CN203614166U - Safety valve for crankcase ventilation system of engine and engine with safety valve - Google Patents
Safety valve for crankcase ventilation system of engine and engine with safety valve Download PDFInfo
- Publication number
- CN203614166U CN203614166U CN201320674946.7U CN201320674946U CN203614166U CN 203614166 U CN203614166 U CN 203614166U CN 201320674946 U CN201320674946 U CN 201320674946U CN 203614166 U CN203614166 U CN 203614166U
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- safety valve
- safety
- sealed department
- ventilation system
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Abstract
The utility model discloses a safety valve for a crankcase ventilation system of an engine and an engine with the safety valve. The safety valve comprises a valve body and a valve, wherein an air inlet, an air outlet and a safety exhaust port are formed in the valve body, and the air inlet and the air outlet are connected; the valve is arranged between the safety exhaust port and the air inlet and can be switched between a first position and a second position, the safety exhaust port and the air inlet are disconnected when the valve is located in the first position, and the safety exhaust port and the air inlet are connected when the valve is located in the second position. According to the safety valve provided by the utility model, one safety exhaust port is additionally formed in the valve body, gas pressure accumulated in the safety valve can be increased when the air outlet is plugged, and the valve is opened to discharge gas in the safety valve from the safety exhaust port in time, thereby preventing potential safety hazard caused by excessive gas pressure in the safety valve.
Description
Technical field
The utility model relates to breathing of engine system field, more specifically, relates to a kind of safety valve of the crankcase ventilation system for motor and has its motor.
Background technique
Crankcase ventilation (breathing) system of motor, main effect be by the waste gas that is leaked to crankcase in cylinder in engine operation process (containing a large amount of water vapour, atomization machine oil, carbon dioxide, hydrocarbon etc.) filter, separation, cooling, gas is offered to the gas handling system of motor, make crankcase pressure keep lower level.Because containing a large amount of water vapour in waste gas, gas and oil separating plant outlet pipe very easily freezes compared with low in the situation that at temperature and stops up, traditional respiratory system does not arrange safety valve, after pipeline blockage, in crankcase, waste gas can not be discharged in time, and crankcase pressure can continue to raise, and pressure rising can cause crankcase inner engine oil to reveal in a large number from sealed faying face and machine oil pipe, when serious, cause engine misses failure problems, have potential safety hazard.
Model utility content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, an object of the present utility model is to propose a kind of safety valve of simple in structure, the safe crankcase ventilation system for motor.
Another object of the present utility model is to propose a kind of motor of the safety valve with the above-mentioned crankcase ventilation system for motor.
According to the safety valve of the crankcase ventilation system for motor of the utility model first aspect, comprising: valve body, described valve body is provided with suction port, air outlet and emergency vent, described suction port and the conducting of described air outlet; And valve, described valve is located between described emergency vent and described suction port, described valve is changeable between primary importance and the second place, when described valve is positioned at described primary importance, described emergency vent and described suction port disconnect, when described valve is positioned at the described second place, described emergency vent and described suction port conducting.
According to the safety valve of the crankcase ventilation system for motor of the present utility model, by increase an emergency vent on valve body, and by the opening and closing of valve control emergency vent, in the time that air outlet is blocked, the gas pressure being deposited in safety valve increases, thereby promotion valve open, can discharge the gas in safety valve in time from emergency vent, avoided the excessive potential safety hazard causing of safety valve internal air pressure.
In addition, according to the safety valve of the crankcase ventilation system for motor of the present utility model, can also there is following additional technical characteristics:
According to an embodiment of the present utility model, the safety valve of the described crankcase ventilation system for motor also comprises: valve gap, described valve gap is located on described valve body, described valve body is provided with the valve port with described valve gap conducting, described emergency vent be located on described valve gap and with described valve gap conducting, described valve is located in described valve gap movably to open and close described valve port.
