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Measurement and control of exhaust gas recirculation with an oxygen pumping device

Patent ·
OSTI ID:6013263
;
This patent describes an electrochemical device for measuring the percentage of exhaust gas recirculation (EGR) in an intake air and exhaust gas mixture of an internal combustion engine. The device includes a first solid electrochemical pump cell; a second solid electrochemical pump cell; a supporting structure coupled to the first and second pump cells; an aperture for providing communication between the restricted volume; a first external circuit means; a second external circuit means; a third external circuit means; and means defining a diffusion barrier between the first pump cell and the second pump cell.
Assignee:
Ford Motor Co., Dearborn, MI (USA)
Patent Number(s):
A; US 5010762
Application Number:
PPN: US 7-443537
OSTI ID:
6013263
Country of Publication:
United States
Language:
English

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Related Subjects

30 DIRECT ENERGY CONVERSION
300505 -- Fuel Cells-- Electrochemistry
Mass Transfer & Thermodynamics
33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330700 -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
CHEMICAL COMPOSITION
CONTROL
CONTROL SYSTEMS
ELECTROCHEMICAL CELLS
ELECTROCHEMICAL ENGINES
ELECTRODES
ELEMENTS
ENGINES
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NONMETALS
OXYGEN
POLLUTION CONTROL
WASTES