A turbocharger gas seal plate and core components

Abstract

The utility model provides a kind of turbocharger air seal plate and core component, turbocharger air seal plate is realized installation and sealing by plate body, realize basic lubricating oil circulation by the design of oil return groove, longitudinal central axis L is set as the consistent lubricating oil flow direction, and the length of longitudinal central axis L is greater than transverse central axis L, so that lubricating oil can obtain greater stroke on its flow path, so that lubricating oil can take away more heat;During the flow of lubricating oil, part of lubricating oil directly flows into lower half tank, another part of lubricating oil enters lower half tank after passing through upper half tank, when the size of upper half tank is set to be less than lower half tank, so that lower half tank can obtain better lubricating oil bearing effect, and the flow channel of the two streams of lubricating oil directly flowing into lower half tank from core component and flowing into lower half tank from upper half tank is more smooth, and then the various components in the core component lubricating system through which lubricating oil flows obtain more stable oil film, reduce the wear of each component.

Description

Technical Field

[0001] This utility model relates to the field of turbocharging technology, specifically to a turbocharger air seal plate and core components. Background Technology

[0002] A turbocharger generally includes a turbine end structure, a compressor end structure, and a core component located between the two. The air seal plate is an important part of the turbocharger. It is located between the core component and the compressor end structure. For the core component, the air seal plate can prevent the leakage of lubricating oil inside the core component. For the compressor end, the air seal plate can prevent the leakage of air drawn in by the compressor end.

[0003] In the core component lubrication system, lubricating oil flows in from the oil inlet at the top of the core component, passes through the internal structure of the core component and the air seal plate, and flows out from the return groove at the bottom, thereby realizing the circulation of lubricating oil. The side of the existing air seal plate that mates with the core component is generally provided with a circular return groove. When the lubricating oil passes through the air seal plate, the smoothness of the return oil in the circular return groove is low, resulting in low stability of the oil film in each component of the core component lubrication system and less heat carried by the return oil flow. Utility Model Content

[0004] The problem this invention aims to solve is to provide a turbocharger air seal plate with good oil return smoothness, and a core component with high oil film stability and high heat carried by the oil return flow.

[0005] The technical solution adopted by this utility model to solve the above problems is: a turbocharger air seal plate, which includes: One-plate body; and An oil return groove is provided on the side of the plate facing the core component; the oil return groove includes a longitudinal central axis L1 and a transverse central axis L2, the longitudinal central axis L1 is configured to have the same direction of lubricating oil flow, and the length of the longitudinal central axis L1 is greater than that of the transverse central axis L2; ​​the oil return groove includes an upper half groove and a lower half groove divided by the transverse central axis L2, and the size of the upper half groove is set to be smaller than that of the lower half groove.

[0006] Compared with existing technologies, the turbocharger air seal plate of this utility model achieves installation and sealing through the plate body, and realizes basic lubricating oil circulation through the design of the oil return groove. The longitudinal central axis L is set to be consistent with the flow direction of lubricating oil, and the length of the longitudinal central axis L is greater than that of the transverse central axis L, so that the lubricating oil can obtain a larger stroke in its flow path, thereby enabling the lubricating oil to carry away more heat. During the flow of lubricating oil, some lubricating oil flows directly into the lower half groove, and the other part of lubricating oil enters the lower half groove after passing through the upper half groove. When the size of the upper half groove is set to be smaller than that of the lower half groove, the lower half groove can obtain a better lubricating oil carrying capacity, and the flow channels of the two streams of lubricating oil flowing directly from the core component and flowing from the upper half groove into the lower half groove are smoother. In this way, the various components in the lubrication system through which the lubricating oil flows obtain a more stable oil film, thereby reducing the wear of various components.

[0007] The present invention relates to a turbocharger air seal plate, wherein the lubricating oil in the core component flows into the upper half-groove and the lower half-groove respectively; the lubricating oil flowing into the upper half-groove merges into the lower half-groove and then flows out.

[0008] The present invention provides a turbocharger air seal plate, which further includes: An outer flange; and An inner flange, wherein the inner flange has a rotor shaft channel; The oil return groove is disposed between the outer flange and the inner flange.

[0009] The present invention relates to a turbocharger air seal plate, wherein the outer flange has a sealing ring mounting groove disposed on the side.

