Exhaust boundary control device of single-cylinder engine

A boundary control and engine technology, applied in the direction of exhaust device, engine test, engine components, etc., can solve the problems of thermal load difference of components and exhaust boundary conditions in the combustion process, and achieve the effect of improving the degree of automation

Inactive Publication Date: 2017-03-29
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

All of the above will cause the exhaust boundary conditions of the single-cylinder engine to be different from those of the whole machine, thus making the scavenging process of the single-cylinder engine different from that of the whole machine, resulting in a difference in the combustion process and the heat load of parts and components. big difference

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  • Exhaust boundary control device of single-cylinder engine
  • Exhaust boundary control device of single-cylinder engine
  • Exhaust boundary control device of single-cylinder engine

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Embodiment Construction

[0030] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present invention, some technical features known in the art are not described.

[0031] In order to thoroughly understand the embodiments of the present invention, the detailed structure will be set forth in the following description. Obviously, the practice of the embodiments of the invention is not limited to specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0032] According to one aspect of the present invention, an exhaust boundary ...

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Abstract

The invention relates to an exhaust boundary control device of a single-cylinder engine. The exhaust boundary control device comprises an exhaust expansion pipe, an exhaust pressure stabilizing cylinder, an exhaust pressure rough adjusting valve and an exhaust pressure fine adjusting valve, and the exhaust pressure rough adjusting valve and the exhaust pressure fine adjusting valve are arranged in parallel; according to the exhaust boundary control device, the single-cylinder engine obtains the steady-state exhaust pressure and/or exhaust pressure waves basically consistent with the whole device at the scavenging stage; therefore, the exhaust boundary of a whole multi-cylinder machine can be precisely simulated in the single-cylinder engine, and therefore the scavenging process of the whole multi-cylinder machine can be accurately simulated so as to more accurately predict the performance of the whole multi-cylinder machine.

Description

technical field [0001] The invention relates to an exhaust system of an engine, in particular to an exhaust boundary control device for a single-cylinder engine. Background technique [0002] The single-cylinder engine has the advantages of simple design and manufacture, strong independence of each parameter during the test, a small number of test pieces to be replaced, and a significant reduction in test cost. It is a commonly used testing machine. In the process of developing a new engine model, it is necessary to screen the component matching scheme and verify the reliability of the main components through the single-cylinder engine test, so as to reduce the test cost and development risk of the whole machine. For large marine engines, due to the high cost of the whole machine and the high cost of testing, it is more important to carry out component development and performance verification tests in advance by simulating the whole machine with a single-cylinder engine. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/08G01M15/10
CPCF01N13/002F01N13/08F01N13/082G01M15/106
Inventor 毛金龙张文正平涛杨书乔
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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