Alternatively, in described valve gap, be provided with limited post, be formed with the unlimited receiving cavity in one end in described limited post, described valve comprises: slide part, and described slide part is located in described receiving cavity slidably; And sealed department, described sealed department is connected with described slide part, described sealed department is being opened the open position of described valve port and is being closed between the closed position of described valve port changeable, and when described valve is positioned at described primary importance, described sealed department is positioned at described closed position, when described valve is positioned at the described second place, described sealed department is positioned at described open position.
Further, described slide part is formed as column, and described sealed department is formed as round table-like, and the diameter of described sealed department is greater than the diameter of described slide part and the diameter of described valve port.
According to an embodiment of the present utility model, the safety valve of the described crankcase ventilation system for motor also comprises: elastic component, described elastic component be located on described limited post and be only against described valve gap and described sealed department between.
Alternatively, the periphery of described sealed department is provided with seal ring.
Alternatively, described slide part and described sealed department are integrally formed.
According to an embodiment of the present utility model, described valve body is formed as straight tube-like, and the axis of described emergency vent is perpendicular to the axis of described valve body.
Alternatively, described valve gap and described valve body are integrally formed.
According to the motor of the utility model second aspect, comprising: engine crankcase, described engine crankcase is provided with the first import and the first outlet; Gas and oil separating plant, described gas and oil separating plant is provided with the second import and the second outlet, and described the second import is connected with described the first outlet; Safety valve, described safety valve is according to the safety valve of the crankcase ventilation system for motor described in above-described embodiment, the suction port of described safety valve and described the second outlet conducting, described emergency vent and extraneous conducting; And gas handling system, the air outlet conducting of described gas handling system and described safety valve.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming embodiment's description obviously and easily, wherein:
Fig. 1 is according to the partial sectional view of the utility model embodiment's safety valve;
Fig. 2 is the valve port closed condition schematic diagram according to the utility model embodiment's safety valve;
Fig. 3 is the valve port open mode schematic diagram according to the utility model embodiment's safety valve;
Fig. 4 is the assembling schematic diagram according to the utility model embodiment's safety valve.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, orientation or the position relationship of the indications such as term " " center ", " length ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure with operate, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
First specifically describe by reference to the accompanying drawings below according to the safety valve of the utility model first aspect embodiment's the crankcase ventilation system for motor.
As shown in Figure 1 to Figure 3, comprise valve body 10 and valve 20 according to the safety valve of the utility model embodiment's the crankcase ventilation system for motor.
Particularly, valve body 10 is provided with suction port 11, air outlet 12 and emergency vent 13, suction port 11 and air outlet 12 conductings.Valve 20 is located between emergency vent 13 and suction port 11, valve 20 is changeable between primary importance and the second place, and when valve 20 is positioned at described primary importance, emergency vent 13 disconnects with suction port 11, when valve 20 is positioned at the second place, emergency vent 13 and suction port 11 conductings.
Thus, according to the safety valve of the utility model embodiment's the crankcase ventilation system for motor, by increase an emergency vent 13 on valve body 10, and control the opening and closing of emergency vent 13 by valve 20, in the time that air outlet 12 is blocked, the gas pressure being deposited in safety valve increases, and opens thereby promote valve 20, gas in safety valve can be discharged from emergency vent 13 in time, avoided the excessive potential safety hazard causing of safety valve internal air pressure.
It should be noted that, the structure of valve 20 on valve body 10 is not particularly limited, as long as meet can be in the time of primary importance conducting emergency vent 13 and suction port 11, in the time of the second place, disconnect the requirement of emergency vent 13 and suction port 11, alternatively, according to an embodiment of the present utility model, this safety valve also comprises: valve gap 30.Valve gap 30 is located on valve body 10, and valve body 10 is provided with the valve port 14 with valve gap 30 conductings, emergency vent 13 be located on valve gap 30 and with valve gap 30 conductings, valve 20 is located in valve gap 30 movably to open and close valve port 14.
