CN103334816A - Gas inlet pipe with anti-freezing structure and breathing system - Google Patents
Gas inlet pipe with anti-freezing structure and breathing system Download PDFInfo
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- CN103334816A CN103334816A CN2013103026850A CN201310302685A CN103334816A CN 103334816 A CN103334816 A CN 103334816A CN 2013103026850 A CN2013103026850 A CN 2013103026850A CN 201310302685 A CN201310302685 A CN 201310302685A CN 103334816 A CN103334816 A CN 103334816A
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- oil
- arm
- communicated
- gas
- air inlet
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- 238000007710 freezing Methods 0.000 title claims abstract description 10
- 230000029058 respiratory gaseous exchange Effects 0.000 title abstract description 5
- 210000002345 respiratory system Anatomy 0.000 claims description 15
- 238000000926 separation method Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 239000007789 gas Substances 0.000 description 20
- 239000010721 machine oil Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
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Abstract
The invention discloses a gas inlet pipe with an anti-freezing structure and a breathing system. The upper end of an gas inlet straight pipe is a gas inlet end connected with the gas outlet of a cylinder cover; the lower end of the gas inlet straight pipe is an oil return end connected with an oil pan; a first branch pipe and a second branch pipe are also arranged on the gas inlet straight pipe respectively; the first branch pipe is communicated with the gas inlet straight pipe and used for communicating the gas inlet end of an oil-gas separator; the second branch pipe is used for communicating the oil return end of the oil-gas separator. After the gas inlet pipe provided by the invention is applied in the breathing system, gas generated in a crankcase rises into the cylinder cover through a passage, gas flowing out of the cylinder cover enters the gas inlet straight pipe and then enters the oil-gas separator through the first branch pipe, and oil enters the oil pan through the oil return end; the gas entering the oil-gas separator is separated and then enters the oil pan through the second branch pipe and the oil return end so as to realize oil-gas separation; water formed in the oil-gas separator can also flow back into the oil pan through the second branch pipe, so that the pipeline of the breathing system is free of the risk of water accumulation so as to avoid icing in winter.
Description
Technical field
The present invention relates to a kind of suction tude, more precisely, relate to a kind of deaerator suction tude with anti-freezing structure.
Background technique
The respiratory system of diesel engine is also referred to as crankcase ventilation system, and this system makes crank case gases communicate with atmosphere and carries out " breathing ".Respiratory system simply can be divided into two kinds of open type respiratory system and rebreathers.The open type respiratory system be with crank case gases directly or after simple Oil-gas Separation discharged to atmosphere; Rebreather is crank case gases to be incorporated into air inlet pipeline mix with fresh air, enters the firing chamber then and burns.Rebreather is PCV system (PCV system) again.Along with the increasingly stringent of Abgasgesetz, at present, the petrol engine mandatory requirement adopts PCV system, and diesel engine does not have the laws and regulations requirement of this respect, but in order to improve the performance of diesel engine, the respiratory system of enclosed has begun to adopt in many producers.
In order to improve the Oil-gas Separation efficient of crank case gases, arrange deaerator at motor.With reference to figure 1, at present the respiratory system of turbo-charging diesel motor comprises valve mechanism cover 1, ventilation duct 2, vent hose assembly 3, bumping type deaerator assembly 4, oil return hose 5, deaerator support 6, and bumping type deaerator assembly 4 is fixedly mounted on the intake manifold 7 by deaerator support 6.The Oil-gas Separation dividing plate is installed in the valve mechanism cover 1, mazy type space of the inner formation of Oil-gas Separation dividing plate and valve mechanism cover, one end of vent hose assembly is connecting the ventilation duct 2 that is installed on the valve mechanism cover 1, and the other end is being communicated with the suction port of bumping type deaerator assembly 4; One end of oil return hose 5 is being communicated with the return opening of bumping type deaerator assembly 4, and the other end is being communicated with oil sump 9.The return opening of bumping type deaerator assembly 4 is at least 320mm apart from the height of oil sump machine oil liquid level, and the machine oil that bumping type deaerator assembly 4 is separated is back to below the oil sump machine oil liquid level.
The suction port of above-mentioned bumping type deaerator is in separator lower end, and separator arrangement is on complete machine the time, and there is one section U-shaped structure in the deaerator suction tude, and this structure has possibility of water storage, in the environment of cold, has icing risk.
Summary of the invention
The present invention provides a kind of suction tude with anti-freezing structure in order to solve problems of the prior art.
