Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent
1994-09-29
1997-07-01
Dority, Carroll B.
Stoves and furnaces
Liquid heater
Fluid fuel burner for other than top-accessible vessel
126361, 431354, 431 90, 13750514, 137100, 481801, F24H 100
Patent
active
056427247
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The subject inventions relate to methods and apparatus for mixing secondary fluids with primary fluids, to venturi systems, to methods of making venturi systems, to gas-fired heaters, and to combinations thereof.
2. Background
Venturi and other fluid mixing system and their utility are well known in various fields.
It is an object of the invention to provide improved venturi and other fluid mixing systems for use in agriculture, fluid fuel combustion and other fields where liquid or gaseous chemicals, liquid or gaseous fuels or other fluids are entrained in a stream of water, air or other gaseous or liquid primary fluid.
Another object of the invention is to incorporate improved venturi or other fluid mixing systems for combustible gas and air into gas-fired water and other heaters.
Gas-fired water and other heaters and their utility are well known, and it is another object of the invention to provide improved gas-fired water and other heaters and heating systems.
DISCLOSURE OF INVENTIONS
According to one aspect thereof, the invention resides in methods of mixing a secondary fluid with a primary fluid, and more specifically resides in the improvement comprising in combination, providing for the primary fluid a first flow channel deceasing in a direction of flow of primary fluid, utilizing dynamic energy of that primary fluid to induce the secondary fluid into that primary fluid, providing for the primary fluid with induced secondary fluid a second flow channel increasing in a direction of flow of that primary fluid with induced secondary fluid, and arranging corresponding sides of the first and second flow channels along a plane common to these first and second channels.
From a related aspect thereof, the invention resides in apparatus for mixing a secondary fluid with a primary fluid by utilizing dynamic energy of that primary fluid to induce the secondary fluid into such primary fluid, and more specifically resides in the improvement comprising, in combination, a first flow channel for the primary fluid deceasing in a direction of flow of primary fluid, a second flow channel for the primary fluid with induced secondary fluid increasing in a direction of flow of that primary fluid with induced secondary fluid, and an inlet of the secondary fluid to the primary fluid between these first and second flow channels, with corresponding sides of these first and second flow channels lying in a plane common to these first and second channels.
From a related aspect thereof, the invention resides in a method of mixing a secondary fluid with a primary fluid, and more specifically resides in the improvement comprising, in combination, tracking the primary fluid in pressure with the secondary fluid at a negative pressure offset relative to a pressure that would produce a substantially constant ratio of secondary fluid to primary fluid, metering that secondary fluid, and distributing that metered secondary fluid across a flow of the primary fluid.
From a related aspect thereof, the invention resides in apparatus for mixing a secondary fluid with a primary fluid, and more specifically resides in the improvement comprising, in combination, a zero governor type of secondary fluid regulator having a negative pressure offset, a secondary fluid metering device connected to that governor, and a secondary fluid distributor connected to that metering device.
The invention resides also in combinations of these mixing methods and in combinations of these mixing apparatus.
Another invention herein disclosed resides in a method of constructing and operating a gas-fired heater having a gas burner, combustion chamber and heat exchanger assembly for heating fluid in the heat exchanger by combustion of an air/gas mixture, with the gas burner located closer to ground than the heat exchanger which can produce condensate and scale falling toward ground. The invention according to this aspect resides more specifically in the improvement comprising, in combination, tilting the combustion chamber and heat ex
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Dority Carroll B.
Teledyne Industries Inc.
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