Granite flame finishing internal burner

Patent · Tue Jun 30 04:00:00 EDT 1992

OSTI ID:7016431

Browning, J A

This patent describes an internal burner for producing subsonic air-fuel flame jets for the flame finishing of granite and similar stone; a first nozzle within the body of relatively small diameter d{sub 1} at an exit end of the combustion chamber to expand the products to supersonic velocity, a duct of sufficiently large diameter within the body downstream of the first nozzle and open thereto to convert the jet of hot gases to subsonic velocity by shock action for discharging hot gas product of combustion, and a second nozzle having a larger diameter d{sub 2} than the diameter d{sub 1} of the first nozzle within the body open to the duct and at the end of the duct opposite the first nozzle whereby a subsonic flame jet is produced to be directed against the rock surface.

• Assignee: Browning Engineering, Enfield, NH (United States)
• Patent Number(s): US 5125828; A
• Application Number: PPN: US 7-670834
• OSTI ID: 7016431
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR
BURNERS
CHEMICAL REACTIONS
COMBUSTION
FABRICATION
FLAMES
FLUID FLOW
FLUIDS
FUELS
GASES
GRANITES
IGNEOUS ROCKS
JETS
MATERIALS WORKING
NOZZLES
OXIDATION
PLUTONIC ROCKS
ROCKS
SUBSONIC FLOW
SURFACE FINISHING
THERMOCHEMICAL PROCESSES