Patent · US Expired

Device for preventing abnormal flow of gas fuel from gas fuel injector of diesel engine

US4704997A · kind A · utility

22Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 24, 1986
Grant dateNov 10, 1987
Priority date
Expiry dateJun 24, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A device for preventing abnormal flow of gas fuel from a gas fuel injector of a diesel engine. The device has a pipe for supplying a pressurized gas fuel, a fuel injector including a passage connected to the pipe and leading to fuel injection nozzle ports, and a fuel cut-off valve means adapted to close the gas fuel passage upon detection of a reduction of the fuel pressure in the fuel passage. Any abnormal supply of fuel due to stick of the fuel injector is prevented so as to avoid any risk of explosion which otherwise may be caused by the abnormal supply of the gas fuel.

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