Oil cooler water inlet pipe with chip collecting function

Abstract

The invention discloses an engine oil cooler water inlet pipe with a chip collecting function and belongs to the technical field of engine cooling. The chip collecting pipe is a bent closed branch pipe and at least comprises two bent structures, the open end is communicated with the lower portion of the transverse flow pipe of the water inlet pipe body, the closed end is a detachable plug or valve, a gradually-expanding chip collecting cavity is formed in the chip collecting pipe, and the cross section of the chip collecting cavity is gradually increased from an inlet to the tail end. The scrap collecting pipe is used for guiding the impurities and the aluminum scraps to gather towards the area with the low flow speed through the hydrodynamic characteristics so as to collect the impurities and the aluminum scraps in the water way and prevent the impurities and the aluminum scraps from entering the engine oil cooler and other water way parts. The closed scrap collecting pipe is welded below the transverse flow pipe of the water inlet pipe of the engine oil cooler, impurities and aluminum scraps are guided to be gathered to a low-flow-speed area by utilizing the fluid dynamics principle, the problem that a cooling system is eroded and invalid by residual aluminum scraps and impurities in cylinder cover machining is solved, and the defects of flow resistance increase and cooling capacity attenuation caused by filter screen blockage are overcome.

Description

Technical Field

[0001] The invention relates to an oil cooler water inlet pipe with a chip collecting function, belonging to the technical field of engine cooling. Background Art

[0002] With the continued development of the automotive industry, cylinder head integrated exhaust designs have been widely adopted in high-efficiency internal combustion engines due to their ability to improve engine thermal efficiency. However, the water jacket structure of this design features multiple narrow cross-sections, which can cause aluminum chips and impurities generated during the cylinder head machining process to be easily trapped in narrow areas and difficult to completely remove through conventional cleaning processes. Under long-term engine operation, the retained aluminum chips and impurities may be continuously flushed by the coolant, and may break away from their original attachment points and enter the cooling water system. When such foreign matter flows into the oil cooler with the coolant, the continuous erosion can cause damage to the internal flow channels of the oil cooler. In extreme cases, it can even trigger a failure mode where the engine oil and coolant mix.

[0003] Existing technology uses a filter added to the water system to intercept foreign matter. However, the filter is subjected to the reciprocating impact of fine metal particles in the coolant for a long time, which makes it prone to fatigue cracking. At the same time, the direct impact of large-sized metal particles in the water jacket can also cause the filter structure to fail. In addition, impurities will gradually adhere to the surface of the filter due to long-term operation, significantly increasing the flow resistance of the cooling system, causing the coolant flow to decay, which in turn leads to a decrease in the engine cooling capacity and an abnormal increase in the working medium temperature. Summary of the Invention

[0004] In order to solve the problems existing in the background technology, the present invention provides an oil cooler water inlet pipe with a chip collecting function.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: an oil cooler water inlet pipe with a chip collection function, comprising a water inlet pipe body and a chip collecting pipe; the chip collecting pipe is a closed branch pipe, and the open end of the chip collecting pipe is connected to the cross flow pipe of the water inlet pipe body. The chip collecting pipe is used to guide impurities and aluminum chips to gather in areas with lower flow rates through fluid dynamic characteristics, so as to collect impurities and aluminum chips in the water channel and prevent impurities and aluminum chips from entering the oil cooler and other water channel parts.

[0006] Furthermore, the chip collecting tube is a curved tube.

[0007] Furthermore, the chip collecting tube includes at least two bending structures, the angles of the two bending structures are both 90°-180°, and the chip collecting tube forms a U-shaped or S-shaped channel through the two bending structures.

[0008] Furthermore, the diameter of the water inlet pipe body is Φ12-Φ20mm, the diameter of the chip collecting pipe is Φ8-Φ16mm, and the ratio of the diameter of the chip collecting pipe to the diameter of the water inlet pipe body is 1:1.1-1:1.5, and the connection angle α between the chip collecting pipe and the cross flow pipe of the water inlet pipe body is 45°.

[0009] Furthermore, the chip collecting pipe is located below the cross flow pipe.

[0010] Furthermore, the chip collecting tube is made of corrosion-resistant metal and the inner wall surface roughness is

[0011] ≤Ra1.6μm.

[0012] Furthermore, the closed end of the chip collecting tube is a detachable plug or valve.

[0013] Furthermore, the interior of the chip collecting tube is a gradually expanding chip collecting cavity, and the cross section of the chip collecting cavity gradually increases from the entrance to the end, with an increase ratio of 1:1.2-1:2.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention welds a closed chip collection tube beneath the cross-flow pipe of the oil cooler's water inlet pipe, utilizing the principles of fluid dynamics to guide impurities and aluminum chips toward low-flow areas. This effectively addresses the erosion and failure of the cooling system caused by residual aluminum chips and impurities from cylinder head machining. Compared to traditional filter structures, this eliminates the risk of filter rupture caused by metal particle impact and the increased flow resistance and reduced cooling capacity caused by filter blockage. Furthermore, a removable plug or valve design enables disassembly-free chip removal. Combined with a gradually expanding chip collection chamber structure and surface roughness control, this system reduces assembly costs and system maintenance complexity while maintaining efficient chip collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 yes Figure 1 Side view of;

[0018] Figure 3 yes Figure 2 AA cross-sectional view. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] An oil cooler water inlet pipe with a chip collection function includes an inlet pipe body 1 and a chip collection pipe 2; the chip collection pipe 2 is a closed branch pipe, and the open end of the chip collection pipe 2 is welded and connected to the cross flow pipe 3 of the inlet pipe body 1. The chip collection pipe 2 is used to guide impurities and aluminum chips to gather in an area with lower flow velocity through fluid dynamic characteristics, so as to collect impurities and aluminum chips in the water channel and prevent impurities and aluminum chips from entering the oil cooler and other water channel parts.

[0021] Furthermore, the chip collecting pipe 2 is a curved pipe, and the chip collecting pipe 2 is designed to be a channel with complex curves to improve the slag collecting efficiency.

[0022] Furthermore, the chip collecting tube 2 includes at least two bending structures, the angles of the two bending structures are both 90°-180°, and the chip collecting tube 2 forms a U-shaped or S-shaped channel through the two bending structures to extend the fluid path and enhance the chip collection effect, ensuring that impurities and aluminum chips are gathered in the chip collecting tube 2 and are not easily returned to the water inlet pipe body 1.

[0023] Furthermore, the diameter of the water inlet pipe body 1 is Φ12-Φ20mm, preferably Φ14mm, the diameter of the chip collecting pipe 2 is Φ8-Φ16mm, preferably Φ12mm, and the ratio of the diameter of the chip collecting pipe 2 to the diameter of the water inlet pipe body 1 is 1:1.1-1:1.5, so as to form a flow rate difference to drive impurity separation; the welding connection angle α of the chip collecting pipe 2 and the cross flow pipe 3 of the water inlet pipe body 1 is 45°, which facilitates welding and ensures a stable structure.

[0024] Furthermore, the chip collecting pipe 2 is located below the cross flow pipe 3 to optimize the fluid diversion effect.

[0025] Furthermore, the material of the chip collecting tube 2 is corrosion-resistant metal and the inner wall surface roughness is

[0026] ≤Ra1.6μm to reduce fluid resistance and improve erosion resistance.

[0027] Furthermore, the closed end of the chip collecting tube 2 is a detachable plug or valve, which is connected to the closed end of the chip collecting tube 2 via a threaded or clamping structure so as to regularly clean the collected impurities and aluminum chips.

[0028] Furthermore, the interior of the chip collecting tube 2 is a gradually expanding chip collecting chamber, and the cross section of the chip collecting chamber gradually increases from the entrance to the end, with an increase ratio of 1:1.2-1:2, so as to utilize the change in cross-sectional area to reduce the flow rate and deposit impurities.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An oil cooler water inlet pipe with a chip collection function, characterized by: The invention comprises a water inlet pipe body (1) and a chip collecting pipe (2); the chip collecting pipe (2) is a closed branch pipe, the open end of the chip collecting pipe (2) is connected to the cross flow pipe (3) of the water inlet pipe body (1), and the chip collecting pipe (2) is used to guide impurities and aluminum chips to gather in a region with lower flow velocity through fluid dynamic characteristics, so as to collect impurities and aluminum chips in the water channel and prevent the impurities and aluminum chips from entering the oil cooler and other water channel parts.

2. The oil cooler water inlet pipe with chip collection function according to claim 1, characterized in that: The chip collecting tube (2) is a curved tube.

3. The oil cooler water inlet pipe with chip collection function according to claim 2, characterized in that: The chip collecting tube (2) comprises at least two bending structures, the angles of the two bending structures are both 90°-180°, and the chip collecting tube (2) forms a U-shaped or S-shaped channel through the two bending structures.

4. The oil cooler water inlet pipe with chip collection function according to claim 3, characterized in that: The diameter of the water inlet pipe body (1) is Φ12-Φ20 mm, the diameter of the chip collecting pipe (2) is Φ8-Φ16 mm, and the ratio of the diameter of the chip collecting pipe (2) to the diameter of the water inlet pipe body (1) is 1:1.1-1:1.

5. The connection angle α between the chip collecting pipe (2) and the cross flow pipe (3) of the water inlet pipe body (1) is 45°.

5. The oil cooler water inlet pipe with chip collection function according to claim 4, characterized in that: The chip collecting pipe (2) is located below the cross flow pipe (3).

6. The oil cooler water inlet pipe with chip collection function according to claim 5, characterized in that: The chip collecting tube (2) is made of corrosion-resistant metal and has an inner wall surface roughness of ≤Ra1.6μm.

7. The oil cooler water inlet pipe with chip collection function according to claim 1 or 6, characterized in that: The closed end of the chip collecting pipe (2) is a detachable plug or valve.

8. The oil cooler water inlet pipe with chip collection function according to claim 7, characterized in that: The interior of the chip collecting tube (2) is a gradually expanding chip collecting cavity, and the cross section of the chip collecting cavity gradually increases from the entrance to the end, with an increase ratio of 1:1.2-1:2.

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