Patent · US Expired

Fuel injector with independent control of check valve and fuel pressurization

US6360721B1 · kind B1 · utility

51Cited by
24References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 23, 2000
Grant dateMar 26, 2002
Priority date
Expiry dateMay 23, 2020

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02M63/0049
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A hydraulically actuated fuel injector has an electronically controlled actuator that moves an actuation valve member. The actuator can position the actuation valve member at one position to cause pressurization of fuel in a nozzle chamber for fuel injection, and at another position to hydraulically bias a check to halt fuel injection while maintaining full fuel pressure in the nozzle chamber indefinitely.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.