a second pressure, a first storage vessel configured to receive the hydrocarbon gas from the first compression unit for storage at the second pressure, a second compression unit configured to compress the hydrocarbon gas from the first storage vessel to a third pressure, and a second storage vessel configured to receive the hydrocarbon gas from the second compression unit for storage at the third pressure.

The present invention is a system and method of storing various quantities of cryogenic material with lower cost than systems found in prior art. Novel feature of the system is the ability to use minimum amounts of different types of energy to maintain various quantities of cryogenic material. An additional novel feature is the use of common components and materials.

A system and method for protecting a lightweight pressure vessel capable of airborne and underwater use. The system includes an enclosure and a gas container that is capable of holding pressurized or liquefied gas in sufficient quantity to increase internal pressure of the pressure vessel, so that the internal pressure of the pressure vessel equals an external pressure of the pressure vessel. The system also includes a pressure relief device coupled to the enclosure. The pressure relief device is configured to release the pressurized or liquefied gas from the pressure vessel when the internal pressure exceeds the external pressure by a predetermined amount. The system also includes a gas supply mechanism coupled to the gas container, the gas supply mechanism being configured to allow gas from the gas container into order to increase the internal pressure of the pressure vessel until the internal pressure equals the external pressure.

The present invention is a system and method of storing various quantities of cryogenic material with lower cost than systems found in prior art. Novel feature of the system is the ability to use minimum amounts of different types of energy to maintain various quantities of cryogenic material. An additional novel feature is the use of common components and materials.

A multi-walled storage tanks use pressure differences between walls/shells to maximize fluid mass storage for tank size by reducing or minimizing the distance between the outer most layers of a multi-layer storage device, and keeping the middle one(s), particularly the innermost space, as large as possible, while having shell walls of substantially the same material and thickness, with no wall being thicker than the inner shell wall.

A device for compressing a fluid, such as dihydrogen, dioxygen, dinitrogen or argon, including: a cryogenic vessel capable of containing the fluid in liquid form at a cryogenic temperature, and fluid in the form of gas originating from a vaporization of the liquid in the cryogenic vessel; a pressure vessel surrounding the cryogenic vessel, configured to withstand an inner pressure; and a device for equalizing the pressure between the interior of the cryogenic vessel and the interior of the pressure vessel, the equalization device including a piping configured to transfer overpressurized gas into the cryogenic vessel in a space comprised between the pressure vessel and the cryogenic vessel, the piping including a device for reheating the overpressurized gas originating from the cryogenic vessel up to a predetermined temperature higher than the cryogenic temperature.

Methods and systems are provided for a multi-fuel fuel system. In one example, a system includes a first fuel arranged in an interior volume of a first tank and a second fuel arranged in an interior volume of a second tank. The second tank is arranged in the interior volume of the first tank and in contact with the first fuel.