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US 11,286,936 B2Granted
Scroll compressor
AssigneeHanon Systems
InventorsHong Min Kim, Chi Myeong Moon, Kweon Soo Lim, Soo Cheol Jeong
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a scroll compressor, and it is possible to constitute a depressurized resistance value of a first orifice disposed on an oil recovery part to be lower than a depressurized resistance value of a second orifice, thereby maintaining/enhancing volume efficiency upon driving under a high pressure condition where a pressure of discharged refrigerant is high by increasing the back pressure of a back pressure chamber.
Claims19
A scroll compressor, comprising:
- a casing;
- a drive part disposed in a drive part accommodation space formed inside the casing and for rotating a drive shaft;
- a center head in which the drive shaft passes through and is disposed and connected to the casing;
- an orbiting scroll connected to the drive shaft;
- a fixed scroll fixed to the inside of the casing, and forming a compression chamber for compressing refrigerant by the interaction with the orbiting scroll;
- a discharge chamber formed on one side portion of the casing and through which the refrigerant is discharged;
- a back pressure chamber formed between the center head and the orbiting scroll;
- an oil recovery part for connecting an oil separator of the discharge chamber with a branch point branched to a back pressure chamber passage and a suction chamber passage formed in the center head, and for depressurizing the refrigerant and recovering oil;
- a first depressurized member disposed on a first oil recovery passage formed between the oil separator of the discharge chamber and the branch point in the oil recovery part, and for depressurizing the refrigerant;
- and
- a second depressurized member disposed on a second oil recovery passage formed between the branch point and the suction chamber passage in the oil recovery part, and for depressurizing the refrigerant,
- wherein a depressurized resistance value of the first depressurized member is smaller than a depressurized resistance value of the second depressurized member;
- wherein the first depressurized member comprises a first orifice, and a first spiral part wound a plurality of times is formed on an inner circumferential surface of the first orifice,
- wherein the second depressurized member comprises a second orifice, and a second spiral part wound a plurality of times is formed on an inner circumferential surface of the second orifice, and
- wherein a passage spacing (S1) formed by the first spiral part is greater than a passage spacing (S2) formed by the second spiral part.
12 more elements
A scroll compressor, comprising:
- a casing;
- a drive part disposed in a drive part accommodation space formed inside the casing and for rotating a drive shaft;
- a center head in which the drive shaft passes through and is disposed and connected to the casing;
- an orbiting scroll connected to the drive shaft;
- a fixed scroll fixed to the inside of the casing, and forming a compression chamber for compressing refrigerant by the interaction with the orbiting scroll;
- a discharge chamber formed on one side portion of the casing and through which the refrigerant is discharged;
- a back pressure chamber formed between the center head and the orbiting scroll;
- an oil recovery part for connecting an oil separator of the discharge chamber with a branch point branched to a back pressure chamber passage and a suction chamber passage formed in the center head, and for depressurizing the refrigerant and recovering oil;
- a first depressurized member disposed on a first oil recovery passage formed between the oil separator of the discharge chamber and the branch point in the oil recovery part, and for depressurizing the refrigerant;
- and
- a second depressurized member disposed on a second oil recovery passage formed between the branch point and the suction chamber passage in the oil recovery part, and for depressurizing the refrigerant,
- wherein a depressurized resistance value of the first depressurized member is smaller than a depressurized resistance value of the second depressurized member
- wherein the first depressurized member comprises a first orifice, and a first spiral part wound a plurality of times is formed on an inner circumferential surface of the first orifice,
- wherein the second depressurized member comprises a second orifice, and a second spiral part wound a plurality of times is formed on an inner circumferential surface of the second orifice, and
- wherein a length (L1) of the first orifice is shorter than a length (L2) of the second orifice.
