CN214787653U - Engine fan along with altitude change - Google Patents
Engine fan along with altitude change Download PDFInfo
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- CN214787653U CN214787653U CN202120775372.7U CN202120775372U CN214787653U CN 214787653 U CN214787653 U CN 214787653U CN 202120775372 U CN202120775372 U CN 202120775372U CN 214787653 U CN214787653 U CN 214787653U
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- fan
- engine
- crankshaft
- fan blade
- connecting rod
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- 230000008859 change Effects 0.000 title abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 12
- 241000883990 Flabellum Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of the engine fan, specifically be an engine fan along with height above sea level changes, it includes: the front cover, the fan blades, the first bushing, the fan blade shaft, the spring washer, the fixing nut, the baffle, the piston, the second bushing, the air bag, the pin shaft, the fan hub, the connecting rod, the bearing bush and the crankshaft, the front cover is connected to the left end of the fan hub, the fan blades are connected with the fan blade shaft, the first bushing is arranged outside the fan blade shaft, the fan blades are installed on the crankshaft through the fan blade shaft, the air bag is installed inside an engine fan in a plateau environment, the change of the external environment pressure can be effectively sensed, when the external environment pressure is reduced, the piston is pushed to move due to expansion of the air bag, the connecting rod crankshaft is driven to rotate, the angle of the fan blades is further rotated, the purpose of increasing the air inlet volume is achieved, and therefore under the same condition, the problems that due to elevation and density reduction, the air inflow is insufficient, and the engine is not cooled sufficiently are solved.
Description
Technical Field
The utility model relates to an engine fan technical field specifically is an engine fan along with altitude variation.
Background
China has the plateaus with the largest area in the world, the average altitude is 2000-4500 m, and the average altitude occupies about one third of the territorial area of China. Under the condition of plateau environment, the combustion in an engine cylinder is deteriorated, the heat transfer and dissipation capacity of a cooling system is reduced, if the control and the processing are not carried out, the heat transfer between a high-temperature part and cooling liquid can be seriously influenced, the problems of power reduction, water and oil temperature rise and overrun, overhigh heat load, reliability reduction and the like of the engine are caused, and finally the performance of a vehicle is seriously influenced. On one hand, the air intake of the engine is reduced due to the reduction of atmospheric pressure and air density, the afterburning is serious, and the temperature of heated components such as a cylinder cover, a cylinder sleeve and the like is increased; on the other hand, the heat dissipation capability of the radiator is reduced under the condition of high altitude.
Meanwhile, the fan lift can also be reduced along with the rise of the altitude, the altitude is 1000m per liter, and the fan lift is reduced by 7.38 percent on average. This is due to the elevation, the air density decreases, and the air flow resistance decreases. And the lower the engine speed, the more obvious the plateau environment has influence on the power. This is because the supercharger compensation effect is reduced at low speed and the pressure ratio is reduced. For traditional cooling fan, when being in the plateau environment, only can rely on engine crankshaft to drive its rotation, cool off the engine, can not solve because the external environment pressure changes and leads to the actual intake of engine cooling fan to reduce, the problem that the cooling effect weakens, so through changing the flabellum angle, increase the air input, can solve to a certain extent because the plateau environment leads to the engine cooling not enough, power descends, the too high scheduling problem of heat load.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems associated with existing engine fans.
Therefore, the utility model aims at providing an engine fan along with altitude variation changes, through to being in an air bag of engine fan internally mounted under the plateau environment, can experience external environment pressure's change effectively, when external environment pressure reduces, because the inflation of air bag, promote piston motion, it is rotatory to drive the connecting rod bent axle, and then rotatory flabellum angle, reach the purpose that increases the volume of admitting air, thereby under the same circumstances, improved because the altitude risees, density reduces and leads to the air input not enough, problem not enough to engine cooling.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
an engine fan that varies with altitude, comprising: the novel fan comprises a front cover, fan blades, a first bushing, a fan blade shaft, a spring washer, a fixing nut, a baffle, a piston, a second bushing, an air bag, a pin shaft, a fan hub, a connecting rod, a bearing bush and a crankshaft, wherein the front cover is connected to the left end of the fan hub, the fan blades are connected with the fan blade shaft, the first bushing is arranged outside the fan blade shaft, the fan blades are installed on the crankshaft through the fan blade shaft, the tail end of the fan blade shaft is locked through the fixing nut, the spring washer is arranged between the fixing nut and the crankshaft, the air bag is arranged in the inner cavity of the fan hub, the piston is connected to the left side of the air bag, the pin shaft is installed in the piston, the second bushing is arranged outside the pin shaft, the piston is connected with the connecting rod through the pin shaft, the baffle is installed at two ends of the pin shaft, and the connecting rod is connected with the crankshaft through the bearing bush.
