Patent · US Active

Method and device for controlling a quantity control valve

US9080527B2 · kind B2 · utility

0Cited by

13References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rainer Wilms · Markgröningen, DE
Matthias Schumacher · Asperg, DE
Joerg Kuempel · Stuttgart, DE
Matthias Maess · Eppelheim, DE

Key dates

Filing date	Oct 14, 2010
Grant date	Jul 14, 2015
Priority date	—
Expiry date	May 20, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M63/0007
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a fuel injection system of an internal combustion engine, fuel is delivered from a high-pressure pump into a fuel rail. The quantity of the delivered fuel is influenced by a quantity control valve which is activated by an electromagnetic actuating device. The level of control of the quantity control valve during the transition from the closed state to the open state of the quantity control valve is provided in the form of a sufficiently flat, descending progression which allows a robust control of the opening motion with regard to the varying specimen properties.

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