Air inlet system capable of taking air reversely and tractor

Abstract

The utility model relates to an air inlet system capable of taking air reversely and a tractor, and belongs to the field of tractors. Comprising an air filter, an air filter end cover shell, an air filter air inlet rubber pipe, a fuel tank, a dustproof net, an air filter air outlet rubber pipe, a turbocharger and a sealing mechanism. The air filter is arranged above an engine, the rear end of the air filter is connected with one end of the air filter end cover shell through a sealing mechanism, the front end and the rear end of the air filter air inlet rubber pipe are connected with the end, away from the air filter, of the air filter end cover shell and the fuel tank respectively, and the dustproof net is arranged at the rear end of the fuel tank. The two ends of the air filter air outlet rubber pipe are connected with the front end of the air filter and the turbocharger respectively, and the dustproof net, the fuel tank, the air filter air inlet rubber pipe, the air filter end cover shell, the air filter and the air filter air outlet rubber pipe are sequentially communicated from back to front. The air intake device is favorable for taking air from the rear part of the engine, and solves the problems that the performance of the engine is limited due to difficult air taking of the tractor and the air filter cannot be arranged in front due to insufficient internal space of the hood.

Description

Technical Field

[0001] This utility model relates to the field of tractors, and in particular to a reverse air intake system and a tractor. Background Technology

[0002] Tractors are becoming increasingly high-end, and people have higher requirements for tractor visibility. Power-related modules tend to be built-in, mainly including the engine intake system, exhaust system, and aftertreatment system. Currently, most tractor air filters are located inside the engine hood, fixed in front of the radiator, which facilitates air intake from the front of the hood and also allows for the addition of dust ejector devices to the air duct.

[0003] However, for high-end compact small-horsepower tractors operating in hilly and paddy fields, the low ground clearance and narrow interior space of the engine hood make it difficult to draw air from the front of the engine. Currently, some models place the air filter above the engine, with the air intake pipe extending towards the fan and fixed to the top of the radiator. However, this method requires extending the intake pipe, which is prone to collapsing, resulting in insufficient air intake and the easy intake of hot air. As the intake air temperature rises, the oxygen content in the air decreases, thereby reducing engine combustion efficiency and potentially causing insufficient engine power. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a reverse air intake system and a tractor to solve the above-mentioned problem.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A reverse air intake system includes: an air filter, an air filter end cap housing, an air filter intake hose, a fuel tank, a dust filter, an air filter exhaust hose, a turbocharger, and a sealing mechanism; the air filter is disposed above the engine, the rear end of the air filter is connected to one end of the air filter end cap housing through the sealing mechanism, the front end and rear end of the air filter intake hose are respectively connected to the end of the air filter end cap housing away from the air filter and the fuel tank, the dust filter is disposed at the rear end of the fuel tank, the two ends of the air filter exhaust hose are respectively connected to the front end of the air filter and the turbocharger, and the dust filter, the fuel tank, the air filter intake hose, the air filter end cap housing, the air filter, and the air filter exhaust hose are connected sequentially from back to front.

[0006] The beneficial effects of this utility model are as follows: Compared with the existing tractor air intake systems that draw air from the front and top of the engine, this utility model draws air from the rear of the engine, which can solve the problem of limited engine performance caused by the difficulty of air intake in high-end compact tractors; the front and rear ends of the fuel tank are connected to the air filter intake hose and the dust screen respectively, which is equivalent to integrating the air filter intake hose into the fuel tank, which can shorten the length of the air filter intake hose, solve the problem that the air filter cannot be placed in front due to insufficient space inside the engine hood, and at the same time meet the normal air intake requirements of the engine, reduce design and maintenance costs, and facilitate user use.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the front end and rear end of the air filter end cap housing are respectively the air outlet end and the air inlet end. The air outlet end of the air filter end cap housing is connected to the rear end of the air filter through the sealing mechanism, and the air inlet end of the air filter end cap housing is connected to the front end of the air filter inlet hose through a ring.

[0009] The advantages of adopting the above-mentioned further solutions are: the sealing mechanism helps to prevent high-temperature gas inside the hood from being sucked into the air filter from the connection between the air filter end cover housing and the air filter, and the ring clamp helps to ensure the stability of the connection between the air filter end cover housing and the air filter intake hose.

[0010] Furthermore, the air filter is internally provided with multiple swirl tubes, the air outlet end of the air filter end cap housing is connected to the rear end of the swirl tubes, and the longitudinal cross-sectional area of ​​the air inlet end of the air filter end cap housing is greater than the sum of the longitudinal cross-sectional areas of the rear ends of the multiple swirl tubes.

