Apple eyeing ways to improve air flow in upcoming Macs
TweetFollow Us on Twitter

Apple eyeing ways to improve air flow in upcoming Macs

A new Apple patent (number 20110189004) shows that the company is working on ways to improve air flow in upcoming Macs.

The patent involves a fan inlet and method. method and apparatus to improve air flow in an air circulating fan assembly by forming an inlet opening in a fan assembly is disclosed. A static air pressure profile is calculated along a top portion of the fan assembly configured to operate in an enclosure.

The shape of a section of the inlet opening in the top portion of the fan assembly is changed based on a pressure contour of the calculated static air pressure profile. The method is repeated iteratively one or more times using an inlet opening changed by a previously calculated static air pressure profile when calculating a subsequent static air pressure profile.

The inlet opening is positioned in the top surface of the fan assembly so that the centroid of the inlet opening is laterally offset with respect to the rotational axis of an impeller in the fan assembly. The inventors are Jesse T. Dybenko, Frank Liang, Amaury J. Heresztyn, Brett W. Degner, Thomas W. Wilson Jr., Peteris K.Augenbergs and Connor R. Duke.

Here's Apple's background and summary of the invention: "The performance of computational components and storage devices in computing systems, such as personal computers and rack mounted servers, require effective cooling mechanisms to ensure that the components and devices used inside operate in a preferred temperature range. The operational stability of central processing units (CPUs), video processing units, memory and storage devices, for example, can be adversely affected by heat accumulation within enclosed spaces in which they are housed, such as encountered in relatively thin notebook computers.

"With each newly introduced computing system, the performance of components used internally are being increased, while simultaneously, the dimensions of the external enclosure that houses the computing system are being decreased, thereby challenging the computer system designers to devise more efficient cooling methods. The narrow height dimensions of portable computer housings can require more efficient cooling methods than can be provided by thermal conduction alone or even when combined with conventional air circulation fan designs.

"Air circulation fans within computing systems can include axial fans that move air parallel to the rotational axis of the fan's impeller and centrifugal fans that blow air through an outlet perpendicular to an air inlet opening. Several geometric properties of a centrifugal fan's shape can affect its air flow performance, including the size, shape and orientation of the air inlet opening through which air is drawn when rotating the fan's impeller.

"In a typical prior art centrifugal fan, a circular inlet opening in the fan's housing is positioned concentric with the rotational axis of an impeller situated inside the fan housing. Increasing the diameter of the circular inlet opening beyond a certain size can decrease air flow (rather than increase it as intended) due to air being expelled upward from the rotating impeller blades and thereby forcing some air out of the inlet opening rather than drawing air in. Prior art methods have designed variously shaped inlet openings for centrifugal fans to change the fan's air flow. Such ad hoc methods can change the air flow but not necessarily maximize the flow rate through the fan in its intended application.

"None of the prior art methods known to the applicants have systematically designed the inlet opening according to calculated pressure contour profiles on the fan housing's surface operating in situ. Thus there exists a need for an improved method to form an inlet opening in a cooling fan to maximize flow rate.

"This paper describes various embodiments that relate to methods and apparatus to improve air flow and increase flow rate in an air circulating fan assembly. In described embodiments, a method for forming an inlet opening in a fan assembly's housing is described. The method comprises calculating a static air pressure profile along a top portion of the fan housing configured to operate in an enclosure and changing the shape of a section of the inlet opening in the top portion of the fan housing based on a pressure contour of the calculated air pressure profile.

"The fan assembly includes an impeller mounted on a bottom portion of the fan housing, a housing sidewall perpendicular to the bottom portion and enclosing the fan assembly to form an outlet opening along one side, and the top portion of the fan housing having an inlet opening perpendicular to the outlet opening and positioned over the impeller. In some embodiments, the method can be repeated iteratively one or more times using an inlet opening changed by a previously calculated static air pressure profile when calculating a subsequent static air pressure profile. In some embodiments, the fan assembly is a centrifugal fan.

"In an embodiment, the centroid of the changed inlet opening is displaced laterally from a rotational axis of the impeller in the air circulating fan assembly. The changed inlet opening can be a non-circular, smoothly convex geometric curve with no discontinuities or corner bends. In some embodiments the interior surface of the fan assembly's housing sidewall can follow a smoothly convex geometric curve, also with no discontinuities or corner bends.

"In another embodiment, an air circulating fan assembly is described. The air circulating fan assembly comprises an impeller mounted on a bottom portion of a housing of the fan assembly, a housing sidewall perpendicular to the bottom portion and enclosing the fan assembly to form an outlet opening along one side, and a top portion of the fan housing having an inlet opening perpendicular to the outlet opening and positioned over the impeller.

