Spark plug knock-resistance performance test device, system and method

A test device and test system technology, applied in the direction of measuring device, impact test, mechanical parts test, etc., can solve the problems of high test cost, uncontrollable knock frequency, difficult assembly, etc., and achieve high test efficiency and test Excellent effect and improved reliability

Active Publication Date: 2019-05-10
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a spark plug anti-knock performance test device with simple structure and good repeatability, so as to solve the problems of difficult assembly, high test cost and uncontrollable knock occurrence frequency of the spark plug performance test device directly installed on the engine

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  • Spark plug knock-resistance performance test device, system and method
  • Spark plug knock-resistance performance test device, system and method
  • Spark plug knock-resistance performance test device, system and method

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Embodiment Construction

[0060] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the invention will be clearly described below in conjunction with the drawings and specific embodiments. Apparently, the described embodiments are some of the embodiments of the invention, but not all of them. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

[0061] In the description of the present invention, it should be noted that, unless otherwise specified and defined, the terms "first", "second", ... "seventh", "eighth" and so on are used to clearly describe product components No. does not represent any substantive difference. "Up", "Down", "Left" and "Right" all refer to the directions shown in the attached drawings. Those of ordinary skill in the art can understand the specific meanings of the above te...

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Abstract

The invention relates to the technical field of spark plug performance test equipment, and discloses a spark plug knock-resistance performance test device, system and method. The spark plug knock-resistance performance test device comprises a burning bomb, an ignition spark plug and a to-be-tested spark plug; a test cavity is arranged in the burning bomb; the ignition spark plug and the to-be-tested spark plug are arranged on the burning bomb; the burning bomb is provided with a gas inlet and a gas outlet; the gas inlet is used for filling combustible mixed gas into the test cavity; the gas outlet is used for being connected to an exhaust system; the ignition spark plug is used for igniting the combustible mixed gas; furthermore, detonation wave is formed in the test cavity; and thus, theto-be-tested spark plug is impacted. According to the spark plug knock-resistance performance test device disclosed by the invention, the detonation wave is formed in the constant-volume burning bomb;the detonation wave forming controllability is improved; the knock impact resistant performance of the to-be-tested spark plug is tested by utilization of the detonation wave; the device is suitablefor testing all kinds of spark plugs; performance optimization experiment support is provided for material selection and structural design of the spark plug; and the device is high in test efficiency,rapid in speed and good in repeatability.

Description

technical field [0001] The invention relates to the technical field of spark plug performance testing equipment, in particular to a spark plug anti-knock performance testing device, system and method. Background technique [0002] Supercharging technology is one of the important means for gasoline engines to achieve energy saving and emission reduction. However, with the increase of supercharging ratio, the frequency and intensity of knocking in the engine have increased, and even super knocking has appeared in direct injection gasoline engines. Phenomenon. Knocking is an abnormal combustion phenomenon in gasoline engines. When it occurs, the combustion pressure and pressure rise rate in the cylinder increase sharply. Under the severe impact of the pressure wave, the stress on the components in the engine increases greatly, and there is a risk of failure. Compared with conventional knock, super knock is extremely destructive to components in the combustion chamber and can c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08G01M13/00G01N3/313
Inventor 齐运亮王博远王志肖建华
Owner TSINGHUA UNIV
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