CN217206606U - Suction filter and engine - Google Patents

Abstract

The utility model discloses a strainer and an engine, the strainer comprises an oil suction pipe and a filter screen component, one end of the oil suction pipe is connected with the filter screen component, the other end is connected with the oil pump, the oil suction pipe comprises a plurality of connecting pipes, and the number of the connecting pipes is three or more; the oil suction pipe is arranged in the oil pan and used for sucking oil, and the oil suction pipe is connected with the oil pan through a ball joint structure. The engine includes the strainer described above. The utility model relates to the technical field of engines, a strainer and engine are provided, the automatically regulated of strainer is realized to the gravity and the inertia of usable strainer self to adapt to the machine oil liquid level slope condition, solve the not smooth problem of oil pump oil absorption under the different circumstances of traveling.

Description

Suction filter and engine

Technical Field

The present disclosure relates to engine technology, and more particularly to a strainer and an engine.

Background

Along with the high-speed development of automobile technology, the dynamic property of automobiles is better and better, in addition, underground garages and elevated frames are more and more in city construction, and the challenges of special sites and extreme driving on automobile products are larger and larger. For example, during traveling, when the vehicle is suddenly accelerated, decelerated, and steered in the left and right directions, the oil level is inclined in different directions in the oil pan. Particularly, under the condition of a ramp road, the ramp has a certain inclination angle, the oil level is inclined, and if the vehicle is accelerated rapidly in an uphill stage or decelerated rapidly in a downhill stage, the inclination of the oil level is more serious. The liquid level inclination can cause unsmooth oil absorption of an oil pump, short-time air absorption can occur under the limit condition, the lubricating capability is weakened, and the abrasion of an engine is accelerated.

At present, a main engine plant mainly has two methods for solving the problems, wherein the first method is to increase the filling amount of engine oil and improve the liquid level; the other is that an oil baffle plate is added in the oil pan to slow down the shaking of the oil level. The two methods need to improve the use cost and the manufacturing cost, have limited effect and are difficult to avoid the situation of poor oil absorption under the limit condition.

SUMMERY OF THE UTILITY MODEL

The application provides a strainer which is arranged in an oil pan and connected with the input end of an oil pump, the strainer comprises an oil suction pipe and a filter screen assembly, one end of the oil suction pipe is connected with the filter screen assembly, the other end of the oil suction pipe is connected with the oil pump, the oil suction pipe comprises a plurality of connecting pipes, and the number of the connecting pipes is three or more;

the oil pan is characterized in that the connecting pipes are connected in sequence, and two adjacent connecting pipes are connected through a ball joint structure and used for enabling the oil suction pipe to swing along with inertia in the oil pan.

Compared with the prior art, the technical scheme of the application can utilize gravity and inertia to realize the automatic adjustment of the strainer so as to adapt to the condition of the inclination of the liquid level of the engine oil and solve the problem of unsmooth oil absorption of the engine oil pump under different driving conditions.

In one possible design, the strainer assembly includes a strainer and a spherical weight, and the weight is connected to the oil suction pipe and used for pulling the oil suction pipe to submerge one end of the oil suction pipe under the liquid level of engine oil;

the counterweight block is provided with a plurality of oil inlet channels for guiding engine oil to enter the oil suction pipe, one end of each oil inlet channel is arranged on the outer wall of the counterweight block, and the other end of each oil inlet channel is communicated with the oil suction pipe;

the filter screen parcel is in outside the balancing weight for filter the entering engine oil of oil feed passageway.

According to one possible design, two adjacent connecting pipes comprise a first connecting pipe and a second connecting pipe, the ball joint structure comprises a ball seat and a ball head, the ball seat is arranged at one end of the first connecting pipe, the ball head is arranged at one end of the second connecting pipe, a cavity with an inner spherical surface is arranged in the ball seat, the ball head is provided with an outer spherical surface, and the ball head is arranged in the ball seat and is arranged to rotate in the ball seat;

a through hole penetrating through the bulb is formed in the bulb and is communicated with the first connecting pipe and the second connecting pipe.

In a possible design, an opening is formed in the ball seat, the ball head is inserted into the cavity, and one side of the cavity, which is opposite to the opening, is communicated with the first connecting pipe.

