A system of automatically refueled liquid fuel burning torches includes a central fuel reservoir and a pump interconnected with the torches by a fuel plumbing system. When the fuel reaches a lower level in the torches, the plumbing system is automatically pressurized by the pump so that the fuel flows through the plumbing system to raise the fuel to a higher level in the local torch reservoirs. The refueling can be controlled by level sensors and valves in the torches. A remotely operated wick seal can exclude air from torch interiors and prevent fuel spills. A central controller and/or local torch controllers can be powered by wires and/or by batteries, which can be recharged by solar power. The controllers can be wirelessly monitored and/or controlled by software running on a remote device. The remote device and software can control a plurality of the systems.

A system of automatically refueled liquid fuel burning torches includes a central fuel reservoir and a pump interconnected with the torches by a fuel plumbing system. When the fuel reaches a lower level in the torches, the plumbing system is automatically pressurized by the pump so that the fuel flows through the plumbing system to raise the fuel to a higher level in the local torch reservoirs. The refueling can be controlled by level sensors and valves in the torches. A remotely operated wick seal can exclude air from torch interiors and prevent fuel spills. A central controller and/or local torch controllers can be powered by wires and/or by batteries, which can be recharged by solar power. The controllers can be wirelessly monitored and/or controlled by software running on a remote device. The remote device and software can control a plurality of the systems.

A fuel connection unit (10) for a fuel-operated vehicle heater (18) includes a connection unit body (12), which can be arranged at a heater housing (16). A fuel release line connection area (32) connects a fuel release line leading to a combustion chamber. A fuel feed line connection area (46) projects from the connection unit body (12) for connecting a fuel feed line. At least one functional unit (50), for influencing the flow of fuel in a fuel flow volume (36) formed in the connection unit body (12), is provided in the connection unit body (12).

A steam generator system configured to burn hydrogen and oxygen at stoichiometry along with a increased-pressure water and steam. Said steam generator system comprise a hydrogen source, an oxygen source, a nitrogen source, a water source, a steam source, a hydrogen-oxygen handling unit, a cooling unit, a one or more H2-O2 steam generators and a control unit. Said steam generator system is configured to provide said hydrogen source to said hydrogen-oxygen handling unit through an oxygen passage, said oxygen source to said hydrogen-oxygen handling unit through a hydrogen passage, and said nitrogen source to selectively purge said oxygen passage and said hydrogen passage. Said water source provide water to said cooling unit. Said cooling unit is configured to receive said water source and said steam source.

A self-pumping fuel injector includes a pump and a motor for, in-part, delivering fuel to a combustor at higher fuel pressures during start-up and ramping-up conditions. Each pump may include a stationary flow interuptor that intermittently and variably supplies fuel to a rotating spindle that, in-turn, expels the fuel into a nozzle of the injector for improve fuel spray distributions.

Various embodiments of the present disclosure provide a combustion-powered fastener driving tool fuel cell assembly including a fuel cell, fuel cell adapter, and fuel cell adapter cap for a combustion-powered fastener driving tool. The fuel cell, the fuel cell adapter, and the fuel cell adapter cap enable both the fuel cell adapter and the fuel cell adapter cap to be attached to a fuel cell and particularly a sealing member of the fuel cell in one efficient step. This single step process can be done manually or automatically, and is substantially more efficient and less time-consuming than the known fuel cell assemblies.

Various embodiments of the present disclosure provide a combustion-powered fastener driving tool fuel cell assembly including a fuel cell, fuel cell adapter, and fuel cell adapter cap for a combustion-powered fastener driving tool. The fuel cell, the fuel cell adapter, and the fuel cell adapter cap enable both the fuel cell adapter and the fuel cell adapter cap to be attached to a fuel cell and particularly a sealing member of the fuel cell in one efficient step. This single step process can be done manually or automatically, and is substantially more efficient and less time-consuming than the known fuel cell assemblies.

A dual fuel heating source can have a burner and a nozzle. The heating source can be configured to use one of two different fuels flowing at different pressures. The nozzle can have a body, the body defining an outlet opening, an inlet, and an inner chamber. The nozzle can be configured for the first fuel in a first position of said nozzle, and can be configured for a second fuel in a second position.

The invention provides a shut-off valve (10) for a hydrocarbon liquid or fuel intake. The valve includes a first float body (14) configured to float at the surface of hydrocarbon fuel (15), a fuel intake (16) located on the first float (14) and positioned such that the intake (16) is below the surface of the fuel (15), in use, and a second float body (18) configured to float on water (20) and sink in hydrocarbon fuel (15) such that the body (18) floats at an interface of hydrocarbon fuel (15) and water (20) phases, in use. A closing means (24) is located on the second float (18) for closing or restricting the fuel intake (16) when the first float (14) and second float (18) are in contact or in close proximity and further includes a guide arrangement (26) for guiding the first and second float (14, 18) towards each other as the surface of the hydrocarbon fuel (15) approaches the fuel water interface.

A dynamic seal assembly is disclosed for use in a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly including an annular seal member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening facing toward the upstream pressure side of the valve, wherein the upstream leg has a radial length that is greater than a radial length of the downstream leg and includes a retaining foot that extends angularly away from the upstream leg in an upstream direction at an angle of between about 0° and 90°, and a metallic spring is disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member.