"The shape of a section of the inlet opening in the top portion of the fan housing is based on a pressure contour of a calculated static air pressure profile along the top portion of the fan housing when configured to operate in an enclosure. In an embodiment, the shape of the inlet opening in the fan housing is determined by using a previously determined inlet opening when calculating a subsequent static air pressure profile along the top portion of the fan housing. Preferably the fan assembly is a centrifugal fan.

"In a further embodiment, the centroid of an inlet opening in the top portion of a fan housing is displaced laterally from a rotational axis of the impeller. The shape of the inlet opening can be a non-circular, smoothly convex, arc-shaped geometric curve with no discontinuities or corner bends. In some embodiments the interior surface of the fan assembly's housing sidewall can follow a smoothly convex geometric curve, also with no discontinuities or corner bends."

Another Apple patent (number 20110188178) also appeared today and is for a high tolerance connection between elements. This is directed to connecting two or more elements using an intermediate element constructed from a material that changes between states.

An electronic device can include one or more components constructed by connecting several elements. To provide a connection having a reduced or small size or cross-section and construct a component having high tolerances, a material can be provided in a first state in which it flows between the elements before changing to a second state in which it adheres to the elements and provides a structurally sound connection.

For example, a plastic can be molded between the elements. As another example, a composite material can be brazed between the elements. In some cases, internal surfaces of the elements can include one or more features for enhancing a bond between the elements and the material providing the interface between the elements. The inventors are Scott Meyers, Mattia Pascolini, Richard Dinh, Trent Weber, Robert Schlub, Josh Nickel, Robert Hill, Nanbo Jin and Tang Tan.

-- Dennis Sellers

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

iDefrag 5.1.7 - Disk defragmentation and...
iDefrag helps defragment and optimize your disk for improved performance. Features include: Supports HFS and HFS+ (Mac OS Extended). Supports case sensitive and journaled filesystems. Supports... Read more
TrailRunner 3.8.832 - Route planning for...
TrailRunner is the perfect companion for runners, bikers, hikers, and all people wandering under the sky. Plan routes on a geographical map. Import GPS or workout recordings and journalize your... Read more
VOX 2.8.14 - Music player that supports...
VOX just sounds better! The beauty is in its simplicity, yet behind the minimal exterior lies a powerful music player with a ton of features and support for all audio formats you should ever need.... Read more
WhiteCap 6.6 - Visual plug-in for iTunes...
WhiteCap is a sleek and sophisticated music visualizer and screensaver that features futuristic, wireframe mesh visuals with dynamic backgrounds and colors. WhiteCap contains thousands of visual... Read more
VueScan 9.5.65 - Scanner software with a...
VueScan is a scanning program that works with most high-quality flatbed and film scanners to produce scans that have excellent color fidelity and color balance. VueScan is easy to use, and has... Read more
Carbon Copy Cloner 4.1.13 - Easy-to-use...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
TrailRunner 3.8.831 - Route planning for...
TrailRunner is the perfect companion for runners, bikers, hikers, and all people wandering under the sky. Plan routes on a geographical map. Import GPS or workout recordings and journalize your... Read more
Quicken 4.4.2 - Complete personal financ...
Quicken makes managing your money easier than ever. Whether paying bills, upgrading from Windows, enjoying more reliable downloads, or getting expert product help, Quicken's new and improved features... Read more
Adobe Illustrator CC 2017 21.0.2 - Profe...
Illustrator CC 2017 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous Illustrator customer). Adobe Illustrator CC 2017 is the industry... Read more
Paparazzi! 1.0b2 - Make user-defined siz...
Paparazzi! is a small utility for OS X that makes screenshots of webpages. This very simple tool takes screenshots of websites which do not fit on one screen. You specify the desired width, minimal... Read more

