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Pressure control valve type engine crankcase ventilator

A technology of crankcase ventilation and pressure control, which is applied in the directions of crankcase ventilation, engine components, machines/engines, etc., and can solve problems such as increasing engine pollution

Active Publication Date: 2010-10-20
东风朝阳朝柴动力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because the combustible mixture and exhaust gas escape into the crankcase, the pressure in the crankcase will increase, and the oil will seep from the crankshaft oil seal, crankcase gasket, etc., especially at high temperatures, the steam of the oil will increase. air pollution from engines

Method used

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  • Pressure control valve type engine crankcase ventilator
  • Pressure control valve type engine crankcase ventilator
  • Pressure control valve type engine crankcase ventilator

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Embodiment Construction

[0008] The structural principles of the present invention will be described in more detail below through embodiments in conjunction with the accompanying drawings. The pressure control valve type engine crankcase ventilation device has a cylinder head cover inner shell 1, a cylinder head cover outer shell 2, an oil filler port 3, a pressure valve seat 4, a support frame 5, a pressure valve body 6, a pressure spring and a spring seat 7, Pressure valve cover 8, outlet pipe 9 etc. A sandwich cylinder head cover 10 can be formed from the cylinder head cover inner shell 1 and the cylinder head cover outer shell 2 . A pressure control valve type ventilation device is composed of a pressure valve seat 4, a support frame 5, a pressure valve body 6, a pressure spring and a spring seat 7, a pressure valve cover 8, and an air outlet pipe 9, and is connected with the cylinder head cover 10 as a whole. The pressure valve seat 4 and the pressure valve body 6 form an inner cavity, and the e...

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Abstract

The invention discloses a device for carrying out oil and gas separation and ventilation on an engine crankcase. A sandwich layer type steam cylinder cover is formed by an outer case and an inner case, a pressure valve seat, a support framework, a valve body of a pressure valve, a pressure spring, a pressure valve cover and an air outlet pipe form an oil and gas separation ventilator, the whole body of the oil and gas separation ventilator is connected with the crankcase, the pressure valve seat and the valve seat of the pressure valve form an inner cavity, the end wall of the inner cavity is provided with an air outlet pipe connected with the air inlet pipe of the engine, the valve body of the pressure valve is fixed on the pressure valve seat, the center of the valve body of the pressure valve is provided with the pressure spring, the support framework is arranged on the valve body of the pressure valve, the pressure valve cover is arranged on the upper end surface of the support framework and is fixed to the pressure valve seat in a sealed way, the upper end of the crankcase is provided with an oil refill opening, and the bottom surface of the pressure valve seat is provided with two small holes communicated with the inner case of the crankcase. The invention recovers and reuses combustible mixed gas and waste gas entering the crankcase, is favorable for improving the economical efficiency of the engine, can reduce the discharge pollution of the engine, and can ensure the stability of the engine oil lubrication of the engine under various work conditions.

Description

technical field [0001] The invention belongs to engine components, in particular to a device for separating and ventilating oil and gas in the crankcase of the engine. Background technique [0002] During the working process of a diesel engine, there is always a part of the combustible gas mixed with air and diesel oil and the exhaust gas discharged from the cylinder into the crankcase through the piston ring. The physical parameters of the oil change. What's more serious is that the exhaust gas contains water vapor and sulfur dioxide, and the water vapor condenses in the engine oil to form foam, which destroys the oil supply. This phenomenon is especially serious in winter. Sulfur dioxide meets water to form sulfurous acid, and sulfurous acid meets oxygen in the air to form sulfuric acid. The appearance of these acidic substances not only deteriorates the engine oil, but also corrodes the parts. In addition, because the combustible mixture and exhaust gas escape into the ...

Claims

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Application Information

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IPC IPC(8): F01M13/04
Inventor 李晓刚张宏辉吴广仓陈玉荣
Owner 东风朝阳朝柴动力有限公司
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