The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 1992
Filed:
Jan. 02, 1991
Bertrand D Hsu, Erie, PA (US);
General Electric Company, Erie, PA (US);
Abstract
Replenishment water is supplied to a coal-water slurry fuel injector between fuel releases, to resist clogging in the injector. The injector includes a cylindrical body having a needle valve in a central bore, and a fuel intake port which releases fuel into the engine through an opening in the side of the injector body. A nozzle having high pressure ducts is provided in an end of the body for releasing fuel into the engine. A clearance space is provided between the needle valve and the central bore for passage of the replenishment water into the injector. The replenishment water is forced into the nozzle and the high pressure ducts between releases of fuel. Lubricants can be added to the replenishment water, if desired. The replenishment water resists injector clogging by maintaining the fluidity of the coal-water slurry and purging dried coal particles.