thunderstorm80
1 kW
- Joined
- Mar 29, 2016
- Messages
- 383
Hi,
For short rides without pedaling, or long ones where you do most of the pedal work at slow speeds - the current Lithium batteries are enough.
But for very long ranges, or if you want to be able to cover a huge distance as a commuting route and do it fast (like 40-50kph), batteries are not enough anymore at the current technology. (the E-bike would have to get dangerously heavy)
I see a lot of portable generators for camping, but they are too powerful (2000W) and VERY HEAVY to be mounted on an E-bike.
Do you know of a small generator (that can produce about 700W) so that it won't be so heavy?
Or,
I know piston engines have a low power/weight ratio at those power magnitudes, but what about Wankel rotary motors?
I know Wankel didn't replaced the piston engine in our cars because it's not very good for engine-braking, but for the purpose I talk about where you need a constant torque and power - it could be very light and brilliant solution. (a fast revolving motor would need to output less torque and so it would be smaller - just like how Geared motors are smaller)
The last option I thought is about RC internal combustion motors for airplanes. Those spin at very high RPM's and so they can be small and elegant for the task. Do you know of a turn-key generator based on RC motor ?
Getting 220V 50Hz generator would be preferred, but DC voltages in the order of 80V as output should be fine too.
For short rides without pedaling, or long ones where you do most of the pedal work at slow speeds - the current Lithium batteries are enough.
But for very long ranges, or if you want to be able to cover a huge distance as a commuting route and do it fast (like 40-50kph), batteries are not enough anymore at the current technology. (the E-bike would have to get dangerously heavy)
I see a lot of portable generators for camping, but they are too powerful (2000W) and VERY HEAVY to be mounted on an E-bike.
Do you know of a small generator (that can produce about 700W) so that it won't be so heavy?
Or,
I know piston engines have a low power/weight ratio at those power magnitudes, but what about Wankel rotary motors?
I know Wankel didn't replaced the piston engine in our cars because it's not very good for engine-braking, but for the purpose I talk about where you need a constant torque and power - it could be very light and brilliant solution. (a fast revolving motor would need to output less torque and so it would be smaller - just like how Geared motors are smaller)
The last option I thought is about RC internal combustion motors for airplanes. Those spin at very high RPM's and so they can be small and elegant for the task. Do you know of a turn-key generator based on RC motor ?
Getting 220V 50Hz generator would be preferred, but DC voltages in the order of 80V as output should be fine too.