CN219345075U

CN219345075U - Compressor shell for engine

Info

Publication number: CN219345075U
Application number: CN202320263907.1U
Authority: CN
Inventors: 袁鹏; 杨芳文
Original assignee: Fengcheng Shengxin Machinery Manufacturing Co ltd
Current assignee: Fengcheng Shengxin Machinery Manufacturing Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-07-14
Anticipated expiration: 2033-02-21

Abstract

The utility model is applicable to the technical field of compressor shells, and provides a compressor shell for an engine. This compressor shell for engine through setting up a plurality of first minute casings and a plurality of second minute casings, and the shell of this compressor is partly split main casing and is more the festival for the whole quality of the majority part of whole compressor shell all becomes lighter, also can become simpler when the assembly, just also can improve the work efficiency when assembling, thereby has improved the practicality of this compressor shell.

Description

Compressor shell for engine

Technical Field

The utility model belongs to the technical field of compressor housings, and particularly relates to a compressor housing for an engine.

Background

The compressor is a component for improving air pressure by utilizing blades rotating at high speed to apply work to air in a gas turbine engine, an air flow inlet and an air flow outlet are arranged on a shell of the compressor, the air flow inlet is generally axially arranged, a flow channel is slightly tapered to reduce air inlet resistance, the air flow outlet is generally designed into a volute shape with the flow channel gradually expanding along the circumference, so that the high-speed air flow is continuously diffused there, and the total efficiency of the supercharger is improved.

The compressor is generally arranged at the front part of the aircraft engine and is used for compressing air, and the compressor is applied to the aircraft, so that the volume of the compressor is larger, and when the compressor is installed, the shell is split into a plurality of structures, but due to the material and the volume, the quality of a single part is still heavier, so that the compressor is inconvenient in the process of assembling, and the working efficiency is lower.

Disclosure of Invention

The utility model provides a compressor shell for an engine, which aims to solve the problems that the quality of a single part is still heavy due to the material and the volume of a shell part of the compressor, so that the assembly process is inconvenient and the working efficiency is low.

The utility model is realized in that the compressor shell for the engine comprises an inlet shell, a middle shell and an exhaust shell;

the rear end of the inlet shell is detachably provided with a plurality of first sub-shells, the middle-section shell is detachably arranged at the rear end of the first sub-shell at the tail end, the rear end of the middle-section shell is detachably provided with a plurality of second sub-shells, and the exhaust shell is detachably arranged at the rear end of the second sub-shell at the tail end; the inlet shell, the first sub-shells, the middle-segment shell, the second sub-shells and the exhaust shell are all connected with each other through flanges.

Preferably, the inlet housing, the plurality of first sub-housings, the middle-stage housing, the plurality of second sub-housings, and the exhaust housing are all positioned on the same straight line when they are connected to each other.

Preferably, the inner annular surfaces of the first sub-shells and the second sub-shells are respectively provided with a first mounting annular groove.

Preferably, the inner annular surface of the middle section shell is provided with a plurality of second mounting annular grooves at equal intervals along the length direction.

Preferably, the hollow cavity is formed in the shell wall of the middle section shell, a plurality of vent holes communicated with the interior of the hollow cavity are formed between the inner ring surface of the middle section shell and the second installation annular grooves, and a plurality of vent holes communicated with the interior of the hollow cavity are formed in the outer surface of the middle section shell in a penetrating manner.

Preferably, the outer surface of the middle section shell is fixedly connected with a plurality of lifting lugs.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the compressor shell for the engine, the plurality of first sub-shells and the plurality of second sub-shells are arranged, and the main shell part is divided into more sections by the shell of the compressor, so that the overall mass of most parts of the whole shell of the compressor is lighter, the assembly is simpler, the working efficiency in the assembly is improved, and the practicability of the shell of the compressor is improved.

Drawings

FIG. 1 is a schematic view of a plurality of shell segments according to the present utility model;

FIG. 2 is a schematic view showing the internal cross-sectional structure of the first sub-housing according to the present utility model;

fig. 3 is a schematic view showing an internal cross-sectional structure of the middle section shell in the present utility model.

In the figure: 1. an inlet housing; 2. a first sub-housing; 3. a middle section housing; 4. a second sub-housing; 5. an exhaust housing; 6. a flange plate; 7. a first mounting annular groove; 8. a hollow cavity; 9. a second mounting annular groove; 10. a vent hole; 11. an exhaust hole; 12. lifting lugs.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: a compressor housing for an engine, comprising an inlet housing 1, a middle section housing 3 and an exhaust housing 5; the rear end of the inlet housing 1 is detachably provided with a plurality of first sub-housings 2, the middle-section housing 3 is detachably provided with a plurality of second sub-housings 4 at the rear end of the endmost first sub-housing 2, and the exhaust housing 5 is detachably provided with the rear end of the endmost second sub-housing 4; the inlet housing 1, the first sub-housings 2, the middle-section housing 3, the second sub-housings 4 and the exhaust housing 5 are all connected with each other through a flange 6.

