Patent · US Expired

Testing arrangements for multi-testing injection nozzles

US4428228A · kind A · utility

43Cited by

9References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Werner Banzhaf · Sindelfingen, DE
Klaus-Peter Brenner · Schwäbisch Gmünd, DE
Ewald Eblen · Stuttgart, DE

Key dates

Filing date	Sep 21, 1981
Grant date	Jan 31, 1984
Priority date	—
Expiry date	Sep 21, 2001

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M65/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A testing arrangement for testing injection nozzles in a nozzle holder combination, has a first testing circuit provided with a first pump for a hydraulic pressure medium and arranged for testing nozzles as to the throughflow, and a second circuit provided with a second pump for the hydraulic pressure medium and arranged for testing the nozzles as to the opening pressure, buzzing condition, tightness of nozzle holder combination and if necessary seat tightness and needle play of a nozzle, wherein the circuits are arranged so as to perform testing during operation of the nozzles.

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