By on November 1, 2016

JaguarXE

You don’t traditionally associate fuel economy with high-end luxury brands, but Jaguar currently sells three of the most fuel-efficient vehicles on the market, with no electric motors in sight.

The one-time fuel economy laggard is now greener than ever, and it has an engine family with a stupid name to thank for it.

(Read More…)

By on September 3, 2015

moment-cancelling-engine

With a resume as accomplished as Dan Gurney has, he would be well within his rights to retire to a life of leisure. The man is 84 years old, after all. However, Gurney stays busy at his All American Racers shop in Santa Ana, California and he recently announced that he’s been granted a United States patent on what he calls the “moment cancelling” engine.

Gurney claims that by using two transversely oriented, counter-rotating crankshafts, the vibrations inherent in reciprocating piston engines will be reduced and reliability and efficiency will be improved, along with what he says will be turbine smoothness. (Read More…)

By on August 13, 2013
Bourke-engine-animation-text

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.

(Read More…)

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