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Plastic air intake manifold assembly for naturally aspirated engine

An intake manifold, naturally aspirated technology, used in engine components, machines/engines, combustion air/combustion-air processing, etc. Small, enhanced strength, small air intake resistance effect

Active Publication Date: 2018-06-12
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the naturally aspirated engine is working, it is difficult to obtain high power output due to the small amount of intake air at low speeds

Method used

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  • Plastic air intake manifold assembly for naturally aspirated engine
  • Plastic air intake manifold assembly for naturally aspirated engine
  • Plastic air intake manifold assembly for naturally aspirated engine

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0022] Please refer to figure 1 with figure 2 , The preferred plastic intake manifold assembly of the present invention for a naturally aspirated engine includes a cylinder head flange 1, an intake manifold 2, a pressure stabilizing chamber 3, and a throttle flange 4. The fresh air enters the surge chamber 3 through the throttle flange 4, and then flows into each intake port through the intake ports on the cylinder head flange 1 through the four intake manifolds 2. Four injector mounting holes 5 are designed on the cylinder head flange 1. The injector is matched with the wall surface of the injector mounting hole 5 through O-rings to achieve effective sealing. Since the fuel injector is fixed on the intake manifold 2, the manufacturing complexity of the cylinder head is greatly reduced. The two injector fixing bosses 6 are arranged at the junction ...

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PUM

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Abstract

The invention discloses a plastic air intake manifold assembly for a naturally aspirated engine. The plastic air intake manifold assembly comprises a cylinder cover flange, an intake manifold, a pressure-stabilized chamber and a throttle valve flange, wherein air sequentially flows through the throttle valve flange, the pressure-stabilized chamber, the intake manifold and the cylinder cover flangeand then enters an air intake channel of the engine; the cylinder cover flange is arranged above the pressure-stabilized chamber; the throttle valve flange is arranged at one side of the pressure-stabilized chamber; the intake manifold is in a coiling shape and wraps the pressure-stabilized chamber; the plastic intake manifold assembly is manufactured by sequentially welding a first outer sheet,a lower intermediate sheet, an upper intermediate sheet and a second outer sheet through a vibrating friction welding technology; the first outer sheet, the lower intermediate sheet, the upper intermediate sheet and the second outer sheet are manufactured through nylon. According to the plastic air intake manifold assembly for the naturally aspirated engine, the nylon sheets are welded through thevibrating friction welding technology to form the plastic intake manifold assembly, so that the density is low; the mass is light; the inner wall is smooth; the dynamic property of the engine can beimproved, and the fuel oil consumption can be reduced; the air intake resistance is low, so that the dynamic property of the engine can be played highly, and moreover, the fuel oil consumption rate can be reduced.

Description

Technical field [0001] The invention relates to the technical field of automobile engines, in particular to a plastic intake manifold assembly for a naturally aspirated engine. Background technique [0002] When a naturally aspirated engine is working, it is difficult to obtain a higher power output because of the less intake air at low speed. If the intake manifold pipe length is appropriately designed, according to the valve opening and closing timings at different engine speeds, the inertia effect of the intake air in the entire intake passage can be used to maximize the intake air volume at a certain engine speed and achieve better performance. Good engine power. The length of the intake manifold can be determined by simulation analysis of one-dimensional engine performance. [0003] At the same time, in order to minimize the intake loss, improve engine power and reduce fuel consumption, the intake manifold is required to be lightweight and have good inner wall roughness. Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/104
CPCF02M35/10019F02M35/10085F02M35/10111F02M35/10222F02M35/10321F02M35/1036F02M35/1038F02M35/104
Inventor 李力刘道伟王颖管永超梁德玉
Owner DONGFENG MOTOR CORP HUBEI
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