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Temperature varying circulation system for use with alternative fuels

  • US 10,202,950 B2
  • Filed: 06/19/2015
  • Issued: 02/12/2019
  • Est. Priority Date: 06/19/2014
  • Status: Active Grant
First Claim
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1. A fuel conditioning and delivery system for selectively delivering either an OEM fuel or a conditioned alternative fuel to an internal combustion engine that uses coolant to remove excess heat from the engine, comprising:

  • an alternative fuel tank to store the alternative fuel;

    a fuel conditioning manifold comprising at least a fuel conditioning circulation loop in fluid communication with the alternative fuel tank and a manifold heat exchanger, the circulation loop comprising at least one alternative fuel pump, one or a plurality of sensors, and one or a plurality of circulation valves;

    a fuel selector valve in fluid communication with both the fuel conditioning circulation loop and the engine for selectively directing either a flow of OEM fuel or a flow of alternative fuel into the engine; and

    an electronic control unit in electronic communication with the alternative fuel tank, the fuel conditioning manifold and the fuel selector valvewhereby alternative fuel is not supplied to the engine until it is conditioned.

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