Patent · US Active

Pressure accumulator device for a motor vehicle fuel injection system, and method for operating a pressure accumulator device of said type

US10473050B2 · kind B2 · utility

1Cited by

9References

7Claims

0Family size

Assignee

CPT Group GmbH · US

Inventors

Daniel Anetsberger · Regensburg, DE
Tet Kong Brian Chia · Regensburg, DE
Walter Sassler · Regensburg, DE

Key dates

Filing date	Mar 5, 2015
Grant date	Nov 12, 2019
Priority date	—
Expiry date	May 5, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/225
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electrically driven solenoid coupled to a spring-operated valve, regulates pressure in an accumulator by opening when a predefined threshold pressure in a pressure accumulator is exceeded. The solenoid provides an assistive force to a spring-closed valve, reducing the amount of pressure required to open the valve responsive to the amount of current provided to the solenoid. The threshold pressure at which the valve opens is thus determined by the amount of current provided to the solenoid. Increasing the current decreases the threshold pressure; decreasing the current increases the threshold pressure.

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