Patent · US Active

Method for determining a characteristic for a pressure regulating valve

US9057347B2 · kind B2 · utility

2Cited by

3References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Guenter Veit · Plochingen, DE
Marc Oliver Roehner · Heidelberg, DE
Markus Viereck · Emmendingen, DE

Key dates

Filing date	Jun 27, 2011
Grant date	Jun 16, 2015
Priority date	—
Expiry date	Mar 31, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7793
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for determining a characteristic for a pressure regulating valve of an injection system is described, using which fuel is injected into an internal combustion engine, in which a flow of the fuel which flows through the pressure regulating valve is set to a minimum and a control pressure of the fuel is reduced until the pressure regulating valve is opened, and in which at least one value for the characteristic is formed from a difference between a value for the control pressure, at which the pressure regulating valve opens, and a reference value for the control pressure.

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