Turbine engine duct
US-2018320801-A1 · Nov 8, 2018 · US
Vacuum pump and connection port used in vacuum pump
US2022106961A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022106961-A1 |
| Application number | US-202017426130-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 27, 2020 |
| Priority date | Feb 4, 2019 |
| Publication date | Apr 7, 2022 |
| Grant date | — |
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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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Abstract
Official abstract text for this publication.
Provided are a vacuum pump which can be reduced in size without reducing exhaust performance, and a connection port which is used in the vacuum pump. The connection port which connects the vacuum pump and an auxiliary pump includes an oval first opening connectable to the vacuum pump and a circular second opening connectable to the auxiliary pump, and a diameter dimension of the first opening is set to be smaller than a diameter dimension of the second opening in an axial direction of the vacuum pump.
First claim
Opening claim text (preview).
1 . A vacuum pump which sucks or exhausts gas between connected external equipment and the vacuum pump, wherein a connection port which connects the external equipment and the vacuum pump includes a non-circular first opening connectable to the vacuum pump and a circular second opening connectable to the external equipment, and a diameter dimension of the first opening is set to be smaller than a diameter dimension of the second opening in a direction perpendicular to a flow direction of the gas. 2 . The vacuum pump according to claim 1 , wherein an area of an opening cross section of the connection port perpendicular to the flow direction of the gas is set to be substantially constant from the first opening to the second opening. 3 . The vacuum pump according to claim 1 , wherein the first opening is formed into an oval shape, and a minor axis of the first opening is set so as to substantially match an axial direction of the vacuum pump. 4 . The vacuum pump according to claim 3 , wherein the connection port includes a heater mounting portion into which a heater for heating the connection port is insertable. 5 . The vacuum pump according to claim 4 , wherein the heater mounting portion is a hole formed into a tubular shape, and the heater mounting portion is provided such that a longitudinal direction of the heater mounting portion matches a major axis of the first opening. 6 . The vacuum pump according to claim 1 , wherein the connection port is formed of an aluminum alloy. 7 . A connection port which connects a vacuum pump and external equipment and allows gas to flow inside the connection port, the connection port comprising: a non-circular first opening connectable to the vacuum pump; and a circular second opening connectable to the external equipment, wherein a diameter dimension of the first opening is set to be smaller than a diameter dimension of the second opening in a direction perpendicular to a flow direction of the gas.
Assignees
Inventors
Classifications
- F04D19/04Primary
specially adapted to the production of a high vacuum, e.g. molecular pumps · CPC title
circular · CPC title
Outlet · CPC title
elliptical · CPC title
- F16L23/00Primary
Flanged joints (F16L13/00, F16L17/00, F16L19/00 take precedence; adjustable joints F16L27/00; for hoses F16L33/00; couplings of the quick-acting type F16L37/00; for double-walled or multi-channel pipes, or pipe assemblies F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00) · CPC title
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Frequently asked questions
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- What does patent US2022106961A1 cover?
- Provided are a vacuum pump which can be reduced in size without reducing exhaust performance, and a connection port which is used in the vacuum pump. The connection port which connects the vacuum pump and an auxiliary pump includes an oval first opening connectable to the vacuum pump and a circular second opening connectable to the auxiliary pump, and a diameter dimension of the first opening i…
- Who is the assignee on this patent?
- Edwards Japan Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04D19/04. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Apr 07 2022 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).