CN104265401A - Two-way ventilation valve for crankcase of multi-cylinder internal combustion engine with intake system with throttle valve - Google Patents
Two-way ventilation valve for crankcase of multi-cylinder internal combustion engine with intake system with throttle valve Download PDFInfo
- Publication number
- CN104265401A CN104265401A CN201410493003.3A CN201410493003A CN104265401A CN 104265401 A CN104265401 A CN 104265401A CN 201410493003 A CN201410493003 A CN 201410493003A CN 104265401 A CN104265401 A CN 104265401A
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- China
- Prior art keywords
- vent valve
- ventilation valve
- channel
- spring sheet
- handling system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
Abstract
The invention relates to the technical field of engines, in particular to a two-way ventilation valve for a crankcase of a multi-cylinder internal combustion engine with an intake system with a throttle valve. The two-way ventilation valve comprises a ventilation valve body, a ventilation valve upper cover, a ventilation valve lower cover and a ventilation valve connecting pipe. An upper channel, a lower channel and a middle channel are formed in a cavity of the ventilation valve body. The middle channel is connected to the ventilation valve connecting pipe to form an air inlet channel. The upper channel is connected to the ventilation valve upper cover to form a first air outlet channel. The lower channel is connected to the ventilation valve lower cover to form a second air outlet channel. A first spring piece is arranged at the connection portion of the upper channel with the ventilation valve upper cover. A second spring piece is arranged at the connection portion of the lower channel with the ventilation valve lower cover. The first spring piece is connected to a first blocking piece in the direction toward the ventilation valve upper cover. The second spring piece is connected to a second blocking piece in the direction toward the ventilation valve lower cover. The two-way ventilation valve for the crankcase of the multi-cylinder internal combustion engine with the intake system with the throttle valve can meet the requirements of decreasing of lubricating oil consumption and reduction of emission when the internal combustion engine works at low-speed revolution (idling) and low load as well as in the other working conditions.
Description
Technical field
The present invention relates to technical field of engines, particularly relate to a kind of two-way air vent valve of gas handling system band closure multi-cylinder engine crankcase.
Background technique
In prior art, the air-breather of gas handling system band closure multi-cylinder engine is all the suction tude of when pressurized machine (have also before pressurized machine) before crankcase and closure be connected, although the air-breather of the prior art can meet the most work requirement of internal-combustion engine, but, when internal-combustion engine is in the slow-speed of revolution (idling), when low-load work, namely when pressure lower than crankcase of the pressure of suction tude after closure, internal-combustion engine is just in air-breathing link, make the pressure of the pressure ratio crankcase in cylinder low a lot, in this case, just easily make lubricant oil inside crankcase by piston assembly and cylinder liner, the gap of valve and valve guide bushing is drawn into more in cylinder and participates in burning, thus cause the consumption of the lubricant oil of internal-combustion engine to increase, and improve discharge amount.
Summary of the invention
The object of the invention is to the two-way air vent valve that a kind of gas handling system band closure multi-cylinder engine crankcase is provided for deficiency of the prior art, this two-way air vent valve can make internal-combustion engine when the slow-speed of revolution (idling), low-load work, the consumption of lubricant oil reduces, and discharge amount reduces.
For achieving the above object, the present invention is achieved through the following technical solutions.
A kind of two-way air vent valve of gas handling system band closure multi-cylinder engine crankcase is provided, comprises the adapter of ventilation valve body, vent valve upper cover, vent valve lower cover and vent valve;
The inner chamber of described ventilation valve body offers upper channel, lower channel and center-aisle; Described center-aisle and described vent valve are taken over and are connected to form intake duct; Described upper channel is connected to form the first air outlet channel with described vent valve upper cover; Described lower channel is connected to form the second air outlet channel with described vent valve lower cover;
The joint of described upper channel and described vent valve upper cover is provided with the first spring sheet, and the joint of described lower channel and described vent valve lower cover is provided with the second spring sheet; Described ventilation valve body is all close to by described first spring sheet and described second spring sheet;
Described first spring sheet is connected with the first catch towards the direction of described vent valve upper cover, and described second spring sheet is connected with the second catch towards the direction of described vent valve lower cover; Be provided with the first angle between described first catch and described first spring sheet, between described second catch and described second spring sheet, be provided with the second angle.
Described first angle and described second angle are all set to acute angle.
Described first catch and described first spring sheet, described second catch and described second spring sheet are fixed on described ventilation valve body by screw respectively.
Described vent valve upper cover, described ventilation valve body are connected by bolt successively with described vent valve lower cover.
Placement between described vent valve adapter and described ventilation valve body is for being spirally connected.
