Crankshaft structure of straight-eight engine

Abstract

The invention discloses a crankshaft structure of a straight-eight engine. The two ends of a crankshaft are the free end and the power output end. A first crank throw, a second crank throw, a third crank throw, a fourth crank throw, a fifth crank throw, a sixth crank throw, a seventh crank throw and an eighth crank throw are arranged in sequence from the free end to the power output end. Projections from the free end to the power end are the projections of the first crank throw and the eighth crank throw which are mutually parallel, the projections of the third crank throw and the sixth crank throw which are mutually parallel, the projections of the second crank throw and the seventh crank throw which are mutually parallel and the projections of the fourth crank throw and the fifth crank throw which are mutually parallel in sequence in the clockwise direction. The firing order of the crankshaft is the first crank throw, the fifth crank throw, the seventh crank throw, the third crank throw, the eighth crank throw, the fourth crank throw, the second crank throw and the sixth crank throw. The firing order of the crankshaft structure is beneficial for lowering the torsional vibration amplitude of a crankshaft system and improving the strength and the torsional vibration resistance of the crankshaft.

Description

technical field [0001] The invention relates to the field of engines, in particular to a crankshaft structure of an inline eight-cylinder engine. Background technique [0002] The torsional vibration amplitude of the crankshaft of the existing in-line eight-cylinder engine is large, and the strength performance of the crankshaft is poor, and the oil supply capacity of the eight-cylinder crankshaft is poor, and the oil passage is not easy to arrange and process. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. Contents of the invention [0004] The object of the present invention is to provide a crankshaft structure of an inline eight-cylinder engine, so as to overcome the existing shortcomings of the cran...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a crankshaft structure of an in-line eight-cylinder engine, thereby overcoming the shortcomings of the existing crankshaft with large torsional vibration amplitude and poor strength performance

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