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Patent Searching and Data


Title:
センサへのガス供給ポンプ及びその方法
Document Type and Number:
Japanese Patent JP2007518076
Kind Code:
A
Abstract:
A pump for a gas sampling or analyzing system includes a pump body having walls impervious to the gas and an electrical coil within the body. The pump is coupled in series with a gas sensor and a gas volume containing the gas to be sampled or analyzed. By varying the amplitude of either the AC or DC current supplied to the coil, the temperature of the coil and, hence, the temperature of the gas within the pump can be varied, causing the pump to "inhale" upon lowering the temperature of the gas within the pump and "exhale" upon raising the temperature of the gas within the pump, thereby enabling the gas from the gas volume to be drawn periodically into and expelled from the sensor for sampling.

Inventors:
Gokfeld, Youssef
Application Number:
JP2006547398A
Publication Date:
July 05, 2007
Filing Date:
December 22, 2004
Export Citation:
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Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
G01N1/00; F04B19/24; F04B37/06; G01N27/00; G01N27/16; G01N33/00; G01N1/24
Domestic Patent References:
JPS55146024A1980-11-14
JPH08292138A1996-11-05
JP2001041916A2001-02-16
JPH0221543U1990-02-13
JP2004347601A2004-12-09
JPS5358287A1978-05-26
Foreign References:
US2663379A1953-12-22
US3687631A1972-08-29
US3375700A1968-04-02
US0520993A1
GB2329716A1999-03-31
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Toshihisa Kurokawa
Arakawa Satoshi