Tag Archives: Valve

Hyundai announces "world's first" Continuously Variable Valve Duration engines

Posted on by

Hyundai/Kia have announced what they term the "world's first continuously variable valve duration" system

Set to debut in a new 1.6-liter 4-cylinder Smartstream turbo engine, Hyundai’s new valve tech is able to continuously change the duration of valve openings to suit driving conditions, which Hyundai says results in a 4 percent performance boost, 5 percent better fuel economy and 12 percent lower emissions.

..
Continue Reading Hyundai announces “world’s first” Continuously Variable Valve Duration engines

Category: Automotive

Tags:

Continue reading Hyundai announces "world's first" Continuously Variable Valve Duration engines→

Everything You Probably Didn’t Know About FOV In HMDs

Posted on by

VR headsets have been seeing new life for a few years now, and when it comes to head-mounted displays, the field of view (FOV) is one of the specs everyone’s keen to discover. Valve Software have published a highly technical yet accessibly-presented document that explains why Field of View (FOV) …read more

Continue reading Everything You Probably Didn’t Know About FOV In HMDs→

EF50: the Tube that Changed Everything

Posted on by

From today’s perspective, vacuum tubes are pretty low tech. But for a while they were the pinnacle of high tech, and heavy research followed the promise shown by early vacuum tubes in transmission and computing. Indeed, as time progressed, tubes became very sophisticated and difficult to manufacture. After all, they were as ubiquitous as ICs are today, so it is hardly surprising that they got a lot of R&D.

Prior to 1938, for example, tubes were built as if they were light bulbs. As the demands on them grew more sophisticated, the traditional light bulb design wasn’t sufficient. For one, …read more

Continue reading EF50: the Tube that Changed Everything→

EF50: the Tube that Changed Everything

Posted on by

From today’s perspective, vacuum tubes are pretty low tech. But for a while they were the pinnacle of high tech, and heavy research followed the promise shown by early vacuum tubes in transmission and computing. Indeed, as time progressed, tubes became very sophisticated and difficult to manufacture. After all, they were as ubiquitous as ICs are today, so it is hardly surprising that they got a lot of R&D.

Prior to 1938, for example, tubes were built as if they were light bulbs. As the demands on them grew more sophisticated, the traditional light bulb design wasn’t sufficient. For one, …read more

Continue reading EF50: the Tube that Changed Everything→

How To Make A Pilotron, The Forgotten Tube

Posted on by

The vacuum tube is largely ignored in modern electronic design, save for a few audio applications such as guitar and headphone amps. The transistor is smaller, cheaper, and inordinately easier to manufacture. By comparison, showing us just how much goes into the manufacture of a tube, [glasslinger] decided to make a wire-element pilotron – from scratch!

To say this is an involved build is an understatement. Simply creating the glass tube itself takes significant time and skill. [glasslinger] shows off the skills of a master, however – steadily working through the initial construction, before showing off advanced techniques necessary to …read more

Continue reading How To Make A Pilotron, The Forgotten Tube→