Turbocharging system for an internal combustion engine

Patent · Tue Jun 23 04:00:00 EDT 1987

OSTI ID:6190894

Ishida, N; Kawamura, M; Ishihara, T

This patent describes a turbocharging system for an internal combustion engine having an exhaust system including an exhaust manifold for removing exhaust gas from the engine, the turbocharging system comprising: a. a turbocharger including a turbine portion and a compressor-portion connected together by shaft means, the turbine portion being in flow communication with the exhaust system and rotatably driven by the exhaust gas; and b. secondary air supply means for adding secondary air to the exhaust gas upstream with respect to the direction of flow of exhaust gas when the air-fuel ratio of the exhaust gas is below a prescribed ratio; the secondary air combusts with unburned fuel remaining in the exhaust gas to increase the temperature and pressure of the exhaust gas driving the turbine portion.

• Assignee: NGK Spark Plug Co., Ltd., Aichi
• Patent Number(s): US 4674283
• OSTI ID: 6190894
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
CHEMICAL REACTIONS
COMBUSTION
COMPRESSORS
CONTROL
DESIGN
ENGINES
EXHAUST GASES
EXHAUST SYSTEMS
FLUID FLOW
FLUIDS
FUEL-AIR RATIO
GAS COMPRESSORS
GAS FLOW
GAS TURBINES
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINERY
MOTION
OPERATION
OXIDATION
PRESSURE CONTROL
ROTATION
SUPERCHARGERS
TEMPERATURE CONTROL
THERMOCHEMICAL PROCESSES
TURBINES
TURBOCHARGERS
TURBOMACHINERY
WASTES