Method and a sensor device for measuring particle emissions from the exhaust gases of a combustion engine
June 22, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2950387 3247375 3742475 Method and apparatus for indicating an operating characteristic of an internal combustion engine Apparatus and method for measuring the concentration of particles in a gas Method and apparatus for sensing the regeneration of a diesel engine particulate trap Automatically regulated combustion process Catalyst for purifying automotive exhaust gas Ionization gas analyzer and method Patent #: 5475311 InventorsAssigneeApplicationNo. 10562067 filed on 06/22/2004US Classes:73/23.31Gas of combustionExaminersPrimary: Williams, HezronAssistant: Frank, Rodney Attorney, Agent or FirmForeign Patent References
International ClassG01N 7/00AbstractA method and a sensor device for determining particle emissions from exhaust gases of a combustion engine substantially during the use in an exhaust pipe system or a corresponding exhaust gas duct, in which method emitted particles contained in the exhaust gases are charged and the particle emissions are determined by measuring the electric charge carried by the emitted particles in the exhaust gas duct. The emitted particles are charged by varying the way of charging or the charging power with respect to time in such a manner that as a result of the charging, emitted particles brought into at least two different electrical charge states are present, wherein the charge of the emitted particles is further determined as a difference value/values measured from the emitted particles brought into said at least two different electrical charge states.Field of SearchGas of combustion | |
