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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

Celebrate the 4th of July with Autoblog's Car Club USA video series

If you've missed out on seeing and episode of Autoblog's newest series, Car Club USA, there's never been a better time to give it a shot than right now. CCUSA takes a deep look at various car cultures across the country: from Muddin' in the Deep South, to drifting on the East Coast, to Jeeping out west. No matter your automotive passion we have (or will have) an episode for you to jive with. Oh, and there are Corvettes. Who doesn't love a good Corvette? With the long holiday weekend in full swing, we couldn't think of a better time to help you get familiar with these great mini-films, or perhaps to watch one for the first time. If you like what you see, stay tuned – there's a lot more Car Club headed your way this year. Each Car Club USA episode features a different car club or event from across the US, where passionate owner communities gather to share automotive experiences and embark on incredible adventures. From Main Street cruises to off-road trails, catch all the latest car club activity on Autoblog. Chevrolet Coupe Car Club USA Videos

2016 Chevy Volt will start at $33,995*

One of the biggest mysteries regarding the 2016 Chevy Volt has been revealed. Chevy announced today that the next-gen plug-in hybrid will have an MSRP of $33,995, which includes GM's $825 destination fee. That's a few hundred dollars less than the current Volt, which has an MSRP of $34,170. The second-gen Volt is about more than a price cut, though. The car has an increased all-electric range (50 miles vs. 38 in the current model) and better fuel economy. Once the battery power runs out – which it doesn't do, in most situations, since 90 percent of all trips are electric-only – the no-longer-premium-only gas engine offers 41 miles per gallon, up from 37 mpg. We know most buyers are price-conscious, and with the still-available federal tax incentive of up to $7,500, the new Volt can be had for $26,495. That should put a spring back into sluggish Volt sales, which are down 46 percent year-over-year so far in 2015. Through the end of April, GM has sold a cumulative 76,136 first-gen Volts since introducing the car in 2010. Chevrolet Announces 2016 Volt Pricing Next Gen delivers more technology at new price as low as $26,495 DETROIT – The Chevrolet Volt is poised to continue to bring new owners to the electric plug-in family. Pricing will be as low as $26,495 after the full federal tax credit of $7,500. (Federal tax credit can range from $0 up to $7,500.) In California, the vehicle's largest market, residents of the state will be able to purchase the all-new Volt for as low as $24,995 after state and Federal incentives. The 2016 model will start at $33,995 MSRP, including an $825 destination fee (excluding tax, title, license and dealer fees). This is almost $1,200 less than the current generation Volt. "The next generation Chevrolet Volt delivers more technology, the ability to drive further between gas fill ups and now with even more value to our customers. It's what our loyal Volt owners told us they wanted," said Steve Majoros, Director, Chevrolet Marketing. "We are confident we will continue to attract new customers to Volt with the vehicle's product improvements and attractive price." The Volt continues to be a success with the brand with nearly 70 percent of Volt owners trading in a non-GM product or adding to their household fleet in 2014, the highest of any Chevy nameplate. The number one trade-in for the Volt is the Toyota Prius. To date more than 75,000 first generation Volt owners have driven hundreds of millions of EV miles.