The inlet housing 1, the plurality of first sub-housings 2, the middle section housing 3, the plurality of second sub-housings 4, and the exhaust housing 5 are all positioned on the same straight line when they are connected to each other.

In this embodiment, the main casing portion is divided into more sections to form the plurality of first sub-casings 2 and the plurality of second sub-casings 4, so that the overall mass of most parts of the whole compressor casing becomes lighter, the assembly becomes simpler, the working efficiency in assembly can be improved, and the practicability of the compressor casing is improved.

The inlet shell 1, the first sub-shells 2, the middle-segment shell 3, the second sub-shells 4 and the exhaust shell 5 are mutually connected through the flange 6, and the flange 6 is used for connecting, so that the connection effect between the two components can be ensured to be always kept tight, and the overall stability of the compressor is ensured.

Further, the inner annular surfaces of the first sub-housings 2 and the second sub-housings 4 are respectively provided with a first mounting annular groove 7.

The inner annular surface of the middle section casing 3 is provided with a plurality of second mounting annular grooves 9 at uniform intervals along the length direction thereof.

In the present embodiment, the first mounting annular groove 7 and the second mounting annular groove 9 are each for mounting a stationary blade on the inner surface of the casing.

Further, the hollow cavity 8 is formed in the shell wall of the middle section shell 3, a plurality of vent holes 10 communicated with the interior of the hollow cavity 8 are formed between two adjacent second mounting annular grooves 9 on the inner ring surface of the middle section shell 3, and a plurality of vent holes 11 communicated with the interior of the hollow cavity 8 are formed in the outer surface of the middle section shell 3 in a penetrating manner.

In this embodiment, the inside of the compressor is communicated with the outside through the vent hole 10, the hollow cavity 8 and the vent hole 11, and the internal gas of the compressor can be discharged through the vent hole, so as to increase the air flow rate of the previous stages, avoid the overlarge attack angle of the air flow, generate separation and generate surge phenomenon.

Further, the outer surface of the middle section shell 3 is fixedly connected with a plurality of lifting lugs 12.

In this embodiment, the lifting lugs 12 facilitate lifting of the middle section housing 3 by a person during assembly of the compressor housing.

The working principle and the using flow of the utility model are as follows: after the compressor shell is installed, the main shell part is divided into more sections to form a plurality of first sub-shells 2 and a plurality of second sub-shells 4, so that the overall mass of most parts of the whole compressor shell is lighter, the assembly is simpler, the working efficiency in the assembly is improved, and the practicability of the compressor shell is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A compressor housing for an engine, characterized by: comprises an inlet shell (1), a middle shell (3) and an exhaust shell (5);

the rear end of the inlet shell (1) is detachably provided with a plurality of first sub-shells (2), the middle-section shell (3) is detachably arranged at the rear end of the endmost first sub-shell (2), the rear end of the middle-section shell (3) is detachably provided with a plurality of second sub-shells (4), and the exhaust shell (5) is detachably arranged at the rear end of the endmost second sub-shell (4);

the inlet shell (1), the first sub-shells (2), the middle-segment shell (3), the second sub-shells (4) and the exhaust shell (5) are all connected with each other through a flange plate (6).

2. A compressor housing for an engine as set forth in claim 1, wherein: the inlet shell (1), the first sub-shells (2), the middle-segment shell (3), the second sub-shells (4) and the exhaust shell (5) are all positioned on the same straight line when connected with each other.

3. A compressor housing for an engine as set forth in claim 1, wherein: the inner annular surfaces of the first sub-shells (2) and the second sub-shells (4) are respectively provided with a first installation annular groove (7).

4. A compressor housing for an engine as set forth in claim 1, wherein: the inner annular surface of the middle section shell (3) is uniformly provided with a plurality of second mounting annular grooves (9) at intervals along the length direction.

5. A compressor housing for an engine as set forth in claim 4, wherein: the inner ring surface of the middle section shell (3) is provided with a plurality of vent holes (10) communicated with the inside of the hollow cavity (8), and the outer surface of the middle section shell (3) is communicated with a plurality of vent holes (11) communicated with the inside of the hollow cavity (8).

6. A compressor housing for an engine as set forth in claim 1, wherein: the outer surface of the middle section shell (3) is fixedly connected with a plurality of lifting lugs (12).