HOW IS ANY OF SHIT THIS POSSIBLE!!!!!!!!!!!!!!
i have a feeling the vibration created would negate alot of potential here. mostly because you need to waste a whole motion to bring each piston's crank arm back up the path on the output until you get back to the rounded part which is your power stroke. better thinking is required.
Both strokes are power strokes, the only reason the shape is different when crank goes up or down is because of push/pull balancing of forces..., also the pistons counteract each others momentum keeping the device relatively vibration free, this si why 3 are used and not 2 or 4
Doesn't matter. It's doing the exact same motion either way.
You see as the disk rotates it is dragging itself across the inner wall causing vibration, loud noise, and wear and tear. All those combined just drives efficiency down.
This mechanism given is great to show to kids but highly unnecessary. At high cycles (faster speeds) this thing will tear itself apart.
Sorry. This mechanism has been driven into my head to just hate. Still an undergraduate engineering student though.
I'll explain the best I can from what I can see.
The outer partial gear, the sun gear, is the gear that controls the ejection of the water from the sprinkler. The inner partial gear returns the bottom gear to its original position so it can re-eject the water as the sun gear passes through again to repeat the cycle.
This is a very clever design none the less.
here's the link
It doesn't have to convert reciprocating motion to rotary motion, making it more efficient and smoother. Intake, compression, combustion and exhaust phases overlap so you get more power for the same engine displacement than a four-stroke piston engine. On the other hand, there's a lot of friction and wear on the seals leading to high maintenance, and loss of efficiency when the seals are worn.
Gonna contribute in this thread with one very nice video of how a differential gear works.
The video may be old but goddamn did it help me understand this design and apply it in building an RC car for my Machine Elements course.
Sewing machines are fucking awesome. My mum got a new one when I was about five, so I got the old one that had been playing up. I took it apart, cleaned out the gunk that was fouling the mechanisms, and learned to use it. In the end, the bakelite foot controller cracked exposing live parts so I had to get rid of it. In my 30s now, TFW my wife can't actually use a sewing machine but I can.
It's called a constant velocity joint, or CV joint. The shafts are at different angles but the speed ratio is constant. Used in front-wheel drive cars to get power to wheels that need to turn for steering. Wikipedia has more detail.
Yeah, rotaries sound different. Most Mazdas have conventional engines anyway. It's just things like the RX8, RX8, RX3, R100, Luce, Cosmo and Roadpacer with rotaries. They gave good acceleration and decent power, but they were never efficient and always had high maintenance.
Converts simple rotation to a walking motion. Here's an example:
Sad part about these guys is that it requires a lot more torque than normal planetary gear system.
Also, if I remember when I played around with one it wasn't that backdriveable.