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A high-efficiency air intake mechanism for an engine

An air intake mechanism and engine technology, applied in engine components, machines/engines, mechanical equipment, etc., can solve problems such as air intake energy consumption, and achieve the effects of improving charging efficiency, increasing acceleration, and increasing fullness coefficient.

Active Publication Date: 2019-06-25
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the intake pressure wave of traditional engines is pulsating, that is, when the engine intake valve opens, the airflow begins to enter the cylinder; wear and tear

Method used

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  • A high-efficiency air intake mechanism for an engine
  • A high-efficiency air intake mechanism for an engine
  • A high-efficiency air intake mechanism for an engine

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a high-efficiency air intake mechanism for an engine, which includes a cam, a piston sleeve, a piston, a cylinder head and a valve; a piston cavity is formed between the inner wall of the piston sleeve, the bottom end of the piston and the top end of the cylinder head; There is an inverted T-shaped guide groove inside along the direction of rotation, the roller and the guide groove cooperate with each other, the outer contour of the cam cooperates with the piston; there is a channel inside the valve stem, one end of the channel communicates with the piston chamber, and the other end communicates with the intake The airway communicates. The high-efficiency air intake mechanism of the engine described in the present invention cancels the traditional valve spring, performs additional boosting during the rising and falling process of the valve, and stores the intake energy when the valve is closed, which can increase the fullness coefficient of the cam and reduce the pump gas Loss, thereby effectively improving the engine charging efficiency. In addition, the structure of the invention is simple and compact, which is beneficial to engineering application.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a high-efficiency air intake mechanism. Background technique [0002] The internal combustion engine is still the prime mover with the highest thermal efficiency, the largest power per unit volume and unit weight, and is widely used. However, with the gradual shortage of energy in the world and the continuous deterioration of environmental resources, we need internal combustion engines to meet stricter fuel consumption standards and emission regulations. [0003] The valves of traditional engines are equipped with valve preload springs, which makes the design of the valve mechanism of the engine take kinematics design and stress design into consideration, so as to avoid the valve flying off due to high speed and the cam wear damage caused by excessive contact stress. In addition, the intake pressure wave of traditional engines is pulsating, that is, when the engine in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L9/02
CPCF01L9/18F01L9/16
Inventor 张翔宇杨震寰黄树和李研芳曲栓王晓滕
Owner CHINA NORTH ENGINE INST TIANJIN
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