Linear motion mechanism, valve device, and steam turbine
US-2017356532-A1 · Dec 14, 2017 · US
Steam valve
US2016102575A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016102575-A1 |
| Application number | US-201314890282-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 27, 2013 |
| Priority date | Jun 13, 2013 |
| Publication date | Apr 14, 2016 |
| Grant date | — |
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Abstract
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In a steam valve, a seat-side convexly curved surface ( 35 b ) of a valve body ( 30 ) is configured such that the average radius of curvature Rv from a starting end portion ( 35 c ) on the upstream side in a flow direction of steam to a termination end portion ( 35 a ) has a relationship of Rv<Rs with respect to the radius of curvature Rs of a valve-seat-side convexly curved surface ( 26 a ); the seat-side convexly curved surface ( 35 b ) is formed with an upstream-side curved surface ( 36 ) and a downstream-side curved surface ( 37 ); the seat-side convexly curved surface ( 35 b ) has an abutting area ( 35 s ) abutting a valve seat portion ( 26 ); and the radius of curvature R 1 of the downstream-side curved surface ( 37 ) has a relationship of Rs<R 1 with respect to the radius of curvature Rs in the flow direction of the steam.
First claim
Opening claim text (preview).
1 . A steam valve comprising: a casing with a steam flow path formed therein; a valve body disposed in the steam flow path and provided so as to be capable of moving relative to the steam flow path; a valve seat portion which is formed in the steam flow path and provided with a valve-seat-side convexly curved surface having a cross-sectional area gradually increasing toward a downstream side in a flow direction of steam in the steam flow path; and a seat portion which is formed in the val…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F01D17/26Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US2016102575A1 cover?
- In a steam valve, a seat-side convexly curved surface ( 35 b ) of a valve body ( 30 ) is configured such that the average radius of curvature Rv from a starting end portion ( 35 c ) on the upstream side in a flow direction of steam to a termination end portion ( 35 a ) has a relationship of Rv<Rs with respect to the radius of curvature Rs of a valve-seat-side convexly curved surface ( 26 …
- Who is the assignee on this patent?
- Mitsubishi Hitachi Power Sys
- What technology area does this patent fall under?
- Primary CPC classification F01D17/26. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Apr 14 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).