Engine arrangement structure with middle turbocharger

Abstract

The utility model relates to an engine arrangement structure with a middle turbocharger. The engine arrangement structure comprises the turbocharger, a turbocharger mounting plate and a gas circulation pipeline. The supercharger mounting plate is arranged in an air cylinder included angle of the V-shaped engine, and the air cylinder included angle is an included angle area formed by two sets of air cylinders of the V-shaped engine. When the turbocharger is subjected to maintenance operation, blocking of the frame ring beam can be avoided, and the operation space is increased. Meanwhile, the turbocharger is arranged above the air cylinder, the distance between the turbocharger and the air cylinder is reduced, supercharged gas can enter the air cylinder more quickly through the air inlet manifold to promote combustion, and the response speed of a turbine is increased.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to an engine arrangement structure with a mid-mounted turbocharger. 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] Twelve-cylinder and larger diesel engines typically use twin turbochargers to provide sufficient intake air. However, twin turbochargers are larger, and existing diesel engines typically mount them on one side of the engine. In mining vehicles, to ensure the structural strength of the engine compartment, a larger frame ring beam is designed to enclose the engine compartment, resulting in limited space in the engine compartment.

[0004] Therefore, when the turbocharger needs to be repaired or replaced, the space in the engine compartment is limited and the turbocharger is located between the frame ring beam and the engine, resulting in a small maintenance space and difficult operation.

[0005] Therefore, the present application provides an engine arrangement with a mid-mounted turbocharger. Utility Model Content

[0006] In order to overcome the problems existing in the related art, the present application provides an engine arrangement structure with a mid-mounted turbocharger, comprising: a turbocharger, a turbocharger mounting plate, a compression end pipe, and a turbine end pipe;

[0007] The supercharger mounting plate is arranged in a cylinder angle region of the V-shaped engine, wherein the cylinder angle region is located between the angles formed by two groups of cylinders of the V-shaped engine, and the cross section of the cylinder angle region perpendicular to the cylinder arrangement direction is V-shaped;

[0008] The supercharger mounting plate is adapted to the shape of the angled area, and the turbocharger is mounted on the supercharger mounting plate;

[0009] The turbine end pipe is used to circulate the exhaust gas that drives the turbine end impeller, and the pressure end pipe is used to circulate the air compressed by the pressure end impeller.

[0010] In one embodiment, two turbochargers are provided, and the turbocharger mounting plate is fixed to the outer wall of the cylinder body of the engine through screw holes.

[0011] In one embodiment, the supercharger mounting plate includes: a first turbine support plate and a second turbine support plate;

[0012] The first turbocharger and the second turbocharger are mounted on the first turbine support plate and the second turbine support plate, respectively.

[0013] In one embodiment, the first turbine support plate and the second turbine support plate are arranged side by side perpendicular to the cylinder arrangement direction.

[0014] In one embodiment, the length direction of the turbine end pipe is arranged along the cylinder arrangement direction within the cylinder angle region.

[0015] In one embodiment, the turbine end pipe is fixed to the supercharger mounting plate arranged below the turbocharger, the turbine end pipe is fixed to the outer wall of the cylinder body of the engine, and the length direction of the turbine end pipe is along the cylinder arrangement direction.

[0016] In one embodiment, an intercooler is further included; the intercooler is connected to the compressed air outlet of the turbocharger and the cylinder intake manifold of the engine.

[0017] In one embodiment, a lubricating oil pipeline is further included; the lubricating oil pipeline is connected to the turbine shaft and the oil storage tank of the turbocharger.

[0018] In one embodiment, a turbine cooling pipe is further included; the turbine cooling pipe is connected to the turbocharger and the engine cooler.

[0019] The technical solution provided by this application may have the following beneficial effects:

[0020] In this application, the turbocharger is installed in the cylinder angle area of ​​a V-type engine, above the cylinder. The frame ring beam is arranged circumferentially around the side of the engine. When the turbocharger is repaired, it can avoid the obstruction of the frame ring beam, increasing the working space. Furthermore, the placement of the turbocharger 1 above the cylinder reduces the distance between the turbocharger and the cylinder. This allows the pressurized gas to enter the cylinder more quickly through the intake manifold, promoting combustion and increasing the turbine's response speed.

[0021] 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

[0022] 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.

[0023] Figure 1 A three-dimensional schematic diagram of the engine arrangement structure shown in an embodiment of the present application;

[0024] Figure 2 A front view of the engine arrangement structure shown in an embodiment of the present application;

[0025] Figure 3 Another front view of the engine arrangement structure shown in an embodiment of the present application;

[0026] Description of the accompanying drawings: turbocharger 1, turbocharger mounting plate 2, cylinder angle area 3, lubricating oil pipeline 4, turbine cooling pipeline 5, first turbocharger 11, second turbocharger 12, first turbine support plate 21, second turbine support plate 22 and turbine end pipeline 31. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] In order to improve the versatility of turbocharged diesel engines for different frame ring beam structures, the present application provides an engine layout structure with a mid-mounted turbocharger, such as Figure 1 and Figure 2 As shown, it includes: a turbocharger 1, a turbocharger mounting plate 2, a compression end pipe and a vortex end pipe 31.

[0031] In a V-type engine, the cylinders are arranged in two groups along the length of the crankshaft. Each cylinder's piston connecting rod is connected to the crankshaft at one end, and the two groups of cylinders are arranged at a certain angle, so that the two groups of cylinders form a plane with an angle.

[0032] like Figure 3 As shown in FIG. 3 , in a cross-sectional view viewed in the direction of cylinder arrangement, the cylinder angle region 3 is the angle region formed by the two cylinder groups of the V-type engine. Figure 3 In the area marked by the dotted line, the cylinder angle area 3 has a V-shaped cross section perpendicular to the cylinder arrangement direction.