In order to realize above-mentioned purpose, technological scheme of the present invention is: a kind of suction tude with anti-freezing structure, comprise the air inlet straight tube, and the upper end of described air inlet straight tube is for connecting the inlet end of cylinder head air outlet, and the lower end is for connecting the oil revolving end of oil sump; On described air inlet straight tube, also be respectively equipped with first arm that is used for being communicated with the deaerator inlet end that is communicated with the air inlet straight tube, second arm that is used for being communicated with the deaerator oil revolving end.
Preferably, described first arm is positioned at the top of second arm.
Preferably, described first arm and/or second arm are tilted obliquely by connecting end to its free end of itself and air inlet straight tube.
Preferably, described air inlet straight tube comprises first inner chamber and second inner chamber of connection from top to bottom successively, and the internal diameter of described first inner chamber is greater than second inner chamber, and first arm is communicated to first inner chamber, and second arm is communicated to second inner chamber.
Preferably, the sidewall of described air inlet straight tube is provided with for fixing mounting bracket.
The present invention also provides a kind of respiratory system, comprises suction tude, also comprises being provided with cylinder head, deaerator, the oil sump that is positioned at the crankcase upper end, and the inlet end of the air outlet of described cylinder head and air inlet straight tube is communicated with; The oil revolving end of the entrance of oil sump and air inlet straight tube is communicated with; The suction port end of deaerator and first arm are communicated with; The oil revolving end of deaerator and second arm are communicated with.
After suction tude of the present invention is applied in the respiratory system, crank case gases generates the back and is risen in the valve mechanism cover by passage, the gas that comes out from cylinder head enters into the air inlet straight tube, and gas enters into deaerator through first arm, and oil then enters into oil sump by oil revolving end; Enter into the gas of deaerator through after separating, by entering into oil sump by second arm, oil revolving end, realized Oil-gas Separation, and the water that forms in the deaerator also can flow back in the oil sump through second arm, making in this respiratory system pipeline does not have the risk of water, and then has avoided freezing of winter.
Description of drawings
Fig. 1 shows the layout plan of respiratory system in the prior art.
Fig. 2 shows the sectional drawing of suction tude of the present invention.
Embodiment
For the technical problem that the present invention is solved, the technological scheme of employing, the technique effect easy to understand of obtaining, the accompanying drawing below in conjunction with concrete is described further the specific embodiment of the present invention.
With reference to figure 2, a kind of suction tude with anti-freezing structure provided by the invention, it is three-way pipe, comprises that integral body is the air inlet straight tube of " 1 " font, the upper end of described air inlet straight tube is for connecting the inlet end 10 of crankcase air outlet, and the lower end is for connecting the oil revolving end 13 of oil sump; On described air inlet straight tube, also be respectively equipped with first arm 15 that is used for being communicated with the deaerator inlet end that is communicated with the air inlet straight tube, second arm 16 that is used for being communicated with the deaerator oil revolving end.
After suction tude of the present invention was applied in the respiratory system, the inlet end of the air outlet of cylinder head and air inlet straight tube was communicated with; The oil revolving end of the entrance of oil sump and air inlet straight tube is communicated with; The suction port end of deaerator and first arm are communicated with; The oil revolving end of deaerator and second arm are communicated with.
Crank case gases generates the back and is risen in the valve mechanism cover by passage, and the gas that comes out from valve mechanism cover enters into the air inlet straight tube, and gas enters into deaerator through first arm 15, and oil then enters into oil sump by oil revolving end 13; Enter into the gas of deaerator through after separating, by entering into oil sump by second arm 16, oil revolving end, realized Oil-gas Separation, and the water that forms in the deaerator also can flow back in the oil sump through second arm 16, making in this respiratory system pipeline does not have the risk of water, and then has avoided freezing of winter.
The present invention preferably, described first arm 15 is positioned at the top of second arm 16, enters into deaerator to prevent the oil after deaerator separates again through first arm 15.Described first arm 15 and/or second arm 16 are tilted obliquely by connecting end to its free end of itself and air inlet straight tube, and the efficient of Oil-gas Separation can be provided.
Further, described air inlet straight tube comprises first inner chamber 11 and second inner chamber 12 of connection from top to bottom successively, and the internal diameter of described first inner chamber 11 is greater than second inner chamber 12, and first arm 15 is communicated to first inner chamber, 11, the second arms 16 and is communicated to second inner chamber 12.First inner chamber 11 and second inner chamber 12 that internal diameter differs have formed variable section structure in its joint, can reduce the resistance of oil gas circulation.
