EGR (exhaust gas recirculation) passage structure and EGR system
A channel structure and air intake channel technology, applied to the charging system, adding non-fuel substances to the fuel, internal combustion piston engines, etc., can solve the problems of complex structure of the pipeline system and inconvenient use, and achieve small size, convenient use, The effect of simple and compact structure
Active Publication Date: 2014-04-23
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
[0008] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides an EGR channel structure EGR system to solve the problems of complex structure and inconvenient use of the pipeline system
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[0030] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] The EGR channel structure provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
[0032] An embodiment of the present invention provides an EGR channel structure. A first cavity and a second cavity arranged vertically are formed inside the EGR channel structure, and the first cavity communicates with the second cavity. One end of the EGR channel structure adjacent to the first cavity is connected with the e...
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The invention provides an EGR (exhaust gas recirculation) passage structure and an EGR system. A first cavity and a second cavity in vertical arrangement are formed at the inner part of the EGR passage structure, the first cavity is communicated with the second cavity, and one end of the EGR passage structure, near the first cavity, is connected with a cylinder head of a motor; a gas inlet passage is also formed at the inner part of the EGR passage structure, the gas inlet passage is respectively communicated with the second cavity and a cylinder gas exhaust passage formed on the cylinder head of the motor, the first cavity is communicated with a cylinder gas inlet passage on the cylinder head of the motor, exhaust gas exhausted from the cylinder gas exhaust passage enters the second cavity through the gas inlet passage and enters the cylinder gas exhaust passage through the first cavity. The EGR passage is simple and compact in structure, small in volume, light in weight, and low in cost; the EGR passage structure which is arranged on the cylinder head of the motor is not limited by spatial distribution, the waste gas is reasonable to enter, and the EGR passage structure is convenient to arrange and use.
Description
technical field [0001] The invention relates to the technical field of automobile engines, in particular to an EGR channel structure and an EGR system. Background technique [0002] As the international community pays more and more attention to environmental protection and energy utilization, vehicle engine emission regulations are increasingly stringent. Therefore, using advanced engine technology, lower emissions and CO 2 Emissions have become an important means for manufacturers of automobiles and internal combustion engines. Among them, EGR (Exhaust Gas Recirculation) technology has been widely used as an effective means to reduce emissions and fuel consumption. [0003] The structure of the EGR system for vehicles mainly includes exhaust gas channels, EGR control valves and exhaust gas cooling channels. The exhaust gas channels are mainly used to transport exhaust gas. The existing exhaust gas channels are usually implemented in the following two ways to achieve the p...
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IPC IPC(8): F02M25/07F02M26/41
CPCY02T10/12
Inventor 慕金华李加旺杨国玺李亚南
Owner CHERY AUTOMOBILE CO LTD