CN212202171U - Suction filter and engine - Google Patents

Abstract

The utility model belongs to the technical field of the vehicle, a strainer and engine are disclosed. The strainer includes: the two oil absorption discs are respectively arranged in the oil pool side and the non-oil pool side of the oil pan; the oil suction disc comprises a shell, an oil suction port is formed in the bottom of the shell and used for sucking engine oil in an oil pan, an oil inlet hole is formed in the side wall of the shell and communicated with the engine oil pump; and the float valve core is arranged in the shell and is configured to be selectively blocked in the oil inlet hole. The strainer controls the float valve core in the oil suction disc to ascend or descend by utilizing the buoyancy of engine oil to control the opening and closing of the oil suction disc, realizes the selective communication between the engine oil pump and the two oil suction discs according to the switching of the inclination angle of the engine, realizes oil suction from the side when the engine inclines to the non-oil pool side at a larger angle, and can avoid the condition that the non-oil pool side is excessively contacted with moving parts such as a connecting rod, a crankshaft and the like due to the overhigh liquid level of the engine oil.

Description

Suction filter and engine

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a strainer and engine.

Background

An oil pump on the engine needs to absorb oil from an oil sump through an oil strainer, an oil suction opening is arranged at the front end of the oil strainer, the oil suction opening is generally in a flaring structure, a filter screen is arranged in the oil suction opening, and the filter screen has the function of primarily filtering the engine oil. Wherein, the oil pan is the container of storing engine oil, and the oil pan receives engine installation space restriction and is suitable for the requirement of engine inclination, designs a darker space in one side of oil pan, stores engine oil, for the oil pan side, is less than the oil pan side at the degree of depth of the opposite side of oil pan, for non-oil pan side, non-oil pan side and oil pan side communicate each other, form the same shape of ladle.

In the practical application of the existing engine, the engine is required to adapt to a larger inclination angle. When the engine inclines to the non-oil pool side at a larger angle, the oil level of the engine oil can touch moving parts such as a connecting rod crankshaft and the like, so that the problems of power loss, overhigh oil content of the air outlet of the respirator and the like are caused. In order to solve the problem, two oil pumps are used in the prior art, wherein one oil pump is responsible for continuously pumping the oil at the non-oil sump side into the oil sump side, and the other oil pump sucks the oil from the oil sump side. In this way, there are problems of difficult arrangement space, large power loss and high production cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a strainer and engine only use single oil pump just can realize just that the oil absorption from oil bath side or non-oil bath side makes the engine can satisfy great inclination demand.

To achieve the purpose, the utility model adopts the following technical proposal:

a strainer, comprising: the two oil absorption discs are respectively arranged in an oil pool side and a non-oil pool side of the oil pan; the oil absorption dish includes:

the oil pan comprises a shell, wherein an oil suction port is formed in the bottom of the shell and used for sucking engine oil in the oil pan, and an oil inlet hole is formed in the side wall of the shell and communicated with an engine oil pump;

the float valve core is arranged in the shell and is configured to be selectively blocked at the oil inlet.

Preferably, the float valve further comprises a filter screen, and the filter screen is arranged in the shell and is positioned below the float valve core.

Preferably, the housing includes:

a housing;

the oil inlet hole is formed in the inner shell, an oil inlet cavity is formed between the outer shell and the inner shell, and the oil inlet cavity is respectively communicated with the oil inlet hole and the oil pump.

Preferably, a vent hole is provided at the top of the housing.

Preferably, the oil pump further comprises an oil pipe assembly, and the oil pipe assembly is arranged between the oil pump and the oil suction disc and is communicated with the oil inlet.

Preferably, the tubing assembly comprises:

the main oil way is communicated with the oil pump;

and one end of the auxiliary oil way is communicated with one end of the main oil way which is not connected with the oil pump, and the other end of the auxiliary oil way is communicated with the oil inlet.

Preferably, the interior of the float valve core is provided with a sealing cavity.

Preferably, the float valve core is made of light materials.

Preferably, the number of the oil inlet holes is multiple, and the oil inlet holes are uniformly arranged along the circumferential direction of the shell.

