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Engine balance shaft assembly and engine

A technology for balancing shafts and engines, applied in the field of vehicle parts, can solve the problems of occupying engine space, inconvenient engine layout, complicated crankshaft structure, etc., and achieves the effects of good oil pumping effect, simple structure and simplified layout.

Inactive Publication Date: 2020-08-04
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil pump and the balance shaft are independent of each other. The oil pump is generally of the gear type or the rotor type, and the oil pump is generally driven by the crankshaft, which makes the structure of the crankshaft complex and difficult to install. Moreover, the independent arrangement of the oil pump and the balance shaft will cause problems. Occupies a large space in the engine, which is not convenient for the arrangement of the engine

Method used

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  • Engine balance shaft assembly and engine
  • Engine balance shaft assembly and engine
  • Engine balance shaft assembly and engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment relates to an engine balance shaft assembly, which includes a housing 1 with a first cavity 101 and a balance shaft with two balance shafts 21 rotatably supported on the housing 1 component2. In addition, the engine balance shaft assembly also includes a linkage assembly 3 located in the first cavity 101 to form a synchronous rotation of the two balance shafts 21, and the linkage assembly 3 can also form an oil collection device for oil from the engine cylinder For pumping into the oil channel on the engine block, in addition to the above structure, the engine balance shaft assembly also includes a transmission member 4 for inputting power to the engine balance shaft assembly.

[0037] Based on the above overall structure, a preferred structure of the housing 1 is as follows figure 1 As shown, it specifically includes an upper casing 11 and a lower casing 12, and opposite grooves are configured on the upper casing 11 and the lower casing 12, and the abo...

Embodiment 2

[0051] This embodiment relates to an engine, and the engine balance shaft assembly as described in Embodiment 1 is installed on the engine.

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PUM

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Abstract

The invention provides an engine balance shaft assembly and an engine. The engine balance shaft assembly comprises a shell with a first cavity and two balance shafts which are arranged in parallel androtatably supported on the shell, the two balance shafts are provided with power input ends extending into the first cavity, the engine balance shaft assembly comprises two gears, the two gears correspondingly sleeve the power input ends of the two balance shafts and are meshed with each other, and the meshing rotation of the two gears in the first cavity can form oil pumping of engine oil from an engine oil collecting device to an oil duct of an engine cylinder body. According to the engine balance shaft assembly, the oil pump is formed by linkage gears on the two balance shafts, an independent oil pump is omitted, the structure of a crankshaft in an engine can be simplified, arrangement of the engine is facilitated, and cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle parts, in particular to an engine balance shaft assembly, and the invention also relates to an engine equipped with the engine balance shaft assembly. Background technique [0002] In order to balance the second-order reciprocating inertial force of the inline four-cylinder engine, the engine with relatively high NVH requirements is generally equipped with a balance shaft structure to reduce engine vibration and improve vehicle comfort. An organic oil pump is also arranged in the engine to provide high-pressure oil to form liquid lubrication, reduce the friction resistance of the engine friction pair, and improve the reliability and durability of the engine. [0003] In the prior art, the balance weight of the balance shaft is arranged between cylinders 2 and 3, and there will be a long transition journal between the shaft head of the balance shaft and the balance weight, and between the front end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/02
CPCF01M1/02F01M2001/0238F01M2001/0276
Inventor 马卫平刘刚胡洪涛魏云腾李艳利王红丹
Owner GREAT WALL MOTOR CO LTD
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