5 dastardly difficult roguelikes like th...
Edmund McMillen's popular roguelike creation The Binding of Isaac: Rebirth has finally crawled onto mobile devices. It's a grotesque dual-stick shooter that tosses you into an endless, procedurally generated basement as you, the pitiable Isaac,... | Read more »
Last week on PocketGamer
Welcome to a weekly feature looking back on the past seven days of coverage on our sister website, PocketGamer. It’s taken a while for 2017 to really get going, at least when it comes to the world of portable gaming. Thank goodness, then, for... | Read more »
ROME: Total War - Barbarian Invasion set...
To the delight of mobile strategy fans, Feral Interactive released ROME: Total War just a few months ago. Now the game's expansion, Barbarian Invasion is marching onto iPads as a standalone release. [Read more] | Read more »
Yuri (Games)
Yuri 1.0 Device: iOS iPhone Category: Games Price: $3.99, Version: 1.0 (iTunes) Description: It's night. Yuri opens his eyes. He wakes up in a strange forest.The small, courageous explorer rides on his bed on casters in this... | Read more »
Space schmup Xenoraid launches on the Ap...
10Tons Xenoraid is out today on the App Store, bringing some high-speed space action to your mobile gadgets just in time for the weekend. The company's last premium title, another sci-fi game titled Neon Chrome, did quite well for itself, so... | Read more »
Star Wars: Force Arena Beginner's G...
Star Wars: Force Arena joined the populous ranks of Star Wars games on mobile today. It's a two-lane MOBA starring many familiar faces from George Lucas's famed sci-fi franchise. As with most games of this nature, Force Arena can be a little obtuse... | Read more »
Mysterium: The Board Game (Games)
Mysterium: The Board Game 1.0 Device: iOS Universal Category: Games Price: $6.99, Version: 1.0 (iTunes) Description: The official adaptation of the famous board game Mysterium! | Read more »
Sonny (Games)
Sonny 1.0.4 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0.4 (iTunes) Description: Reimagined for iOS, cult-hit RPG Sonny brings challenging turn-based combat that requires strategy and mastery of each new skill to... | Read more »
Towaga (Games)
Towaga 1.0 Device: iOS iPhone Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: "It has been foretold that a masked being would stand atop the legendary Towaga Temple, dwelling among shadows to fulfil The Black Moon... | Read more »
Bubble Witch 3 Saga Guide: How to get th...
King's bringing its fairytale bubble-popping puzzler back for its 3rd outing in Bubble Witch 3 Saga. If you're familiar with the series, not much has changed here on the surface level, though you'll likely be pleased with the improvements. If you'... | Read more »

Price Scanner via MacPrices.net

Opera Announces Neon Concept Browser For Mac
Opera is inviting users to get a glimpse of what Opera for computers could become with its Opera Neon browser concept. Each Opera Neon feature is described as “an alternate reality” for the Opera... Read more
Tellini Releases TabView 3.0 Missing Tool fo...
Tellini has announced the release of TabView 3.0. TabView has been the first macOS viewer for PowerTab tablatures. PowerTab is a well-known and widely adopted tablature editor for Windows systems and... Read more
13-inch 1.6GHz/128GB MacBook Air on sale for...
Overstock.com has the 1.6GHz/128GB 13″ MacBook Air on sale for $130 off MSRP including free shipping: - 13″ 1.6GHz/128GB MacBook Air (MMGF2LL/A): $869.99 $130 off MSRP Their price is the lowest... Read more
12-inch 32GB Space Gray iPad Pro on sale for...
B&H Photo has 12″ Space Gray 32GB WiFi Apple iPad Pros on sale for $55 off MSRP including free shipping. B&H charges sales tax in NY only: - 12″ Space Gray 32GB WiFi iPad Pro: $744.44 $55 off... Read more
9-inch 32GB Space Gray iPad Pro on sale for $...
B&H Photo has the 9.7″ 32GB Space Gray Apple iPad Pro on sale for $549 for a limited time. Shipping is free, and B&H charges NY sales tax only. Read more
Apple iMacs on sale for up to $120 off MSRP,...
B&H Photo has 21″ and 27″ Apple iMacs on sale for up to $120 off MSRP, each including free shipping plus NY sales tax only: - 27″ 3.3GHz iMac 5K: $2199 $100 off MSRP - 27″ 3.2GHz/1TB Fusion iMac... Read more
Apple refurbished Apple TVs available for up...
Apple has Certified Refurbished 32GB and 64GB Apple TVs available for up to $30 off the cost of new models. Apple’s standard one-year warranty is included with each model, and shipping is free: -... Read more
1.4GHz Mac mini, refurbished, available for $...
The Apple Store has Apple Certified Refurbished 1.4GHz Mac minis available for $419. Apple’s one-year warranty is included, and shipping is free. Their price is $80 off MSRP, and it’s the lowest... Read more
16GB iPad Air 2, Apple refurbished, available...
Apple has Certified Refurbished 16GB iPad Air 2s available for $319 including free shipping. A standard Apple one-year is included. Their price is $60 off original MSRP for this model. Read more
Mac Pros on sale for $200 off MSRP, refurbish...
B&H Photo has Mac Pros on sale for $200 off MSRP. Shipping is free, and B&H charges sales tax in NY only: - 3.7GHz 4-core Mac Pro: $2799, $200 off MSRP - 3.5GHz 6-core Mac Pro: $3799, $200... Read more

Jobs Board

*Apple* Retail - Multiple Positions- Crows N...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* & PC Desktop Support Technician...
Apple & PC Desktop Support Technician job in Los Angeles, CA Introduction: We have immediate job openings for several Desktop Support Technicians with one of our Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Premier Retailer - PT Service Specia...
DescriptionSimply Mac is the largest premier retailer for Apple products and solutions. At Simply Mac we are all Apple , all the time. Same products. Same prices. Read more
*Apple* Premier Retailer - Service Manager -...
DescriptionSimply Mac is the largest premier retailer for Apple products and solutions. At Simply Mac we are all Apple , all the time. Same products. Same prices. Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.