Oil suction pipe of engine

Abstract

The utility model discloses an oil suction pipe of an engine. The oil suction pipe comprises a pipeline and an oil suction disc, the pipeline is a hollow pipeline with two open ends, and the upper end of the pipeline is an oil outlet; the oil suction disc is connected with the lower end of the pipeline, the whole oil suction disc is in a hollow rugby ball shape, the filter cover and the oil suction base are arranged in an up-and-down matched mode, and the filter screen is arranged between the filter cover and the oil suction base and divides the interior of the oil suction disc into an upper part and a lower part; a first through hole matched with the lower end of the pipeline is formed in the middle of the top end of the filtering cover, the lower end of the filtering cover is open and is a first opening, the first opening and the first through hole are coaxial, and the diameter of the first opening is 3-5 times that of the pipeline; the upper end of the oil suction base is open and is a second opening, the second opening and the first opening are identical in size, a round pipe communicated with the interior of the oil suction disc is arranged on the outer side face of the oil suction base and on the left side of the center line of the second opening, the two ends of the round pipe are open, the bottom opening is an oil inlet, and the diameter of the oil inlet is larger than that of the pipeline and smaller than that of the second opening.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an engine oil suction pipe. Background Technology

[0002] The engine lubrication system is a core subsystem ensuring its reliable operation, and the oil pan, as the container for storing engine oil, directly affects the oil supply efficiency of the lubrication pump through its internal oil suction port design. When the oil level is sufficient, the suction port can be completely submerged in the oil, achieving stable oil suction through the negative pressure of the oil pump. However, when the oil level in the oil pan decreases (such as due to normal oil consumption or the vehicle being tilted at a significant angle), the oil distribution area shrinks considerably, and the residual oil cannot form a sufficiently deep local oil pool. The suction port may be exposed above the oil surface, leading to pump suction cavitation, oil-air mixing, or even oil supply interruption, which in turn causes engine lubrication failure, abnormal wear of critical components, and other problems.

[0003] In the prior art, for example, CN218347440U proposes an oil suction pipe that automatically adapts to engine tilt, including an oil suction pipe body and a hose. A flange is fixed to one end of the oil suction pipe body, and fixing bolts are threaded around the inside of the flange. A fixing plate is fixed to the top of the hose, and threaded holes are formed around the surface of the fixing plate. The fixing bolts are threaded into the threaded holes. A filter element is fixed to the bottom of the hose, and a filter plate is fixedly connected inside the filter element. An oil suction port is connected to the bottom of the filter element, and a sliding ring is fitted onto the surface of the filter element. Several connecting posts are fixed to the surface, and floating rings are fixed to the outside of the connecting posts. A mounting block is fixed to the other end of the oil suction pipe body. Through holes are opened on both sides of the mounting block. This oil suction pipe, through the flexible hose and floating rings, ensures that the oil suction port is always below the oil level. For example, CN221647001U proposes an engine oil suction pipe that divides the oil suction pipe into a fixed section and a telescopic section. A buoyancy component is installed at the oil suction port. The filter cover can change with the oil level under the action of the telescopic section and the buoyancy component, ensuring that its inlet is always within the oil. The structures at both of these oil suction ports are complex, with many parts, making installation difficult and increasing the risk of parts falling off during use.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The purpose of this utility model is to propose an engine oil suction pipe to solve the technical problems in the prior art where, when the amount of engine oil in the oil pan decreases, the oil distribution range is greatly reduced, the residual oil is difficult to form a local oil pool of sufficient depth, the oil suction port is exposed above the oil surface, resulting in pump suction cavitation, oil-air mixing, or even oil cut-off.

[0006] Therefore, this utility model proposes an engine oil suction pipe.

[0007] Preferably, the present invention may also have the following technical features:

[0008] An engine oil suction pipe includes a pipe and an oil suction plate;

[0009] The pipeline is a hollow pipeline with openings at both ends, and its upper end is the oil outlet;

[0010] The oil suction plate is connected to the lower end of the pipeline. The oil suction plate is hollow in the shape of an oval and includes a filter cover, a filter screen and an oil suction base. The filter cover and the oil suction base are arranged in an upper and lower fit. The filter screen is arranged between the filter cover and the oil suction base, dividing the hollow space inside the oil suction plate into upper and lower parts.

