Internal combustion engines and methods of operation

Patent · Tue Oct 20 00:00:00 EDT 1987

OSTI ID:5763258

Wang, L S

The method for the operation of an internal combustion engine is described having means in which an air-fuel input of variable ratio is combined and ignited to produce a high temperature and pressure exhaust gas stream. It consists of: (a) directing the exhaust gases through expansion means to extract work therefrom; (b) monitoring on a continuing basis the air-fuel ratio and the temperature of the exhaust gases; (c) continuously comparing the temperature of the exhaust gases to predetermined standards; and (d) continuously variably compressing the input air of the air-fuel mixture in response to the control signal such that the exhaust gas temperature is maintained at the predetermined standard during engine operation. An improved internal combustion engine is described comprising: means for producing a high temperature and pressure exhaust gas stream; output means for extracting output work from the exhaust gas stream; variable compressor means drive coupled to the exhaust gas production means; sensing means adapted and arranged for continuous monitoring of the temperature of the exhaust gas stream; and means for providing a continuous control signal for varying the compression of the input air.

• Assignee: NOV; NOV-88-087004; EDB-88-009330
• Patent Number(s): US 4700542
• OSTI ID: 5763258
• Resource Relation: Patent File Date: Filed date 21 Aug 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
COMBUSTION CONTROL
DESIGN
OPERATION
COMPRESSORS
CONTROL SYSTEMS
EXHAUST GASES
EXHAUST SYSTEMS
FUEL INJECTION SYSTEMS
FUEL-AIR RATIO
IGNITION
MONITORING
PRESSURE CONTROL
TEMPERATURE CONTROL
CONTROL
ENGINES
FLUIDS
FUEL SYSTEMS
GASEOUS WASTES
GASES
HEAT ENGINES
WASTES
330100* - Internal Combustion Engines