Waissi Engine Update: The Differences Between Waissi and Bourke Engines

Bourke Engine (click for animation)

In a comment to my post last month about Professor Gary Waissi’s new piston engine that has no connecting rods between the pistons and the crankshaft, one of our readers asked about similarities to the Bourke Engine, invented by Russell Bourke. Based on the diagrams of the Bourke motor, that seemed like a good question, so I asked Prof. Waissi about it. I received his reply today. Waissi said that while there were similarities between his engine and Bourke’s, there were also substantial differences, resulting in the Bourke engine having more operating friction. Dr. Waissi also said that he hoped to have a two-cylinder prototype of his own design assembled and running by the end of this year. Waissi’s response after the jump.

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The New Waissi Engine, Pistons But No Connecting Rods

Though much of the attention paid to new automotive drivetrains recently has focused on hybrids and battery electric vehicles, the simple fact is that internal combustion engines are going to be around for a while. They’re still teaching the old dog a few tricks and even coming up with a new breed or two as can be seen every year at the Society of Automotive Engineers World Congress, in Detroit’s Cobo Hall. There is always at least a handful of inventors and promoters at the SAE confab showing off their new engine designs. Maybe it’s the romantic idea of a lone inventor trying to prove his concept in the face of a skeptical world, but after looking over the convention program, the booth that I most wanted to visit was that for the Waissi Engine, the invention of Gary Waissi, an engineering professor at Arizona State University.

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  • Mebgardner I test drove a 2023 2.5 Rav4 last year. I passed on it because it was a very noisy interior, and handled poorly on uneven pavement (filled potholes), which Tucson has many. Very little acoustic padding mean you talk loudly above 55 mph. The forums were also talking about how the roof leaks from not properly sealed roof rack holes, and door windows leaking into the lower door interior. I did not stick around to find out if all that was true. No talk about engine troubles though, this is new info to me.
  • Dave Holzman '08 Civic (stick) that I bought used 1/31/12 with 35k on the clock. Now at 159k.It runs as nicely as it did when I bought it. I love the feel of the car. The most expensive replacement was the AC compressor, I think, but something to do with the AC that went at 80k and cost $1300 to replace. It's had more stuff replaced than I expected, but not enough to make me want to ditch a car that I truly enjoy driving.
  • ToolGuy Let's review: I am a poor unsuccessful loser. Any car company which introduced an EV which I could afford would earn my contempt. Of course I would buy it, but I wouldn't respect them. 😉
  • ToolGuy Correct answer is the one that isn't a Honda.
  • 1995 SC Man it isn't even the weekend yet