Patent · US Expired

Fuel injection nozzle for internal combustion engines

US4389018A · kind A · utility

0Cited by

2References

21Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Frank Thoma · Stuttgart, DE
Karlheinz Hoffmann · Stuttgart, DE
Gunter Seiler · Stuttgart, DE

Key dates

Filing date	Mar 12, 1981
Grant date	Jun 21, 1983
Priority date	—
Expiry date	Mar 12, 2001

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J15/025
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection nozzle for internal combustion engines, with the nozzle including a spring loaded nozzle needle guided in a nozzle body and controlling an injection orifice. An annular chamber is formed on the side of the nozzle needle facing away from the injection orifice, with the annular chamber being formed by the nozzle needle and nozzle body along with an intermediate member of the injection nozzle. The intermediate member includes a needle stop for the nozzle needle. An elastic sealing ring is guided on the nozzle needle and is arranged in the annular chamber. The sealing ring is supported against a surface forming the needle stop.

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