Patent · US Expired

Fuel injector having trapped fluid volume means for assisting check valve closure

US5429309A · kind A · utility

29Cited by
10References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 6, 1994
Grant dateJul 4, 1995
Priority date
Expiry dateMay 6, 2014

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02M59/366
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An improved fuel injector nozzle employs a hydraulic spring which controls displacement of a needle check to provide a desired rate of fuel flow through an injector orifice.

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