Age-hardenable steel
US-2016265092-A1 · Sep 15, 2016 · US
Rail cooling device
US10100380B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10100380-B2 |
| Application number | US-201815970377-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 3, 2018 |
| Priority date | Feb 2, 2012 |
| Publication date | Oct 16, 2018 |
| Grant date | Oct 16, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A rail cooling device configured to forcibly cool a rail by jetting a coolant includes a porous plate nozzle including a plurality of nozzle holes configured to jet the coolant to an underside of the base of the rail to cool the underside of the base of the rail. Ends in a width direction of the porous plate nozzle correspond to ends of the underside of the base of the rail. Nozzle holes of the porous plate nozzle at the ends of the width direction are smaller than nozzle holes of the porous plate nozzle at a central part in the width direction, and a maximum value of a distance between centers of the nozzle holes at both ends in the width direction is 30% or more of a width of the underside of the base.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rail cooling device configured to forcibly cool a rail by jetting a coolant, the rail cooling device comprising: a porous plate nozzle including a plurality of nozzle holes configured to jet the coolant to an underside of a base of the rail to cool the underside of the base of the rail, wherein ends in a width direction of the porous plate nozzle correspond to ends of the underside of the base of the rail, nozzle holes of the porous plate nozzle at the ends of the width direction are smaller than nozzle holes of the porous plate nozzle at a central part in the width direction configured to cause a cooling capacity of the porous plate nozzle at the ends in the width direction, to be lower than a cooling capacity of the porous plate nozzle for the central part in the width direction, and a maximum value of a distance between centers of the nozzle holes at both ends in the width direction is 30% or more of a width of the underside of the base. 2. The rail cooling device according to claim 1 , wherein the nozzle holes have a circular shape, and a diameter of the nozzle holes at the ends is 20% to 90% of a diameter of the nozzle holes at the central part. 3. The rail cooling device according to claim 1 , wherein an arrangement of the nozzle holes is a staggered arrangement.
Assignees
Inventors
Classifications
Edge parts · CPC title
Treating localised areas of an article · CPC title
Hardening (C21D1/02 takes precedence); Quenching with or without subsequent tempering (quenching devices C21D1/62) · CPC title
Austenite · CPC title
Pearlite · CPC title
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- What does patent US10100380B2 cover?
- A rail cooling device configured to forcibly cool a rail by jetting a coolant includes a porous plate nozzle including a plurality of nozzle holes configured to jet the coolant to an underside of the base of the rail to cool the underside of the base of the rail. Ends in a width direction of the porous plate nozzle correspond to ends of the underside of the base of the rail. Nozzle holes of the…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C21D1/667. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 16 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).