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Engine camshaft and engine

A camshaft and engine technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of not being able to balance power and fuel economy, and can not meet the fuel consumption and power requirements of the engine and the whole vehicle, so as to meet the power requirements Effects of Sexual and Economic Needs

Inactive Publication Date: 2019-12-13
深圳臻宇新能源动力科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] There is only a single fixed profile cam on the traditional engine camshaft, so that each valve of the engine corresponds to a fixed profile cam, that is, the valve can only form a fixed valve lift, resulting in an engine with only a fixed valve lift. However, under different working conditions, the engine cannot meet the fuel consumption and power requirements of the engine and the whole vehicle, and thus cannot take into account both power and fuel economy, and there is room for improvement.

Method used

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  • Engine camshaft and engine

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Embodiment Construction

[0020] 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 and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention discloses an engine camshaft and an engine. The engine camshaft comprises a camshaft body and a plurality of profile cams with different profiles, wherein the plurality of the profile cams are arranged on the camshaft body and can rotate along with rotation of the camshaft body, and the plurality of the profile cams can move along the axial direction of the camshaft body, so that a profile cam used for driving a valve to act is switched between the plurality of profile cams so as to change the valve lift of the valve. According to the engine camshaft, the plurality of profile cams with different cam profiles are arranged on the camshaft body and can be switched in the axial direction to separately correspond to valves under different working conditions of the engine to changethe valve lift of the valves, so that the power and economy requirements under different rotating speeds and operating conditions of the engine are met, the fuel economy of the engine can be improved, and the emission effect is improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine camshaft and an engine. Background technique [0002] There is only a single fixed profile cam on the traditional engine camshaft, so that each valve of the engine corresponds to a fixed profile cam, that is, the valve can only form a fixed valve lift, resulting in an engine with only a fixed valve lift. However, under different working conditions, the engine cannot meet the fuel consumption and power requirements of the engine and the vehicle, and thus cannot take into account both power and fuel economy, and there is room for improvement. Contents of the invention [0003] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. Therefore, the present invention proposes an engine camshaft, which can meet the fuel consumption and power requirements of the engine and the whole vehicle, and then c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/047F01L1/08
CPCF01L1/047F01L1/08
Inventor 李晓君郭记
Owner 深圳臻宇新能源动力科技有限公司
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