Turbomachine and method of assembly
US-2024295224-A1 · Sep 5, 2024 · US
Propeller fan, molding die, and fluid feeder
US8926286B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8926286-B2 |
| Application number | US-201013395194-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 7, 2010 |
| Priority date | Sep 11, 2009 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A propeller fan with two blades includes a blade and a blade, and a connection portion connecting the blades together. Each blade has a peripheral edge portion extending in an arc having a diameter D with a center axis as a center thereof, a front edge portion arranged on a forward side in a rotational direction, a rear edge portion arranged on an opposite side in the rotational direction, and a leading blade edge portion connecting the front edge portion and the peripheral edge portion. A plane which includes each intersection between the rear edge portion and the peripheral edge portion and is perpendicular to the center axis is defined as γ. When the propeller fan is viewed in a direction parallel to a plane including the leading blade edge portions and the center axis, a distance H between plane γ and a connected portion between the front edge portion of the blade and the rear edge portion of the blade, on a line of the center axis, satisfies 0.028≦H/D≦0.056. With such a structure, a propeller fan, a molding die, and a fluid feeder which make a significant contribution in terms of energy-saving properties and resource-saving design can be provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A propeller fan with two blades, comprising: a first blade and a second blade which are provided to be circumferentially separated from each other for performing air blowing according to rotation around an imaginary center axis, and which constitute the two blades; and a connection portion provided, when the propeller fan is viewed in an axial direction of said center axis and a smallest imaginary circle is drawn to circumferentially separate said fi…
Assignees
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Classifications
- F04D29/384Primary
Mechanical Engineering · mapped topic
- F04D29/32Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8926286B2 cover?
- A propeller fan with two blades includes a blade and a blade, and a connection portion connecting the blades together. Each blade has a peripheral edge portion extending in an arc having a diameter D with a center axis as a center thereof, a front edge portion arranged on a forward side in a rotational direction, a rear edge portion arranged on an opposite side in the rotational direction, and …
- Who is the assignee on this patent?
- Takeda Yasukata, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification F04D29/384. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 06 2015 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).