[0011] The top center of the filter shroud is provided with a first through hole that mates with the lower end of the pipeline. The lower end of the filter shroud is open, forming a first opening. The first opening is coaxial with the first through hole, and the diameter of the first opening is 3 to 5 times the diameter of the pipeline.

[0012] The upper end of the oil-absorbing base is open, forming a second opening. The second opening has the same size as the first opening. A circular pipe communicating with the inside of the oil-absorbing plate is provided on the outer surface of the oil-absorbing base, to the left of the center line of the second opening. The circular pipe is open at both ends, and the bottom opening is an oil inlet. The diameter of the oil inlet is larger than the diameter of the pipe but smaller than the diameter of the second opening.

[0013] Specifically, it also includes a flange at the upper end of the pipeline, through which the upper end of the pipeline passes, and the flange cooperates with a fixed joint to fix the oil suction pipe to the engine oil pan.

[0014] Specifically, a pipe clamp is provided in the middle of the pipeline to fix the middle of the pipeline to the oil pan.

[0015] Specifically, a welding process is used to weld the oil suction plate to the lower end of the pipeline.

[0016] Specifically, a first flange is provided around the first opening at the lower end of the filter cover, and a second flange is provided around the second opening at the upper end of the oil-absorbing base, with the edge of the filter screen located between the first flange and the second flange.

[0017] Specifically, the filter screen is a steel wire mesh with a plurality of mesh openings, such that the throughput of the steel wire mesh is 30%.

[0018] The beneficial effects of this utility model compared with the prior art include: the oil suction pipe is provided with an oil suction base below the filter cover, so that the oil suction plate is hollow and rugby ball-shaped. A round pipe larger than the pipe and smaller than the second opening is provided on the side of the oil suction base and to the left of the center line of the second opening, which ensures the overall tilting ability of the engine. The oil inlet is small, so that the oil can still be sucked smoothly when the oil volume is low. When the engine tilts, the oil inlet is located to the left of the second opening, so that the actual oil inlet is centered, which improves the tilting ability of the engine. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the oil suction pipe installation according to a specific embodiment of this utility model.

[0020] Figure 2 This is a first schematic diagram of the oil suction pipe according to a specific embodiment of this utility model.

[0021] Figure 3 This is a second schematic diagram (section of the oil suction plate) of the specific embodiment of the present utility model.

[0022] Figure 4 This is a specific embodiment of the present utility model. Figure 3 Enlarged diagram of point C in the middle.

[0023] Explanation of reference numerals in the attached drawings: 01-pipeline; 02-suction plate; 21-filter cover; 211-first through hole; 212-first opening; 213-first flange; 22-filter screen; 23-suction base; 231-second opening; 232-round pipe; 233-oil inlet; 234-second flange; 03-flange; 04-fixed joint; 05-pipe clamp; 06-oil pan. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0025] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0026] An engine oil suction pipe, such as Figures 1-4As shown, it includes a pipe 01 and an oil suction plate 02. The pipe 01 is a hollow pipe with openings at both ends, and its upper end is the oil outlet. The oil suction plate 02 is connected to the lower end of the pipe 01. The oil suction plate 02 is hollow and rugby ball-shaped, including a filter cover 21, a filter screen 22, and an oil suction base 23. The filter cover 21 and the oil suction base 23 are arranged vertically. The filter screen 22 is disposed between the filter cover 21 and the oil suction base 23, dividing the hollow space inside the oil suction plate 02 into upper and lower parts. It can be understood that the filter screen 22 plays the role of filtering engine oil, and it has several mesh holes. Therefore, the division into two parts is not absolute, but only at the filter screen 22, the hollow space of the oil suction plate 02 is divided into upper and lower parts. The top center of the filter cover 21 is provided with a first through hole 211 that mates with the lower end of the pipe 01. The lower end of the filter cover 21 is open, forming a first opening 212. The first opening 212 is coaxial with the first through hole 211. The diameter of the first opening 212 is 3 to 5 times the diameter of the pipe 01. The side of the filter cover 21 is an outwardly convex arc shape. The side here refers to the connection part between the first through hole 211 and the first opening 212. The upper end of the oil-absorbing base 23 is open, forming a second opening 231. The second opening 231 is the same size as the first opening 212. A circular tube 232 communicating with the inside of the oil-absorbing plate 02 is provided on the outer surface of the oil-absorbing base 23 and to the left of the center line of the second opening 231. The circular tube 232 is open at both ends, and the bottom opening is an oil inlet 233. The diameter of the oil inlet 233 is larger than the diameter of the pipe 01 and smaller than the diameter of the second opening 231. Specifically, it can be 1.5 times the diameter of the pipe 01. When the engine is running, the oil in the oil pan 06 enters the oil suction base 23 from the oil inlet 233, passes through the filter screen 22, reaches the filter cover 21, enters the pipeline 01 from the opening at the lower end of the pipeline 01, and finally flows into the engine from the oil outlet to lubricate the various parts of the engine.

