Middle turbocharger assembly

Abstract

The utility model relates to a middle turbocharger assembly. The middle turbocharger assembly comprises a turbocharger and a turbocharger mounting plate which are mounted on an engine. The turbocharger is arranged in an air cylinder included angle area on the top face of a cylinder body of the engine, and the turbocharger mounting plate comprises a turbocharger fixing plate and a turbocharger supporting plate. The supercharger fixing plate is fixed to the top face of a cylinder body, and the supercharger supporting plate is fixedly connected to a pressure end shell, a vortex end shell and a rotating shaft shell of the turbocharger. In the invention, other parts exist in the included angle area of the air cylinder, and the rest space is not enough to respectively install supports of the pressing end and the vortex end. Therefore, the supercharger supporting plate is fixedly connected to the pressure rotating shaft shell of the turbocharger, the supercharger supporting plate is fixed along the axial gravity center of the rotating shaft of the turbocharger, and vibration of the supercharger can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to a mid-mounted turbocharger assembly. Background Art

[0002] To improve fuel economy, diesel engines typically incorporate an intake air boost system. Existing diesel engines primarily utilize turbocharging because diesel exhaust gas has greater pressure and volume than gasoline engines, allowing it to reach the required pressure to drive the turbine blades more quickly. A turbocharging system primarily consists of an exhaust manifold, turbocharger, intercooler, and intake manifold. The intake manifold connects to the engine cylinders.

[0003] In diesel engines, twin turbochargers are often used to provide sufficient intake air. However, twin turbochargers are larger in size and are usually installed on the crankshaft flywheel side of the engine, resulting in insufficient operating space when repairing and replacing the turbochargers.

[0004] In a V-type engine, the two cylinder banks are arranged in a V-shape, creating a cylinder angle area on the top surface of the cylinder block. Particularly in large diesel engines, this area is spacious enough to accommodate two turbochargers and their associated piping. In a conventional engine layout, the cylinder block is installed in the engine compartment with the top surface facing upward, making the cylinder angle area more accessible for maintenance.

[0005] However, conventional turbocharger layouts typically secure the turbocharger between the engine and the ring beam, effectively reducing turbocharger vibration. However, the lack of sufficient fixed support points in the cylinder angle area makes existing mid-mounted turbochargers prone to excessive vibration, leading to premature failure.

[0006] In order to reduce the vibration of a mid-mounted turbocharger, the present application provides a mid-mounted turbocharger assembly. Utility Model Content

[0007] To overcome the problems existing in the related art, the present application provides a mid-mounted turbocharger assembly, comprising: a turbocharger and a turbocharger mounting plate mounted on an engine;

[0008] The turbocharger is arranged in a cylinder angle area on the top surface of the cylinder block of the engine, and the cylinder angle cylinder is located between the angles formed by the two groups of cylinders of the V-type engine;

[0009] The supercharger mounting plate is fixed within the cylinder angle region;

[0010] The supercharger mounting plate includes a supercharger fixing plate and a supercharger supporting plate;

[0011] The supercharger support plate is perpendicular to the supercharger fixing plate, and the supercharger fixing plate is parallel to the top surface of the cylinder body;

[0012] The supercharger fixing plate is fixed to the top surface of the cylinder body, and the supercharger supporting plate is fixedly connected to the rotating shaft housing of the turbocharger.

[0013] In one embodiment, the turbocharger is further provided with a turbine joint, both ends of which are respectively connected to the turbine end air outlet and the air outlet pipe, and the air outlet pipe is connected to the exhaust system of the engine.

[0014] In one embodiment, the turbocharger is connected to a lubricating oil pipeline and a coolant pipeline.

[0015] In one embodiment, the lubricating oil pipeline connects the turbocharger and the cylinder lubricating oil pipeline, and the coolant pipeline connects the turbocharger and the cylinder cooling liquid pipeline.

[0016] In one embodiment, the supercharger mounting plate is further provided with pipeline fixing members for fixing the lubricating oil pipeline and the coolant pipeline.

[0017] In one embodiment, the pipeline fixing member further includes a first pipeline fixing member and a second pipeline fixing member;

[0018] The first pipe fixing member is arranged on the supercharger mounting plate, and the coolant pipe is fixed on the first pipe fixing member;

[0019] The second pipeline fixing member is provided on the coolant pipeline, and the lubricating oil pipeline is fixed on the second pipeline fixing member.

[0020] In one embodiment, at least two turbochargers are provided.

[0021] In one embodiment, the supercharger mounting plate includes a first supercharger support plate and a second supercharger support plate;

[0022] The first supercharger support plate and the second supercharger support plate are respectively used to fix the two turbochargers.

