Hermetic compressor having oil guide that surrounds rotating shaft
US-11692547-B2 · Jul 4, 2023 · US
Hermetic electric compressor
US2023121207A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023121207-A1 |
| Application number | US-202117907041-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 18, 2021 |
| Priority date | Sep 29, 2020 |
| Publication date | Apr 20, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
According to a hermetic electric compressor of the present invention, a discharge port 66a is placed downstream of eddying flow from the joint portion 66b, a bent portion 66c is formed between the joint portion 66b and the discharge port 66a, an imaginary plumb line 66aY of an opening surface formed on the discharge port 66a is oriented to a circumferential direction of a hermetic container 10, and fluid having a small lubrication oil content is taken out from the discharge port 66a utilizing eddying flow of mixture fluid of refrigerant and lubrication oil in a gap space between a compressing mechanism 20 and a motor section 30, thereby reducing a discharge amount from the hermetic container 10.
First claim
Opening claim text (preview).
1 . A hermetic electric compressor comprising a compressing mechanism and a motor section provided in a hermetic container, in which the compressing mechanism and the motor section are connected to each other through a drive shaft, the compressing mechanism is placed on one of sides in the hermetic container, the motor section is placed on an other side in the hermetic container, a discharge pipe is placed in a gap space between the compressing mechanism and the motor section, a discharge port of the discharge pipe extends into the gap space from a joint portion between the discharge pipe and the hermetic container, the drive shaft is pivotally supported by a bearing portion, an oil reservoir is formed in an inner bottom of the hermetic container, an oil supply passage which guides lubrication oil stored in the oil reservoir into the compressing mechanism and the bearing portion is formed in the drive shaft, refrigerant compressed in the compressing mechanism is discharged into the hermetic container, and the refrigerant discharged into the hermetic container becomes eddying flow in the gap space by rotation of the drive shaft, and is discharged to outside of the hermetic container from the discharge pipe, wherein the discharge port is placed downstream of the eddying flow from the joint portion. 2 . The hermetic electric compressor according to claim 1 , wherein a bent portion is formed between the joint portion and the discharge port. 3 . The hermetic electric compressor according to claim 2 , wherein, in the joint portion, the discharge pipe is vertically jointed to the hermetic container. 4 . The hermetic electric compressor according to claim 1 , wherein, in the joint portion, the discharge pipe is obliquely jointed to the hermetic container. 5 . The hermetic electric compressor according to claim 4 , wherein the discharge pipe 66 from the joint portion to the discharge port is formed as a straight pipe. 6 . The hermetic electric compressor according to claim 1 , wherein an imaginary plumb line of an opening surface formed on the discharge port is oriented to a circumferential direction of the hermetic container.
Assignees
Inventors
Classifications
Filtration; Moisture separation · CPC title
Fluid connections · CPC title
Casings · CPC title
- F04B39/04Primary
Measures to avoid lubricant contaminating the pumped fluid · CPC title
in the rotating shaft · CPC title
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Frequently asked questions
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- What does patent US2023121207A1 cover?
- According to a hermetic electric compressor of the present invention, a discharge port 66a is placed downstream of eddying flow from the joint portion 66b, a bent portion 66c is formed between the joint portion 66b and the discharge port 66a, an imaginary plumb line 66aY of an opening surface formed on the discharge port 66a is oriented to a circumferential direction of a hermetic container 10,…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04B39/04. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Apr 20 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).