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Pump device for driving blow-by gas

A pump device and side channel technology, which is applied to the components of the pumping device for elastic fluid, the pump device, the pump, etc., can solve the problems of the maximum negative pressure limit and the pressure difference limit, and achieve the effect of improving the efficiency.

Inactive Publication Date: 2018-05-11
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure difference that can be achieved in this way is limited because the maximum negative pressure that can be generated is limited

Method used

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  • Pump device for driving blow-by gas
  • Pump device for driving blow-by gas
  • Pump device for driving blow-by gas

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0061] exist figure 1 The crankcase ventilation device 10 shown in FIG. 1 is used to ventilate a crankcase 12 of an internal combustion engine 14 . In this case, the blow-by gas 32 is removed from the crankcase 12 and does not contain oil mist, and is supplied to the intake passage 16 of the internal combustion engine 14 . The crankcase ventilation device has a pump device 18 comprising a side channel compressor 20 driven by a drive unit 22 and an oil mist separator 24 comprising an inertial based Oil mist separator 26, such as impactor 28. Furthermore, the crankcase ventilation device 10 has a pressure regulating valve 30 which prevents the pressure in the crankcase 12 from dropping too much or even absorbing oil.

[0062] The crankcase ventilation device 10 is arranged in such a way that the blow-by air 32 from the crankcase 12 is initially directed to the pressure regulating valve 30 and then flows through and is driven by the pump means 18 , then the compressed blow-by a...

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PUM

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Abstract

The invention relates to a pump device for driving blow-by gas (32) in a crankcase ventilation apparatus (10) comprising a side channel compressor (20) having a housing (44) which has a conveying chamber (46), a liquid inlet (48), and a liquid outlet (50), having an impeller (52) which has blades (56) on the radial outside and which is rotatably mounted in the housing (44), wherein the blades (56)are in the conveying chamber (46), having a shaft (58), which is rotatably mounted about a rotation axis (60) and to which the impeller (52) is held to the shaft (58) in a rotationally fixed manner,wherein the conveying chamber (46) has at least one side channel (62, 64, 66) which extends axially adjacent to the blades (56) and connects the liquid inlet (48) and the liquid outlet (50) to each other.

Description

technical field [0001] The invention relates to a pump arrangement for driving blow-by air in a crankcase ventilation device comprising a side channel compressor with a housing with a transfer chamber, a fluid inlet and a fluid outlet with an impeller having blades radially on the outside and rotatably mounted in the housing, wherein the blades are located in the transfer chamber and having a shaft rotatably mounted about a rotational axis on which the impeller is fastened , wherein the transfer chamber has at least one side channel which extends in the region of the blade and connects the fluid inlet and the fluid outlet to one another. Furthermore, the invention relates to an oil separator with such a pump device and to a crankcase ventilation device with such an oil separator. Background technique [0002] Most motor vehicles are fitted with an internal combustion engine, usually provided to provide propulsion for the vehicle. Such an internal combustion engine preferab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M13/00F01M13/02
CPCF01M13/02F01M2013/026F04D23/008F04D29/706F04D25/04B01D45/08F01M11/0004F01M13/021F01M13/04F01M2013/0427F04D25/045F04D29/284
Inventor 阿尔弗雷德·埃尔泽塞尔沃尔克·科尔施耐尔托马斯·里迈斯特凡·鲁佩尔
Owner MAHLE INT GMBH