[0011] The beneficial effect of adopting the above-mentioned further solution is that it helps ensure that the air intake volume of the air filter meets the engine's operating requirements.

[0012] Furthermore, the sealing mechanism includes: a sealing rubber ring, a connecting plate, and a plurality of fastening bolts; the sealing rubber ring is adapted to be installed at the connection between the air filter end cover housing and the air filter, the connecting plate is in contact with the sealing rubber ring, and the fastening bolts pass through the connecting plate and the sealing rubber ring and are connected to the air filter end cover housing and the air filter.

[0013] The beneficial effects of adopting the above-mentioned further solutions are: the sealing rubber ring helps to prevent high-temperature gas inside the hood from being sucked into the air filter from the connection between the air filter end cover housing and the air filter; the connecting plate and fastening bolts help to prevent the sealing rubber ring from deforming due to compression, thus improving the stability of the sealing rubber ring during operation.

[0014] Furthermore, the fuel tank has an air intake channel inside, which is a through hole.

[0015] The beneficial effects of adopting the above-mentioned further solution are: the air intake channel is set inside the fuel tank, which saves space and provides a stable air intake channel, avoiding the problem of the air filter intake hose collapsing due to pressure difference.

[0016] Furthermore, the front end of the air intake channel is the fuel tank outlet, and the rear end of the air filter intake hose is fitted onto the fuel tank outlet via a ring clamp.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it helps to improve the stability of the connection between the air filter intake hose and the intake passage in the fuel tank.

[0018] Furthermore, the rear end of the air intake channel is the fuel tank air inlet, and the dustproof net is detachably installed on the fuel tank air inlet.

[0019] The beneficial effects of adopting the above-mentioned further solutions are: it helps to pre-filter the air entering the air filter, which can prevent external weeds and particles from entering the air filter, improve the intake air quality of the engine, and extend the service life and maintenance cycle of the air filter.

[0020] Furthermore, it also includes an engine cylinder head cover, on which the air filter is mounted.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the engine cylinder head cover, as part of the engine, helps to provide support for the installation of the air filter, allowing the air filter to be installed above the engine, saving space inside the cover.

[0022] Furthermore, the two ends of the air filter outlet hose are respectively connected to the front end of the air filter and the turbocharger via ring clamps.

[0023] The beneficial effect of adopting the above-mentioned further solutions is that it helps to improve the stability of the air filter outlet hose connection and use.

[0024] A tractor including the aforementioned reverse air intake system.

[0025] The beneficial effects of this utility model are: it facilitates the application of the reverse air intake system to tractors and optimizes the design of the tractor's air intake system. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0027] Figure 2 A longitudinal sectional view of the fuel tank provided in an embodiment of this utility model;

[0028] Figure 3This is a schematic diagram of the rear end of an air filter provided in an embodiment of the present invention.

[0029] in, Figure 1 The double-headed arrows indicate the installation orientation of each component.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Air filter; 2. Air filter end cap housing; 3. Air filter intake hose; 4. Fuel tank; 5. Dust screen; 6. Air filter exhaust hose; 7. Turbocharger; 8. Sealing mechanism; 9. Engine cylinder head cover; 10. Ring clamp; 11. Swirl tube; 41. Fuel tank air inlet; 42. Fuel tank air outlet; 43. Intake passage; 81. Sealing rubber ring; 82. Connecting plate; 83. Fastening bolts. Detailed Implementation

[0032] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0033] like Figures 1 to 3 As shown, a reverse air intake system includes: an air filter 1, an air filter end cap housing 2, an air filter intake hose 3, a fuel tank 4, a dust filter 5, an air filter exhaust hose 6, a turbocharger 7, and a sealing mechanism 8. The air filter 1 is located above the engine. The rear end of the air filter 1 is connected to one end of the air filter end cap housing 2 via the sealing mechanism 8. The front and rear ends of the air filter intake hose 3 are respectively connected to the end of the air filter end cap housing 2 away from the air filter 1 and the fuel tank 4. The dust filter 5 is located at the rear end of the fuel tank 4. The two ends of the air filter exhaust hose 6 are respectively connected to the front end of the air filter 1 and the turbocharger 7. The dust filter 5, the fuel tank 4, the air filter intake hose 3, the air filter end cap housing 2, the air filter 1, and the air filter exhaust hose 6 are connected sequentially from back to front.

[0034] The beneficial effects of this utility model are as follows: Compared with the existing tractor air intake systems that draw air from the front and top of the engine, this utility model draws air from the rear of the engine, which can solve the problem of limited engine performance caused by the difficulty of air intake in high-end compact tractors; the front and rear ends of the fuel tank are connected to the air filter intake hose and the dust screen respectively, which is equivalent to integrating the air filter intake hose into the fuel tank, which can shorten the length of the air filter intake hose, solve the problem that the air filter cannot be placed in front due to insufficient space inside the engine hood, and at the same time meet the normal air intake requirements of the engine, reduce design and maintenance costs, and facilitate user use.

[0035] Preferred, such as Figure 1As shown, the front end and rear end of the air filter end cap housing 2 are the air outlet and air inlet respectively. The air outlet of the air filter end cap housing 2 is connected to the rear end of the air filter 1 through the sealing mechanism 8, and the air inlet of the air filter end cap housing 2 is connected to the front end of the air filter air inlet hose 3 through the ring clamp 10.

[0036] The advantages of adopting the above preferred solution are: the sealing mechanism helps to prevent high-temperature gas inside the hood from being sucked into the air filter from the connection between the air filter end cover housing and the air filter; and the ring clamp helps to ensure the stability of the connection between the air filter end cover housing and the air filter inlet hose.

[0037] Preferred, such as Figure 1 and Figure 3 As shown, the air filter 1 has multiple swirl tubes 11 inside. The air outlet of the air filter end cap housing 2 is connected to the rear end of the swirl tubes 11. The longitudinal cross-sectional area of ​​the air inlet of the air filter end cap housing 2 is greater than the sum of the longitudinal cross-sectional areas of the rear ends of the multiple swirl tubes 11.

[0038] The advantage of adopting the above-mentioned preferred solution is that it helps ensure that the air intake volume of the air filter meets the engine's operating requirements.

[0039] Preferred, such as Figure 1 As shown, the sealing mechanism 8 includes: a sealing rubber ring 81, a connecting plate 82, and a plurality of fastening bolts 83; the sealing rubber ring 81 is adapted to be installed at the connection between the air filter end cap housing 2 and the air filter 1, the connecting plate 82 is in contact with the sealing rubber ring 81, and the fastening bolts 83 pass through the connecting plate 82 and the sealing rubber ring 81 and are connected to the air filter end cap housing 2 and the air filter 1.

[0040] The advantages of adopting the above preferred solution are: the sealing rubber ring helps to prevent high-temperature gas inside the hood from being drawn into the air filter from the connection between the air filter end cover housing and the air filter; the connecting plate and fastening bolts help to prevent the sealing rubber ring from deforming due to compression, thus improving the stability of the sealing rubber ring during operation.

[0041] Preferred, such as Figure 2 As shown, the fuel tank 4 has an air intake channel 43 inside, and the air intake channel 43 is a through hole.

[0042] It should be noted that in the technical solution of this utility model, the dustproof net 5, the air intake channel 43, the air filter intake hose 3, the air filter end cap housing 2, the air filter 1, and the air filter outlet hose 6 are connected sequentially from back to front. In order to reduce the intake resistance of the engine, the bending angle of the channel through which the intake air flows in the air filter 1 is as large as possible. That is, the channel formed by the air intake channel 43, the air filter intake hose 3, and the air filter end cap housing 2 is as straight as possible or the bending angle is as large as possible. Otherwise, it will lead to poor air intake of the engine, affecting fuel combustion efficiency, and thus affecting the engine's power output and exhaust emissions.

[0043] The advantages of adopting the above-mentioned preferred solution are: the air intake channel is set inside the fuel tank, which saves space and provides a stable air intake channel, avoiding the problem of the air filter intake hose collapsing due to pressure difference.

[0044] Preferred, such as Figure 2 As shown, the front end of the air intake channel 43 is the fuel tank outlet 42, and the rear end of the air filter intake hose 3 is sleeved on the fuel tank outlet 42 by a ring clamp 10.

[0045] The advantages of adopting the above-mentioned preferred solution are: it helps to improve the stability of the connection between the air filter intake hose and the intake passage in the fuel tank.

[0046] Preferred, such as Figure 1 and Figure 2 As shown, the rear end of the air intake channel 43 is the fuel tank air intake 41, and the dustproof net 5 is detachably installed on the fuel tank air intake 41.

[0047] The advantages of adopting the above-mentioned preferred solution are: it facilitates the pre-filtration of air entering the air filter, prevents external weeds and particles from entering the air filter, improves the intake air quality of the engine, and extends the service life and maintenance cycle of the air filter.

[0048] Preferred, such as Figure 1 As shown, it also includes an engine cylinder head cover 9, on which the air filter 1 is mounted.

