Gas compressor
US-2015132168-A1 · May 14, 2015 · US
Gas compressor
US2018030833A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018030833-A1 |
| Application number | US-201615550419-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 19, 2016 |
| Priority date | Feb 12, 2015 |
| Publication date | Feb 1, 2018 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A gas compressor is configured such that a suction-side area that is in sliding contact with the inner circumferential surface of a cylinder chamber when a compression chamber is in the suction stroke has a larger radius of curvature than that of a compression-side area that is in sliding contact with the inner circumferential surface of the cylinder chamber when the compression chamber is in the compression stroke.
First claim
Opening claim text (preview).
1 . A gas compressor comprising: a cylinder block in a cylindrical shape, having a cylinder chamber where to compress refrigerant; a rotor rotatably provided in the cylinder chamber, the rotor having an outer circumferential surface facing an inner circumferential surface of the cylinder chamber and a plurality of vane slots opening on the outer circumferential surface with intervals in a rotational direction of the rotor; and a plurality of vanes housed in the respective vane slots and biased in a direction of protruding from the outer circumferential surface, distal end surfaces of the vanes sliding on the inner circumferential surface along with rotation of the rotor, the vanes partitioning a space between the outer circumferential surface and the inner circumferential surface into a plurality of compression chambers in which the refrigerant is sucked and compressed, wherein the distal end surface of each of the vanes has a suction-side area that is in sliding contact with the inner circumferential surface when the compression chamber separated by the vane having the distal end surface is in a suction stroke, and a compression-side area that is in sliding contact with the inner circumferential surface when the compression chamber separated by the vane having the distal end surface is in a compression stroke, the suction-side area and the compression-side area have smaller radii of curvature than that of the inner circumferential surface, and the suction-side area has a larger radius of curvature than that of the compression-side area. 2 . The gas compressor according to claim 1 , wherein the compression-side area has a single radius of curvature. 3 . The gas compressor according to claim 1 , wherein an upstream portion and a downstream portion of the distal end surface in the rotational direction of the rotor constitute the suction-side area and the compression-side area, respectively. 4 . The gas compressor according to claim 1 , wherein a center of curvature of the suction-side area and a center of curvature of the compression-side area are arranged on a normal line to the distal end surface at a connection point between the suction-side area and the compression-side area. 5 . The gas compressor according to claim 1 , wherein the connection point between the suction-side area and the compression-side area is arranged downstream of a middle point of the distal end surface in the rotational direction.
Assignees
Inventors
Classifications
the inner and outer member being in contact along more than one line or surface · CPC title
- F01C21/0863Primary
the fluid being the working fluid · CPC title
the surfaces of the inner and outer member, forming the inlet and outlet opening · CPC title
using lift valves · CPC title
both members having co-operating elements in spiral form · CPC title
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Frequently asked questions
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- What does patent US2018030833A1 cover?
- A gas compressor is configured such that a suction-side area that is in sliding contact with the inner circumferential surface of a cylinder chamber when a compression chamber is in the suction stroke has a larger radius of curvature than that of a compression-side area that is in sliding contact with the inner circumferential surface of the cylinder chamber when the compression chamber is in t…
- Who is the assignee on this patent?
- Calsonic Kansei Corp
- What technology area does this patent fall under?
- Primary CPC classification F01C21/0863. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Feb 01 2018 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).