In order to achieve the purpose, the utility model also provides an engine, including above-mentioned strainer.

The utility model has the advantages that:

the utility model provides a strainer, be provided with the float case through the inside at the casing, the float case is configured to selectivity shutoff in the inlet port, utilize the buoyancy of machine oil, the float case in the control oil absorption dish rises or descends, control opening and closing of oil absorption dish, switch according to engine inclination, realize the selectivity intercommunication of oil pump and two oil absorption dishes, thereby realize when the great angle of engine inclines to non-oil bath, absorb oil from this side, can avoid non-oil bath side because the too high of machine oil liquid level, and with the connecting rod, the condition of the too much contact of moving parts such as bent axle. By adopting the arrangement, oil suction from the oil pool side or the non-oil pool side can be realized by only using one oil pump, so that the engine can meet the requirement of a large inclination angle, the problems of difficult arrangement space and large power loss are solved, and the production cost is effectively reduced.

The utility model also provides an engine, including the strainer to satisfy the great demand in engine inclination.

Drawings

FIG. 1 is a schematic view of the strainer of the present invention in a horizontal position in an engine;

FIG. 2 is a schematic view of the strainer of the present invention tilted toward a non-oil sump side of the engine;

FIG. 3 is a schematic view of the strainer of the present invention;

fig. 4 is an exploded view of the strainer of the present invention.

In the figure:

100. an oil pan; 101. the oil pool side; 102. a non-oil sump side;

1. an oil suction disc; 2. filtering with a screen; 3. an oil pipe assembly;

11. a housing; 12. a float valve core;

111. an oil suction port; 112. an oil inlet hole; 113. a housing; 114. an inner shell; 115. an oil inlet cavity; 116. a vent hole;

31. a main oil path; 32. and an auxiliary oil path.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1-2, the internal space of the oil pan 100 is divided into a sump side 101 and a non-sump side 102, the depth of the sump side 101 is greater than that of the non-sump side 102, and the non-sump side 102 and the sump side 101 communicate with each other to form a scoop-like shape, subject to the restriction of the installation space of the engine and in order to meet the requirement of the inclination angle of the engine.

In order to ensure that the engine can adapt to a larger inclination angle, as shown in fig. 1-2, the present embodiment provides a strainer including two oil suction discs 1 which are communicated with each other, wherein the two oil suction discs 1 are respectively arranged in an oil pool side 101 and a non-oil pool side 102 of an oil pan 100, and oil pumps are respectively communicated with the two oil suction discs 1. As shown in fig. 3 to 4, each oil suction pan 1 includes a housing 11 and a float valve 12, the housing 11 is a hollow cylindrical structure, one side of the housing 11 is an open structure, that is, an oil suction port 111 is provided at the bottom of the housing 11 for sucking oil in the oil pan 100, and an oil inlet 112 is provided on a side wall of the housing 11, and the oil inlet 112 is communicated with an oil pump. A float valve 12 is disposed inside the housing 11, the float valve 12 is configured to selectively block the oil inlet 112, and the float valve 12 functions to open and close the oil inlet 112.

In the strainer provided in the present embodiment, when the engine is in a horizontal state as shown in fig. 1, the engine oil is concentrated to the oil sump side 101 of the oil pan 100 under the action of gravity, and for the oil suction plate 1 located at the oil sump side 101, the float valve 12 moves upward under the action of buoyancy and stops at the top of the housing 11, and at this time, the float valve 12 and the oil inlet 112 are arranged in a staggered manner, and the float valve 12 can open the oil inlet 112, so that the engine oil sucked from the oil suction port 111 enters the engine oil pump through the oil inlet 112; for the oil suction disc 1 on the non-oil pool side 102, because the oil level is low, the float valve 12 falls back to the bottom of the shell 11 of the oil suction disc 1 under the action of gravity, at this time, the float valve 12 and the oil inlet 112 are arranged just opposite to each other, the oil inlet 112 is sealed by the float valve 12 to close the oil inlet 112, so that an open circuit occurs between the oil suction disc 1 on the non-oil pool side 102 and the oil pump, and the oil pump sucks oil from the oil suction disc 1 on the oil pool side 101.

