DESIGNING A BETTER FUEL INJECTOR

A fluid-controlled fuel injector that promises to solve combustion- related problems is described. The unit was developed by Automated Marine Propulsion Systems (AMPS), Inc., of La Porte, Texas. The design retains the conventional fuel pump and injector practically without change, which does not affect the fluid control operations mode of the injector. The pressure of hydraulic fluid produces a loading force in the same manner as the spring in the mechanical injector. Additionally, pressurized fluid produces a hydraulic seal between the needle valve and guide, preventing contaminated heavy fuel from penetrating between them. Fluid control pressure between needle valve and guide also centers the valve and guide. These features create the best environment to raise differential pressure. They provide more precise injection timing and create a shock absorber above the needle valve that eliminates the wave effect and valve vibration, eliminating secondary injection. The result is improved combustion, increased reliability and extended life span for fuel injection components.

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  • Supplemental Notes:
    • Journal article
  • Publication Date: 1989-8

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Filing Info

  • Accession Number: 00658241
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM