Air intake system of marine diesel engine
A marine diesel engine and air intake system technology, applied in the direction of charging system, mechanical equipment, engine components, etc., can solve the problem of reduced exhaust gas after-treatment capacity, reduce combustion temperature, reduce the influence of acid-base balance of engine oil, Effect of reducing acid gas content
Inactive Publication Date: 2016-01-20
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide an air intake system for marine diesel engines, so as to overcome the shortcomings of the reduction and failure of the existing catalysts using the SCR selective catalytic reduction scheme after a certain period of use, which leads to the reduction of the ability to treat exhaust gas
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[0021] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0022] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0023] figure 1 A schematic structural view of an air intake system of a marine diesel engine according to a preferred embodiment of the present invention is shown. Such as figure 1 As shown, part of the cylinder components and the intake system of the diesel engine are shown, wherein the intake system includes: a cylinder head 1, an intake pipe 2, a driving component and a water mist generating device 4; the cylinder hea...
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The invention discloses an air intake system of a marine diesel engine. The air intake system comprises a water mist generation device, wherein a spraying port of the water mist generation device extends to an outlet end of an air inlet pipe of the diesel engine through a pipeline; the water mist generation device is provided with an adjusting switch for adjusting the water mist generation strength; the adjusting switch is connected with a throttle control handle of the diesel engine through a driving component; and the throttle control handle drives the driving component to control the opening degree of the adjusting switch so as to control the water mist generation device to spray into the air inlet pipe with different strengths. The air intake system uses a water mist and air mixture as intake air of a cylinder; and water mist can effectively reduce the combustion temperature in the cylinder of the diesel engine, inhibit the generation speed of oxynitride NOx, reduce the generation quantity of the oxynitride NOx and reduce the emission of the oxynitride NOx.
Description
technical field [0001] The invention relates to an air intake system of a diesel engine, in particular to an air intake system of a marine diesel engine. Background technique [0002] As we all know, when a diesel engine is working, the intake air is usually taken directly into the atmosphere. For supercharged and intercooled models, it needs to be boosted by the supercharger first, then cooled by the intercooler and then enter the intake pipe. into the cylinder. [0003] During the working process of the diesel engine, because the temperature and pressure in the cylinder are high, it is easy to produce a large amount of nitrogen oxides NOx, because the relevant emission regulations have strict requirements on nitrogen oxides NOx, so the use of EGR exhaust gas recirculation or SCR selective catalytic Reduction and other methods to control the emission of nitrogen oxides NOx. In particular, the cost of using the SCR selective catalytic reduction scheme is very high, which i...
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IPC IPC(8): F02M25/025
Inventor 李伟沈捷黄永仲覃文胡俊芳李佑长
Owner GUANGXI YUCHAI MASCH CO LTD