Testing arrangements for multi-testing injection nozzles
First Claim
1. A testing arrangement for testing injection nozzles in a nozzle holder combination, as to throughflow, opening pressure, buzzing condition, tightness of the nozzle holder combination, and if necessary seat tightness and needle play of a nozzle, the testing arrangement comprising receiving means arranged to receive a nozzle holder combination;
- control means connected to said nozzle holder combination and arranged so that a hydraulic pressure medium at constant temperature flows therethrough and comprising testing means including a first testing circuit provided with a first pump for the hydraulic pressure medium and arranged for testing as to the throughflow, and a second circuit provided with a second pump for the hydraulic pressure medium and arranged for testing as to the opening pressure, buzzing condition, and tightness of nozzle holder combination, said control means further including a hydraulic switching means connected to the first and second testing circuits and to said nozzle holder combination so as to control all testing operations during a single testing cycle.
1 Assignment
0 Petitions
Accused Products
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.
68 Citations
12 Claims
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1. A testing arrangement for testing injection nozzles in a nozzle holder combination, as to throughflow, opening pressure, buzzing condition, tightness of the nozzle holder combination, and if necessary seat tightness and needle play of a nozzle, the testing arrangement comprising receiving means arranged to receive a nozzle holder combination;
- control means connected to said nozzle holder combination and arranged so that a hydraulic pressure medium at constant temperature flows therethrough and comprising testing means including a first testing circuit provided with a first pump for the hydraulic pressure medium and arranged for testing as to the throughflow, and a second circuit provided with a second pump for the hydraulic pressure medium and arranged for testing as to the opening pressure, buzzing condition, and tightness of nozzle holder combination, said control means further including a hydraulic switching means connected to the first and second testing circuits and to said nozzle holder combination so as to control all testing operations during a single testing cycle.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
Specification