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Method and device for introducing liquid into an exhaust-gas purification system

  • US 5,884,475 A
  • Filed: 03/13/1997
  • Issued: 03/23/1999
  • Est. Priority Date: 09/13/1994
  • Status: Expired due to Term
First Claim
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1. A method for operating an exhaust-gas purification device, which comprises:

  • drawing a liquid from a reservoir through a supply line;

    introducing the liquid into an exhaust gas in an exhaust of a combustion system during combustion, for chemical purification of the exhaust gas; and

    draining at least a section of the supply line with a pressurized gas during a shutdown of the combustion system.

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