Pulse combustion apparatus

Patent · Tue Feb 03 04:00:00 EST 1987

OSTI ID:6803970

Kitchen, J A

A pulse combustion apparatus is described comprising: a combustion chamber having inlet means for fuel charges and an outlet for exhaust gases remote from the inlet means; an exhaust pipe extending from the exhaust gas outlet and forming a resonant system with the combustion chamber; and, means operable to initiate combustion in the chamber; wherein the fuel charge inlet means comprises: one way air inlet valves which open and permit air to enter the combustion chamber during low pressure portions of successive pulse combustion cycles, and close during high pressure portions of the cycles, the valves including at least one primary air inlet valve; a fuel nozzle having a fuel inlet for connection to a fuel supply externally of the combustion chamber, and a fuel outlet; means removably supporting the nozzle with its fuel outlet in the combustion chamber adjacent the primary air inlet valve, while permitting removal of the nozzle at appropriate times and replacement with a nozzle for a different fuel; baffle means within the combustion chamber co-operating with the nozzle to define a metering orifice through which air entering the combustion chamber from the primary air inlet valve is constrained to flow; the nozzle support means being adapted to position the nozzle with respect to the baffle means to determine the size of the metering orifice according to the volume of primary air required to maintain continuous combustion commensurate with a pulse cycle of reasonable strength.

• Assignee: John A. Kitchen, Ltd., Hastings
• Patent Number(s): US 4640674
• OSTI ID: 6803970
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
BAFFLES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
COMBUSTORS
CONTROL EQUIPMENT
DESIGN
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FLUIDS
FUEL SYSTEMS
FUELS
GAS FLOW
GASEOUS WASTES
GASES
INTAKE STRUCTURES
MEASURING INSTRUMENTS
MECHANICAL STRUCTURES
METERING
METERS
NOZZLES
OPENINGS
OPERATION
ORIFICES
OXIDATION
PRESSURE DEPENDENCE
PULSE COMBUSTION
PULSE COMBUSTORS
THERMOCHEMICAL PROCESSES
VALVES
WASTES