Patent · US Active

Method for operating an injection system

US9086029B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Hans Riepl · Hemau, DE
Tobias Ritsch · Regensburg, DE

Key dates

Filing date	Nov 20, 2012
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Nov 20, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/0602
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method is provided for operating an injection system of a motor vehicle, which injection system is designed as an adjusting system having volumetric flow rate control via a normally open inlet valve. If a fault of the inlet valve leading to undesired closing of the inlet valve is detected, the inlet valve is closed already during the suction phase of the high-pressure pump by applying current and is opened again during a part of the suction phase corresponding to a pumping demand in order to thereby control or at least reduce the flow rate of the high-pressure pump. Thus, corresponding safety measures, such as a pressure-limiting valve in the high-pressure region, can be omitted.

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