Dunno about that. It's hard to compare since the Wankel has all those face seal "rings" as well as the tip "rings". But Wankel's were notoriously fuel inefficient because of all the surface area through which they lost heat. I had an RX2 sedan though...nice car...fast for it's size. The problem was that once it blew a seal, it was going to cost more than I paid for the car to replace them. Brent On 3/28/2018 4:23 PM, Mickey wrote:
It seems to me the Wankel engine would have far les fiction loss than either a radial or the Brickley. STL Mike
Sent from my iPhone
On Mar 28, 2018, at 5:17 PM, Brent Meeker <meekerdb@verizon.net <mailto:meekerdb@verizon.net>> wrote:
On 3/28/2018 2:26 PM, Duncan Charlton wrote:
Brent,
He’s in the process of totally changing the look of his website so the guts of the engine can no longer be seen there but I found this site capture in the web archives from October 1st, 2016. Be sure to allow Flash to load and then click to put the parts into motion. If it looks like there might be a hidden or missing pivot point, that’s because he didn’t want to make it too easy for someone to steal his design. You’ll have to use your imagination to figure out what the inboard end of the connecting rod is fastened to.
I have no problem with that. What I wonder is what the H shaped links behind each piston are doing? They seem to add three more friction surfaces per piston. I'm afraid I'm less than impressed. Compare a radial engine
<ecgbciaaihjghmhb.png>
It has one bearing that turns through 360deg while all the others just oscillate through a small angle. Are radial engines significantly more fuel efficient?...no. First, most friction comes from the piston/cylinder interface, specifically at the compression rings. Second, friction is not 15% of loss. Even at low load it is only 9% and and at high load it's 3%. Here's from an MIT report based on a 1.6L four cylinder:
<fabjgpemblmdmfed.png>
Brent
https://web.archive.org/web/20161001161418/http://brickleyengine.com/
Duncan
On Mar 28, 2018, at 2:46 PM, Brent Meeker <meekerdb@verizon.net <mailto:meekerdb@verizon.net>> wrote:
Is there some cut away drawing or disassembled picture of how this engine is constructed?
Brent
On 3/28/2018 7:31 AM, Duncan Charlton wrote:
Not easily! It would need a set of transfer gears to carry the drive to the gearbox, and it would sit pretty high (and sideways).
Duncan
On Mar 27, 2018, at 9:39 PM, Tim Waller <btmfdchn@gmail.com <mailto:btmfdchn@gmail.com>> wrote:
Greetings... Will it fit in the Unipolar?
Tim(D.Y.M.)
On Tuesday, March 27, 2018 at 4:46:17 AM UTC-7, Duncan wrote:
Some of you may recall me mentioning my friend Mike Brickley’s engine. Here’s a video that shows how well balanced his 4-cylinder prototype is: https://www.youtube.com/watch?v=SjJegdFC54c&feature=youtu.be <https://www.youtube.com/watch?v=SjJegdFC54c&feature=youtu.be>
He created an unusual bottom end in which there are only a few rotating bearings, which cuts friction and heat, improving fuel economy. Most of the components rock back and forth with wrist pin joints. He’s in the testing stage now after completing his hand-built prototype.
His website shows a photo of the complete engine next to him (it’s the thing with the four square yellow air cleaners on it): http://brickleyengine.com <http://brickleyengine.com/>
Duncan
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