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Internal combustion engine piston oil ring groove structure and mounting using method thereof

A technology for piston oil rings and internal combustion engines, which is applied to pistons, mechanical equipment, engine components, etc., can solve the problems of reducing the economical efficiency of internal combustion engines, not being able to circulate in time, increasing maintenance costs of internal combustion engines, etc., achieving good promotion and application value and improving Effects of economical use and simple structure

Inactive Publication Date: 2015-03-25
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There is no oil return hole in the traditional piston oil ring groove, which is not conducive to the circulation of oil in the oil ring groove
There are the following disadvantages: 1. The engine oil is easy to deposit in the oil ring groove, and cannot be circulated in time. The local engine oil is exposed to the heat radiation of the combustion chamber for a long time and is in a high temperature state, which leads to the deterioration and failure of the local engine oil and shortens the replacement of the engine oil. cycle, which increases the maintenance cost of the internal combustion engine; 2. If too much engine oil accumulates in the oil ring groove, the engine oil will easily escape into the combustion chamber, and the oil consumption will increase, reducing the economical efficiency of the internal combustion engine

Method used

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  • Internal combustion engine piston oil ring groove structure and mounting using method thereof
  • Internal combustion engine piston oil ring groove structure and mounting using method thereof

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Embodiment 1

[0019] Embodiment 1, the internal combustion engine is a commonly used power machine, which has been widely used in transportation, industry, agriculture and other fields. Among them, the piston is called the "heart" of the internal combustion engine. It continuously reciprocates in the cylinder and bears the alternating mechanical load and thermal load. It is one of the key components with the worst working conditions in the internal combustion engine. The function of the piston is to bear the pressure of the explosive gas and transmit it to the connecting rod through the piston pin to drive the crankshaft to rotate. The head of the piston has multiple grooves called ring grooves, which are used to install piston rings. The piston generally has two air rings and one oil ring. The main function of the air ring is to ensure the seal between the piston and the cylinder wall and prevent the combustion mixture from entering the crankcase; Lubricate in between, and scrape off exce...

Embodiment 2

[0020] Embodiment 2, the technical scheme of internal combustion engine piston oil ring groove structure of the present invention is described in detail below:

[0021] 1. The piston oil ring groove structure of the internal combustion engine of the present invention is distributed on the third ring groove of the piston head, and is mainly composed of a rectangular groove and an oil return hole.

[0022] 2. Among them, the oil return hole penetrates from the bottom of the third rectangular groove to the inner cavity of the piston body.

[0023] 3. Among them, the cross section of the oil return hole is circular, which is formed by mechanical drilling.

[0024] 4. Among them, the oil return hole leads obliquely downward from the bottom of the third rectangular groove to the inner cavity of the piston, and the included angle between the center line of the oil return hole and the horizontal direction is 5°-75°.

[0025] 5. The number of the above-mentio...

Embodiment 3

[0028] Embodiment 3, below in conjunction with accompanying drawing, further introduce the internal combustion engine piston oil ring groove structure of the present invention through a specific implementation case:

[0029] 1. If figure 1 Shown is the front view of a certain piston, there are three rectangular ring grooves (1, 2, 3) in the head of the piston body (10), the first rectangular ring groove (1) and the second rectangular ring groove The grooves (2) are used to install the gas ring and play the role of sealing; the oil ring groove structure of the internal combustion engine piston of the present invention is distributed on the third rectangular ring groove (3).

[0030] 2. The internal combustion engine piston oil ring groove structure of the present invention is mainly composed of a third rectangular ring groove (3) and an oil return hole (4).

[0031] 3. If figure 1 and figure 2 As shown, the oil return hole (4) penetrates from the bottom of ...

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Abstract

The invention discloses an internal combustion engine piston oil ring groove structure and a mounting using method thereof. The internal combustion engine piston oil ring groove structure is characterized in that the internal combustion engine piston oil ring groove structure is distributed at a third ring groove in the head of a piston and comprises a rectangular groove and an oil returning hole, the oil returning hole penetrates to a piston inner cavity from the bottom of a third rectangular groove, the section of the oil returning hole is in a circular shape, the oil returning hole is formed by mechanical hole drilling machining, the oil returning hole leads to the piston inner cavity from the bottom of the third rectangular groove obliquely downwards, and the included angle between the center line of the oil returning hole and the horizontal direction is 5-75 degrees. The structure is simple, designing is reasonable, the manufacturing technology is good, the phenomenon that engine oil does not flow in the oil ring groove for a long time, so that engine oil is too hot and goes bad is avoided, the problem that too much engine oil is accumulated in the oil ring groove and enters a burning chamber is avoided, engine oil loss of an internal combustion engine can be well lowered, the using economy of the internal combustion engine is improved, and great promotion and application value is achieved.

Description

technical field [0001] The invention belongs to the field of internal combustion engines, and in particular relates to a piston oil ring groove structure of an internal combustion engine, which has a reasonable design, a simple structure, clean oil scraping, is conducive to the oil circulation at the piston oil ring groove, and can effectively reduce the oil consumption of the internal combustion engine. Extends oil change intervals while helping to improve piston and oil ring reliability. Background technique [0002] There is no oil return hole in the traditional piston oil ring groove, which is not conducive to the oil circulation in the oil ring groove. There are the following disadvantages: 1. The engine oil is easy to deposit in the oil ring groove, and cannot be circulated in time. The local engine oil is exposed to the heat radiation of the combustion chamber for a long time and is in a high temperature state, which leads to the deterioration and failure of the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F3/00
CPCF02F3/00
Inventor 陈镇培曹杨军胡国强陈剑涛陆浩李少明王丹
Owner GUANGXI YUCHAI MASCH CO LTD