[0023] The technical solution provided by this application may have the following beneficial effects:

[0024] In this application, other components are present in the cylinder angle area, leaving insufficient space to mount the compression and turbine end brackets separately. Therefore, the supercharger support plate is further fixedly connected to the turbocharger shaft housing. In other words, the supercharger support plate is fixed axially along the turbocharger shaft at the turbocharger's center of gravity, effectively reducing supercharger vibration.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0027] Figure 1 This is a schematic diagram of the arrangement structure of a mid-mounted turbocharger assembly on an engine as shown in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of the partial structure of the mid-mounted turbocharger assembly shown;

[0029] Description of the accompanying drawings: engine 1, turbocharger 2, compression end housing 20, turbine end housing 21, shaft housing 22, turbine joint 23, supercharger mounting plate 3, supercharger fixing plate 30, supercharger support plate 31, first supercharger support plate 310, second supercharger support plate 311, pipeline fixing part 32, first pipeline fixing part 320, second pipeline fixing part 321, lubricating oil pipeline 4, coolant pipeline 5. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0031] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Example 1

[0034] Conventional turbocharger layouts typically secure the turbocharger between the engine and the ring beam, effectively reducing vibration. However, due to a lack of sufficient anchoring points in the cylinder angle area, existing mid-mounted turbochargers are prone to excessive vibration, leading to premature failure.

[0035] In order to reduce the vibration of a mid-mounted turbocharger, an embodiment of the present application provides a mid-mounted turbocharger assembly.

[0036] like Figure 1 As shown, the mid-mounted turbocharger assembly shown in the embodiment of the present application includes a turbocharger 2 and a turbocharger mounting plate 3 mounted on an engine 1 .

[0037] Specifically, the turbocharger 2 is disposed in a cylinder angle region on the top surface of the cylinder block of the engine 1 , and the cylinder angle region is located between the angles formed by two groups of cylinders of the V-type engine 1 .

[0038] The supercharger mounting plate 3 is fixed in the cylinder angle area.

[0039] Furthermore, in order to solve the problem that the turbocharger 2 lacks a fixed support point in the cylinder angle area, the supercharger mounting plate 3 includes a supercharger fixing plate 30 and a supercharger support plate 31 .

[0040] like Figure 2 As shown, the supercharger support plate 31 is perpendicular to the supercharger fixing plate 30, and the supercharger fixing plate 30 is parallel to the top surface of the cylinder body.

[0041] Specifically, when the cylinder block of the engine 1 is cast, screw holes are provided on its top surface. The supercharger fixing plate 30 is fixed to the top surface of the cylinder block by bolts.

[0042] The turbocharger 2 consists of a compressor impeller, a rotating shaft, and an exhaust impeller. The shaft is connected to the compressor and exhaust impellers at both ends. The exhaust impeller rotates in response to exhaust gas from the engine 1, which in turn drives the compressor impeller through the rotating shaft to compress air. The compressed air then enters the engine 1's intake system. Cooling and lubrication lines are also located between the rotating shaft and the housing at the shaft hole.

[0043] It is understood that the compression end of the turbocharger 2 is a component at one end of the compressor impeller, and the vortex end is a component at one end of the exhaust impeller. The compression end and the vortex end are connected by a rotating shaft.

[0044] Because the center of gravity of the turbocharger 2 is distributed between the compression end and the turbine end, when the turbine is operating, the vibration generated at the two ends where the center of gravity is concentrated is transmitted to the central rotating shaft, which is easily damaged after prolonged vibration. In the existing turbocharger assembly structure, brackets can be installed on the side walls of the engine compartment 1 to respectively fix the compression end housing 20 and the turbine end housing 21.

[0045] In this embodiment of the present application, other components are present in the cylinder angle area, leaving insufficient space to separately install the compression and turbine end brackets. Therefore, the supercharger support plate 31 is further fixedly connected to the shaft housing 22 of the turbocharger 2. In other words, the supercharger support plate 31 is fixed along the axial direction of the turbocharger 2's shaft at the turbocharger's center of gravity, effectively reducing supercharger vibration.

[0046] Example 2

[0047] Based on the mid-mounted turbocharger assembly of the first embodiment, the embodiment of the present application has other differences in the turbocharger 2 and the turbocharger mounting plate 3.

[0048] like Figure 2 As shown, the turbocharger 2 is further provided with a turbine joint 23 , both ends of which are respectively connected to the turbine end air outlet and the air outlet pipe, and the air outlet pipe is connected to the exhaust system of the engine 1 .

