Measuring and testing – Gas analysis – Gas chromatography
Patent
1979-08-22
1981-03-24
Lacey, David L.
Measuring and testing
Gas analysis
Gas chromatography
55126, 55135, 55138, 55143, 55270, G01N 3100, B03C 301, B03C 314
Patent
active
042572584
ABSTRACT:
An exhaust gas analyzer apparatus having a particle filter between its input and the analyzer. The separator includes a heat exchanger coil coupled to a condenser, an electrostatic separator coupled to the condenser, a source of fluid pressure and a filter medium. A valve is provided between the electrostatic separator and the source of fluid pressure so that the electrostatic separator may be scrubbed periodically. The filter medium is interposed between the valve and the analyzer. A source of power is provided. The electrostatic separator includes an ionizing device for charging the gas exhaust particles and two alternating sets of collector electrode plates having differing electric potential collecting the charged particles to enable generally particle free gas to be discharged to the analyzer. One set of electrode plates are connected to the ionizing device and the other set is grounded. The filter medium serves as a secondary filter so as to assure particle free dry gas is delivered to the analyzer.
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patent: 2547902 (1951-04-01), Burton
patent: 2556832 (1951-06-01), Vollrath
patent: 2662608 (1953-12-01), Fields
patent: 2675090 (1954-04-01), Landgraf
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patent: 3704572 (1972-12-01), Gourdine et al.
patent: 3705478 (1972-12-01), Vaneldik et al.
patent: 4064548 (1977-12-01), Best et al.
Lacey David L.
Sun Electric Europe B.V.
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