When the engine is inclined to the non-oil pool side 102 to a certain angle as shown in fig. 2, the oil level of the non-oil pool side 102 rises, and for the oil suction disc 1 located on the non-oil pool side 102, the float valve core 12 moves upwards under the action of buoyancy and stops at the top of the shell 11, at this time, the float valve core 12 and the oil inlet 112 are arranged in a staggered manner, and the float valve core 12 can open the oil inlet 112, so that the oil sucked from the oil suction port 111 enters the oil pump through the oil inlet 112; for the oil suction disc 1 located on the oil pool side 101, because the liquid level of the engine oil is low, the float valve core 12 falls back to the bottom of the shell 11 of the oil suction disc 1 under the action of gravity, at this time, the float valve core 12 and the oil inlet 112 are arranged just opposite to each other, the oil inlet 112 is sealed by the float valve core 12 to close the oil inlet 112, so that an open circuit occurs between the oil suction disc 1 located on the oil pool side 101 and the engine oil pump, and the engine oil pump sucks the oil from the oil suction disc 1 located on the non-oil pool side 102.

The filter is provided with a float valve core 12 in a shell 11, the float valve core 12 is configured to be selectively blocked at an oil inlet 112, the float valve core 12 in an oil suction disc 1 is controlled to ascend or descend by utilizing the buoyancy action of engine oil to control the opening and closing of the oil suction disc 1, the selective communication between an oil pump and two oil suction discs 1 is realized according to the switching of the inclination angle of an engine, so that the oil suction is realized from the non-oil pool side 102 when the engine inclines to the non-oil pool side 102 at a large angle, and the situation that the non-oil pool side 102 is excessively contacted with moving parts such as a connecting rod, a crankshaft and the like due to the overhigh liquid level of the engine oil can be avoided. By adopting the arrangement, oil suction from the oil pool side 101 or the non-oil pool side 102 can be realized by only using one oil pump, so that the engine can meet the requirement of a large inclination angle, the problems of difficult arrangement space and large power loss are solved, and the production cost is effectively reduced.

Further, as shown in fig. 3-4, the housing 11 includes an outer shell 113 and an inner shell 114 connected to each other, the inner shell 114 is disposed inside the outer shell 113, and both the outer shell 113 and the inner shell 114 are hollow cylindrical structures, so as to meet the requirement of light weight. Wherein, a circle of oil inlet holes 112 are provided on the inner wall cylindrical surface of the inner casing 114, so that the engine oil entering the inner casing 114 from the oil inlet can flow out from the oil inlet holes 112. The number of the oil inlet holes 112 is a plurality of, the oil inlet holes 112 are uniformly arranged along the circumferential direction of the shell 11, and the oil inlet holes 112 are arranged along the circumferential direction of the shell 11, so that the stability of the whole oil suction disc 1 in the oil suction process is ensured. An oil inlet cavity 115 is formed between the outer shell 113 and the inner shell 114, the oil inlet cavity 115 is respectively communicated with the oil inlet hole 112 and the oil pump, so that the oil is sucked into the inner shell 114 from the oil suction port 111 and enters the oil inlet cavity 115 through the oil inlet hole 112, and the oil inlet cavity 115 is used for storing the oil and plays a role of buffering.

Further, the float valve core 12 is arranged in the inner shell 114 of the housing 11, and the inner wall cylindrical surface of the inner shell 114 and the outer cylindrical surface of the float valve core 12 are installed in a matching manner, so that the float valve core 12 can freely slide up and down in the housing 11. The float valve core 12 is made of light materials, the float valve core 12 is preferably made of aluminum alloy or plastic, and a sealing cavity is arranged inside the float valve core 12, so that the inside of the float valve core 12 is of a sealed cavity structure, the float valve core 12 can float on the surface of engine oil conveniently, and the float valve core 12 is guaranteed to have certain buoyancy.

In order to reduce the interference of the float spool 12 during the movement, a vent hole 116 is provided at the top of the outer casing 113, when the float spool 12 slides upwards, the vent hole 116 can discharge air or oil, and the vent hole 116 is communicated with the atmosphere, so that the air pressure of the inner casing 114 and the atmosphere are balanced, and the vent hole 116 has a damping function to prevent the float spool 12 from frequently vibrating.

