Lubricating oil way of automobile engine

A technology of automobile engine and lubricating oil circuit, applied in the direction of pressure lubricating safety device, etc., can solve the problems of hydraulic parts failure, increased bearing wear, etc., to avoid backflow, improve cost performance, and ensure the effect of normal work

Inactive Publication Date: 2009-05-20
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the engine is started, the air in the oil passage cavity is compressed, and the air content in the engine oil increases, causing the hydraulic parts to fail to work, and the bearing wear is aggravated when there is no oil, and other hidden dangers

Method used

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  • Lubricating oil way of automobile engine
  • Lubricating oil way of automobile engine

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] Such as figure 1 As shown, a check valve 1 is provided at the entrance where the main oil passage of the cylinder block enters the main oil passage of the cylinder head.

[0014] Such as figure 2 As shown, the check valve has a valve cylinder body 3, a valve seat body 2, a valve ball 4, and a spring 5. The valve cylinder body 3 is connected to the valve seat body 2, and the valve seat body has an oil inlet. Inside the spool body, a valve ball 4 is set corresponding to the position of the oil inlet. The spring is installed in the spring seat 6, and the side of the spring seat has an oil outlet.

[0015] The one-way valve is affected by three forces: the oil pressure on the upper side of the cylinder head, the elastic force of the spring, and the gravity of the valve ball itself. When the engine is not working, the influence of these three forces causes the valve ball to cling to the valve seat body to close the valve. When the engine starts, the oil pump pumps out t...

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PUM

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Abstract

The invention relates to a lubrication oil path for an automobile engine. The lubrication oil path can effectively avoid the reflux of lubrication oil in a cylinder body oil duct and a cylinder cap oil duct. The technical proposal comprises that according to the lubrication oil path for the automobile engine, the lubrication oil enters a cylinder cap main oil duct via a cylinder body main oil duct; and the lubrication oil path is characterized in that a one-way valve is arranged at the entrance from the cylinder body main oil duct to the cylinder cap main oil duct.

Description

technical field [0001] The invention relates to an automobile engine lubricating oil circuit. Background technique [0002] In the traditional engine lubrication system, after the oil is pumped by the oil pump, it enters the main oil passage of the cylinder head through the main oil passage of the cylinder body, and then enters the oil supply units and hydraulic parts. Long-term oil-free state is allowed, and the air content in the oil needs to be controlled at about 7%. Since the lubricating oil in the cylinder block oil passage and cylinder head oil passage has flowed back to the oil pan due to gravity at the beginning of the engine start, there is no oil or less oil in the oil passage when starting. After the engine is started, the air in the cavity of the oil passage is compressed, and the air content in the engine oil increases, causing the hydraulic parts to fail, and the bearing wear is aggravated in the oil-free state, and other hidden dangers. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/20
Inventor 吴海林夏德刚
Owner CHERY AUTOMOBILE CO LTD
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