[0010] The technical solution adopted by this utility model to solve the above problems is as follows: a core component, including the aforementioned turbocharger air seal plate, and further including: A component body, wherein the component body has an oil inlet channel for lubricating oil to pass through, a bearing channel, a turbine end oil groove and an impeller end oil groove respectively disposed at both ends of the bearing channel, an oil collection groove communicating with the turbine end oil groove and the impeller end oil groove, and an oil outlet channel. The upper half of the groove is configured to mate with the impeller end oil groove; the lower half of the groove is configured to communicate with the oil collection groove.

[0011] A core component of this utility model, wherein the component body further includes an air seal plate mounting groove and a limiting protrusion, the turbocharger air seal plate is disposed in the air seal plate mounting groove, and the outer flange is configured to abut against the limiting protrusion.

[0012] A core component of this utility model includes a bearing channel through which lubricating oil enters the bearing channel from the oil inlet channel, and then enters the turbine end oil groove and the area between the impeller end oil groove and the upper half groove from both ends of the bearing channel, so as to make the oil pressure at both ends of the bearing channel tend to be balanced.

[0013] A core component of this utility model includes an oil collection groove comprising a first groove and a second groove; lubricating oil in the turbine end oil groove enters the first groove, and lubricating oil between the impeller end oil groove and the upper groove flows into the space between the second groove and the lower groove, so that the oil pressure at both ends of the oil collection groove tends to be balanced. Attached Figure Description

[0014] Figure 1 This is a perspective view of a turbocharger air seal plate according to a preferred embodiment of the present invention; Figure 2 This is a front view schematic diagram of a turbocharger air seal plate according to a preferred embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of a turbocharger air seal plate according to a preferred embodiment of the present invention; Figure 4 This is a perspective view of the core components according to a preferred embodiment of the present utility model; Figure 5 This is a cross-sectional schematic diagram of the core components according to a preferred embodiment of the present utility model; Figure 6 This is a schematic diagram showing the flow direction of lubricating oil in the core component according to a preferred embodiment of the present invention. Detailed Implementation

[0015] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0016] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0017] Those skilled in the art should understand that the embodiments of the present invention described below and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principles of the present invention are shown and described in the following embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0018] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] Please see Figure 1-3 The diagram shows a turbocharger air seal plate, which includes a plate body 1 and an oil return groove 2; wherein the oil return groove 2 is disposed on the side of the plate body 1 facing the core component; the oil return groove 2 includes a longitudinal central axis L1 and a transverse central axis L2, the longitudinal central axis L1 is configured to have the same direction of lubricating oil flow, and the length of the longitudinal central axis L1 is greater than that of the transverse central axis L2; ​​the oil return groove 2 includes an upper half groove 21 and a lower half groove 22 divided by the transverse central axis L2, and the size of the upper half groove 21 is set to be smaller than that of the lower half groove 22.

[0020] In practical use, the turbocharger air seal plate of this utility model is installed and sealed through the plate body 1, and the basic lubricating oil circulation is achieved through the design of the oil return groove 2. The longitudinal central axis L1 is set to be consistent with the flow direction of the lubricating oil, and the length of the longitudinal central axis L1 is greater than that of the transverse central axis L2, so that the lubricating oil can obtain a larger stroke in its flow path, thereby allowing the lubricating oil to carry away more heat. During the flow of lubricating oil, some lubricating oil flows directly into the lower half groove 22, and the other part of the lubricating oil enters the lower half groove 22 after passing through the upper half groove 21. When the size of the upper half groove 21 is set to be smaller than that of the lower half groove 22, the lower half groove 22 can obtain a better lubricating oil carrying effect, and the flow channels of the two streams of lubricating oil flowing directly from the core component and flowing from the upper half groove 21 into the lower half groove 22 are smoother. In this way, the lubricating oil flows through the core component lubrication system and obtains a more stable oil film for each component, thereby reducing the wear of each component.

[0021] Please continue reading. Figure 1-3 The lubricating oil in the core component flows into the upper half-groove 21 and the lower half-groove 22 respectively; the lubricating oil flowing into the upper half-groove 21 flows into the lower half-groove 22 and then flows out; under this arrangement, the lubricating oil can flow through the upper half-groove 21 and the lower half-groove 22 respectively, the oil path is smoother, and the flow path of the lubricating oil is longer, so as to carry away more heat.

