Reversible waste heat recovery system and method

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United States of America Patent

PATENT NO 9702289
SERIAL NO

14526216

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A waste heat recovery (WHR) system operates in a reverse mode, permitting using the WHR system to transfer heat to the exhaust gas of an internal combustion engine. In another configuration, a WHR system may operate in two modes. The first mode removes heat from exhaust gas of an engine to perform useful work. The second mode transfers heat to the exhaust gas. The benefit of this flexible system is that a WHR system is adaptable to rapidly heat exhaust gas at startup and during other conditions where the temperature of the exhaust gas is less than a predetermined operating range. Because of the ability to rapidly warm engine exhaust gas, an exhaust gas receiving system, such as an EGR or an aftertreatment system, may function to reduce the emissions of the engine more quickly. Because this system is reversible, it retains the capability of a conventional WHR system.

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Patent Owner(s)

Patent OwnerAddress
CUMMINS INTELLECTUAL PROPERTY INC1400 73RD AVE N E MINNEAPOLIS MN 55432

International Classification(s)

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  • 2014 Application Filing Year
  • F01K Class
  • 326 Applications Filed
  • 260 Patents Issued To-Date
  • 79.76 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dane, Marten H Columbus, US 28 205

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Patent Citation Ranking

  • 1 Citation Count
  • F01K Class
  • 25 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2051901 - 1011 - 2002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.555

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