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Piston assembly with weight reducing structure

A piston assembly, piston technology, applied in the direction of piston, engine components, machine/engine, etc., can solve problems such as cylinder pulling, jamming, piston pin and pin hole wear, etc., to reduce relative wear, relatively light weight, easy to lubricate Effect

Inactive Publication Date: 2017-02-15
BRILLIANCE AUTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, fewer and fewer semi-floating connections are used, and more and more full-floating connections are used. When the engine is working, the piston pin and the pin hole wear the most severely. Pull cylinder

Method used

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  • Piston assembly with weight reducing structure
  • Piston assembly with weight reducing structure
  • Piston assembly with weight reducing structure

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Embodiment Construction

[0019] To make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the following is attached figure 1 The present invention will be further described in detail with specific embodiments.

[0020] In the weight-reducing structure of the piston assembly in this embodiment, the piston includes a piston body 1 with a steel integral structure and a sleeve 8 made of aluminum alloy. The piston body 1 has an upper groove 3 and a pin seat 13, and the sleeve 8 There is a lower groove 7 on the upper side, and a molybdenum disulfide coating 16 is also provided outside the sleeve 8, which can reduce initial wear. The piston body 1, the combustion chamber 2 and the cylinder head constitute the engine combustion chamber 2, and the gas is burned in the engine combustion chamber 2.

[0021] The sleeve 8 is sleeved outside the piston body 1, two opposite pin holes 15 are provided on the pin seat 13, two opposite pin holes 17 are provided on ...

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PUM

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Abstract

The invention discloses a piston assembly with a weight reducing structure, and relates to a piston of an automobile engine. According to the piston assembly with the weight reducing structure, the piston comprises a piston body and a sleeve, wherein the piston body is provided with an upper groove and a pin base, the sleeve is provided with a lower groove, and the piston body is sleeved with the sleeve in a connected manner. A pin hole in the pin base communicates with a pin hole in the sleeve, the upper groove communicates with the lower groove so that a cooling oil cavity can be formed, and lubrication is convenient. In addition, the piston with the structure further has the beneficial effects of being high in strength, small in relative mass, good in cooling effect and convenient to assemble, full floating connection is adopted, and relative abrasion is better reduced.

Description

Technical field [0001] The invention relates to a piston of an automobile engine, in particular to a piston assembly with a weight reduction structure. Background technique [0002] At present, in the automobile engine and other machinery industries, the commonly used materials for piston manufacturing include aluminum alloy, cast iron, and steel, among which aluminum alloy is the most widely used. The aluminum alloy blank can be formed by casting, and the finished piston can be obtained after machining. For high-power direct-injection diesel engines, most of the materials are cast iron materials, and the same materials are used for molding. Only strength performance is considered, and weight reduction, cooling and cooling are not considered. lubricating. However, the future development trend is to ensure high power output, low fuel consumption, and under the premise of satisfying reliability, lighter weight and less friction loss. [0003] In the piston connecting rod assembly, ...

Claims

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Application Information

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IPC IPC(8): F02F3/22
CPCF02F3/22F02F3/0015
Inventor 赵世来黄昌瑞李振华
Owner BRILLIANCE AUTO
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