Wind scooper and engine

Abstract

The utility model provides a wind scooper and an engine, the wind scooper is installed on the end portion of the engine body of the engine, the engine further comprises a first cylinder head and a second cylinder head which are arranged on the end portion of the engine body, and an impeller is further arranged on the end portion of the engine body. The wind scooper comprises a mounting plate and an annular coaming assembly. The mounting plate is provided with an impeller mounting area, a first cylinder head cooling area and a second cylinder head cooling area, a mounting hole is formed in the impeller mounting area, and the impeller corresponds to the mounting hole. A first cylinder head cooling cavity is defined by the impeller, the first cylinder head cooling area and the coaming assembly, and a second cylinder head cooling cavity is defined by the impeller, the second cylinder head cooling area and the coaming assembly. The impeller rotates to draw external cold air from the mounting hole and then continuously conveys the external cold air to the first cylinder head cooling cavity and the second cylinder head cooling cavity, and the cold air in the first cylinder head cooling cavity and the cold air in the second cylinder head cooling cavity flow to the first cylinder head and the second cylinder head correspondingly and cool the first cylinder head and the second cylinder head. And the first cylinder head and the second cylinder head work in a proper temperature interval.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an air guide cover and an engine. Background Art

[0002] When the engine is running, the temperature of the cylinder head rises. Excessively high cylinder head temperature can cause premature ignition or detonation of the fuel. In addition, when the cylinder head temperature is too high, the components expand due to the heat, affecting their normal operation.

[0003] In the prior art, single-cylinder engines are equipped with an impeller and an air scoop. The air scoop directs the cold air generated by the impeller to the engine cylinder head for cooling. However, for a dual-cylinder engine, how to design a suitable air scoop to allow the cold air generated by the impeller to cool both cylinder heads is an urgent problem for those skilled in the art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides an air scoop and an engine, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems in the prior art.

[0005] The utility model provides an air guide cover, which is installed on the end of the engine body; the engine further includes a first cylinder head and a second cylinder head arranged on the end of the engine body; the end of the engine body is also provided with an impeller; the air guide cover includes:

[0006] A mounting plate, the mounting plate having an impeller mounting area, a first cylinder head cooling area, and a second cylinder head cooling area, wherein a mounting hole is formed in the impeller mounting area; and

[0007] an annular panel assembly, one side of which is connected to the outer edge of the mounting plate, and the other side of which corresponds to the end of the machine body;

[0008] The impeller is located in the annular enclosure assembly; the impeller corresponds to the mounting hole; the impeller, the first cylinder head cooling zone and the enclosure assembly together form a first cylinder head cooling cavity; the open end of the first cylinder head cooling cavity is opposite to the first cylinder head; the impeller, the second cylinder head cooling zone and the enclosure assembly together form a second cylinder head cooling cavity; the open end of the second cylinder head cooling cavity is opposite to the second cylinder head.

[0009] Preferably, the enclosure assembly comprises:

[0010] a first enclosing plate, one side of the first enclosing plate being connected to the outer edge of the mounting plate, a middle portion of the first enclosing plate being close to the impeller, and both ends of the first enclosing plate being gradually farther away from the impeller;

[0011] a second enclosing plate, one side of the second enclosing plate being connected to an outer edge of the mounting plate, and one end of the second enclosing plate being connected to an end portion of the first enclosing plate; and

[0012] a third enclosure plate, one side of the third enclosure plate being connected to the outer edge of the mounting plate, and one end of the third enclosure plate being connected to an end of the first enclosure plate away from the second enclosure plate;

[0013] One end of the third enclosing plate away from the first enclosing plate is connected to the end of the second enclosing plate away from the first enclosing plate; the first enclosing plate, the second enclosing plate, the first cylinder head cooling area and the impeller together form the first cylinder head cooling cavity; the first enclosing plate, the third enclosing plate, the second cylinder head cooling area and the impeller together form the second cylinder head cooling cavity.

[0014] Preferably, a side of the middle portion of the first enclosure away from the mounting plate is wrapped around the end portion of the machine body; and a cooling gap is formed between the middle portion of the first enclosure and the end portion of the machine body.

[0015] Preferably, an installation window is provided on one end of the first enclosure plate close to the third enclosure plate; the installation window is used for installing an oil cooler; and the installation window is communicated with the second cylinder head cooling cavity.

[0016] Preferably, the second enclosure extends close to the impeller at one end away from the first enclosure; and the third enclosure extends close to the impeller at one end away from the first enclosure and is connected to the outer wall of the first enclosure.

