Patent · US Expired

Pressure regulator for controlling the pre-injection quantity of fuel in internal combustion engines

US6279543A · kind A · utility

3Cited by

8References

14Claims

0Family size

Assignee

Hydraulik-Ring GmbH · DE

Inventors

Bernd Niethammer · Jeffery Road, DE
Steffen Martin · Niederfrohna, DE
Martin Lenk · Blythewood, US

Key dates

Filing date	Oct 22, 1999
Grant date	Aug 28, 2001
Priority date	—
Expiry date	Oct 22, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M59/105
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a pressure regulator for controlling a pre-injection quantity of fuel in internal combustion engines, preferably Diesel engines, with a control piston which is connected in a first position with a relief valve for producing a decreased pressure on an injection valve and which, in a second, subsequent position can be separated from the relief valve for producing a higher pressure.

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