[0022] Please continue reading. Figure 1-3 It further includes an outer flange 3 and an inner flange 4; wherein the inner flange 4 has a rotor shaft channel 41; the oil return groove 2 is disposed between the outer flange 3 and the inner flange 4.

[0023] Specifically, the oil return groove 2 is formed by hollowing out between the outer flange 3 and the inner flange 4. The outer wall of the inner flange 4 also serves as the inner edge of the oil return groove 2, and the inner wall of the outer flange 3 serves as the outer edge of the oil return groove 2. The inner wall of the outer flange 3 is set to be larger at the top and smaller at the bottom, thus forming a layout where the size of the upper half groove 21 is smaller than that of the lower half groove 22. The rotor shaft channel 41 is set in the inner flange 4 so that the rotor shaft can pass through and obtain better lubrication.

[0024] Please continue reading. Figure 3 The outer flange 3 has a sealing ring mounting groove 31 disposed on the side; further, the side of the outer flange 3 is configured to be assembled with the core component to form a seal, and a sealing ring is disposed in the sealing ring mounting groove 31, thereby improving the sealing effect of the two.

[0025] Please continue reading. Figure 4-6The core component shown includes the aforementioned turbocharger air seal plate and a component body 5; wherein the component body 5 has an oil inlet channel 51 for lubricating oil to pass through, a bearing channel 52, a turbine end oil groove 53 and an impeller end oil groove 54 respectively disposed at both ends of the bearing channel 52, an oil collection groove 55 communicating with the turbine end oil groove 53 and the impeller end oil groove 54, and an oil outlet channel 56; the upper half groove 21 is configured to cooperate with the impeller end oil groove 54; the lower half groove 22 is configured to communicate with the oil collection groove 55.

[0026] In actual use, lubricating oil enters the bearing channel 52 from the oil inlet channel 51 to lubricate the suspension bearing and rotor shaft in the bearing channel. Then, it flows from the bearing channel 52 to both ends. One end flows into the oil collection channel 55 through the turbine end oil groove 53, and the other end flows into the oil collection channel 55 through the combined oil groove formed by the upper half groove 21 and the impeller end oil groove 54. Finally, the lubricating oil in the oil collection channel 55 flows out through the oil outlet channel 56 to achieve circulation and enable the various components in the core component to obtain a relatively stable oil film.

[0027] Please continue reading. Figure 5 The component body 5 further includes an air seal plate mounting groove 57 and a limiting protrusion 58, wherein the turbocharger air seal plate is disposed in the air seal plate mounting groove 57, and the outer flange 3 is configured to abut against the limiting protrusion 58.

[0028] Specifically, the turbocharger air seal plate is installed through an interference fit between the side of the outer flange 3 and the inner wall of the air seal plate mounting groove 57. When a sealing ring is provided in the sealing ring mounting groove 31, the sealing effect is enhanced, preventing lubricating oil from leaking out on one side of the turbocharger air seal plate and air from entering on the other side. The abutment between the outer flange 3 and the limiting protrusion 58 not only provides a limit for the turbocharger air seal plate but also provides sufficient strength for the turbocharger air seal plate to resist the air pressure on the other side, making the installation of the turbocharger air seal plate more secure. Furthermore, the limiting protrusion 58 is only provided in the upper half of the air seal plate mounting groove 57, that is, the upper half of the groove 21 where the lubricating oil flow requirement is smaller. The lower half of the groove 22, which needs to collect two streams of lubricating oil and has a larger flow requirement, does not have a limiting protrusion 58, thereby reducing the obstruction to the circulation of lubricating oil and making the flow of lubricating oil smoother.

[0029] Please continue reading. Figure 5 The lubricating oil enters the bearing channel 52 from the oil inlet channel 51, and then enters the turbine end oil groove 53 and the impeller end oil groove 54 and the upper half groove 21 from both ends of the bearing channel 52, so that the oil pressure at both ends of the bearing channel 52 tends to be balanced.

[0030] Specifically, the turbine end of the turbocharger is subjected to the impact of the high-temperature exhaust gas from the engine, so the temperature is high and the turbine end oil groove 53 has a large capacity and high oil pressure to remove more heat. The lubricating oil flows from the bearing channel 52 to the turbine end oil groove 53 and the impeller end oil groove 54 and the upper half groove 21 respectively. Since the upper half groove 21 is expanded by lengthening the longitudinal central axis L1, the combined oil groove formed by the impeller end oil groove 54 and the upper half groove 21 has a stronger oil storage function, thereby balancing the oil pressure of the turbine end oil groove 53 and making the oil film of each part in the core component more stable.

