Patent · US Expired

Fuel injection device

US5067880A · kind A · utility

5Cited by

7References

11Claims

0Family size

Assignee

Kloeckner-Humboldt-Deutz AG · DE

Inventors

Gerhard Finsterwalder · Bensberg, DE
Reda Rizk · Recklinghausen, DE
Hans-Gottfried Michels · Lechenich, DE

Key dates

Filing date	Apr 22, 1991
Grant date	Nov 26, 1991
Priority date	—
Expiry date	Apr 22, 2011

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02B3/06
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector for diesel engines, having at least one pump plunger (1), which is sealingly guided in a plunger bushing (2) and, together with said bushing, defines a high-pressure space (5). The pump plunger (1) has an internal suction valve (6) which creates a fuel injection pump having a small dead volume in the high-pressure region and low construction cost. The suction valve (6) may be provided with a cone-shaped compression spring (7) disposed in the high-pressure region (5) or with a stroke limiting stop (28, 28a).

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