Particularly, emergency vent 13 and valve gap 30 conductings, and by valve gap 30 and valve body 10 conductings, in the time normally giving vent to anger in air outlet 12, valve 20 is positioned at primary importance, on valve body 10, closes with the valve port 14 of valve gap 30 conductings, emergency vent 13 disconnects with suction port 12; When air outlet 12 is blocked can not normally give vent to anger time, valve 20 moves to the second place from primary importance, and valve port 14 is opened, emergency vent 13 and suction port 12 conductings, and gas unnecessary in valve body 10 is discharged from emergency vent 13.Thus, opened and closed valve port 14 and can be controlled conducting and the disconnection of emergency vent 13 and suction port 11 by control valve 20, it is convenient and simple and reasonable to control.
In order to realize the switching of valve 20 between primary importance and the second place, alternatively, according to an embodiment of the present utility model, in valve gap 30, be provided with limited post 31, in limited post 31, be formed with the unlimited receiving cavity in one end 311, valve 20 comprises: slide part 21 and sealed department 22.Wherein, slide part 21 is located in receiving cavity 311 slidably, sealed department 22 is connected with slide part 21, sealed department 22 open between the open position of valve port 14 and the closed position of close port 14 changeable, and when valve 20 is positioned at primary importance, sealed department 22 is positioned at closed position, and when valve 20 is positioned at the second place, sealed department 22 is positioned at open position.
In other words, limited post 31 is arranged on the roof of valve gap 30 and the lower end of the interior receiving cavity 311 of limited post 31 is opened wide, the common composition valve 20 of slide part 21 and sealed department 22, the structure adaptation of the structure of slide part 21 and receiving cavity 311, the upper end of slide part 21 is stretched in receiving cavity 311 and can be slided up and down in receiving cavity 311, sealed department 22 is connected with the lower end of slide part 21, and sealed department 22 can open and close valve port 14 by moving up and down.Particularly, in the time that valve 20 is positioned at primary importance, slide part 21 and sealed department 22 move down, sealed department 22 close port 14, and emergency vent 13 disconnects with suction port 11, and the gas in valve body 10 is discharged (as shown in Figure 2) from air outlet 12; In the time that valve 20 is positioned at the second place, slide part 21 and sealed department 22 move up, and sealed department 22 is opened valve port 14, emergency vent 13 and suction port 11 conductings, and the gas in valve body 10 is discharged (as shown in Figure 3) from emergency vent 13.Thus, can realize the switching of valve 20 between primary importance and the second place, and the switching between primary importance and the second place can realize the opening and closing of valve port 14 by valve 20, simple in structure, it is convenient to control.
Alternatively, according to an embodiment of the present utility model, slide part 21 is formed as column, and sealed department 22 is formed as round table-like, and the diameter of sealed department 22 is greater than the diameter of slide part 21 and the diameter of valve port 14.Particularly, the size adaptation of the diameter of slide part 21 and receiving cavity 311, the structure of sealed department 22 is advisable can open and close valve port 14, the diameter of sealed department 22 is greater than the diameter of valve port 14, can guarantee tightness when valve port 14 is closed, the diameter of sealed department 22 is greater than the diameter of slide part 21, and in the time that valve 20 moves from the second place to primary importance, sealed department 22 only can also play instead in order to avoid valve 20 to continue to move upward.
Further, according to an embodiment of the present utility model, the periphery of sealed department 22 is provided with seal ring.Wherein, seal ring can be rubber ring, and sealing snare is located on sealed department 22, can further guarantee the tightness coordinating between valve 20 and valve port 14.
Consider that the switching of valve 20 between primary importance and the second place is to control by the air pressure size in valve body 10, and under normal conditions, valve 20 is positioned at the primary importance of close port 14,, when suction port 11 and air outlet 12 air-flows of valve body 10 are unobstructed, when gas is directly discharged from air outlet 12, in valve body 10, do not have gas to overstock, valve body 10 internal air pressures are less, can not promote valve 20 and move to the second place.When air outlet 12 is stopped up, can not discharge smoothly from air outlet 12 through the gas of valve body 10 time, the interior gas of valve body 10 overstocks, in the time that valve body 10 internal air pressures acquire a certain degree, just can promote valve 20 moves to the second place, and in the time that valve body 10 internal air pressures return to normal level, valve 20 need to return to primary importance.Therefore,, according to an embodiment of the present utility model, this safety valve also comprises: elastic component 40.Elastic component 40 be located on limited post 31 and be only against valve gap 30 and sealed department 22 between.