[0031] Please continue reading. Figure 5 The oil collection groove 55 includes a first groove 551 and a second groove 552; the lubricating oil in the turbine end oil groove 53 enters the first groove 551, and the lubricating oil between the impeller end oil groove 54 and the upper half groove 21 flows into the second groove 552 and the lower half groove 22, so that the oil pressure at both ends of the oil collection groove 55 tends to be balanced.

[0032] Specifically, the first tank 551 is also located at the turbine end and is subjected to the impact of the engine's high-temperature exhaust gas. Therefore, the first tank 551 has a large capacity and high oil pressure. The lubricating oil flows from the bearing channel 52 to the first tank 551 and between the second tank and the lower half tank 22. At the same time, the lubricating oil in the turbine end oil tank 53 enters the first tank 551, and the lubricating oil between the impeller end oil tank 54 and the upper half tank 21 flows into the second tank 552 and the lower half tank 22. Since the lower half tank 22 has been expanded by lengthening the longitudinal central axis L1, the combined oil tank formed between the second tank 552 and the lower half tank 22 has a stronger oil storage function, thereby balancing the oil pressure at both ends of the oil collection tank 55 and making the oil film of each part in the core component more stable.

[0033] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A turbocharger air seal plate, characterized in that, include: One plate (1); as well as An oil return groove (2) is provided on the side of the plate (1) facing the core component; the oil return groove (2) includes a longitudinal central axis L1 and a transverse central axis L2, the longitudinal central axis L1 is configured to have the same direction of lubricating oil flow, and the length of the longitudinal central axis L1 is greater than that of the transverse central axis L2; ​​the oil return groove (2) includes an upper half groove (21) and a lower half groove (22) divided by the transverse central axis L2, and the size of the upper half groove (21) is set to be smaller than that of the lower half groove (22).

2. The turbocharger air seal plate according to claim 1, characterized in that: The lubricating oil in the core component flows into the upper half-groove (21) and the lower half-groove (22) respectively; the lubricating oil flowing into the upper half-groove (21) flows into the lower half-groove (22) and then flows out.

3. The turbocharger air seal plate according to claim 1, characterized in that, Further includes: An outer flange (3); and An inner flange (4), wherein the inner flange (4) has a rotor shaft channel (41). The oil return groove (2) is disposed between the outer flange (3) and the inner flange (4).

4. The turbocharger air seal plate according to claim 3, characterized in that: The outer flange (3) has a sealing ring mounting groove (31) provided on the side.

5. A core component, comprising the turbocharger air seal plate according to any one of claims 3-4, characterized in that, include: A component body (5), wherein the component body (5) has an oil inlet channel (51) for lubricating oil to pass through, a bearing channel (52), a turbine end oil groove (53) and an impeller end oil groove (54) respectively disposed at both ends of the bearing channel (52), an oil collection groove (55) communicating with the turbine end oil groove (53) and the impeller end oil groove (54), and an oil outlet channel (56); The upper half groove (21) is configured to cooperate with the impeller end oil groove (54); the lower half groove (22) is configured to communicate with the oil collection groove (55).

6. The core component according to claim 5, characterized in that: The component body (5) further includes an air seal plate mounting groove (57) and a limiting protrusion (58), the turbocharger air seal plate is disposed in the air seal plate mounting groove (57), and the outer flange (3) is configured to abut against the limiting protrusion (58).

7. The core component according to claim 5, characterized in that: Lubricating oil enters the bearing channel (52) from the oil inlet channel (51), and then enters the turbine end oil groove (53) and the impeller end oil groove (54) and the upper half groove (21) from both ends of the bearing channel (52) respectively, so that the oil pressure at both ends of the bearing channel (52) tends to be balanced.

8. The core component according to claim 5, characterized in that: The oil collection channel (55) includes a first channel (551) and a second channel (552); the lubricating oil in the turbine end oil channel (53) enters the first channel (551), and the lubricating oil between the impeller end oil channel (54) and the upper half channel (21) flows into the second channel (552) and the lower half channel (22) so that the oil pressure at both ends of the oil collection channel (55) tends to be balanced.

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