12 more elements
A scroll compressor, comprising:
- a casing;
- a drive part disposed in a drive part accommodation space formed inside the casing and for rotating a drive shaft;
- a center head in which the drive shaft passes through and is disposed and connected to the casing;
- an orbiting scroll connected to the drive shaft;
- a fixed scroll fixed to the inside of the casing, and forming a compression chamber for compressing refrigerant by the interaction with the orbiting scroll;
- a discharge chamber formed on one side portion of the casing and through which the refrigerant is discharged;
- a back pressure chamber formed between the center head and the orbiting scroll;
- an oil recovery part for connecting an oil separator of the discharge chamber with a branch point branched to a back pressure chamber passage and a suction chamber passage formed in the center head, and for depressurizing the refrigerant and recovering oil;
- a first depressurized member disposed on a first oil recovery passage formed between the oil separator of the discharge chamber and the branch point in the oil recovery part, and for depressurizing the refrigerant;
- and
- a second depressurized member disposed on a second oil recovery passage formed between the branch point and the suction chamber passage in the oil recovery part, and for depressurizing the refrigerant,
- wherein a depressurized resistance value of the first depressurized member is smaller than a depressurized resistance value of the second depressurized member,
- wherein the first depressurized member comprises a depressurized check valve,
- wherein the second depressurized member comprises a second orifice, and a second spiral part wound a plurality of times is formed on an inner circumferential surface of the second orifice, and
- wherein a depressurized resistance value of the depressurized check valve is smaller than a depressurized resistance value of the second orifice.
12 more elements
A scroll compressor, comprising:
- a casing;
- a drive part disposed in a drive part accommodation space formed inside the casing and for rotating a drive shaft;
- a center head in which the drive shaft passes through and is disposed and connected to the casing;
- an orbiting scroll connected to the drive shaft;
- a fixed scroll fixed to the inside of the casing, and forming a compression chamber for compressing refrigerant by the interaction with the orbiting scroll;
- a discharge chamber formed on one side portion of the casing and through which the refrigerant is discharged;
- a back pressure chamber formed between the center head and the orbiting scroll;
- an oil recovery part for connecting an oil separator of the discharge chamber with a branch point branched to a back pressure chamber passage and a suction chamber passage formed in the center head, and for depressurizing the refrigerant and recovering oil;
- a first depressurized member disposed on a first oil recovery passage formed between the oil separator of the discharge chamber and the branch point in the oil recovery part, and for depressurizing the refrigerant;
- and
- a second depressurized member disposed on a second oil recovery passage formed between the branch point and the suction chamber passage in the oil recovery part, and for depressurizing the refrigerant,
- wherein a depressurized resistance value of the first depressurized member is smaller than a depressurized resistance value of the second depressurized member,
- wherein the first depressurized member comprises
- a depressurized check valve connected with the oil separator of the discharge chamber;
- and
- a first orifice disposed between the depressurized check valve and the branch point, and having a first spiral part wound a plurality of times formed on the outer circumferential surface thereof,
- wherein the second depressurized member comprises a second orifice having a second spiral part wound a plurality of times formed on the outer circumferential surface thereof, and
- wherein a total depressurized resistance value formed by the depressurized check valve and the first orifice is smaller than a depressurized resistance value of the second orifice.
15 more elements
A scroll compressor, comprising:
- a casing;
- a drive part disposed in a drive part accommodation space formed inside the casing and for rotating a drive shaft;
- a center head in which the drive shaft passes through and is disposed and connected to the casing;
- an orbiting scroll connected to the drive shaft;
- a fixed scroll fixed to the inside of the casing, and forming a compression chamber for compressing refrigerant by the interaction with the orbiting scroll;
- a discharge chamber formed on one side portion of the casing and through which the refrigerant is discharged;
- a back pressure chamber formed between the center head and the orbiting scroll;
- oil recovery part for connecting an oil separator of the discharge chamber with a branch point branched to a back pressure chamber passage and a suction chamber passage formed in the center head, and for depressurizing the refrigerant and recovering oil;
- a first depressurized member disposed on a first oil recovery passage formed between the oil separator of the discharge chamber and the branch point in the oil recovery part, and for depressurizing the refrigerant;
- and
- a second depressurized member disposed on a second oil recovery passage formed between the branch point and the suction chamber passage in the oil recovery part, and for depressurizing the refrigerant,
- wherein a depressurized resistance value of the first depressurized member is smaller than a depressurized resistance value of the second depressurized member,
- wherein the first depressurized member comprises a first orifice, and a first spiral part wound a plurality of times is formed on an inner circumferential surface of the first orifice,
- wherein the second depressurized member comprises a second orifice, and a second spiral part wound a plurality of times is formed on an inner circumferential surface of the second orifice, and
- wherein at least a portion of the inner surface of the first oil recovery passage is formed with an inner diameter expansion part having a greater spacing with the first orifice.
12 more elements
Dependencies are inferred from the claim text.