Particularly, elastic component 40 can be spring, and elastic component 40 is set on limited post 31, and the roof of valve gap 30 is only supported in the upper end of elastic component 40, and the upper surface of sealed department 22 is only supported in the lower end of elastic component 40.In addition, the air pressure size that the elasticity size of elastic component 40 can bear according to valve body 10 is selected.Thus, by elastic component 40 is set, after valve body 10 internal air pressures narrow down to a certain degree, can realize automatically reseting of valve 20.
According to an embodiment of the present utility model, slide part 21 is integrally formed with sealed department 22.Thus, the structure being integrally formed not only can increase the overall structure stability of valve 20, and convenient formation, and preparation cost is cheap.
Overall structure about safety valve is not particularly limited, as long as meet when blocked in air outlet 12, valve body 10 can be discharged the requirement of unnecessary gas in time from emergency vent 13, alternatively, according to an embodiment of the present utility model, valve body 10 is formed as straight tube-like, and the axis of emergency vent 13 is perpendicular to the axis of valve body 10.In other words, the suction port 11 of valve body 10 becomes straight tube-like with air outlet 12 conductings, and valve gap 30 is arranged on the body of valve body 10, and emergency vent 13 is connected with valve gap 30 and perpendicular to valve body 10.Thus, the safety valve of this structure is not only convenient to be communicated with other structures of motor, and structure is attractive in appearance rationally.
Further, according to an embodiment of the present utility model, valve gap 30 is integrally formed with valve body 10.Correspondingly, emergency vent 13 is also integrally formed with valve gap 30.Thus, can further guarantee the overall structure stability of safety valve, and reduce moulding difficulty.
As shown in Figure 4, comprise according to the utility model second aspect embodiment's motor: engine crankcase 50, gas and oil separating plant 60, according to safety valve and the gas handling system of the crankcase ventilation system for motor described in the utility model above-described embodiment.
Particularly, this motor also comprises connected air-strainer 70, pressurized machine 80 and engine intake manifold 90, and engine crankcase 50 is provided with the first import 51 and the first outlet 52, the first imports 51 are connected with engine intake manifold 90.Gas and oil separating plant 60 is provided with the second import 61 and the second outlet 62, the second imports 61 are connected with the first outlet 52.The suction port 11 of safety valve and the second outlet 52 conductings, emergency vent 13 and extraneous conducting.Air outlet 12 conductings of gas handling system and safety valve, this gas handling system can be the car load gas handling system of automobile.
Thus, in the time that winter temperature is too low, from the higher waste gas streams of the temperature of engine crankcase 50 interior discharges after gas and oil separating plant 60, because long with the heat exchange with outside time, temperature reduces rapidly, when connecting pipeline by car load gas handling system, in waste gas, contain a large amount of aqueous vapors, very easily icing, when a large amount of freezing, easily make the pipeline blockage that circulates, now the interior waste gas of engine crankcase 50 just can not enter car load gas handling system in time through this pipeline, engine crankcase 50 internal pressures can raise gradually, after pressure raises to a certain degree, pressure overcomes in safety valve the active force of elastic component 40 to be raised from primary importance valve 50 to move to the second place, thereby valve 20 is opened, waste gas is discharged to outside by valve port 14 through emergency vent 13.Make engine crankcase 50 internal pressures can not continue again to raise, avoid causing the catastrophe failure of engine motor oil leakage and engine misses.
Be all known for those of ordinary skills according to other formations of the utility model embodiment's motor and operation, be not described in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in the situation that not departing from principle of the present utility model and aim in scope of the present utility model, modification, replacement and modification.
