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Balance shaft group and vehicle with balance shaft group

A technology of balance shaft and balance block, applied in the field of vehicles, can solve the problems of large vibration of three-cylinder engine and affect the ride comfort of the whole vehicle, and achieve the effects of reducing overturning moment, low friction loss, and reducing vibration and noise.

Active Publication Date: 2015-05-27
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to solve the problem of large vibration of the three-cylinder engine, which affects the ride comfort of the whole vehicle, especially the NVH problem at idle speed

Method used

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  • Balance shaft group and vehicle with balance shaft group
  • Balance shaft group and vehicle with balance shaft group
  • Balance shaft group and vehicle with balance shaft group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 or figure 2 as shown, figure 1 In , A, B, and C are the positions of the three cylinders respectively, and the cylinders at positions B and C are not shown. A balance shaft group provided by an embodiment of the present invention, the balance shaft group includes two balance shafts 8, the two balance shafts 8 are respectively located on both sides of the engine, and are kept symmetrical in the Y-axis direction with the centerlines of the three cylinders as the reference , that is: two balance shafts 8 are symmetrically distributed on both sides of the three cylinders A, B, and C in the left-right direction; the center of gravity of the balance shaft group is consistent with the center of gravity of the engine in the Z-axis direction, that is: The center of gravity of the engine is at the same height; the center of gravity of the balance shaft group is consistent with the middle cylinder B in the X-axis direction, that is, the center of gravity of the ba...

Embodiment 2

[0043] Embodiment 2 is basically the same as Embodiment 1, except that the transmission modes of the balance shaft group, the camshaft and the crankshaft are different.

[0044] One end of the two balance shafts is provided with pulleys, one end of the crankshaft is provided with a crankshaft pulley, and one end of the camshaft is provided with a timing pulley. Belt drive connection.

Embodiment 3

[0046] Embodiment 3 is also basically the same as Embodiment 1 and Embodiment 2, except that the transmission modes of the balance shaft group, the camshaft and the crankshaft are different.

[0047] Gears are provided at one end of the two balance shafts, and gears are also provided at one end of the crankshaft and the camshaft, and the balance shaft, the crankshaft and the camshaft are driven through gear meshing.

[0048] It should be noted that the balance shaft assembly of the present invention is not only suitable for three-cylinder engines, but also suitable for all other engines, but because the three-cylinder engine has a large overturning moment and low frequency, the application prospect of the three-cylinder engine is the most extensive.

[0049] The present invention also provides a vehicle, which includes the above-mentioned balance shaft assembly.

[0050] In summary, the present invention, by designing two balance shafts, produces a torque opposite to the overt...

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Abstract

The invention relates to the technical field of vehicles, in particular to a balance shaft group and a vehicle with the balance shaft group. The balance shaft group comprises two balance shafts, wherein the two balance shafts are respectively located at two sides of an engine and are symmetrical in Y-axis direction with a center line of an air cylinder as a benchmark. The centers of gravity of the balance shaft group in Z-axis direction and X-axis direction and respectively stay the same with the center of gravity of the engine and the center of a middle air cylinder. The two balance shafts generate a moment function which is reversed to a capsizing moment of the engine when the two balance shafts rotates, the capsizing moment is reduced, vibration and noise of the engine are reduced, idling noise vibration and harshness (NVH) performance is enhanced, and the advantages of small-size light weight, low cost, low friction loss and low oil consumption and the like of a three-cylinder machine are ensured.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a balance shaft set and a vehicle with the balance shaft set. Background technique [0002] As of August 2011, the number of cars in the world has exceeded 1 billion. The environmental and resource problems caused by automobiles have also become important factors restricting its development. In an environment that emphasizes automobile energy saving, emission reduction, low-carbon and environmental protection, the three-cylinder engine has become the main trend of current engine research and development due to its advantages such as low fuel consumption, compact structure, and high sound power. [0003] However, the three-cylinder engine has a large vibration, which in turn affects the ride comfort of the vehicle, especially when idling. Aiming at the problem of large vibration at idling speed of the three-cylinder engine, the mainstream practice of major automobile manufactur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/26
Inventor 李明建陈之内真
Owner GREAT WALL MOTOR CO LTD