Patent · US Active

Gas injector for the direct injection of gaseous fuel into a combustion chamber

US9810179B2 · kind B2 · utility

1Cited by

40References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Felix Jaegle · Ditzingen, DE
Olaf Ohlhafer · Erligheim, DE
Joerg Schoefer · Gerlingen, DE
Robert Giezendanner-Thoben · Gerlingen, DE

Key dates

Filing date	Jan 16, 2015
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Jan 24, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A gas injector for the direct injection of gaseous fuel into a combustion chamber of an internal combustion engine, including a valve seat, a valve needle, which in response to a lift releases a first cross-sectional area at the valve seat, and a gas control region, which is situated at the valve needle and defines a second cross-sectional area together with a component surrounding the valve needle, and in response to a lift, a change in the first cross-sectional area at the valve seat differs from a change in the second cross-sectional area at the gas control region.

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