[0049] Furthermore, the turbocharger 2 is connected to a lubricating oil pipeline 4 and a cooling liquid pipeline 5. Specifically, the lubricating oil pipeline 4 connects the turbocharger 2 and the cylinder lubricating oil circuit, and the cooling liquid pipeline 5 connects the turbocharger 2 and the cylinder cooling liquid circuit.

[0050] In the embodiment of the present application, a pipeline fixing member 32 for fixing the lubricating oil pipeline 4 and the coolant pipeline 5 is further provided on the supercharger mounting plate 3 .

[0051] Further, such as Figure 2As shown, the pipeline fixing member 32 also includes a first pipeline fixing member 320 and a second pipeline fixing member 321. The first pipeline fixing member 320 is mounted on the supercharger mounting plate 3, and the coolant pipeline 5 is fixed to the first pipeline fixing member 320 and the pipeline fixing member 32. The second pipeline fixing member 321 is mounted on the coolant pipeline 5, and the lubricating oil pipeline 4 is fixed to the second pipeline fixing member 321.

[0052] In the embodiment of the present application, the lubricating oil pipeline 4 and the coolant pipeline 5 are fixed by the pipeline fixing member 32, which can prevent the pipeline joints of the two pipelines from being detached due to vibration.

[0053] In a large engine 1, multiple turbochargers 2 are usually required to meet the air intake requirements of the cylinders. Figure 1 As shown, the turbochargers 2 of the embodiment of the present application are provided with at least two.

[0054] Furthermore, the supercharger mounting plate 3 includes a first supercharger support plate 310 and a second supercharger support plate 311 ; the first supercharger support plate 310 and the second supercharger support plate 311 are respectively used to fix the two turbochargers 2 .

[0055] In the embodiment of the present application, fixing the lubricating oil pipeline 4, the coolant pipeline 5 and the turbocharger 2 on the turbocharger fixing plate 30 can reduce the vibration level of the entire turbocharger system and improve the operating stability of the engine.

[0056] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A mid-mounted turbocharger assembly, characterized in that: include: A turbocharger (2) and a turbocharger mounting plate (3) mounted on an engine (1); The turbocharger (2) is arranged in a cylinder angle region on the top surface of the cylinder block of the engine (1), and the cylinder angle region is located between the angles formed by two groups of cylinders of the V-type engine (1); The supercharger mounting plate (3) is fixed in the cylinder angle area; The supercharger mounting plate (3) includes a supercharger fixing plate (30) and a supercharger supporting plate (31); The supercharger support plate (31) is perpendicular to the supercharger fixing plate (30), and the supercharger fixing plate (30) is parallel to the top surface of the cylinder body; The supercharger fixing plate (30) is fixed to the top surface of the cylinder body, and the supercharger supporting plate (31) is fixedly connected to the rotating shaft housing (22) of the turbocharger (2).

2. A mid-mounted turbocharger assembly according to claim 1, characterized in that: The turbocharger (2) is further provided with a turbine joint (23), the two ends of which are respectively connected to the turbine end air outlet and the air outlet pipe, and the air outlet pipe is connected to the exhaust system of the engine (1).

3. The mid-mounted turbocharger assembly according to claim 1, characterized in that: The turbocharger (2) is connected to a lubricating oil pipeline (4) and a cooling liquid pipeline (5).

4. A mid-mounted turbocharger assembly according to claim 3, characterized in that: The lubricating oil pipeline (4) connects the turbocharger (2) and the cylinder lubricating oil circuit, and the cooling liquid pipeline (5) connects the turbocharger (2) and the cylinder cooling liquid circuit.

5. The mid-mounted turbocharger assembly according to claim 3, characterized in that: The supercharger mounting plate (3) is also provided with a pipeline fixing piece (32) for fixing the lubricating oil pipeline (4) and the cooling liquid pipeline (5).

6. A mid-mounted turbocharger assembly according to claim 5, characterized in that: The pipeline fixing member (32) further includes a first pipeline fixing member (320) and a second pipeline fixing member (321); The first pipeline fixing member (320) is arranged on the supercharger mounting plate (3), and the coolant pipeline (5) is fixed on the first pipeline fixing member (320); The second pipeline fixing member (321) is arranged on the coolant pipeline (5), and the lubricating oil pipeline (4) is fixed on the second pipeline fixing member (321).

7. The mid-mounted turbocharger assembly according to claim 1, characterized in that: At least two turbochargers (2) are provided.

8. A mid-mounted turbocharger assembly according to claim 7, characterized in that: The supercharger mounting plate (3) comprises a first supercharger support plate (310) and a second supercharger support plate (311); The first supercharger support plate (310) and the second supercharger support plate (311) are respectively used to fix the two turbochargers (2).

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