As the utility model discloses a along with the height above sea level change engine fan's an preferred scheme, wherein: the fan blade and the fan blade shaft are of an integrated structure, and the tail end of the fan blade shaft is provided with a thread matched with the fixing nut.
As the utility model discloses a along with the height above sea level change engine fan's an preferred scheme, wherein: the connecting rod and the crankshaft are arranged in an inclined mode, and the connecting rod and the crankshaft are prevented from being in the same straight line.
As the utility model discloses a along with the height above sea level change engine fan's an preferred scheme, wherein: the right end of the fan hub is provided with a mounting hole and a mounting clamping groove.
As the utility model discloses a along with the height above sea level change engine fan's an preferred scheme, wherein: the air bag is filled with gas at standard atmospheric pressure.
Compared with the prior art: the utility model discloses an engine fan internally mounted to being in under the plateau environment has an gasbag, can experience external environment pressure's change effectively, when external environment pressure reduces, because the inflation of gasbag, promote the piston motion, it is rotatory to drive the connecting rod bent axle, and then rotatory flabellum angle, reach the purpose that increases the volume of admitting air, thereby under the same circumstances, improved because the height above sea level risees, density reduces and leads to the air input not enough, the problem not enough to engine cooling, the structure is comparatively simple, high reliability, adopt the gasbag, engine cooling strength can be adjusted according to external atmospheric pressure change, effectively improve the engine performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: the fan comprises a front cover 1, fan blades 2, a first bushing 3, a fan blade shaft 4, a spring washer 5, a fixing nut 6, a baffle 7, a piston 8, a second bushing 9, an air bag 10, a pin shaft 11, a fan hub 12, a connecting rod 13, a bearing 14 and a crankshaft 15.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model provides an engine fan along with altitude variation, to being in an engine fan internally mounted gasbag under the plateau environment, can experience external environment pressure's change effectively, when external environment pressure reduces, because the inflation of gasbag, promote piston motion, it is rotatory to drive the connecting rod bent axle, and then rotatory flabellum angle, reach the purpose that increases the volume of admitting air, thereby under the same circumstances, improved because the altitude risees, density reduces and leads to the air input not enough, to the not enough problem of engine cooling, please refer to figure 1, include: the fan comprises a front cover 1, fan blades 2, a first bushing 3, a fan blade shaft 4, a spring washer 5, a fixing nut 6, a baffle 7, a piston 8, a second bushing 9, an air bag 10, a pin shaft 11, a fan hub 12, a connecting rod 13, a bearing 14 and a crankshaft 15;
referring to fig. 1 again, the left end of a fan hub 12 is connected with a front cover 1, a fan blade 2 is connected with a fan blade shaft 4, a first bush 3 is arranged outside the fan blade shaft 4, the fan blade 2 is mounted on a crankshaft 15 through the fan blade shaft 4, the tail end of the fan blade shaft 4 is locked through a fixing nut 6, a spring washer 5 is arranged between the fixing nut 6 and the crankshaft 15, an air bag 10 is arranged in an inner cavity of the fan hub 12, the left side of the air bag 10 is connected with a piston 8, a pin shaft 11 is mounted in the piston 8, a second bush 9 is arranged outside the pin shaft 11, the piston 8 is connected with a connecting rod 13 through the pin shaft 11, two ends of the pin shaft 11 are provided with baffles 7, and the connecting rod 13 is connected with the crankshaft 15 through a bearing bush 14.
Wherein, when the external environment pressure of the engine changes, the air bag 10 filled with standard atmospheric pressure gas changes, when the external environment pressure is reduced, namely the altitude is increased, the air pressure inside the air bag 10 is higher than the external air pressure, so that the air bag expands, the piston 8 is pushed to move transversely, the piston 8 is connected with a connecting rod 13 through a pin shaft 11, the pin shaft 11 is arranged in the piston 8, two ends of the pin shaft 11 are provided with baffles 7 to prevent the pin shaft 11 from sliding along the axial direction of the pin shaft 11, the connecting rod 13 rotates under the pushing of the piston 8, in order to prevent the connecting rod 13 from rotating towards two directions, a certain angle is kept between the connecting rod 13 and a crankshaft 15 when the connecting rod 13 is arranged to prevent the connecting rod and the crankshaft from being on the same straight line, a bearing bush 14 is arranged between the connecting rod 13 and the crankshaft 15, the crankshaft 13 pushes the crankshaft 15 to rotate together, the crankshaft 15 is connected with a fan blade shaft 4 with threads at one end, the bottom end of the fan blade shaft 4 is locked by a fixing nut 6, the fan shaft 4 is prevented from sliding, the crankshaft 15 rotates at the moment, the fan blade shaft 4 is also driven to rotate, the fan blade shaft 4 and the fan blades 2 are generally processed into a whole, then the angle of the fan blades 2 can rotate under the action of a series of objects such as a piston 8 and the like, the angle is increased, the air inflow of the fan is increased accordingly, and the problems of low cooling strength and the like caused by insufficient air inflow of an engine in a plateau environment can be well solved.
