CN223344145U

CN223344145U - Engine arrangement structure with middle turbocharger

Info

Publication number: CN223344145U
Application number: CN202422495169.0U
Authority: CN
Inventors: 秦江福; 张志喜; 赵增亮; 董祥欢; 陈剑涛
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2024-10-15
Filing date: 2024-10-15
Publication date: 2025-09-16
Anticipated expiration: 2034-10-15

Abstract

This application relates to an engine layout structure with a mid-mounted turbocharger, comprising: a turbocharger, a supercharger mounting plate, and a gas flow duct. The supercharger mounting plate is positioned within the cylinder angle of a V-type engine, where the cylinder angle is the angle formed by the two groups of cylinders in the V-type engine. When the turbocharger is undergoing maintenance, it can avoid the obstruction of the frame ring beam, increasing the working space. Furthermore, the turbocharger is positioned above the cylinder, reducing the distance between the turbocharger and the cylinder. This allows the pressurized gas to enter the cylinder more quickly through the intake manifold to promote combustion, resulting in a faster turbine response.

Description

Engine arrangement structure with middle turbocharger

Technical Field

The application relates to the technical field of engines, in particular to an engine arrangement structure with a centrally-mounted turbocharger.

Background

To improve the fuel economy of a diesel engine, the diesel engine is typically an intake air supercharging system. The existing diesel engine adopts turbo charging mainly, because the pressure and the air quantity of the exhaust gas discharged by the diesel engine are larger than those of the exhaust gas discharged by the gasoline engine, and the pressure value required for driving the turbine blade is reached more quickly. The turbocharger system mainly comprises an exhaust manifold, a turbocharger, an intercooler and an intake manifold. Wherein, the air intake manifold is connected with the engine cylinder.

In diesel engines of 12 cylinders or larger, twin turbochargers are commonly employed to provide a sufficient amount of intake air. While twin turbochargers are more bulky, existing diesel engines typically mount the twin turbochargers on the engine side. In mining vehicles, in order to ensure the structural strength of the engine compartment, a frame ring beam with a larger caliber is designed to wrap the engine compartment, so that the space of the engine compartment is limited.

That is, when the turbocharger is required to be repaired and replaced, the space of the engine room is limited, and the turbocharger is located between the frame rails and the engine, resulting in a small repair work space and difficult operation.

Accordingly, the present disclosure provides an engine arrangement having a mid-set turbocharger.

Disclosure of utility model

In order to overcome the problems in the related art, the application provides an engine arrangement structure with a centrally-mounted turbocharger, comprising a turbocharger, a supercharger mounting plate, a pressure end pipeline and a vortex end pipeline;

The supercharger mounting plate is arranged in a cylinder included angle area of the V-shaped engine, the cylinder included angle area is positioned between included angles formed by two groups of cylinders of the V-shaped engine, and the cross section of the cylinder included angle area perpendicular to the arrangement direction of the cylinders is V-shaped;

The shape of the supercharger mounting plate is matched with the shape of the included angle area, and the turbocharger is mounted on the supercharger mounting plate;

the vortex end pipeline is used for circulating exhaust gas for driving the vortex end impeller, and the pressure end pipeline is used for circulating air compressed by the pressure end impeller.

In one embodiment, two turbochargers are provided, and the supercharger mounting plate is fixed on the outer wall of the cylinder body of the engine through screw holes.

In one embodiment, the supercharger mounting plate comprises a first turbine support plate and a second turbine support plate;

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

In one embodiment, the first turbine support plate and the second turbine support plate are juxtaposed perpendicular to the cylinder arrangement direction.

In one embodiment, the length direction of the vortex end pipe is arranged in the cylinder included angle area along the cylinder arrangement direction.

In one embodiment, the turbine-end pipe is fixed below the turbocharger mounting plate, the turbine-end pipe is fixed on the outer wall of the cylinder block of the engine, and the length direction of the turbine-end pipe is along the cylinder arrangement direction.

In one embodiment, the engine further comprises an intercooler, wherein the intercooler is connected with a compressed air outlet of the turbocharger and a cylinder body air inlet manifold of the engine.

In one embodiment, the turbocharger further comprises a lubricating oil pipeline, wherein the lubricating oil pipeline is communicated with a turbine shaft of the turbocharger and an oil storage tank.

In one embodiment, the engine further comprises a turbine cooling pipeline, wherein the turbine cooling pipeline is communicated with the turbocharger and the engine cooler.

The technical scheme provided by the application can comprise the following beneficial effects:

In the application, the turbocharger is arranged in the cylinder included angle area of the V-shaped engine and is arranged above the cylinder. The frame ring beam is circumferentially arranged around the side surface of the engine, and when the turbocharger is subjected to maintenance operation, the blocking of the frame ring beam can be avoided, so that the operation space is enlarged. Meanwhile, the turbocharger 1 is arranged above the cylinder, the distance between the turbocharger and the cylinder is reduced, the pressurized gas can enter the cylinder through the intake manifold more quickly to promote combustion, and the response speed of the turbine is increased.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

FIG. 1 is a schematic three-dimensional view of an engine arrangement according to an embodiment of the present application;

FIG. 2 is a front view of an engine arrangement shown in an embodiment of the present application;

FIG. 3 is another elevation view of an engine arrangement according to an embodiment of the present application;

the figures illustrate a turbocharger 1, a supercharger mounting plate 2, a cylinder angle area 3, a lubrication oil duct 4, a turbine cooling duct 5, a first turbocharger 11, a second turbocharger 12, a first turbine support plate 21, a second turbine support plate 22, and a turbine end duct 31.