Pad is provided with between described vent valve upper cover and described ventilation valve body, between described vent valve lower cover and described ventilation valve body.
Described vent valve adapter is provided with flange, is provided with packing ring between described flange and described ventilation valve body.
Described first air outlet channel and described second air outlet channel are one way respectively.
The inlet of described vent valve adapter is connected with crankcase, and the outlet port of described vent valve upper cover is connected with suction tude before closure, and described vent valve lower cover is connected with suction tude after closure.
Pressurized machine is connected with between suction tude before the outlet port of described vent valve upper cover and described closure.
Beneficial effect of the present invention:
(1) two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase provided by the invention, internal-combustion engine can be made when the slow-speed of revolution (idling), low-load work, be not easy to make the lubricant oil inside crankcase be drawn into participation burning in cylinder more by the gap of piston assembly and cylinder liner, valve and valve guide bushing, namely the consumption of lubricant oil can be made to reduce, and discharge amount reduce; In addition, two-way air vent valve of the present invention can also meet internal-combustion engine other requirements under other operating modes.
(2) two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase provided by the invention, after crank case gases through filtering enters the inner chamber of ventilation valve body by vent valve adapter, when the gas pressure of vent valve intracoelomic cavity is greater than the laggard endotracheal gas pressure of closure, the second spring sheet that the joint of lower channel and vent valve lower cover is arranged is opened, thus it is poor to reduce crankcase and the relative pressure of cylinder in breathing process, reduction lubricant oil is inhaled into the amount in cylinder; When the gas pressure of vent valve intracoelomic cavity is less than the laggard endotracheal gas pressure of closure, the second spring sheet that the joint of lower channel and vent valve lower cover is arranged cuts out.Similarly, to advance endotracheal gas pressure when the gas pressure of vent valve intracoelomic cavity is greater than closure, the first spring sheet that the joint of upper channel and vent valve upper cover is arranged is opened, to advance endotracheal gas pressure when the gas pressure of vent valve intracoelomic cavity is less than closure, the first spring sheet that the joint of upper channel and vent valve upper cover is arranged cuts out, thus the consumption of lubricant oil can be reduced, reduce discharge.
(3) two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase provided by the invention, because ventilation valve body is all close to by the first spring sheet and the second spring sheet, therefore, it is possible to air tight when ensureing that backpressure is large.
(4) two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase provided by the invention, has structure simple, can be applicable to the feature of mass production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present invention.
Fig. 2 is the structural representation of the ventilation valve body of the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present invention.
Include in fig. 1 and 2:
1---ventilation valve body, 11---upper channel, 12---lower channel, 13---center-aisle,
2---vent valve upper cover, 21---first air outlet channel,
3---vent valve lower cover, 31---second air outlet channel,
4---vent valve adapter, 41---flange,
5---the first spring sheet,
6---the second spring sheet,
7---first catch, 71---first angle,
8---second catch, 81---second angle,
101---screw, 102---bolt, 103---pad, 104---packing rings.
Embodiment
In order to make technical problem solved by the invention, technological scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Special instruction, the noun of locality of " first " used in the present invention and " second " is that conduct mark is used in order to enumerate embodiment better, and the present invention can not be made to be limited to for this reason.
embodiment 1.
See Fig. 1 and Fig. 2.The two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present embodiment, comprises ventilation valve body 1, vent valve upper cover 2, vent valve lower cover 3 and vent valve adapter 4; The inner chamber of ventilation valve body 1 offers upper channel 11, lower channel 12 and center-aisle 13; Center-aisle 13 is connected to form intake duct with vent valve adapter 4; Upper channel 11 is connected with vent valve upper cover 2 to form the first air outlet channel 21; Lower channel 12 is connected with vent valve lower cover 3 to form the second air outlet channel 31; Wherein, the first air outlet channel 21 and the second air outlet channel 31 are one way respectively, and therefore, the first air outlet channel 21 and the second air outlet channel 31 that are one way are combined as two-way air vent valve of the present invention.
Upper channel 11 is provided with the first spring sheet 5 with the joint of vent valve upper cover 2, and lower channel 12 is provided with the second spring sheet 6 with the joint of vent valve lower cover 3; Ventilation valve body 1 is all close to by first spring sheet 5 and the second spring sheet 6, therefore, it is possible to air tight when ensureing that backpressure is large.
First spring sheet 5 is connected with the first catch 7, second spring sheet 6 and is connected with the second catch 8 towards the direction of vent valve lower cover 3 towards the direction of vent valve upper cover 2; Be provided with between first catch 7 and the first spring sheet 5 between first angle 71, second catch 8 and the second spring sheet 6 and be provided with the second angle 81.Wherein, the first angle 71 and the second angle 81 are all set to acute angle, and in the present embodiment, the first angle 71 and the second angle 81 are 10 degree.
