1972 Volkswagen Beetle Convertible European Model on 2040-cars

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The tumultuous history of the diesel engine

Volkswagen, diesel's most enthusiastic patron, deceived everyone about the amount of emissions its cars were putting out. We have covered this latest massive automotive scandal in great detail, and there are surely more fascinating revelations to come. It turns out that this is just the latest episode in the epic story of the controversy and intrigue surrounding the diesel engine, and its inventor. This is the story of the tumultuous birth and interesting evolution of the compression-ignition engine at the center of the VW scandal. Napoleon III Got Rudolf Diesel Deported Rudolf Diesel was born in Paris in 1858. His Bavarian parents had settled in France where his father, Theodor, was a leather goods manufacturer. When the French Parliament declared war on Prussia, kicking off the Franco-Prussian war, the Diesels fled to London. When he was 12, Rudolf went to live with his aunt and uncle in the Bavarian university town of Augsburg. It was his parents' hometown, and importantly, it's where Rudolf began studying at the Royal County Trade School. His time in Augsburg, graduating at the top of his class from trade school that laid the groundwork for all that was to come. Diesel Nearly Blew Himself Up An early career in refrigeration saw Diesel running R&D in Berlin for Linde, a company started by refrigeration pioneer Carl Von Linde, one of Diesel's professors. His ambition to branch out beyond refrigeration, and his deep understanding of thermodynamics, led to efficiency experiments with steam engines. Diesel was trying to create an engine that didn't waste heat from the combustion process, therefore getting the most work out of the fuel. Instead, he was nearly killed when an experimental ammonia vapor steam engine exploded. Recovery took many months, and during some of that time, he was no doubt planning his next experimental engine, based on the theoretical Carnot cycle. His Engine Was An Attempt To Stick It To The Man Steam engines were expensive to run and wasteful. Diesel thought the efficiency of his design would be a way for the small business to compete with the dominant industrial giants. It was, and it did, but big business is equally passionate about chasing efficiency. Diesel engines quickly proliferated in industries both grand and cottage. Rudolf Didn't Really Invent The Diesel As We Know It Instead, he improved an existing one to a significant degree. The Diesel engine could be considered an evolution of the "hot-bulb" engine.

2023 CES Editors' Picks

Over the past few years, it has become more and more clear that the Consumer Electronics Show is a car show. And this year that reality is more clear than ever. Not only did established automakers show off seriously important vehicles, but a traditional electronics company brought a car that gives an idea of its intents (with the help of establishment car company). With so many car reveals, we had to rank our favorites. Our picks for this show are entirely electric. Or at least, they are on paper, since many are concepts. Considering the name of the show, it would be a little strange if they weren't. In fact, not only are many of our favorites concepts, they all are save for one. See how they shook out below. VW ID7 camo View 28 Photos 5. Volkswagen ID.7 "The ID.7 definitely got lost in the crowd at CES. That it was camouflaged definitely didn't help, even if that camo was electroluminescent (BMW trumped it big time with its color-changing Dee). Nevertheless, this is a close-to-production hatchback-ed sedan, not unlike today's Arteon, with an extra-long wheelbase courtesy its EV architecture. It should be a solid answer to the Tesla Model 3 and Hyundai Ioniq 6, and even if people obviously prefer SUVs now, VW says there is still a market for sedans. I know I'd probably prefer one." –Senior Editor, West Coast and Reviews, James Riswick Peugeot Inception concept View 12 Photos 4. Peugeot Inception "It's not often that show debuts surprise us. While Peugeot teased the Inception ahead of CES, its unveiling seemed almost incidental. But just look at this thing; it's like an electric French Mustang with someplace important to be. I don't buy into the stupid 'It's not a wheel!' thing that Peugeot CEO Linda Jackson described as providing a video-game-like drive experience, but that bit of silliness aside, this is a really promising design study. Give us more of these and fewer tall boxes, please." –Associate Editor Byron Hurd Afeela prototype from Sony Honda Mobility View 11 Photos 3. Afeela by Sony Honda “Ever since Sony showed off an impressively put-together concept car at CES a few years ago, IÂ’ve been anticipating the companyÂ’s next move. Apparently, that next move is “Afeela.” No, I donÂ’t love the name. The specs from SonyÂ’s original concept car give me hope that this prototype sportback (itÂ’s a hatchback!) will be fun to drive, though.

2013 Volkswagen Jetta Hybrid

More Fun Than A Prius, Less Sensible Than A TDI
Let's have some fun, and do some math. We're talking pretty rudimentary stuff, multiplication and division, to figure out if the upcoming Volkswagen Jetta Hybrid can make a baseline case for itself against two very strong competitors in this segment. The competitors in question, at least for now, are two more Jettas: the diesel-drinking TDI and the fit-for-the-masses SE with VW's long-serving 2.5-liter engine.
To keep the equations clean and simple (hey, we're writers), we'll calculate based on the most flattering EPA miles per gallon stat from highway driving for all cars, assume a healthy 20,000 miles driven per year, and factor in today's average cost for the respective fuels these three require: diesel (TDI), regular (SE) and premium (Hybrid). We'll also start with the base prices for all models.