Gas sampling valve

Details Gas sampling valve Gas sampling valve

1988-07-01

1989-09-26

Myracle, Jerry W.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

7386481, G01M 1500

Patent

active

048690945

ABSTRACT:
A gas sampling valve is provided with a small opening for gas sampling and a gas flow channel communicating therewith and is adapted to sample a gas in the gas flow passage by operating a valve for opening and closing the small opening, wherein at least one detector for detecting the concentration of oxygen or combustion gas is disposed in the gas flow passage, whereby the concentration of oxygen, an air excess ratio, the combustion efficiency, or the like can be measured without using a separate analyzer.

REFERENCES:
patent: 3807233 (1974-04-01), Crawford
patent: 4117815 (1978-10-01), Ikeura
patent: 4177787 (1979-12-01), Hattori et al.
patent: 4663017 (1987-05-01), Ross
patent: 4752361 (1988-06-01), Gautschi
Haaland, D. M., Noncatalytic Electrodes . . . Oxygen Sensors, J. Electrochem. Soc., vol. 127, No. 4, Apr. '80, pp. 796-804.
Badwal, S. et al, Low-Temperature . . . Oxygen Sensors, for Advances in Ceramics, vol. 12, 1984, pp. 598-606.
Society of Automotive Engineers, Inc., "Diesel Combustion Chamber Sampling--Hardware, Procedures, and Data Interpretation"--James E. Bennethum, et al.
"Development of the Toyota Lean Combustion System"-Souich Matsushita et al.

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