The two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present embodiment, internal-combustion engine can be made when the slow-speed of revolution (idling), low-load work, be not easy to make the lubricant oil inside crankcase be drawn into participation burning in cylinder more by the gap of piston assembly and cylinder liner, valve and valve guide bushing, namely the consumption of lubricant oil can be made to reduce, and discharge amount reduce; In addition, two-way air vent valve of the present invention can also meet internal-combustion engine other requirements under other operating modes.
In the present embodiment, the first catch 7 and the first spring sheet 5, second catch 8 and the second spring sheet 6 are fixed on ventilation valve body 1 by screw 101 respectively, thus are convenient to installation and removal.
In the present embodiment, vent valve upper cover 2, ventilation valve body 1 be connected successively by bolt 102 with vent valve lower cover 3, thus be convenient to vent valve upper cover 2, ventilation valve body 1 be connected with the installation of vent valve lower cover 3 and dismantle.
In the present embodiment, the Placement between vent valve adapter 4 and ventilation valve body 1 is for being spirally connected, thus the connection be convenient between vent valve adapter 4 and ventilation valve body 1 and dismounting.
In the present embodiment, between vent valve upper cover 2 and ventilation valve body 1, between vent valve lower cover 3 and ventilation valve body 1, be provided with pad 103.This pad 103 can ensure the sealability between vent valve upper cover 2 and ventilation valve body 1, between vent valve lower cover 3 and ventilation valve body 1.
In the present embodiment, vent valve adapter 4 is provided with flange 41, and this flange 41 can be convenient to vent valve adapter 4 and be fixedly connected on ventilation valve body 1.Wherein, be provided with packing ring 104 between flange 41 and ventilation valve body 1, this packing ring 104 can ensure the sealability between vent valve adapter 4 and ventilation valve body 1.
In the present embodiment, the inlet of vent valve adapter 4 is connected with crankcase, and the outlet port of vent valve upper cover 2 is connected with suction tude before closure, and vent valve lower cover 3 is connected with suction tude after closure.Therefore, crank case gases through filtering to enter the inner chamber of valve body 1 of ventilating by vent valve adapter 4 after, when the gas pressure of valve body 1 inner chamber of ventilating is greater than the laggard endotracheal gas pressure of closure, the second spring sheet 6 that lower channel 12 is arranged with the joint of vent valve lower cover 3 is opened, thus it is poor to reduce crankcase and the relative pressure of cylinder in breathing process, reduction lubricant oil is inhaled into the amount in cylinder; When the gas pressure of ventilation valve body 1 inner chamber is less than the laggard endotracheal gas pressure of closure, the second spring sheet 6 that lower channel 12 is arranged with the joint of vent valve lower cover 3 cuts out.Similarly, to advance endotracheal gas pressure when the gas pressure of ventilation valve body 1 inner chamber is greater than closure, the first spring sheet 5 that upper channel 11 is arranged with the joint of vent valve upper cover 2 is opened, to advance endotracheal gas pressure when the gas pressure of ventilation valve body 1 inner chamber is less than closure, the first spring sheet 5 that upper channel 11 is arranged with the joint of vent valve upper cover 2 cuts out, thus the consumption of lubricant oil can be reduced, reduce discharge.
embodiment 2.
The embodiment 2 of the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present invention, the difference of the present embodiment and embodiment 1 is, in the present embodiment, before the outlet port of vent valve upper cover 2 and closure, between suction tude, be connected with pressurized machine.Other structure and working principle of the present embodiment is identical with embodiment 1, does not repeat them here.
embodiment 3.
The embodiment 3 of the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present invention, the difference of the present embodiment and embodiment 1 is, in the present embodiment, the first angle 71 and the second angle 81 are 45 degree.Other structure and working principle of the present embodiment is identical with embodiment 1, does not repeat them here.
embodiment 4.
The embodiment 4 of the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase of the present invention, the difference of the present embodiment and embodiment 1 is, in the present embodiment, the first angle 71 and the second angle 81 are 30 degree.Other structure and working principle of the present embodiment is identical with embodiment 1, does not repeat them here.
