Scroll compressor with step
US-10634140-B2 · Apr 28, 2020 · US
Scroll compressor
US11460025B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11460025-B2 |
| Application number | US-202117531139-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 19, 2021 |
| Priority date | May 24, 2019 |
| Publication date | Oct 4, 2022 |
| Grant date | Oct 4, 2022 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A scroll compressor includes a scroll compression element including a movable scroll, a drive shaft configured to allow the movable scroll to rotate, a boss portion, and a sliding bearing. The boss portion is connected to a back surface of the movable scroll. The boss portion is configured to rotatably support an upper end portion of the drive shaft. The upper end of the drive shaft is configured as an eccentric shaft portion. The sliding bearing is provided between the boss portion and the eccentric shaft portion. An axially central portion of the boss portion is more rigid than a connection portion of the boss portion connected to the movable scroll. The boss portion is shaped so that the central portion projects outward.
First claim
Opening claim text (preview).
The invention claimed is: 1. A scroll compressor comprising: a scroll compression element including a movable scroll; a drive shaft configured to allow the movable scroll to rotate; a boss portion connected to a back surface of the movable scroll, the boss portion being configured to rotatably support an upper end portion of the drive shaft, and the upper end of the drive shaft being configured as an eccentric shaft portion; and a sliding bearing provided between the boss portion and the eccentric shaft portion, an axially central portion of the boss portion being more rigid than a connection portion of the boss portion connected to the movable scroll, the boss portion being shaped so that the axially central portion projects further outward than the connection portion and a distal end portion. 2. The scroll compressor of claim 1 , wherein the axially central portion of the boss portion is more rigid than a distal end portion of the boss portion. 3. The scroll compressor of claim 2 , wherein the axially central portion of the boss portion is thicker than the connection portion of the boss portion. 4. The scroll compressor of claim 2 , wherein the axially central portion of the boss portion has an inner portion made of a first material, and the connection portion of the boss portion is made of the first material, and an outer portion made of a second material that is more rigid than the first material. 5. The scroll compressor of claim 2 , wherein an end portion of the eccentric shaft portion has a recess. 6. The scroll compressor of claim 1 , wherein the axially central portion of the boss portion is thicker than the connection portion of the boss portion. 7. The scroll compressor of claim 6 , wherein an end portion of the eccentric shaft portion has a recess. 8. The scroll compressor of claim 1 , wherein the axially central portion of the boss portion has an inner portion made of a first material, and the connection portion of the boss portion is made of the first material, and outer portion made of a second material that is more rigid than the first material. 9. The scroll compressor of claim 8 , wherein an end portion of the eccentric shaft portion has a recess. 10. The scroll compressor of claim 1 , wherein an end portion of the eccentric shaft portion has a recess.
Assignees
Inventors
Classifications
- F04C18/0215Primary
where only one member is moving · CPC title
Details concerning the involute wraps or their base, e.g. geometry · CPC title
Shaft sleeves or details thereof · CPC title
for eccentric movement · CPC title
Bearing bushings or details thereof · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11460025B2 cover?
- A scroll compressor includes a scroll compression element including a movable scroll, a drive shaft configured to allow the movable scroll to rotate, a boss portion, and a sliding bearing. The boss portion is connected to a back surface of the movable scroll. The boss portion is configured to rotatably support an upper end portion of the drive shaft. The upper end of the drive shaft is configur…
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04C18/0215. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 04 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).