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Internal combustion engine charge air cooler precooler

  • US 8,813,489 B2
  • Filed: 02/15/2011
  • Issued: 08/26/2014
  • Est. Priority Date: 02/15/2011
  • Status: Expired due to Fees
First Claim
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1. A power system comprising:

  • an air-breathing, fuel-consuming, internal combustion (IC) engine cooled by a liquid coolant providing a rotary power output and producing products of combustion;

    at least one turbocharger having a turbine for receiving the products of combustion from said IC engine and a compressor driven by said turbine for pressurizing air for delivery to said IC engine;

    a primary heat exchanger in fluid flow connection to and interspersed between said compressor and said IC engine;

    a secondary heat exchanger in fluid flow connection between said compressor and said IC engine and interposed upstream of said primary heat exchanger, said secondary heat exchanger being an air-to-liquid heat exchanger and receiving said liquid coolant from said IC engine;

    a thermostat for controlling flow of said liquid coolant from said engine through said secondary heat exchanger, said thermostat being adjacent to and downstream of said secondary heat exchanger and configured to receive said liquid coolant from said secondary heat exchanger, anda first pump connected to and driven by said IC engine to deliver said liquid coolant to said IC engine and a second liquid pump connected to and driven by said IC engine to deliver said liquid coolant to said secondary heat exchanger;

    wherein said second liquid pump pumps said liquid coolant from said IC engine to a heat generating component to cool said heat generating component with said liquid coolant and said secondary heat exchanger is in parallel flow connection with said heat generating component and is also fed with said liquid coolant from said second liquid pump.

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