Finally should be noted that; above embodiment is only for illustration of technological scheme of the present invention but not limiting the scope of the invention; although be explained in detail the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technological scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. a two-way air vent valve for gas handling system band closure multi-cylinder engine crankcase, is characterized in that: comprise the adapter of ventilation valve body, vent valve upper cover, vent valve lower cover and vent valve;
The inner chamber of described ventilation valve body offers upper channel, lower channel and center-aisle; Described center-aisle and described vent valve are taken over and are connected to form intake duct; Described upper channel is connected to form the first air outlet channel with described vent valve upper cover; Described lower channel is connected to form the second air outlet channel with described vent valve lower cover;
The joint of described upper channel and described vent valve upper cover is provided with the first spring sheet, and the joint of described lower channel and described vent valve lower cover is provided with the second spring sheet; Described ventilation valve body is all close to by described first spring sheet and described second spring sheet;
Described first spring sheet is connected with the first catch towards the direction of described vent valve upper cover, and described second spring sheet is connected with the second catch towards the direction of described vent valve lower cover; Be provided with the first angle between described first catch and described first spring sheet, between described second catch and described second spring sheet, be provided with the second angle.
2. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: described first angle and described second angle are all set to acute angle.
3. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: described first catch and described first spring sheet, described second catch and described second spring sheet are fixed on described ventilation valve body by screw respectively.
4. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: described vent valve upper cover, described ventilation valve body are connected by bolt successively with described vent valve lower cover.
5. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: the Placement between described vent valve adapter and described ventilation valve body is for being spirally connected.
6. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: be provided with pad between described vent valve upper cover and described ventilation valve body, between described vent valve lower cover and described ventilation valve body.
7. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: described vent valve adapter is provided with flange, is provided with packing ring between described flange and described ventilation valve body.
8. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, is characterized in that: described first air outlet channel and described second air outlet channel are one way respectively.
9. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 1, it is characterized in that: the inlet of described vent valve adapter is connected with crankcase, the outlet port of described vent valve upper cover is connected with suction tude before closure, and described vent valve lower cover is connected with suction tude after closure.
10. the two-way air vent valve of a kind of gas handling system band closure multi-cylinder engine crankcase according to claim 9, is characterized in that: be connected with pressurized machine between suction tude before the outlet port of described vent valve upper cover and described closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493003.3A CN104265401A (en) | 2014-09-24 | 2014-09-24 | Two-way ventilation valve for crankcase of multi-cylinder internal combustion engine with intake system with throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493003.3A CN104265401A (en) | 2014-09-24 | 2014-09-24 | Two-way ventilation valve for crankcase of multi-cylinder internal combustion engine with intake system with throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265401A true CN104265401A (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410493003.3A Pending CN104265401A (en) | 2014-09-24 | 2014-09-24 | Two-way ventilation valve for crankcase of multi-cylinder internal combustion engine with intake system with throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207259A (en) * | 2020-06-02 | 2022-03-18 | 日产自动车株式会社 | Leak diagnosis method and leak diagnosis device for gas leakage processing device of internal combustion engine |
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| US20030089352A1 (en) * | 2001-10-26 | 2003-05-15 | Tadayuki Yoneyama | Engine breather system |
| CN1580538A (en) * | 2003-08-04 | 2005-02-16 | 本田技研工业株式会社 | Fuel supply control system for engine |
| CN1952358A (en) * | 2006-11-20 | 2007-04-25 | 重庆隆鑫工业（集团）有限公司 | General gasoline engine cylinder head cover |
| CN202900370U (en) * | 2012-11-15 | 2013-04-24 | 中国第一汽车股份有限公司 | Integrated double-check valve structure |
| CN204200305U (en) * | 2014-09-24 | 2015-03-11 | 湖南省力宇燃气动力有限公司 | A kind of two-way air vent valve of gas handling system band closure multi-cylinder engine crankcase |
-
2014
- 2014-09-24 CN CN201410493003.3A patent/CN104265401A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089352A1 (en) * | 2001-10-26 | 2003-05-15 | Tadayuki Yoneyama | Engine breather system |
| CN1580538A (en) * | 2003-08-04 | 2005-02-16 | 本田技研工业株式会社 | Fuel supply control system for engine |
| CN1952358A (en) * | 2006-11-20 | 2007-04-25 | 重庆隆鑫工业（集团）有限公司 | General gasoline engine cylinder head cover |
| CN202900370U (en) * | 2012-11-15 | 2013-04-24 | 中国第一汽车股份有限公司 | Integrated double-check valve structure |
| CN204200305U (en) * | 2014-09-24 | 2015-03-11 | 湖南省力宇燃气动力有限公司 | A kind of two-way air vent valve of gas handling system band closure multi-cylinder engine crankcase |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207259A (en) * | 2020-06-02 | 2022-03-18 | 日产自动车株式会社 | Leak diagnosis method and leak diagnosis device for gas leakage processing device of internal combustion engine |
| CN114207259B (en) * | 2020-06-02 | 2024-01-30 | 日产自动车株式会社 | Leakage diagnosis method and leakage diagnosis device for leakage treatment device of internal combustion engine |
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Application publication date: 20150107 |