Respirator with crankcase pressure adjusting device and diesel engine
A technology of pressure regulation and respirator, which is applied in the direction of machines/engines, engine components, crankcase ventilation, etc. It can solve the problems of increased pollutants and engine emissions that cannot meet the standards, so as to improve efficiency, avoid abnormal emissions, and improve oil and gas separation. efficiency effect
Pending Publication Date: 2020-08-07
苏州达菲特过滤技术股份有限公司
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- Application Information
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Problems solved by technology
The pressure control valve is used to adjust the pressure of the crankcase to avoid the clogging of the oil-air separator and cause the pressure in the crankcase to rise; but when the pressure control valve is opened, the pollutants emitted by the engine will increase significantly, and even cause the engine to fail to meet the emission standards
Method used
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Embodiment 1
[0034] This embodiment relates to a diesel engine, which is equipped with figure 2 The shown respirator with crankcase pressure regulating device, the respirator with crankcase pressure regulating device includes a gas mixing zone, an oil-gas separation zone and an oil return zone arranged in sequence.
[0035] The gas mixing area includes the respirator end cap 2. The top of the respirator end cap 2 is closed by the upper end cap 1. The upper end cap 1 is designed with two hanging ears for easy disassembly, which improves the convenience of subsequent maintenance and replacement. The bottom of the respirator end cap 2 is connected to the The oil-gas separation area is sealed and fixed, and the side wall of the respirator end cover 2 is preferably provided with a side air pipe 15 .
[0036] The side air pipe 15 is socketed with the crankcase gas blow-by air pipe 7 and sealed by the sealing ring 13; Therefore, the assembly angle of the crankcase blow-by air pipe 7 and the sid...
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The invention discloses a respirator with a crankcase pressure adjusting device and a diesel engine, and belongs to the technical field of diesel engines. The respirator with the crankcase pressure adjusting device comprises a gas mixing area, an oil-gas separation area and an oil return area which are sequentially arranged. The gas mixing area is provided with a crankcase blow-by gas pipe and a flow guide piece; the crankcase blow-by gas pipe is connected with a pressure adjusting device, and the part, extending into the crankcase blow-by gas pipe, of the pressure adjusting device is providedwith a reduced runner; a plurality of flow guide blades extend from the flow guide piece to the oil-gas separation area; the oil-gas separation area is provided with an oil-gas separator and a filtered gas outlet, and the guide blades extend into a flow channel in the oil-gas separator; and an oil return hole is formed in the oil return area. According to the respirator with the crankcase pressure adjusting device, automatic adjustment of the pressure of the crankcase is achieved through the design of the reduced flow channel in the pressure adjusting device, and the pollutant discharge stability of the diesel engine is guaranteed.
Description
technical field [0001] The invention relates to a technique in the field of diesel engines, in particular to a respirator with a crankcase pressure regulating device and a diesel engine. Background technique [0002] The emission pollutants of diesel engines are mainly the combustion exhaust gas and crankcase blow-by gas directly discharged from the exhaust pipe. The control has achieved remarkable results; after controlling the combustion exhaust gas directly discharged from the exhaust pipe, the proportion of the particulate matter in the crankcase blow-by gas to the total emission of the diesel engine increases accordingly, and to further reduce pollutant emissions, It is necessary to control the blow-by of the crankcase. [0003] Crankcase blow-by refers to the combustible mixture and burned gas that leaks from the combustion chamber into the crankcase through the gap between the piston group and the cylinder during the compression, combustion and expansion process when...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01M13/02F01M13/04
CPCF01M13/028F01M13/04F01M2013/0438
Inventor 朱晓明陈卫
Owner 苏州达菲特过滤技术股份有限公司