[0049] It should be noted that in a preferred embodiment of this utility model, the air filter 1 is installed at a certain angle on the engine cylinder head cover 9, thereby facilitating the side maintenance and upkeep of the air filter element 1.

[0050] The advantages of adopting the above preferred solution are: as part of the engine, the engine cylinder head cover provides support for the installation of the air filter, allowing the air filter to be installed above the engine, thus saving space inside the engine cover.

[0051] Preferred, such as Figure 1 As shown, the two ends of the air filter outlet hose 6 are connected to the front end of the air filter 1 and the turbocharger 7 respectively through the ring clamp 10.

[0052] The advantages of adopting the above preferred solution are: it helps to improve the stability of the air filter outlet hose connection and use.

[0053] A tractor including the aforementioned reverse air intake system.

[0054] The beneficial effects of this utility model are: it facilitates the application of the reverse air intake system to tractors and optimizes the design of the tractor's air intake system.

[0055] This invention provides a reverse-intake air intake system, integrating the intake channel with the fuel tank. This effectively solves the problem of difficulty in forward air intake caused by insufficient space inside the engine hood. Simultaneously, it provides pre-filtration for the built-in air filter, effectively extending its service life and maintenance cycle. Furthermore, it provides clean air to the engine, improving combustion efficiency and simultaneously enhancing engine performance and fuel economy.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A reverse-suction air intake system, characterized in that, include: Air filter (1), air filter end cap housing (2), air filter intake hose (3), fuel tank (4), dust screen (5), air filter exhaust hose (6), turbocharger (7), and sealing mechanism (8); The air filter (1) is located above the engine. The rear end of the air filter (1) is connected to one end of the air filter end cap housing (2) through the sealing mechanism (8). The front end and rear end of the air filter intake hose (3) are connected to the end of the air filter end cap housing (2) away from the air filter (1) and the fuel tank (4), respectively. The dust screen (5) is located at the rear end of the fuel tank (4). The two ends of the air filter exhaust hose (6) are connected to the front end of the air filter (1) and the turbocharger (7), respectively. The dust screen (5), the fuel tank (4), the air filter intake hose (3), the air filter end cap housing (2), the air filter (1), and the air filter exhaust hose (6) are connected sequentially from back to front.

2. The reverse air intake system according to claim 1, characterized in that, The front end and rear end of the air filter end cap housing (2) are respectively the air outlet and the air inlet. The air outlet of the air filter end cap housing (2) is connected to the rear end of the air filter (1) through the sealing mechanism (8). The air inlet of the air filter end cap housing (2) is connected to the front end of the air filter inlet hose (3) through the ring clamp (10).

3. The reverse air intake system according to claim 2, characterized in that, The air filter (1) is provided with a plurality of swirl tubes (11) inside. The air outlet end of the air filter end cap housing (2) is connected to the rear end of the swirl tubes (11). The longitudinal cross-sectional area of ​​the air inlet end of the air filter end cap housing (2) is greater than the sum of the longitudinal cross-sectional areas of the rear ends of the plurality of swirl tubes (11).

4. The reverse air intake system according to claim 1, characterized in that, The sealing mechanism (8) includes: a sealing rubber ring (81), a connecting plate (82), and a plurality of fastening bolts (83); the sealing rubber ring (81) is adapted to be installed at the connection between the air filter end cap housing (2) and the air filter (1); the connecting plate (82) is in contact with the sealing rubber ring (81); the fastening bolts (83) pass through the connecting plate (82) and the sealing rubber ring (81) and are connected to the air filter end cap housing (2) and the air filter (1).

5. The reverse air intake system according to claim 1, characterized in that, The fuel tank (4) is provided with an air intake channel (43), which is a through hole.

6. The reverse air intake system according to claim 5, characterized in that, The front end of the air intake channel (43) is the fuel tank outlet (42), and the rear end of the air filter intake hose (3) is fitted onto the fuel tank outlet (42) by a ring clamp (10).

7. The reverse air intake system according to claim 5, characterized in that, The rear end of the air intake channel (43) is the fuel tank air inlet (41), and the dustproof net (5) is detachably installed on the fuel tank air inlet (41).

8. The reverse air intake system according to claim 1, characterized in that, It also includes an engine cylinder head cover (9), on which the air filter (1) is mounted.

9. The reverse air intake system according to claim 1, characterized in that, The two ends of the air filter outlet hose (6) are connected to the front end of the air filter (1) and the turbocharger (7) respectively through ring clamps (10).

10. A tractor, characterized in that, The air intake system includes the reverse air intake system described in any one of claims 1-9.

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