Patent · US Expired

High-pressure-proof injector body

US6796512B2 · kind B2 · utility

0Cited by

6References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Grieb · Oberstenfeld, DE
Stefan Haug · Waldenbuch, DE

Key dates

Filing date	Oct 21, 2002
Grant date	Sep 28, 2004
Priority date	—
Expiry date	Oct 21, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/03
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to an injector body for a fuel injection system, in which the injector body has a substantially cylindrically shaped valve chamber, into which fuel can be introduced at high pressure via an inlet bore, which discharges through an inlet opening in the valve chamber. To compensate for the high local notch tensile stresses in the circumferential direction of the valve chamber, it is proposed that at least in the region of the inlet opening, the valve chamber be provided with bulges, each adjacent the inlet opening in the circumferential direction. These bulges bring about a major compensation for the notch tensile stresses and thus increase the high-pressure strength.

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