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GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

All of the Bond cars of 'No Time To Die' (caution for spoilers)

Note: The following overview of the cars in No Time To Die contains spoilers. Read at your own risk, or come back after seeing the film to make sure you caught everything.   No Time To Die picks up right around where Spectre leaves us. James Bond (Daniel Craig) and Madeleine Swann (Lea Seydoux) are driving along in Bond’s restored and iconic DB5 in Matera, Italy. Things donÂ’t stay all that cheery for long in picturesque Matera, though. As is tradition in Bond films, the first car chase hits us with an explosion of action in what's a super-long opening scene. Fourth-gen Maserati Quattroporte: The baddies in the beginning are driving a Maserati and chasing after Bond in the DB5. Specifically, theyÂ’re in a fourth-gen Quattroporte, which feels right for a chase scene in Italy. Its squared-off looks are mean enough, and its Italian growl is a good background soundtrack to the DB5Â’s inline-six. In addition to the Quattroporte, the chase scene in Matera is home to a couple of the best stunts of the entire movie, including the arch jump done with a Triumph motorcycle seen in trailers — Matera is extremely hilly. Eventually, Bond and Swann find themselves in the DB5 again together, which is where the famous gatling gun scene from the trailer commences, but not before the bulletproof windows and body of the DB5 are thoroughly tested. RIP to the first-gen Range Rover Classics and Jaguar XFs that joined the Maserati in pursuit of Bond (here's a list of other Bond cars over the years). As the DB5 escape scene concludes, we catch a glimpse of what appears to be a Ferrari from the 1970s. However, the view was far enough away that weÂ’ll need a second look to be sure of the exact model. Land Rover Series III: Next time we see Bond, heÂ’s fishing in Jamaica and driving around a blue Land Rover Series III. ItÂ’s yet another of the many Land Rover products featured throughout the film, and unlike most of BondÂ’s Aston Martins, this one doesnÂ’t seem to have any unique features. The other intriguing vehicle out of Jamaica? An old Chevrolet Bel-Air expertly and effectively piloted by Bond newcomer, Ana de Armas. Next up, we get a few shots of the new and still-not-for-sale Aston Martin Valhalla mid-engine supercar (also seen in trailers). BondÂ’s old boss M is in the scene which appears to have been shot in some secret wind tunnel of sorts. Much to our dismay, nobody ends up driving the Valhalla in the film. Could it be a teaser for what the next 007Â’s car is?

New Takata problem results in recall of 414 GM vehicles

An airbag-inflator rupture discovered by Takata during testing has resulted in a new recall affecting 414 vehicles from General Motors, including 395 of them in the US. This latest campaign covers 2015 model-year examples of the Buick LaCrosse, Cadillac XTS, Chevrolet Camaro, Equinox, Malibu, and GMC Terrain. There are no reported breaks in any of these vehicles on the road, and the company estimates only one percent of them actually have the faulty parts. According to documents submitted to the National Highway Traffic Safety Administration (as a PDF), one side-airbag inflator failed a cold test at -40 Fahrenheit "releasing high pressure gas and propelling the separated components apart." The supplier told GM about the failure the next day. In these vehicles, the safety device might not only burst but the bag could inflate incorrectly, as well. GM and Takata say that a cause is not yet known, but they are "conducting an investigation." GM will begin notifying affected owners via overnight mail on Oct. 19. Dealers will replace the side airbag modules on all of the affected vehicles with new components outside of the suspect lot. All of the removed parts will also be collected for further study. Takata's faulty front airbag inflators have resulted in a serious scandal for the supplier. Initial figures indicated 34 million US vehicles are need of repair, though more recent figures have knocked that down to 23.4 million bad parts in 19.2 million automobiles. GM was already among the dozen automakers with models to fix, and some of its pickups were affected, along with the Saab 9-2X and Pontiac Vibe. GM Statement: General Motors is recalling 395 cars and crossovers in the U.S. because one of the front seat side air bags inflators may be defective. In the event of a deployment, the air bag's inflator may rupture and the air bag may not properly inflate. The rupture could cause metal fragments to strike the vehicle occupants, potentially resulting in serious injury or death. GM is unaware of any incidents involving vehicles with these components, which were part of a lot in which one inflator failed acceptance testing at the supplier. Dealers will replace the side air bag module or modules in affected vehicles. Including Canada, Mexico and exports, the total population of the recall is 414, GM estimates 1 percent of the recalled vehicles may have the defect.