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Document |
Document Title |
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7749290 |
Methods and apparatus to facilitate cooling syngas in a gasifier
A method of cooling syngas in a gasifier is provided. The method includes channeling cooling fluid through at least one platen that extends at least partially through a reaction zone of the...
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5699756 |
Wet-base, down-fired water heater
A fuel-fired, forced draft, down-fired water heater is provided with an improved combustion product flow path that permits the heater to operate with improved fuel efficiency, lowered CO and NOx...
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5566648 |
Heat exchanger
A heat exchanger is disclosed including an annular lower manifold to which a cold-water intake through which cold water comes is connected; an annular upper manifold to which a hot-water exit...
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4909191 |
Hot water production appliances
The invention concerns a single or double circuit hot water production applicance comprising, for the water, one or two nests of parallel vertical coaxial tubes (1) connecting together two rings...
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4825814 |
Combination gas combuster and heat pipe evaporator device
A combination gas combustor and heat pipe evaporator comprised of elongated cylindrical tubes which overfit one another to create a number of longitudinal gas flow passages. A burner disposed at...
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4750452 |
Water heater
An instantaneous hot water heater having a coiled heat exchanger (4) through which water to be heated passes. A fuel supply assembly (22) is provided for supplying air and gas to the interior of...
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4633820 |
High-efficiency thermal group
A thermal plant comprises a clear blue flame burner and a multi-tank boiler of stainless steel. The burner has a nosepiece welded to the boiler and a rear portion removably fixed to the nosepiece....
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4584968 |
Cylindrical boiler
A heat exchanger is formed of a pair of concentrically arranged open-ended cylindrical shells, defining a chamber therebetween, in through which water can pass. Each end of the pair of shells is...
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4584969 |
Dirty water heat exchanger
A dirty water heat exchanger keeps solids from settling out while passing through the heat exchanger and includes a cylindrical furnace duct, connected at a first end to a conventional burner,...
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4582024 |
Fuel heated water storage tank
A fuel heated hot water storage tank with a water filled annular space (33) is disposed in a case (1). The center of the annular space is provided by a flame tube (5), which is heated with the...
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4557220 |
Gas apparatus for producing hot water
There is described here a gas water heater consisting of a blower (1), a premixing device (2), a gas burner (3), a heat exchanger (4), and a waste gas heat exchanger (5). Gas burner (3) works as...
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4492185 |
High efficiency, reduced emissions water heater
Water heaters are provided which exhibit improved efficiency and emissions performance over conventional water heaters, comprising condensing heat exchanger means and infrared fiber matrix burner...
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4465025 |
Steam generator
A steam generator has a wound flow pipe which forms an enclosure structure that surrounds an inner chamber, an inner housing which surrounds the jacket and forms therewith a first annular gap for...
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4407235 |
Safety boiler with high efficiency
A safety boiler with high efficiency comprises a plurality of water jackets disposed around a central vaporizing chamber positioned atop on a combustion chamber and a plurality of sandwiched flues...
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4380215 |
Liquid fuel-fired water heating tank
A water heating tank is disclosed which includes an annular water receptacle having a vertical passageway extending centrally therethrough and opening at its lower end into a plenum chamber beneath...
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4356794 |
Hot water boiler
A hot water boiler, e.g. for central heating, has two castings which contain water passages and are connected together to enclose a combustion chamber and above it a flue. From the flue, the burned...
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4329943 |
Heating boiler
A heating boiler comprises an outer housing with a cylindrical wall in the housing extending from one end thereof and defining therewithin a primary fire chamber. A cylindrical fire space wall...
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4328791 |
Gas supplemented solar collector storage means
The gas supplemented solar collector storage means includes a water tank having supply and return connections for circulating water from the tank to a solar collector and back to the tank. A...
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4282833 |
Hot-water boiler, for instance a central heating boiler, and a metal casting therefor
A hot water boiler, particularly for central heating systems, has a double-walled structure containing water passages and bounding a combustion chamber, and a multi-walled structure outside the...
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4154225 |
De-icing unit
An easily mounted, efficient de-icing unit for stock watering tanks and the like. A heating unit is suspended exteriorly of a tank and acts on a constantly replenished, required volume of wafter...
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3749079 |
HEAT ENERGY SYSTEM AND APPARATUS FOR PRODUCTION OF HOT WATER, STEAM OR HEAT-GAS
An apparatus for the production of hot water, steam or hot gas and having a burner with a uni1directional annular flame from which the hot gaseous flow is led into a narrow ring-shaped channel in...
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3495576 |
COMPLETE SOOT-FREE COMBUSTION OF LIQUID FUEL
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3439666 |
DOUBLE SHELL TANK FLUID HEATER
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3065745 |
Heating device for small caloric requirements
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2832320 |
Gas-fired boiler, more particularly for central heating plants
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2787256 |
Heat exchanger
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