×

Fuel injector with pressurized fuel reverse flow check valve

  • US 6,517,011 B1
  • Filed: 06/13/2000
  • Issued: 02/11/2003
  • Est. Priority Date: 06/13/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A fuel injector comprising:

  • a pressurization section at least partially defining a variable-volume pressurization chamber;

    a nozzle section having a check bore, a nozzle chamber, an orifice, a fuel injection check extending into the nozzle chamber and being slidably disposed in the check bore between a first position that blocks fluid communication between the nozzle chamber and the orifice and a second position that opens fluid communication between the nozzle chamber and the orifice, and a reverse flow check valve fluidly connected with the nozzle chamber; and

    a fuel passage fluidly connecting the pressurization chamber in the pressurization section with the reverse flow check valve in the nozzle section, the reverse flow check valve including a perforated reverse flow check hydro-pneumatically movable between an open position that allows fluid communication from the fuel passage to the nozzle chamber and a closed position that denies fluid communication from the nozzle chamber to the fuel passage; and

    wherein the fuel injection check extends through a perforation in the reverse flow check valve.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×