In one possible design, the ball seat is formed as a single piece with the first adapter, and the ball head is formed as a single piece with the second adapter.

In one possible design, the oil suction pipe is connected with the oil suction pipe through a ball joint structure.

In one possible design, the sum of the cross-sectional areas of the plurality of oil inlet passages is larger than the cross-sectional area of the connecting pipe.

In one possible embodiment, the connecting tube is provided as a rigid plastic or resin tube.

In one possible design, the outer wall of the ball seat is provided with a reinforcing rib for preventing the ball seat from deforming and separating from the ball head.

The application provides an engine, including above-mentioned strainer.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.

Drawings

The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.

FIG. 1 is a schematic view of a strainer according to an embodiment of the present application;

FIG. 2 is a schematic exploded view of the strainer of FIG. 1;

FIG. 3 is a schematic view of the connection tube of FIG. 1;

FIG. 4 is a schematic disassembled view of the connecting pipe mounting structure in FIG. 1;

FIG. 5 is a schematic view of the strainer of FIG. 1 during a rapid vehicle acceleration event;

fig. 6 is a schematic view of the strainer of fig. 1 in an uphill condition of the vehicle.

The reference numbers illustrate:

100 parts of an oil pump, 200 parts of an oil pan, 300 parts of engine oil, 400 parts of an oil suction pipe, 401 parts of a connecting pipe, 402 parts of a ball joint structure, 403 parts of a ball seat, 404 parts of a ball head, 405 parts of a first connecting pipe, 406 parts of a second connecting pipe, 407 parts of a cavity, 408 parts of a through hole, 409 parts of an opening, 500 parts of a filter screen assembly, 501 parts of a balancing weight and 502 parts of an oil inlet channel.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The problem of unsmooth oil absorption of an oil pump caused by inclined liquid level can be avoided by increasing the oil filling amount or increasing the oil baffle plate in the related oil pan, but the method can improve the use cost and the manufacturing cost, the effect is limited, and the unsmooth oil absorption condition is difficult to avoid under the limit condition. However, if a strainer of a flexible hose is used, the hose of the strainer may be easily flattened due to its softness, and the situation of poor oil absorption may occur.

Referring to fig. 1 to 6, a strainer according to an embodiment of the present invention is disposed in an oil pan 200 and connected to an input end of an oil pump 100, so as to extract oil 300 in the oil pan 200. The strainer includes an oil suction pipe 400 and a strainer assembly 500, wherein one end of the oil suction pipe 400 is connected to the strainer assembly 500, and the other end is connected to the oil pump 100, specifically, the oil suction pipe 400 includes a plurality of connection pipes 401, and the number of the connection pipes 401 is three or more. Meanwhile, the plurality of connecting pipes 401 are connected in sequence, and two adjacent connecting pipes 401 are connected through the ball joint structure 402, so that the oil suction pipe 401 can swing along with inertia in the oil pan 200. Therefore, the strainer can automatically adjust by utilizing the gravity and inertia of the strainer to adapt to the situation that the liquid level of the engine oil 300 is inclined, and the problem that the engine oil pump 100 cannot smoothly absorb oil under different driving conditions is solved.

As shown in fig. 1 and 2, the number of the connection pipes 401 is four, the diameter sizes of the four connection pipes 401 are the same, and the four connection pipes 401 need to be connected by three ball joint structures 402, but the number is not limited to four, and the number of the connection pipes 401 may be determined according to the size of the oil pan 200, the amount of engine oil, and the amplitude of liquid level swing. The connection pipe 401 is a hard pipe with a circular cross section, specifically a hard plastic pipe, but is not limited thereto, and may also be a hard pipe such as a resin pipe. A connection pipe 401 connected to the oil pump 100 is connected to a circular pipe at an input end of the oil pump 100 through a joint (not shown) to communicate the oil suction pipe 400 and the oil pump 100.