[0017] Preferably, the middle portion of the second enclosure panel is recessed inwards; and the middle portion of the third enclosure panel is recessed inwards.

[0018] Preferably, it further includes a volume reduction plate; both ends of the volume reduction plate are respectively connected to the inner wall of the first enclosure plate; the volume reduction plate is located in the first cylinder head cooling cavity; the middle of the volume reduction plate is close to the impeller.

[0019] Preferably, it further comprises a dust cover; the dust cover covers the outside of the mounting hole; the dust cover is detachably connected to the mounting plate.

[0020] The utility model also provides an engine, comprising any one of the above-mentioned air guide covers.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this technology, the impeller rotates, draws cool air from the outside through the mounting hole, and continuously delivers it to the first and second cylinder head cooling chambers. The cool air in the first and second cylinder head cooling chambers flows toward and cools the first and second cylinder heads, respectively, keeping them operating within their appropriate temperature ranges. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0024] Figure 1 This is a three-dimensional diagram of an air guide cover and an engine in one embodiment of the present utility model;

[0025] Figure 2 for Figure 1 A perspective view of the engine;

[0026] Figure 3 for Figure 1 Another stereogram of

[0027] Figure 4 for Figure 1 A three-dimensional view of the center air scoop;

[0028] Figure 5 for Figure 4 Another stereogram of

[0029] Figure 6 for Figure 4 Another stereogram of

[0030] Figure 7 for Figure 4 Another stereogram of .

[0031] Reference numerals:

[0032] 10. Engine body; 11. First cylinder head; 12. Second cylinder head; 13. Impeller; 14. Oil cooler; 20. Mounting plate; 21. Impeller mounting area; 22. First cylinder head cooling area; 23. Second cylinder head cooling area; 24. Mounting hole; 25. First cylinder head cooling cavity; 26. Second cylinder head cooling cavity; 30. Annular enclosure assembly; 31. First enclosure; 32. Second enclosure; 33. Third enclosure; 34. Cooling gap; 35. Mounting window; 36. Volume reduction plate;

[0033] 40. Dust cover. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0038] In this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] See also Figures 1 to 7This embodiment provides an air scoop mounted on the end of an engine body 10. The engine further includes a first cylinder head 11 and a second cylinder head 12 disposed on the end of the engine body 10. An impeller 13 is also disposed on the end of the engine body 10.

[0041] The air scoop includes a mounting plate 20 and an annular enclosure assembly 30 .

[0042] The mounting plate 20 includes an impeller mounting area 21, a first cylinder head cooling area 22, and a second cylinder head cooling area 23. The impeller mounting area 21 is provided with a mounting hole 24. One side of the annular enclosure assembly 30 is connected to the outer edge of the mounting plate 20, while the other side of the annular enclosure assembly 30 corresponds to the end of the engine body 10. The impeller 13 is located within the annular enclosure assembly 30, and the impeller 13 corresponds to the mounting hole 24. The impeller 13 rotates to blow the cooling air in all directions, drawing cool air outward from the mounting hole 24. The impeller 13, the first cylinder head cooling area 22, and the enclosure assembly together form a first cylinder head cooling chamber 25; the open end of the first cylinder head cooling chamber 25 faces the first cylinder head 11. The impeller 13, the second cylinder head cooling area 23, and the enclosure assembly together form a second cylinder head cooling chamber 26; the open end of the second cylinder head cooling chamber 26 faces the second cylinder head 12.

[0043] In this embodiment, the impeller 13 rotates to draw cool air from the outside through the mounting hole 24 and continuously delivers it to the first cylinder head cooling chamber 25 and the second cylinder head cooling chamber 26. The cool air in the first cylinder head cooling chamber 25 and the second cylinder head cooling chamber 26 flows toward and cools the first cylinder head 11 and the second cylinder head 12, respectively, so that the first cylinder head 11 and the second cylinder head 12 operate within a suitable temperature range.

[0044] In one embodiment, the enclosure panel assembly includes a first enclosure panel 31 , a second enclosure panel 32 and a third enclosure panel 33 .

[0045] One side of the first panel 31 is connected to the outer edge of the mounting plate 20. The middle of the first panel 31 is close to the impeller 13, and the ends of the first panel 31 are gradually farther away from the impeller 13. One side of the second panel 32 is connected to the outer edge of the mounting plate 20, and one end of the second panel 32 is connected to the end of the first panel 31. One side of the third panel 33 is connected to the outer edge of the mounting plate 20, and one end of the third panel 33 is connected to the end of the first panel 31 away from the second panel 32.

