Patent · US Active

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

US9683519B2 · kind B2 · utility

1Cited by

5References

12Claims

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	Jun 20, 2017
Priority date	—
Expiry date	Aug 22, 2035

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, which includes a valve seat, a valve needle having a sealing region, the valve needle releasing a first cross-sectional area at the valve seat in response to a lift, a component surrounding the valve needle, and a gas control region, which is situated directly next to the sealing region, the gas control region providing a constant cross-sectional area between the valve needle and the component surrounding the valve needle across a lift length from a first lift position to a second lift position.

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