As shown in fig. 3 and 4, any two adjacent connection pipes may be divided into a first connection pipe 405 and a second connection pipe 406, and a lower end of the first connection pipe 405 is connected to an upper end of the second connection pipe 406. The ball joint structure 402 comprises a ball seat 403 and a ball head 404, wherein the ball seat 403 is located at one end of a first connecting pipe 405, a cavity 407 with an inner spherical surface is arranged in the ball seat 403, the cavity 407 is communicated with the space in the first connecting pipe 405, and the cavity 407 is provided with an opening 409 at the side facing away from the first connecting pipe 405; the inner spherical surface of the ball seat 403 has a diameter larger than the sectional diameter of the connection pipe 401. The ball head 404 is located at one end of the second connecting pipe 406, the ball head 404 is provided with an outer spherical surface, and the outer spherical surface is matched with the inner spherical surface of the cavity 407, so that the diameter of the outer spherical surface is larger than the diameter of the section of the connecting pipe 401; the ball head 404 is located in the ball seat 403 and can rotate in the ball seat 403, and a through hole 408 is formed in the ball head 404, one end of the through hole 408 extends to the space in the second connecting pipe 406, and the other end extends to the side far away from the second connecting pipe 406. The diameter of the opening 409 is smaller than the outer spherical surface of the ball head 404, so that the ball head 404 is prevented from being pulled out of the cavity 407, and the ball head 404 can be inserted into the cavity 407 through the opening 409 under the action of external force. In addition, the through hole 408 communicates the space in the first connection pipe 405 with the space in the second connection pipe 406 so that the oil can flow through the ball joint structure 402. The ball seat 403 and the first adapter 405 are formed as a single piece, and the ball head 404 and the second adapter 406 are formed as a single piece by injection molding. Therefore, by the matching of the outer spherical surface of the ball head 404 and the inner spherical surface of the ball seat 403, the ball head 404 can rotate relative to the ball seat 403, so that the second connecting pipe 406 can swing relative to the first connecting pipe 405 or rotate around the axis of the second connecting pipe 406, and the oil passing performance of the oil suction pipe 400 cannot be influenced.

As shown in fig. 2, since the adjacent connecting pipes 401 are structurally connected by the ball joints 402, the connecting pipes 401 have ball seats 403 and ball heads 404 at both ends, and the connecting pipes 401 have ball seats 403 or ball heads 404 at only one end.

In some exemplary embodiments, in the first connecting pipe 405 and the second connecting pipe 406 which are arranged up and down, the ball seat 403 is arranged at the upper end of the second connecting pipe 406, and the ball head 404 is arranged at the lower end of the first connecting pipe 405, so that a relatively-swinging connecting structure can be realized, and the oil passing performance is ensured.

As shown in fig. 1 and 2, the strainer assembly 500 includes a strainer (not shown) and a spherical weight 501, and the weight 501 is connected to the oil suction pipe 400 to pull the oil suction pipe 400 by its own weight to be close to the bottom of the oil pan 200, so that one end of the oil suction pipe 400 is submerged under the surface of the oil 300. The connecting pipe 401 connected to the strainer assembly 500 may be connected to the weight block 501 through a thread or a pipe hoop, the weight block 501 is provided with a plurality of oil inlet channels 502 for guiding engine oil to enter the oil suction pipe 400, one end of the oil inlet channel 502 is located on the outer wall of the weight block 501, and the other end is connected to the oil suction pipe 400, so that the engine oil 300 can enter the oil suction pipe 400 through the weight block 501. The filter (not shown) is a mesh, and is wrapped outside the weight 501 to filter the engine oil 300 entering the oil inlet channel 502. The counterweight 501 not only uses the self-weight to drive the oil suction pipe 400 to swing, but also can increase the opening area to ensure the flow of the engine oil 300, wherein the sum of the cross-sectional areas of all the oil inlet channels 502 is larger than the cross-sectional area of the connecting pipe 401.

In some exemplary embodiments, the outer wall of ball seat 403 is provided with a rib (not shown) that increases the strength of ball seat 403 and prevents ball seat 403 from deforming and falling off ball head 404.

In some exemplary embodiments, the oil suction pipe 400 may also be connected to a circular pipe at the input end of the oil pump 100 through a ball joint structure 402, so as to increase the swing amplitude of the oil suction pipe 400.