[0046] One end of the third enclosing plate 33 away from the first enclosing plate 31 is connected to the end of the second enclosing plate 32 away from the first enclosing plate 31; the first enclosing plate 31, the second enclosing plate 32, the first cylinder head cooling area 22 and the impeller 13 together form a first cylinder head cooling cavity 25; the first enclosing plate 31, the third enclosing plate 33, the second cylinder head cooling area 23 and the impeller 13 together form a second cylinder head cooling cavity 26.

[0047] In this embodiment, the first enclosure 31 is generally V-shaped, with the middle portion of the first enclosure 31 close to the impeller 13, while the ends of the first enclosure 31 are farther away from the impeller 13. When the impeller 13 rotates, cooling air enters the enclosure assembly through the mounting hole 24. Since the space between the impeller 13 and the middle portion of the first enclosure 31 is small, the cooling air is primarily delivered to the first cylinder head cooling cavity 25 and the second cylinder head cooling cavity 26, thereby improving the cooling effect on the first and second cylinder heads 11 and 12.

[0048] In one embodiment, a side of the middle portion of the first enclosing plate 31 away from the mounting plate 20 is wrapped around the end portion of the machine body 10 ; a cooling gap 34 is formed between the middle portion of the first enclosing plate 31 and the end portion of the machine body 10 .

[0049] In this embodiment, during the rotation of the impeller 13 , cold air cools the end of the engine body 10 away from the first cylinder head 11 and the second cylinder head 12 through the cooling gap 34 in the middle of the first enclosure 31 .

[0050] In one embodiment, a mounting window 35 is defined on one end of the first enclosure 31, adjacent to the third enclosure 33, for mounting the oil cooler 14. The mounting window 35 communicates with the second cylinder head cooling chamber 26. Specifically, the oil cooler 14 can be constructed in accordance with existing techniques. A large number of cooling fins are disposed on the exterior of the oil cooler 14, which is connected to the engine via piping and mounted outside the mounting window 35.

[0051] In this embodiment, the oil cooler 14 is installed in the installation window 35. In addition to being blown directly to the second cylinder head 12, the cold air in the second cylinder head cooling chamber 26 can also flow out from the installation window 35 to cool the oil cooler 14, thereby maintaining the engine oil temperature within a suitable range.

[0052] In one embodiment, the end of the second enclosure 32 away from the first enclosure 31 extends closer to the impeller 13. The end of the third enclosure 33 away from the first enclosure 31 extends closer to the impeller 13 and is connected to the outer wall of the first enclosure 31. Specifically, the distance between the end of the second enclosure 32 away from the first enclosure 31 and the impeller 13 is relatively close.

[0053] In this embodiment, the end of the second enclosure 32 distal from the first enclosure 31 is closer to the impeller 13, thereby preventing cold air from circulating between the first and second cylinder head cooling chambers 25, 26. The cold air inputted by the impeller 13 into the first and second cylinder head cooling chambers 25, 26 is directed toward the first and second cylinder heads 11, 12, respectively. Furthermore, the end of the second enclosure 32 distal from the first enclosure 31 is closer to the impeller 13, and the third enclosure 33 is connected to this end. This reduces the volume of the first and second cylinder head cooling chambers 25, 26, minimizing the velocity loss of the cold air inputted by the impeller 13 within the first and second cooling chambers. This allows the cold air to quickly gather in the first and second cylinder head cooling chambers 25, 26 before being blown toward the first and second cylinder heads 11, 12, respectively.

[0054] In one embodiment, a middle portion of the second enclosure panel 32 is recessed inwardly, and a middle portion of the third enclosure panel 33 is recessed inwardly.

[0055] In this embodiment, the middle portions of the second enclosure 32 and the third enclosure 33 are both concave, thereby reducing the volume of the first cylinder head cooling cavity 25 and the second cylinder head cooling cavity 26, thereby reducing the flow rate loss of the cold air input by the impeller 13, and further allowing the cold air to have a higher flow rate when flowing to the first cylinder head 11 and the second cylinder head 12, thereby achieving a better cooling effect.

[0056] In one embodiment, the air guide cover further includes a volume reduction plate 36 . Both ends of the volume reduction plate 36 are connected to the inner wall of the first enclosure 31 . The volume reduction plate 36 is located in the first cylinder head cooling cavity 25 . The middle portion of the volume reduction plate 36 is close to the impeller 13 .

[0057] In this embodiment, adding the volume reduction plate 36 in the first cylinder head cooling cavity 25 can reduce the space through which the cold air flows in the first cylinder head cooling cavity 25 , thereby reducing the flow rate loss of the air in the first cylinder head cooling cavity 25 .

