Suction damping case

Patent metadata

Field	Value
Publication number	US-11905974-B2
Application number	US-201917042332-A
Country	US
Kind code	B2
Filing date	May 29, 2019
Priority date	Jun 27, 2018
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

Disclosed is a suction damping case. A refrigerant introduced into the suction damping case flows for a predetermined period of time at reduced pressure and speed, and then is discharged to the outside of the body, so that a damping function can be made. When the suction damping case is coupled to a rear housing, a hook and an embossing prevents the suction damping case from being separated.

First claim

What is claimed is:

1. A suction damping case for a compressor, which is installed between a suction chamber and a suction port formed on a rear housing of the compressor, the suction damping case comprising:
a body formed with a first section S 1 in which one cylindrical end thereof is opened to allow the refrigerant to be introduced thereinto and the introduced refrigerant moves along the inside thereof, and with a second section S 2 in which since the other end thereof is blocked by an end wall, the refrigerant moves in an axial direction thereof and then comes into contact with the end wall, so that the refrigerant flows for a predetermined period of time at reduced pressure and speed;
hooks formed integrally with the open end of the body;
an embossing protruding from an outer circumferential surface of the body,
a plurality of windows formed to pass through the body such that the refrigerant which has passed through the second section S 2 is discharged to the suction chamber,
wherein the hooks are formed to extend in a longitudinal direction of the body from the open end of the body, wherein the hooks are arranged to face each other as viewed from a top surface of the open end, and wherein a hook shape of the hooks protruding outward is formed asymmetrically with the hooks facing each other.

2. The suction damping case of claim 1 , wherein one end of the embossing is adjacent to the hooks and an other end extends in a longitudinal direction of the body.

3. The suction damping case of claim 1 , wherein the body is inserted into the rear housing, the embossing comes in close contact with an inner circumferential surface of the rear housing.

4. The suction damping case of claim 1 , wherein the hooks prevent the damping case from moving in the axial direction with respect to a direction in which the damping case is coupled, and the embossing prevents the damping case from rotating in a circumferential direction thereof.

5. The suction damping case of claim 1 , wherein the embossing protrudes in a circumferential direction of the body.

6. The suction damping case of claim 1 , wherein the windows are spaced at the same interval in a circumferential direction of the body.

7. The suction damping case of claim 1 , wherein the hooks are configured to be inserted into a hook groove formed in a position of the rear housing which corresponds to the hooks.

8. The suction damping case of claim 1 , wherein a window is formed in the first section S 1 of the body.

9. The suction damping case according to claim 1 installed in a variable compressor where the suction damping cases are installed.

10. A suction damping case for a compressor, which is installed between a suction chamber and a suction port formed on a rear housing of the compressor, the suction damping case comprising:
a body formed with a first section S 1 in which one cylindrical end thereof is opened to allow the refrigerant to be introduced thereinto and the introduced refrigerant moves along the inside thereof, and with a second section S 2 in which since the other end thereof is blocked by an end wall, the refrigerant moves in an axial direction thereof and then comes into contact with the end wall, so that the refrigerant flows for a predetermined period of time at reduced pressure and speed;
hooks formed integrally with the open end of the body;
an embossing protruding from an outer circumferential surface of the body,
a plurality of windows formed to pass through the body such that the refrigerant which has passed through the second section S 2 is discharged to the suction chamber,
wherein the embossing extends from the hooks to a window of the plurality of windows, and an extended end is located between the plurality of windows.

11. The suction damping case according to claim 10 installed in a variable compressor where the suction damping cases are installed.

12. A suction damping case for a compressor, which is installed between a suction chamber and a suction port formed on a rear housing of the compressor, the suction damping case comprising:
a body formed with a first section S 1 in which one cylindrical end thereof is opened to allow the refrigerant to be introduced thereinto and the introduced refrigerant moves along the inside thereof, and with a second section S 2 in which since the other end thereof is blocked by an end wall, the refrigerant moves in an axial direction thereof and then comes into contact with the end wall, so that the refrigerant flows for a predetermined period of time at reduced pressure and speed;
hooks formed integrally with the open end of the body;
an embossing protruding from an outer circumferential surface of the body,
a plurality of windows formed to pass through the body such that the refrigerant which has passed through the second section S 2 is discharged to the suction chamber,
wherein the embossing is formed in a longitudinal direction of the body and is located between the hooks formed in a circumferential direction of the body.

13. A variable compressor comprising the suction damping case of claim 12 .

14. A suction damping case for a compressor, which is installed between a suction chamber and a suction port formed on a rear housing of the compressor, the suction damping case comprising:
a body formed with a first section S 1 in which one cylindrical end thereof is opened to allow the refrigerant to be introduced thereinto and the introduced refrigerant moves along the inside thereof, and with a second section S 2 in which since the other end thereof is blocked by an end wall, the refrigerant moves in an axial direction thereof and then comes into contact with the end wall, so that the refrigerant flows for a predetermined period of time at reduced pressure and speed;
a hook formed integrally with the open end of the body;
an embossing protruding from an outer circumferential surface of the body,
a plurality of windows formed to pass through the body such that the refrigerant which has passed through the second section S 2 is discharged to the suction chamber, and
an oil hole formed in the end wall.

15. The suction damping case of claim 14 , wherein the oil hole is formed in a direction in which gravity acts when the body is installed in the rear housing.

16. A variable compressor comprising the suction damping case of claim 14 .

17. A suction damping case for a compressor, which is installed between a suction chamber and a suction port formed on a rear housing of the compressor, the suction damping case comprising:
a body formed with a first section S 1 in which one cylindrical end thereof is opened to allow the refrigerant to be introduced thereinto and the introduced refrigerant moves along the inside thereof, and with a second section S 2 in which since the other end thereof is blocked by an end wall, the refrigerant moves in an axial direction thereof and then comes into contact with the end wall, so that the refrigerant flows for a predetermined period of time at reduced pressure and speed,
hooks formed integrally with the open end of the body,
an embossing protruding from an outer circumferential surface of the body,
a plurality of refrigerant holes which are spaced apart from each other in a circumferential direction and in a longitudinal direction of the body and are opened at different heights in the longitudinal direction of the body with respect to the end wall,
wherein the hooks are formed to extend in the longitudinal direction of the body from the end of the body, wherein the hooks are arranged to face each other as viewed fr

Assignees

• Hanon Systems

Inventors

• Namkoong Kyu
• Gong Seong Gyu
• Son Eun Gi
• Park Bok Ki
• Ahn Hew Nam

Classifications

• F04D29/667 Primary

  by influencing the flow pattern, e.g. suppression of turbulence · CPC title

• B60H1/3223

  characterised by the arrangement or type of the compressor (B60H1/3222 takes precedence) · CPC title

• F04D29/063

  specially adapted for elastic fluid pumps · CPC title

• F04D29/4213

  suction ports · CPC title

• F04B27/0891 Primary

  casings, housings · CPC title