When the vehicle is at rest or runs at a constant speed, the oil level is relatively flat, as shown in fig. 1, the oil 300 is concentrated in the middle of the oil pan due to the gravity, and the strainer is also sunk at the bottom of the oil pan 200 due to the gravity, so that the oil pump 100 can normally absorb oil through the strainer. When the vehicle is on an uphill slope, as shown in fig. 6, because the slope has a certain inclination angle, the oil level will incline towards the rear end of the vehicle, and the filter screen assembly 500 of the strainer will move backwards by gravity, so that it is still below the liquid level, and the normal oil absorption is satisfied. When the vehicle is in a starting stage or runs at a rapid acceleration, as shown in fig. 5, although the vehicle is not inclined, the oil level swings to the rear end of the oil pan due to inertia, and the filter screen assembly 500 of the strainer moves backwards by inertia to be still below the oil level, so that normal oil absorption is met. Similarly, when the vehicle is going downhill, suddenly decelerates, turns left and right, and turns and accelerates or decelerates simultaneously, the strainer can be adjusted freely according to the inertia and gravity along with the moving direction of the vehicle, so that the strainer assembly 500 is always below the oil level, and the normal oil absorption of the engine in different limit driving modes of the vehicle is met.

In some exemplary embodiments, an engine includes the strainer described above.

Therefore, the collecting filter has simple and reliable structure, and can avoid the problem that the hose is too soft and is easy to suck flat compared with the collecting filter of the flexible hose. The engine with the strainer can reduce the filling amount of engine oil, and reduce the manufacturing cost of the engine and the maintenance cost of later customers. And the engine need not newly-increased spare part, or changes the structure, can just can solve the not smooth problem of engine oil absorption with the original strainer of this strainer direct replacement, avoids the not smooth engine damage that leads to of oil absorption, and engine oil pressure crosses lowly and causes vehicle engine oil trouble lamp alarm problem, promotes user experience.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While 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, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A strainer is arranged in an oil pan and connected with the input end of an oil pump, the strainer comprises an oil suction pipe and a filter screen assembly, one end of the oil suction pipe is connected with the filter screen assembly, and the other end of the oil suction pipe is connected with the oil pump;

the oil pan is characterized in that the connecting pipes are connected in sequence, and two adjacent connecting pipes are connected through a ball joint structure and used for enabling the oil suction pipe to swing along with inertia in the oil pan.

2. The strainer of claim 1 wherein said strainer assembly includes a strainer and a spherical weight, said weight being configured to engage said suction tube for pulling said suction tube to submerge one end of said suction tube below the oil level;

the counterweight block is provided with a plurality of oil inlet channels for guiding engine oil to enter the oil suction pipe, one end of each oil inlet channel is arranged on the outer wall of the counterweight block, and the other end of each oil inlet channel is communicated with the oil suction pipe;

the filter screen parcel is in outside the balancing weight for filter the entering engine oil of oil feed passageway.

3. The strainer of claim 1 wherein two adjacent connecting tubes comprise a first connecting tube and a second connecting tube, the ball joint structure comprises a ball seat and a ball head, the ball seat is disposed at one end of the first connecting tube, the ball head is disposed at one end of the second connecting tube, a cavity with an inner spherical surface is disposed in the ball seat, the ball head is provided with an outer spherical surface, and the ball head is disposed in the ball seat and is configured to rotate in the ball seat;

a through hole penetrating through the bulb is formed in the bulb and is communicated with the first connecting pipe and the second connecting pipe.

4. The strainer of claim 3 wherein the ball seat defines an opening for insertion of the ball head into the chamber, the opening having a diameter less than an outer diameter of the ball head, a side of the chamber opposite the opening communicating with the first nipple.

5. The strainer of claim 3 wherein the ball seat is integral with the first nipple and the ball head is integral with the second nipple.

6. The strainer of claim 1 wherein the oil suction tube is connected to the oil suction tube by a ball joint arrangement.

7. The strainer of claim 2 wherein the sum of the cross-sectional areas of the plurality of oil feed passages is greater than the cross-sectional area of the connecting tube.

8. A strainer according to any one of claims 1 to 7 wherein the connecting tubes are provided as rigid plastic or resin tubes.

9. A strainer according to any one of claims 3 to 5 wherein the outer wall of the ball seat is provided with ribs to prevent the ball seat from deforming out of the bulb.

10. An engine comprising a strainer according to any one of claims 1-9.

Images