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Exhaust structure capable of reducing exhaust disturbance between air cylinders of engine

An engine and cylinder technology, applied in the field of exhaust structure, can solve the problems of bulky exhaust manifold, slow catalytic converter temperature rise, high engine fuel consumption, etc., and achieve the effects of reducing exhaust interference, lowering temperature, and reducing knocking

Inactive Publication Date: 2017-01-11
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing 4-2-1 exhaust manifolds with other exhaust interference reduction technologies reduce interference by greatly increasing the length of the exhaust branch pipes. The structure of the exhaust manifold has no essential change. The exhaust manifold will inevitably lead to a slower rise in the temperature of the catalyst
It is necessary to delay the ignition time and increase the idling speed during the idling stage of the cold car to ensure that the catalytic converter can quickly reach the optimum operating temperature and reduce emissions. Stable, and for higher emission standards in the future, this technology will face greater challenges
Moreover, the exhaust manifold of this structure is bulky and difficult to arrange

Method used

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  • Exhaust structure capable of reducing exhaust disturbance between air cylinders of engine
  • Exhaust structure capable of reducing exhaust disturbance between air cylinders of engine
  • Exhaust structure capable of reducing exhaust disturbance between air cylinders of engine

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] The present invention provides an exhaust structure (hereinafter referred to as the exhaust structure) for reducing exhaust interference between cylinders of the engine, which includes exhaust branch pipes communicating with each cylinder in each cylinder engine, and every two exhaust branch pipes meet to form an intersection Each junction pipe is connected with a catalytic converter (the junction pipes do not share the same catalytic converter), and the exhaust ports of each catalytic converter meet to form a main exhaust port.

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Abstract

The invention discloses an exhaust structure capable of reducing exhaust disturbance between air cylinders of an engine. The exhaust structure comprises an exhaust branch pipe communicated with each air cylinder, every two exhaust branch pipes are intersected to form an intersection pipe, each intersection pipe is communicated with a catalysis device, and exhaust openings of all the catalysis devices are intersected to form a main exhaust opening. According to the exhaust structure capable of reducing the exhaust disturbance between the air cylinders of the engine, the exhaust disturbance can be reduced, exhaust is more thorough, the residual amount of waste gas in the air cylinders is reduced, the air inlet amount is improved, meanwhile, the temperature of mixed gas in the air cylinders is reduced, and detonation is reduced; meanwhile, exhausts of the two sets of air cylinders are provided with the independent catalysis devices, the oil break and cylinder stop function of the two sets of air cylinders of the engine can be achieved, and the oil consumption rate is reduced.

Description

technical field [0001] The invention relates to the field of engines, in particular to an exhaust structure for reducing exhaust interference between cylinders of the engine. Background technique [0002] With the gradual implementation of the country's fourth-stage fuel consumption regulations, the main problem facing engines is how to reduce fuel consumption to meet increasingly stringent regulatory requirements. [0003] At present, there are many technical means for reducing fuel consumption of gasoline engines, such as: reducing mechanical friction, reducing pumping loss, thermal management, improving combustion efficiency, supercharging miniaturization, etc. Among them, the Atkinson cycle technology is used to reduce pumping loss and improve combustion efficiency. The measures are widely used in hybrid vehicles. Due to the small intake air volume of the Atkinson cycle and the need for a large geometric compression ratio, the external characteristics and performance can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/10
CPCF01N13/107F01N13/011
Inventor 刘青林陈玮安宝珠虞坚钱海青颜丙辉张香月
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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