Alternative-fuel gas orifice having principal-fuel gas orifice temperature profile and a heating, ventilation and air conditioning system incorporating the same

• Main Authors: Paller, Hans J, Kowald, Glenn W
• Format: Patent
• Language: English
• Published: 13.08.2019
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; BURNERS; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COMBINED OPERATIONS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MACHINE TOOLS; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; RANGES; REFRIGERATION OR COOLING; REFRIGERATORS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; UNIVERSAL MACHINE TOOLS; VENTILATING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An alternative-fuel gas orifice, a gas furnace configured to employ the same and a method of designing a gas orifice. In one embodiment, the gas orifice includes: (1) a body having an aperture extending therethrough and including: (1a) a metering neck having a cross-sectional area such that a given flow rate of a gas is established when the gas is delivered to the gas orifice at a given alternative-fuel delivery pressure and (1b) a diffuser having a cross-sectional area larger than the cross-sectional area of the metering neck and a length such that the gas achieves a substantially laminar flow before exiting the diffuser.