Air inlet system of V-shaped multi-cylinder diesel engine
An air intake system and diesel engine technology, applied in the field of air intake system, can solve the problems of short firing interval, poor air intake uniformity, and difficulty in casting, and achieve the effects of improving charging efficiency, reducing casting difficulty, and facilitating disassembly and assembly.
Pending Publication Date: 2019-08-23
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
For high-power V-type high-speed diesel engines, the number of cylinders in a single row is large (take the V20 engine as an example, there are 10 cylinders in a single row), the ignition interval is short, and the air intake uniformity of each cylinder is poor
In addition, if the intake manifold adopts an integral scheme, it will be more difficult to cast
Method used
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[0022] 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.
[0023] 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.
[0024] Such as Figure 1 to Figure 4 As shown, the specific structure of the air intake system of the V-type multi-cylinder diesel engine according to the preferred embodiment of the present invention includes: an air outlet pipe of the intercooler and two rows of air intake pipes, wherein the air outlet pipe and the air intake pipe of the intercooler are symmetrical along the central plane of the engine distribution to en...
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The invention discloses an air inlet system of a V-shaped multi-cylinder diesel engine. The air inlet system of the V-shaped multi-cylinder diesel engine comprises intercooler air outlet pipes and airinlet main pipes, wherein the intercooler air outlet pipes comprise a left intercooler air outlet pipe and a right intercooler air outlet pipe, and the pipe diameters of the left intercooler air outlet pipe and the right intercooler air outlet pipe are gradually increased from an air inlet to an air outlet; the air inlet main pipes comprise a left-column air inlet main pipe and a right-column airinlet main pipe, both the left-column air inlet main pipe and the right-column air inlet main pipe comprise a plurality of air inlet pipe assemblies, each air inlet pipe assembly comprises the air inlet pipe and a plurality of air inlet manifolds communicated with the air inlet pipe, adjacent sections of air inlet pipes are connected through transition connecting pipes, and the pipe diameters ofall sections of air inlet pipes are gradually increased from the air inlet to the air outlet. According to the air inlet system of the V-shaped multi-cylinder diesel engine, the intercooler air outletpipes and the air inlet pipes are symmetrically distributed along the central plane of an engine, and the air inlet pipes are designed into reducing pipes, so that the air intake uniformity of the left-column, right-column and single-column cylinders of the multi-cylinder V-shaped diesel engine is maximized, and the volumetric efficiency of the engine is improved.
Description
technical field [0001] The invention relates to the field of engines, in particular to an air intake system of a V-type multi-cylinder diesel engine. Background technique [0002] In the context of the new era, diesel engines are facing great challenges in the field of new energy, and continuously tapping the thermal efficiency of diesel engines is the future development direction. The improvement of thermal efficiency means that more energy is released under the condition of burning the same diesel oil, that is, the power density is improved, and the insufficient air intake capacity is one of the main technical bottlenecks at present. Therefore, the development of an efficient and compact air intake system can improve the air intake capacity of the diesel engine, thereby further excavating the thermal efficiency of the diesel engine. [0003] At present, diesel engines generally adopt a supercharged and intercooled solution, that is, the turbocharger compresses fresh air a...
Claims
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IPC IPC(8): F02M35/116F02M35/10
CPCF02M35/116F02M35/10268F02M35/10091
Inventor 陈悦唐克远
Owner GUANGXI YUCHAI MASCH CO LTD