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Device for testing a fuel injector or a fuel injection nozzle

A technology of fuel injectors and fuel nozzles, applied in the field of fuel injectors or fuel nozzle devices, can solve the problems of non-reproducibility, inability to detect nozzle hole injection angle deviation, inability to test fuel departure, etc., and achieve the effect of simplified evaluation

Inactive Publication Date: 2016-01-20
MAN ENERGY SOLUTIONS SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, however, with the devices known from the prior art it is not possible to test whether the fuel exits through the fuel nozzle or all nozzle holes of the fuel injector
This does not ensure unrestricted viewing of the fuel nozzle to be tested or of all nozzle holes of the fuel injector to be tested
Furthermore, with the devices known from the prior art it is not possible to detect deviations in the spray angles of the individual nozzle openings
Furthermore, purely visual monitoring or identification of jetting behavior via fitters is flawed and not reproducible

Method used

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  • Device for testing a fuel injector or a fuel injection nozzle
  • Device for testing a fuel injector or a fuel injection nozzle

Examples

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Embodiment Construction

[0013] The invention relates to a device for testing fuel injectors or fuel nozzles of an internal combustion engine. For the sake of simplicity only the fuel nozzles are referred to next.

[0014] figure 1 and 2 Different views of a device for testing fuel nozzles according to the invention are schematically shown in connection with a fuel nozzle 10 to be tested, wherein according to figure 2 The fuel nozzle 10 to be tested protrudes into the test chamber 11 .

[0015] The device has a pump 12 , which generates an injection pressure for the fuel nozzle 10 to be tested, and fuel prepared in a tank 13 , which is supplied to the fuel nozzle 10 to be tested at a defined injection pressure. When testing the fuel nozzle 10 to be tested, it injects fuel into the test chamber 11 .

[0016] Within the meaning of the invention, the test chamber 11 accommodates a test strip 14 which, in the preferred embodiment shown, is accommodated by a holder 15 positioned within the test chamb...

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Abstract

Device for testing a fuel injector (10) or a fuel injection nozzle (10) of an internal combustion engine, having a pump (12) which generates an injection pressure and with the aid of which test medium, in particular fuel, which is provided in a tank (13) can be fed to a fuel injector (10) to be tested or a fuel injection nozzle (10) to be tested, wherein the fuel injector (10) to be tested or the fuel injection nozzle (10) to be tested protrudes into a test chamber (11) or is arranged in a test chamber (11) and sprays the test medium into said test chamber (11), and wherein the test chamber (11) accommodates a test strip (14) which receives test medium which is sprayed by the fuel injector (10) to be tested or the fuel injection nozzle (10) to be tested in the form of a spray pattern which can be evaluated.

Description

technical field [0001] The invention relates to a device for testing fuel injectors or fuel nozzles of an internal combustion engine according to the preamble of claim 1 . The invention additionally relates to a test strip for such a device. Background technique [0002] A device for testing nozzles of internal combustion engines is known from DE-PS1116945, which comprises a pump generating injection pressure, by means of which fuel prepared in a tank can be delivered to the nozzles to be tested. The nozzle to be tested protrudes into the test chamber, wherein the nozzle to be tested injects fuel into the test chamber during the test. The assembler can visually observe the configuration of the spray jet in the test chamber from the outside in order to test the functionality of the nozzle. [0003] With such devices known from the prior art for testing nozzles of internal combustion engines, the general functionality of the nozzles can be tested. Conversely, however, it is...

Claims

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Application Information

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IPC IPC(8): F02M65/00
CPCF02M65/00
Inventor P.德鲁克米勒C.蒙策特M.克尼希R.施托伊特纳
Owner MAN ENERGY SOLUTIONS SE
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