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Method for functionally testing turbomachines, and test device therefor

A testing device and functional testing technology, applied in the direction of gas turbine engine testing, internal combustion engine testing, jet engine testing, etc., can solve the problem of not setting preventive measures, etc.

Inactive Publication Date: 2013-11-13
AVL LIST GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, preventive measures are not set at all: by purposefully tuning the test parameters possible causes of failure can be identified and operation at or outside the boundaries of the normal operating range can be identified

Method used

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  • Method for functionally testing turbomachines, and test device therefor

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Embodiment Construction

[0043] The method and the device described below enable a reliable, early and cost-effective detection of faults on a turbomachine, which is alternatively also referred to below as a test piece. All types of turbines, which convert the energy of a gaseous or liquid energy carrier into mechanical energy, and all types of rotary compressors or pumps, which convert mechanical energy into gaseous or liquid energy, are grouped here under the term "turbine". Within the scope of the present invention, combinations of said machines coupled mechanically, directly or via transmissions, also fall under the term "test piece", whether this is now, for example, a turbocharger for an internal combustion engine or for an aircraft turbojet engine. The features explained below can be used individually or in combination for all types of said test pieces.

[0044] Next, the turbines tested according to the described method are tested under working conditions (performance certification) without f...

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Abstract

The invention relates to a method for functionally testing turbomachines, preferably exhaust gas turbochargers (1, 2, 3), wherein one or more gas pressure pulses is / are applied to the test item and the test item is thereby operated. For a simple, economical, and nevertheless indicative test, the test item (1, 2, 3) is thereby integrated in a test device and at least one gas pressure pulse, preferably at least one compressed air pulse, is applied to the test item by means of said test device, wherein all types of errors are determined from the dynamic behavior of the test item (1, 2, 3) resulting therefrom.

Description

technical field [0001] The present invention relates to a method for the functional testing of a turbomachine, preferably an exhaust gas turbocharger, in which a test piece is loaded with gas under pressure and operated therefrom, and to a method for a turbomachine, preferably an exhaust gas turbocharger A test device for a device having a receptacle for a test piece, a source for a gas under pressure, preferably compressed air, and an analysis device, wherein the test piece can be connected to the source. Background technique [0002] The systematic integration of quality assurance test benches (functional test benches) into the production process of engines, transmissions and other units in the automotive industry has been common for several years. User and regulatory requirements result in the need for more and more efficient engines, for which additional charging by means of mechanical or turbo-driven superchargers is used. Therefore, find appropriate test methods for t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/14
CPCG01M15/09G01M15/14
Inventor H·伯格
Owner AVL LIST GMBH