Detailed Description

Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

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

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In order to improve the universality of the turbocharged diesel engine for different frame ring beam structures, the application provides an engine arrangement structure with a middle turbocharger, which is shown in fig. 1 and 2 and comprises a turbocharger 1, a supercharger mounting plate 2, a pressure end pipeline and a vortex end pipeline 31.

In a V-type engine, cylinders are divided into two groups and arranged along the longitudinal direction of a crankshaft. One end of a piston connecting rod of each cylinder is connected with a crankshaft, and two groups of cylinders are arranged together at a certain included angle, so that the two groups of cylinders form a plane with an included angle.

As shown in fig. 3, the cylinder angle area 3 is an angle area formed by two groups of cylinders of the V-type engine in a cross-sectional view looking at the direction of the cylinder arrangement. As indicated by the dotted line in fig. 3, the cylinder angle area 3 is V-shaped in cross section perpendicular to the direction of the cylinder arrangement.

Specifically, the supercharger mounting plate 2 is arranged in the cylinder included angle of the V-type engine. The turbocharger mounting plate 2 is matched with the shape of the cylinder included angle area 3, the turbocharger 1 is mounted on the turbocharger mounting plate 2, and a gas flow pipeline is connected with an engine cylinder for turbocharging gas flow. The gas flow passage is composed of a pressure end pipe and a vortex end pipe 31.

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

The turbocharger mounting plate 2 includes a first turbine support plate 21 and a second turbine support plate 22, corresponding to the turbocharger 1, and 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.

Structurally, the first and second turbo support plates 21 and 22 are juxtaposed perpendicular to the cylinder arrangement direction, and the first and second turbochargers 11 and 12 are installed above the cylinders.

In order to reduce the volume of the engine assembly, a vortex end pipe 31 of the embodiment of the present application is provided between the turbocharger 1 and the engine, and the length direction of the vortex end pipe 31 is along the cylinder arrangement direction.

Further, the gas flow pipeline further comprises an intercooler, and the intercooler is connected with the compressed air outlet of the double turbocharger 1 and the air inlet manifold.

Further, the turbocharger comprises a lubricating oil pipeline 4, wherein the lubricating oil pipeline 4 is communicated with a turbine shaft of the turbocharger 1 and an oil storage tank.

Further, the engine cooling device also comprises a turbine cooling pipeline 5, wherein the turbine cooling pipeline 5 is communicated with the turbocharger 1 and the engine cooler.

In the embodiment of the application, in order to improve the space utilization rate of the engine room, accessories such as a turbocharger 1, an exhaust pipe and the like are arranged in the cylinder included angle area 3 of the V-shaped engine, so that the engine structure assembly is more compact.

In the embodiment of the application, the turbocharger 1 is arranged in a cylinder included angle area 3 of the V-shaped engine and is arranged above a cylinder. The frame ring beam is circumferentially arranged around the side surface of the engine, so that the blocking of the frame ring beam can be avoided and the working space can be enlarged when the turbocharger 1 is subjected to maintenance work. Meanwhile, the turbocharger 1 is arranged above the cylinder, the distance between the turbocharger 1 and the cylinder is reduced, the pressurized gas can enter the cylinder through the intake manifold more quickly to promote combustion, and the response speed of the turbine is increased.

The foregoing description of embodiments of the application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed.

Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An engine arrangement with a mid-turbocharger is characterized by comprising a turbocharger (1), a supercharger mounting plate (2), a pressure end pipeline and a vortex end pipeline (31);

The supercharger mounting plate (2) is arranged in a cylinder included angle area (3) of the V-shaped engine, the cylinder included angle area (3) is positioned between included angles formed by two groups of cylinders of the V-shaped engine, and the cross section of the cylinder included angle area (3) perpendicular to the arrangement direction of the cylinders is V-shaped;

The shape of the supercharger mounting plate (2) is matched with the shape of the included angle area, and the turbocharger (1) is mounted on the supercharger mounting plate (2);

The vortex end pipeline (31) is used for circulating exhaust gas for driving the vortex end impeller, and the pressure end pipeline is used for circulating air compressed by the pressure end impeller.

2. An engine arrangement with a mid-mounted turbocharger according to claim 1, characterized in that the turbocharger (1) is provided in two, the supercharger mounting plate (2) being fixed to the outer wall of the block of the engine by screw holes.

3. An engine arrangement 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);

A first turbocharger (11) and a second turbocharger (12) are mounted on the first turbine support plate (21) and the second turbine support plate (22), respectively.

4. An engine arrangement 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 juxtaposed perpendicular to the cylinder arrangement direction.

5. An engine arrangement with a mid-set turbocharger according to claim 1, characterized in that the length direction of the scroll-end duct (31) is arranged in the cylinder angle area (3) along the cylinder arrangement direction.

6. An engine arrangement with a mid-set turbocharger as claimed in claim 1, wherein,

The turbine end pipeline (31) is fixed below the turbocharger (1) through the turbocharger mounting plate (2), the turbine end pipeline (31) is fixed on the outer wall of a cylinder body of the engine, and the length direction of the turbine end pipeline (31) is along the cylinder arrangement direction.

7. The engine arrangement with a mid-mounted turbocharger according to claim 1, further comprising an intercooler connecting the compressor outlet of the turbocharger (1) with the block intake manifold of the engine.

8. An engine arrangement with a mid-mounted turbocharger according to claim 1, further comprising a lubrication oil duct (4), the lubrication oil duct (4) communicating a turbine shaft of the turbocharger (1) with a sump.

9. An engine arrangement with a mid-mounted turbocharger according to claim 1, further comprising a turbine cooling duct (5);

The turbine cooling duct (5) communicates the turbocharger (1) with an engine cooler.