Turbocharger impeller, method of manufacturing the same, turbocharger, and turbocharger unit
US-2015354359-A1 · Dec 10, 2015 · US
Nozzle blade
US9528386B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9528386-B2 |
| Application number | US-201214116462-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 24, 2012 |
| Priority date | May 26, 2011 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
This relates to a nozzle blade in which the leading edge shape has a curved-line shape that is formed by the distance from the rotation axis of the nozzle blade to the leading edge changing depending on the nozzle blade height position, and the trailing edge shape has a straight-line shape that is formed by the distance from the rotation axis of the nozzle blade to the trailing edge being constant irrespective of the nozzle blade height position.
First claim
Opening claim text (preview).
The invention claimed is: 1. A variable-capacity turbocharger comprising: a turbine impeller which includes turbine blades; a plurality of nozzle blades, each rotatable around a respective shaft portion of each of the nozzle blades, disposed at the periphery of the turbine impeller; a shroud surrounding a tip side of the turbine blades; an opposing wall that is separated from the shroud in a height direction of the nozzle blades; and a nozzle sandwiched by the shroud and the opposing wall, the nozzle being provided with the nozzle blades, wherein a leading edge of the nozzle blades in the height direction of the nozzle blades has a curved-line shape over the entire length of the leading edge relative to a distance from the shaft portion of the nozzle blades to the leading edge which changes depending on a height position of the nozzle blades, and a trailing edge of the nozzle blades in the height direction of the nozzle blades has a straight-line shape such that a distance from the shaft portion of the nozzle blades to the trailing edge being constant irrespective of the height position of the nozzle blades. 2. The turbocharger according to claim 1 , wherein a region at which the distance from the shaft portion to the leading edge is shortest is sandwiched by both ends in the height direction of the nozzle blades. 3. The turbocharger according to claim 2 , wherein the region is closer to the opposing wall than to a center of the nozzle blades in the height direction of the nozzle blades.
Assignees
Inventors
Classifications
related to the leading edge of a stator vane · CPC title
for radial flow machines or engines · CPC title
in turbochargers · CPC title
for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line (F01D17/167 takes precedence) · CPC title
- F02B37/24Primary
by using pumps or turbines with adjustable guide vanes · CPC title
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Frequently asked questions
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- What does patent US9528386B2 cover?
- This relates to a nozzle blade in which the leading edge shape has a curved-line shape that is formed by the distance from the rotation axis of the nozzle blade to the leading edge changing depending on the nozzle blade height position, and the trailing edge shape has a straight-line shape that is formed by the distance from the rotation axis of the nozzle blade to the trailing edge being const…
- Who is the assignee on this patent?
- Morita Isao, Ihi Corp
- What technology area does this patent fall under?
- Primary CPC classification F02B37/24. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 27 2016 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).