Measuring and testing – Test stand – For engine
Patent
1990-12-26
1992-07-14
Raevis, Robert
Measuring and testing
Test stand
For engine
73 2331, G01M 1500
Patent
active
051292572
ABSTRACT:
A system for measuring an automotive engine exhaust constituent includes a meter for measuring the mass of air flowing through the engine and for generating a flow signal corresponding to the airflow, and a sample handling apparatus for separating a fraction of the exhaust flowing through the engine and for conducting the exhaust fraction to an analyzer. The system further includes diluent adding means for doping the extracted exhaust fraction with a diluent gas upstream of the analyzer and a processor for receiving the mass flow signal from the engine mass flow meter and for operating the diluent adding device in response to the flow signal. The processor operates the diluent valve such that the flow rate of exhaust gas into the analyzer remains a relatively constant fraction of the total exhaust flowing from the engine.
REFERENCES:
patent: 3473372 (1969-10-01), Klink
patent: 3606155 (1971-09-01), Morris et al.
patent: 3928162 (1975-12-01), Takata
patent: 4029563 (1977-06-01), Binder et al.
patent: 4277368 (1987-07-01), Amy et al.
patent: 4357828 (1982-11-01), Nakano
patent: 4409069 (1983-10-01), Luft
patent: 4499190 (1985-02-01), Spicer et al.
patent: 4506337 (1985-03-01), Yasuhara
patent: 4586367 (1986-05-01), Lewis
patent: 4622105 (1986-11-01), Liu et al.
patent: 4638658 (1987-01-01), Otobe
patent: 4677847 (1987-07-01), Sawatari et al.
patent: 4706193 (1987-11-01), Imajo et al.
patent: 4727746 (1988-03-01), Mikasa et al.
patent: 4742476 (1988-05-01), Schwartz et al.
SAE Technical Paper Series 871913 "Real-Time Measurement of Engine Oil Economy".
Carduner Keith R.
Colvin Alex D.
Leong Dick Y. W.
Drouillard Jerome R.
Ford Motor Company
Raevis Robert
Sadler Clifford L.
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