[0033] Specifically, the supercharger mounting plate 2 is positioned within the cylinder angle of a V-shaped engine. The supercharger mounting plate 2 conforms to the shape of the cylinder angle region 3, and the turbocharger 1 is mounted on the supercharger mounting plate 2. A gas flow channel connects the engine cylinders for turbocharging the gas flow. The gas flow channel consists of a compression end channel and a turbine end channel 31.

[0034] In the embodiment of the present application, in order to provide the required intake air volume for the large-displacement engine, the turbocharger 1 includes a first turbocharger 11 and a second turbocharger 12 .

[0035] Corresponding to the turbocharger 1 , the turbocharger mounting plate 2 includes: a first turbine support plate 21 and a second turbine support plate 22 ; the first turbocharger 11 and the second turbocharger 12 are mounted on the first turbine support plate 21 and the second turbine support plate 22 , respectively.

[0036] Structurally, the first turbine support plate 21 and the second turbine support plate 22 are arranged side by side perpendicular to the cylinder arrangement direction, and the first turbocharger 11 and the second turbocharger 12 are installed above the cylinders.

[0037] In order to reduce the volume of the engine assembly, the turbine end pipe 31 of the embodiment of the present application is arranged between the turbocharger 1 and the engine, and the length direction of the turbine end pipe 31 is along the cylinder arrangement direction.

[0038] Furthermore, the gas flow pipeline also includes an intercooler; the intercooler is connected to the compressed air outlet of the twin turbocharger 1 and the intake manifold.

[0039] Furthermore, it also includes a lubricating oil pipeline 4; the lubricating oil pipeline 4 is connected to the turbine shaft and the oil storage tank of the turbocharger 1.

[0040] Furthermore, it also includes a turbine cooling pipe 5; the turbine cooling pipe 5 connects the turbocharger 1 and the engine cooler.

[0041] In the embodiment of the present application, in order to improve the space utilization of the engine compartment, the turbocharger 1, exhaust pipe and other accessories are installed in the cylinder angle area 3 of the V-type engine, making the engine structure assembly more compact.

[0042] In this embodiment, the turbocharger 1 is installed in the cylinder angle region 3 of a V-type engine, above the cylinder. The frame ring beam is circumferentially arranged around the side of the engine. When performing maintenance on the turbocharger 1, the frame ring beam is avoided, increasing the working space. Furthermore, the placement of the turbocharger 1 above the cylinder reduces the distance between the turbocharger 1 and the cylinder, allowing the pressurized gas to enter the cylinder more quickly through the intake manifold, promoting combustion and increasing the turbine's response speed.

[0043] Various embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments.

[0044] Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein is selected to best explain the principles of the various embodiments, their practical applications, or improvements to the technology in the marketplace, or to enable other persons skilled in the art to understand the various embodiments disclosed herein.

Claims

1. An engine arrangement with a mid-mounted turbocharger, characterized in that: include: A turbocharger (1), a turbocharger mounting plate (2), a compression end pipe, and a vortex end pipe (31); The supercharger mounting plate (2) is arranged in a cylinder angle region (3) of a V-shaped engine, the cylinder angle region (3) being located between the angles formed by two groups of cylinders of the V-shaped engine, and the cross section of the cylinder angle region (3) perpendicular to the cylinder arrangement direction is V-shaped; The supercharger mounting plate (2) is adapted to the shape of the angled area, and the turbocharger (1) is mounted on the supercharger mounting plate (2); The turbine end pipe (31) is used for circulating the exhaust gas that drives the turbine end impeller, and the pressure end pipe is used for circulating the air compressed by the pressure end impeller.

2. The engine arrangement structure with a mid-mounted turbocharger according to claim 1, characterized in that: Two turbochargers (1) are provided, and the turbocharger mounting plate (2) is fixed to the outer wall of the cylinder body of the engine through screw holes.

3. The engine arrangement structure with a mid-mounted turbocharger according to claim 2, characterized in that: The supercharger mounting plate (2) comprises: a first turbine support plate (21) and a second turbine support plate (22); The first turbocharger (11) and the second turbocharger (12) are mounted on the first turbine support plate (21) and the second turbine support plate (22), respectively.

4. The engine arrangement structure with a mid-mounted turbocharger according to claim 3, characterized in that: The first turbine support plate (21) and the second turbine support plate (22) are arranged side by side perpendicular to the cylinder arrangement direction.

5. The engine arrangement structure with a mid-mounted turbocharger according to claim 1, characterized in that: The length direction of the turbine end pipe (31) is arranged in the cylinder angle region (3) along the cylinder arrangement direction.

6. The engine arrangement structure with a mid-mounted turbocharger according to claim 1, characterized in that: The vortex end pipe (31) is fixed to the supercharger mounting plate (2) and is arranged below the turbocharger (1). The vortex end pipe (31) is fixed on the outer wall of the cylinder body of the engine. The length direction of the vortex end pipe (31) is along the cylinder arrangement direction.

7. The engine arrangement structure with a mid-mounted turbocharger according to claim 1, characterized in that: It also includes an intercooler; the intercooler is connected to the compressed air outlet of the turbocharger (1) and the cylinder intake manifold of the engine.

8. The engine arrangement structure with a mid-mounted turbocharger according to claim 1, characterized in that: It also includes a lubricating oil pipeline (4); the lubricating oil pipeline (4) is connected to the turbine shaft and the oil storage tank of the turbocharger (1).

9. The engine arrangement structure with a mid-mounted turbocharger according to claim 1, characterized in that: Also included is a turbine cooling duct (5); The turbine cooling pipe (5) communicates with the turbocharger (1) and the engine cooler.

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