[0027] Typically, the oil suction plate 02 is located at the corner of the oil pan 06. The aforementioned oil suction pipe has an oil suction base 23 below the filter cover 21, making the oil suction plate 02 hollow and rugby ball-shaped. A round pipe 232, larger than the pipe 01 but smaller than the second opening 231, is provided on the side of the oil suction base 23 and to the left of the center line of the second opening 231. This ensures the overall tilting ability of the engine. The oil inlet 233 is small, so that oil can still be sucked smoothly when the oil level is low. When the engine tilts, the tilting ability of the engine is improved because the oil inlet 233 is located to the left of the second opening 231.

[0028] In some examples of this embodiment, a flange 03 is provided at the upper end of the pipe 01, through which the upper end of the pipe 01 extends. The flange 03 cooperates with a fixing joint 04 to fix the oil suction pipe to the engine oil pan 06. Specifically, to facilitate the fixing of the engine oil suction pipe, a pipe clamp 05 can be provided in the middle of the pipe 01 to fix the middle part of the pipe 01 to the oil pan 06, preventing the pipe 01 from shaking when the engine is running. To enhance the overall stability of the oil suction pipe, a section of the pipe 01 near the oil suction plate 02 is bent at 90°, so that the lower end of the pipe 01 is vertically inserted into the first through hole 211. Specifically, the pipe 01 and the oil suction plate 02 are made of metal material, and a welding process is used to weld the oil suction plate 02 to the lower end of the pipe 01.

[0029] Specifically, a first flange 213 is provided around the first opening 212 at the lower end of the filter cover 21, and a second flange 234 is provided around the second opening 231 at the upper end of the oil suction base 23. The edge of the filter screen 22 is located between the first flange 213 and the second flange 231 to fix the filter screen 22 inside the oil suction plate 02 and prevent the filter screen from falling off. Specifically, the filter screen 22 is a wire mesh with a plurality of mesh holes, such that the wire mesh has a throughput ratio of 30%, so that theoretically the oil flow area and flow rate through the oil inlet 233, the filter screen 22 and the lower opening of the pipeline 01 remain unchanged.

[0030] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0031] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. An engine oil suction pipe characterized by: The oil suction device comprises a pipeline and an oil suction disc. The pipeline is a hollow pipeline with both ends open, and the upper end is an oil outlet. The oil suction disc is connected with the lower end of the pipeline, and the whole oil suction disc is in the shape of a hollow rugby ball, comprising a filter cover, a filter screen and an oil suction base. The top end of the filter cover is provided with a first through hole matched with the lower end of the pipeline. The lower end of the filter cover is open, and the first through hole is coaxial with the first opening.

2. The engine oil suction pipe according to claim 1, characterized by: The upper end of the oil suction base is open, and the second opening has the same size as the first opening.

3. The engine oil suction tube of claim 1, wherein: A circular tube is arranged on the outer side of the oil suction base and on the left side of the center line of the second opening.

4. The engine oil suction tube of claim 1, wherein: The circular tube is open at both ends, and the bottom opening is an oil inlet.

5. The engine oil suction tube of claim 1, wherein: The diameter of the oil inlet is larger than that of the pipeline and smaller than that of the second opening.

6. The engine oil suction tube of claim 1, wherein: The upper end of the pipeline is provided with a flange plate, and the pipeline passes through the flange plate. The flange plate is matched with a fixed joint to fix the oil suction pipeline on the oil pan. A pipe clamp is arranged in the middle of the pipeline to fix the middle of the pipeline to the oil pan. The oil suction disc is welded with the lower end of the pipeline by using a welding process. A first flange is arranged around the first opening at the lower end of the filter cover, and a second flange is arranged around the second opening at the upper end of the oil suction base. The edge of the filter screen is arranged between the first flange and the second flange. The filter screen is a steel wire screen, and a plurality of mesh holes are arranged on the steel wire screen to make the passing ratio of the steel wire screen 30%.

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