Patent · US Expired

Fuel injection device

US5125807A · kind A · utility

32Cited by

10References

7Claims

0Family size

Assignee

Kloeckner-Humboldt-Deutz AG · DE

Inventors

Wolfgang Kohler · Weiterstadt, DE
Reda Rizk · Recklinghausen, DE
Hans-Gottfried Michels · Lechenich, DE

Key dates

Filing date	Apr 2, 1990
Grant date	Jun 30, 1992
Priority date	—
Expiry date	Apr 2, 2010

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/304
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection device for diesel engines, having at least one pump plunger (4), which is sealingly guided in a plunger bushing (5) and forms, together with said plunger bushing (5), a high-pressure space (11) that is connected to a low-pressure space (13) by means of a control element during the downward motion of the fuel pump plunger, said high-pressure space (11) being placed in free flow communication with an injection valve (49) via an injection line 48. The use of a continuously open flow connection between the high-pressure space 11 and the injection valve 49 minimizes dead space thereby permitting development of high injection pressures.

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