Air inlet straight tube of the present invention can be fixed in the respiratory system by the mounting bracket 14 of its sidewall setting.
The present invention is by preferred embodiment having carried out detailed explanation.Yet, by to the studying carefully of preamble, to the variation of each mode of execution with to increase also be that one of ordinary skill in the art institute is apparent.Being intended that all these variations and increasing of claimant all dropped in the scope that claim of the present invention protects.
Similar numbering refers to similar element in the whole text.For the purpose of clear, the situation that some line, layer, element, parts or feature are amplified may be arranged in the accompanying drawings.
Term used herein is only for to be illustrated specific embodiment, and it is not to be intended to limit the invention.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with one of ordinary skill in the art's of the present invention understanding.
Claims (6)
1. suction tude with anti-freezing structure is characterized in that: comprise the air inlet straight tube, the upper end of described air inlet straight tube is for connecting the inlet end of cylinder head air outlet, and the lower end is for connecting the oil revolving end of oil sump; On described air inlet straight tube, also be respectively equipped with first arm that is used for being communicated with the deaerator inlet end that is communicated with the air inlet straight tube, second arm that is used for being communicated with the deaerator oil revolving end.
2. suction tude according to claim 1, it is characterized in that: described first arm is positioned at the top of second arm.
3. suction tude according to claim 1 is characterized in that: described first arm and/or second arm are tilted obliquely by connecting end to its free end of itself and air inlet straight tube.
4. suction tude according to claim 3, it is characterized in that: described air inlet straight tube comprises first inner chamber and second inner chamber of connection from top to bottom successively, the internal diameter of described first inner chamber is greater than second inner chamber, and first arm is communicated to first inner chamber, and second arm is communicated to second inner chamber.
5. according to each described suction tude of claim 1 to 4, it is characterized in that: the sidewall of described air inlet straight tube is provided with for fixing mounting bracket.
6. a respiratory system comprises as each described suction tude of claim 1 to 5, also comprises being provided with cylinder head, deaerator, the oil sump that is positioned at the crankcase upper end, it is characterized in that: the inlet end of the air outlet of described cylinder head and air inlet straight tube is communicated with; The oil revolving end of the entrance of oil sump and air inlet straight tube is communicated with; The suction port end of deaerator and first arm are communicated with; The oil revolving end of deaerator and second arm are communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103026850A CN103334816A (en) | 2013-07-18 | 2013-07-18 | Gas inlet pipe with anti-freezing structure and breathing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103026850A CN103334816A (en) | 2013-07-18 | 2013-07-18 | Gas inlet pipe with anti-freezing structure and breathing system |
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| Publication Number | Publication Date |
|---|---|
| CN103334816A true CN103334816A (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103026850A Pending CN103334816A (en) | 2013-07-18 | 2013-07-18 | Gas inlet pipe with anti-freezing structure and breathing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431653A (en) * | 2020-12-16 | 2021-03-02 | 中船广西船舶及海洋工程有限公司 | Oil-gas separator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463743A (en) * | 2008-12-16 | 2009-06-24 | 奇瑞汽车股份有限公司 | Crankcase ventilation system |
| CN201826926U (en) * | 2010-09-28 | 2011-05-11 | 安徽江淮汽车股份有限公司 | Breathing system of 2.8L turbocharging diesel motor |
| CN203362267U (en) * | 2013-07-18 | 2013-12-25 | 安徽江淮汽车股份有限公司 | Air inlet pipe with anti-freezing structure and respiratory system |
-
2013
- 2013-07-18 CN CN2013103026850A patent/CN103334816A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463743A (en) * | 2008-12-16 | 2009-06-24 | 奇瑞汽车股份有限公司 | Crankcase ventilation system |
| CN201826926U (en) * | 2010-09-28 | 2011-05-11 | 安徽江淮汽车股份有限公司 | Breathing system of 2.8L turbocharging diesel motor |
| CN203362267U (en) * | 2013-07-18 | 2013-12-25 | 安徽江淮汽车股份有限公司 | Air inlet pipe with anti-freezing structure and respiratory system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431653A (en) * | 2020-12-16 | 2021-03-02 | 中船广西船舶及海洋工程有限公司 | Oil-gas separator |
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Application publication date: 20131002 |