Combustion device for combustion of a gaseous fuel

Patent · Tue Jun 30 04:00:00 EDT 1987

OSTI ID:6191256

Alpqvist, J A

This patent describes a combustion device for a hot gas engine having tubes containing working gas. The combustion device has a gaseous fuel with air supplied at a pressure slightly above atmospheric. The device comprises a combustion chamber, a preheater for heating the combustion air by exhaust gases leaving the combustion chamber, a blower for supplying air to the preheater, means for governing the mass flow of air supplied from the blower, a plenum chamber receiving preheated air from the preheater and delivering the preheated air to the combustion chamber. The plenum chamber includes first and second swirl devices for guiding the preheated air as primary and secondary air respectively for combustion, means for delivering a mass flow of gaseous fuel to the combustion chamber as a function of the mass flow of preheated air is supplied. The fuel delivery means includes an ejector having a flow restriction and a tube supplying the gaseous fuel at a pressure slightly above atmospheric to the flow restriction. The tube has an open terminal end protruding into and terminating within the ejector at a most restricted flow area in the restriction. The swirl device is located upstream of the ejector.

• Assignee: Gas Research Institute, Chicago, IL
• Patent Number(s): US 4676736
• OSTI ID: 6191256
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
ATMOSPHERIC PRESSURE
BLOWERS
COMBUSTION CHAMBERS
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST GASES
FLOW REGULATORS
FLUID FLOW
FLUIDS
FUEL-AIR RATIO
FUELS
GAS FLOW
GAS FUELS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MASS TRANSFER
TUBES
VORTEX FLOW
WASTES