Claims (10)
1. for a safety valve for the crankcase ventilation system of motor, it is characterized in that, comprising:
Valve body, described valve body is provided with suction port, air outlet and emergency vent, described suction port and the conducting of described air outlet; With
Valve, described valve is located between described emergency vent and described suction port, described valve is changeable between primary importance and the second place, when described valve is positioned at described primary importance, described emergency vent and described suction port disconnect, when described valve is positioned at the described second place, described emergency vent and described suction port conducting.
2. the safety valve of the crankcase ventilation system for motor according to claim 1, it is characterized in that, also comprise: valve gap, described valve gap is located on described valve body, described valve body is provided with the valve port with described valve gap conducting, described emergency vent be located on described valve gap and with described valve gap conducting, described valve is located in described valve gap movably to open and close described valve port.
3. the safety valve of the crankcase ventilation system for motor according to claim 2, is characterized in that, in described valve gap, is provided with limited post, is formed with the unlimited receiving cavity in one end in described limited post, and described valve comprises:
Slide part, described slide part is located in described receiving cavity slidably; With
Sealed department, described sealed department is connected with described slide part, described sealed department is being opened the open position of described valve port and is being closed between the closed position of described valve port changeable, and when described valve is positioned at described primary importance, described sealed department is positioned at described closed position, when described valve is positioned at the described second place, described sealed department is positioned at described open position.
4. the safety valve of the crankcase ventilation system for motor according to claim 3, it is characterized in that, described slide part is formed as column, and described sealed department is formed as round table-like, and the diameter of described sealed department is greater than the diameter of described slide part and the diameter of described valve port.
5. the safety valve of the crankcase ventilation system for motor according to claim 4, is characterized in that, also comprises: elastic component, described elastic component be located on described limited post and be only against described valve gap and described sealed department between.
6. the safety valve of the crankcase ventilation system for motor according to claim 4, is characterized in that, the periphery of described sealed department is provided with seal ring.
7. according to the safety valve of the crankcase ventilation system for motor described in any one in claim 3-6, it is characterized in that, described slide part and described sealed department are integrally formed.
8. the safety valve of the crankcase ventilation system for motor according to claim 7, is characterized in that, described valve body is formed as straight tube-like, and the axis of described emergency vent is perpendicular to the axis of described valve body.
9. the safety valve of the crankcase ventilation system for motor according to claim 7, is characterized in that, described valve gap and described valve body are integrally formed.
10. a motor, is characterized in that, comprising:
Engine crankcase, described engine crankcase is provided with the first import and the first outlet;
Gas and oil separating plant, described gas and oil separating plant is provided with the second import and the second outlet, and described the second import is connected with described the first outlet;
Safety valve, described safety valve is according to the safety valve of the crankcase ventilation system for motor described in any one in claim 1-9, the suction port of described safety valve and described the second outlet conducting, described emergency vent and extraneous conducting; And
Gas handling system, the air outlet conducting of described gas handling system and described safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674946.7U CN203614166U (en) | 2013-10-29 | 2013-10-29 | Safety valve for crankcase ventilation system of engine and engine with safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674946.7U CN203614166U (en) | 2013-10-29 | 2013-10-29 | Safety valve for crankcase ventilation system of engine and engine with safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614166U true CN203614166U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674946.7U Expired - Fee Related CN203614166U (en) | 2013-10-29 | 2013-10-29 | Safety valve for crankcase ventilation system of engine and engine with safety valve |
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| Country | Link |
|---|---|
| CN (1) | CN203614166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108440989A (en) * | 2018-03-20 | 2018-08-24 | 何冠阅 | A kind of green basic material preparation facilities |
-
2013
- 2013-10-29 CN CN201320674946.7U patent/CN203614166U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108440989A (en) * | 2018-03-20 | 2018-08-24 | 何冠阅 | A kind of green basic material preparation facilities |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20181029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |