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Ejector pump enhanced high pressure EGR system

  • US 5,611,203 A
  • Filed: 10/17/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 12/12/1994
  • Status: Expired due to Fees
First Claim
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1. An exhaust gas recirculation system for an internal combustion engine by which a portion of exhaust gases produced by the engine is recirculated from an exhaust line of the engine into an intake line of the engine, said exhaust gas recirculation system comprising an exhaust gas recirculation line connecting the exhaust line of the engine to the intake line of the engine, a pressure differential means for drawing a secondary flow from said recirculation line into a primary flow in said intake line, and an ejector connected to a source of high pressure air, said ejector having a discharge end disposed in said recirculation line.

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