[0058] In one embodiment, the air scoop machine further includes a dust cover 40, which covers the outside of the mounting hole 24 and is detachably connected to the mounting plate 20. The dust cover 40 and the mounting plate 20 can be connected by bolts.

[0059] In this embodiment, the detachable connection between the dust cover 40 and the mounting plate 20 facilitates maintenance of the impeller 13 .

[0060] This embodiment provides an engine, comprising any one of the above-mentioned air scoops.

[0061] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An air guide cover mounted on the end of an engine body (10); the engine further comprising a first cylinder head (11) and a second cylinder head (12) arranged on the end of the engine body (10); an impeller (13) is also arranged on the end of the engine body (10); characterized in that: The air guide cover comprises: A mounting plate (20), the mounting plate (20) having an impeller mounting area (21), a first cylinder head cooling area (22), and a second cylinder head cooling area (23), and a mounting hole (24) is provided on the impeller mounting area (21); and an annular enclosure assembly (30), one side of the annular enclosure assembly (30) being connected to the outer edge of the mounting plate (20), and the other side of the annular enclosure assembly (30) corresponding to the end of the machine body (10); The impeller (13) is located in the annular enclosure assembly (30); the impeller (13) corresponds to the mounting hole (24); the impeller (13), the first cylinder head cooling zone (22) and the enclosure assembly together form a first cylinder head cooling cavity (25); the open end of the first cylinder head cooling cavity (25) is opposite to the first cylinder head (11); the impeller (13), the second cylinder head cooling zone (23) and the enclosure assembly together form a second cylinder head cooling cavity (26); the open end of the second cylinder head cooling cavity (26) is opposite to the second cylinder head (12).

2. The air guide cover according to claim 1, wherein: The enclosure assembly comprises: a first enclosing plate (31), one side of the first enclosing plate (31) being connected to the outer edge of the mounting plate (20), a middle portion of the first enclosing plate (31) being close to the impeller (13), and both ends of the first enclosing plate (31) being gradually farther away from the impeller (13); a second enclosing plate (32), one side of the second enclosing plate (32) being connected to the outer edge of the mounting plate (20), and one end of the second enclosing plate (32) being connected to the end of the first enclosing plate (31); and a third enclosure plate (33), one side of the third enclosure plate (33) being connected to the outer edge of the mounting plate (20), and one end of the third enclosure plate (33) being connected to an end of the first enclosure plate (31) away from the second enclosure plate (32); One end of the third enclosing plate (33) away from the first enclosing plate (31) is connected to one end of the second enclosing plate (32) away from the first enclosing plate (31); the first enclosing plate (31), the second enclosing plate (32), the first cylinder head cooling zone (22) and the impeller (13) together form the first cylinder head cooling cavity (25); the first enclosing plate (31), the third enclosing plate (33), the second cylinder head cooling zone (23) and the impeller (13) together form the second cylinder head cooling cavity (26).

3. The air guide cover according to claim 2, characterized in that: A side of the middle portion of the first enclosure (31) away from the mounting plate (20) is wrapped around the end of the machine body (10); a cooling gap (34) is formed between the middle portion of the first enclosure (31) and the end of the machine body (10).

4. The air guide cover according to claim 3, characterized in that: An installation window (35) is provided on one end of the first enclosure (31) close to the third enclosure (33); the installation window (35) is used to install an oil cooler (14); and the installation window (35) is communicated with the second cylinder head cooling cavity (26).

5. The air guide cover according to claim 4, characterized in that: One end of the second enclosure (32) away from the first enclosure (31) extends close to the impeller (13); one end of the third enclosure (33) away from the first enclosure (31) extends close to the impeller (13) and is connected to the outer wall of the first enclosure (31).

6. The air guide cover according to claim 5, characterized in that: The middle portion of the second enclosure plate (32) is concave inwards; the middle portion of the third enclosure plate (33) is concave inwards.

7. The air guide cover according to claim 6, characterized in that: It also includes a volume reduction plate (36); both ends of the volume reduction plate (36) are respectively connected to the inner wall of the first enclosure plate (31); the volume reduction plate (36) is located in the first cylinder head cooling cavity (25); and the middle portion of the volume reduction plate (36) is close to the impeller (13).

8. The air guide cover according to any one of claims 1 to 7, characterized in that: It also includes a dust cover (40); the dust cover (40) covers the outside of the mounting hole (24); and the dust cover (40) is detachably connected to the mounting plate (20).

9. An engine, characterized in that: It comprises the air guide cover as described in any one of claims 1 to 8.

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