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A composite piston and engine

A compound and piston technology, applied to engine components, machines/engines, pistons, etc., can solve problems such as short life, easy deformation, and insufficient mechanical properties of aluminum alloy materials, so as to improve service life, enhance overall structural strength and Stiffness, the effect of increasing the strength of the overall structure

Active Publication Date: 2022-06-21
AVL LIST TECHN CENT SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aluminum alloy materials have the advantages of low density, light weight, and good heat transfer, but the mechanical properties of aluminum alloy materials are slightly insufficient under higher mechanical loads, especially the tensile strength and compressive strength, resulting in The mechanical properties of the piston are short in actual work and prone to deformation

Method used

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  • A composite piston and engine
  • A composite piston and engine
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Embodiment Construction

[0035] The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0037] Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely...

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Abstract

The invention relates to the technical field of gasoline engines, and discloses a composite piston and an engine. The composite piston includes a piston body, the piston body is made of aluminum alloy; a pin seat reinforcing block, the strength and rigidity of the pin seat reinforcing block are higher than that of the piston body, A reinforcement block is arranged inside the piston body, and a pin hole is arranged on the pin seat reinforcement block, and the shape of the end face of the pin seat reinforcement block near the combustion chamber is at least partly the same as the shape of the impacted surface of the piston body consistent. The composite piston of the present invention can greatly increase the strength and rigidity of the piston without greatly increasing the weight of the piston. The engine includes the compound piston. The engine includes the compound piston.

Description

technical field [0001] The invention relates to the technical field of gasoline engines, in particular to a composite piston and an engine. Background technique [0002] In order to achieve higher thermal efficiency and lower fuel consumption, the new generation of gasoline engines are adopting higher and higher compression ratios. While higher compression ratio brings higher thermal efficiency to gasoline engine, it also brings greater gas burst pressure to the piston, which will subject the piston to higher mechanical load and thermal deformation. Among them, the piston pin seat is the part that bears the most frequent alternating load, and is usually the part with the greatest stress. At present, the pistons of gasoline engines are all made of aluminum alloy. When the stress of the piston pin seat is too large, the stress can only be reduced by widening or thickening the piston pin seat. [0003] Aluminum alloy materials have the advantages of low density, light weight,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F3/00
CPCF02F3/0015F02F3/0084
Inventor 李伟
Owner AVL LIST TECHN CENT SHANGHAI
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