Further, the strainer 2 is provided in the inner casing 114 of the housing 11 below the float valve 12, and the strainer 2 is disposed below the float valve 12. The strainer 2 is mounted to the oil suction port 111 at the lowermost end of the casing 11, and the strainer 2 primarily filters the oil sucked up from the oil suction port 111 and prevents the float valve 12 from coming off. When the liquid level of the engine oil is low, the float valve core 12 falls onto the filter screen 2 under the action of gravity, and the filter screen 2 plays a role in limiting the float valve core 12.

Further, in order to realize the communication between the oil pump and the two oil suction discs 1, the strainer further comprises an oil pipe assembly 3, and the oil pipe assembly 3 is arranged between the oil pump and the oil suction discs 1 and is communicated with the oil inlet cavity 115, so that the oil pump can suck the oil from the oil inlet cavity 115 of the oil suction disc 1 through the oil pipe assembly 3. Specifically, the oil pipe assembly 3 includes a main oil passage 31 and an auxiliary oil passage 32, the main oil passage 31 is communicated with the oil pump, one end of the auxiliary oil passage 32 is communicated with one end of the main oil passage 31 which is not connected with the oil pump, and the other end of the auxiliary oil passage 32 is communicated with the oil inlet 112. The number of the auxiliary oil passages 32 is two, and each auxiliary oil passage 32 is communicated with the oil inlet cavity 115 of the corresponding oil suction disc 1, so that engine oil is sucked into the inner shell 114 from the oil suction port 111 and enters the oil inlet cavity 115 through the oil inlet hole 112, and then enters the engine oil pump from the oil inlet cavity 115 through the auxiliary oil passage 32 and the main oil passage 31 in sequence.

The embodiment also provides an engine comprising the filter so as to meet the requirement of large inclination angle of the engine.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to 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 do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A strainer, comprising: the oil suction discs (1) are communicated with each other, and the two oil suction discs (1) are respectively arranged in an oil sump side (101) and a non-oil sump side (102) of an oil sump (100); the oil suction pan (1) includes:

the oil pan comprises a shell (11), wherein an oil suction port (111) is formed in the bottom of the shell (11) and used for sucking engine oil in the oil pan (100), an oil inlet hole (112) is formed in the side wall of the shell (11), and the oil inlet hole (112) is communicated with an engine oil pump;

a float valve spool (12) disposed inside the housing (11), the float valve spool (12) configured to selectively block the oil inlet hole (112).

2. A strainer according to claim 1 further comprising a screen (2), the screen (2) being disposed within the housing (11) and below the float valve element (12).

3. A strainer according to claim 1 wherein the housing (11) comprises:

a housing (113);

the oil pump comprises an inner shell (114) arranged inside the outer shell (113), the oil inlet (112) is arranged on the inner shell (114), an oil inlet cavity (115) is formed between the outer shell (113) and the inner shell (114), and the oil inlet cavity (115) is communicated with the oil inlet (112) and the oil pump respectively.

4. A strainer according to claim 3 wherein a vent hole (116) is provided in the top of the housing (113).

5. The strainer of claim 1 further comprising an oil pipe assembly (3), wherein the oil pipe assembly (3) is disposed between the oil pump and the oil suction pan (1) and communicates with the oil inlet (112).

6. A strainer according to claim 5 wherein the oil pipe assembly (3) comprises:

a main oil passage (31) that communicates with the oil pump;

and one end of the auxiliary oil path (32) is communicated with one end of the main oil path (31) which is not connected with the oil pump, and the other end of the auxiliary oil path (32) is communicated with the oil inlet hole (112).

7. A strainer according to claim 1 wherein the interior of the float valve element (12) is provided with a sealed chamber.

8. A strainer according to claim 1 wherein the float valve element (12) is made of a lightweight material.

9. The strainer of claim 1 wherein the oil inlet hole (112) is plural in number, and the oil inlet holes (112) are uniformly arranged in a circumferential direction of the housing (11).

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

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