When the pressure of the external environment of the engine rises, the pressure difference generated between the pressure of the gas in the air bag 10 and the external environment is gradually reduced, the rotating angle of the fan blade 2 is also reduced, because the gas density is increased at the moment, the air intake amount is increased, the angle of the fan blade 2 is reduced to prevent the excessive air intake amount from causing the excessive cooling of the engine, when the pressure difference is not enough to push the piston 8 to move, namely, the air intake resistance of the fan is not enough to overcome, the piston connecting rod 13 stops working under the action of the air intake resistance of the fan and returns to the initial position, when the pressure difference rises, namely, the altitude rises, the air bag 10 works again and can be well matched with the change of the external altitude, thereby properly cooling the engine and keeping the performance of the engine not influenced by the excessive external environment.
The utility model discloses a can furthest exert this utility model's effect on being used for under the plateau environment or on the vehicle engine of the higher area of height above sea level.
The connecting rod 13 and the crankshaft 15 are arranged obliquely to each other, so that the connecting rod 13 and the crankshaft 15 are prevented from being in a straight line, and the connecting rod 13 is prevented from rotating in two directions.
The right end of the fan hub 12 is provided with a mounting hole and a mounting clamping groove for connecting the fan hub 12 with an engine.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. An engine fan that varies with altitude, comprising: the fan comprises a front cover (1), fan blades (2), a first bushing (3), a fan blade shaft (4), a spring washer (5), a fixing nut (6), a baffle plate (7), a piston (8), a second bushing (9), an air bag (10), a pin shaft (11), a fan hub (12), a connecting rod (13), a bearing bush (14) and a crankshaft (15), wherein the front cover (1) is connected with the left end of the fan hub (12), the fan blades (2) are connected with the fan blade shaft (4), the first bushing (3) is arranged outside the fan blade shaft (4), the fan blades (2) are installed on the crankshaft (15) through the fan blade shaft (4), the tail end of the fan blade shaft (4) is locked through the fixing nut (6), the spring washer (5) is arranged between the fixing nut (6) and the crankshaft (15), the air bag (10) is arranged in the inner cavity of the fan hub (12), and the piston (8) is connected to the left side of the air bag (10), the piston is characterized in that the pin shaft (11) is installed in the piston (8), a second bushing (9) is arranged outside the pin shaft (11), the piston (8) is connected with the connecting rod (13) through the pin shaft (11), the two ends of the pin shaft (11) are provided with the baffle plates (7), and the connecting rod (13) is connected with the crankshaft (15) through the bearing bush (14).
2. The engine fan varying with altitude according to claim 1, wherein the fan blade (2) and the fan blade shaft (4) are of a one-piece structure, and the end of the fan blade shaft (4) is provided with a thread matched with the fixing nut (6).
3. The engine fan varying with altitude according to claim 1, wherein the connecting rod (13) and the crankshaft (15) are disposed obliquely to each other to avoid the connecting rod (13) and the crankshaft (15) being in a straight line.
4. The engine fan varying with altitude according to claim 1, wherein the right end of the fan hub (12) is provided with a mounting hole and a mounting slot.
5. The engine fan varying with altitude according to claim 1, wherein the air bag (10) is filled with a gas at a normal atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120775372.7U CN214787653U (en) | 2021-04-15 | 2021-04-15 | Engine fan along with altitude change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120775372.7U CN214787653U (en) | 2021-04-15 | 2021-04-15 | Engine fan along with altitude change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787653U true CN214787653U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120775372.7U Expired - Fee Related CN214787653U (en) | 2021-04-15 | 2021-04-15 | Engine fan along with altitude change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115708934A (en) * | 2022-12-08 | 2023-02-24 | 西藏佰仕富氧科技有限公司 | Intelligent induction type plateau vehicle-mounted oxygen supply device |
-
2021
- 2021-04-15 CN CN202120775372.7U patent/CN214787653U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115708934A (en) * | 2022-12-08 | 2023-02-24 | 西藏佰仕富氧科技有限公司 | Intelligent induction type plateau vehicle-mounted oxygen supply device |
| CN115708934B (en) * | 2022-12-08 | 2023-09-01 | 西藏佰仕富氧科技有限公司 | Intelligent induction type plateau vehicle-mounted oxygen supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |