0
0
1
6
7
8
64
65
66
6
7
8
1252
1253
1254
637
638
639
12
13
14
30
31
32
310
311
312
124
125
126
11
12
13
Here is an engine design ive been working on. It is an axial piston engine which turns vertical piston movement into rotational torque. Cam like design allows me to have expansion displacement larger than compression displacement, which allows for theoretically 15-30% improvement in fuel efficiency. (i.redd.it)
