This is a discussion about the use of the new engine type for an application where this engine is the power source for a drone. I have discussed this new engine as a power source either for a military robot or for a military drone in some of my other webpages. These pages as links are given below:
Design Discussion of a 10000 Watt Engine in a Small Cargo Plane
Design Discussion of a new “Heart” for a robot
The Pistonrobot receives a New Heart
The Design Discussion of a 10000 Watt Engine in a Small Cargo Plane is the first webpage I created on the use of this engine design as the power source for an uncrewed payload carrying drone.
The 10000 Watt Engine design discussion webpage has a lot more details about the history of this engine and the beginning thinking about using this engine design in an uncrewed military small cargo plane.
I plan to create a detailed YouTube about the 20000 watt of this engine.
I made a detailed YouTube (2hr 30 min) discussing the 500 watt version of this engine. Included in the this video is a basic and short discussion of how this 500 watt engine works. You can watch it here. This 500 watt version is for use as the power source for a military human mimicking walking robot. This engine would allow a 198lb 6ft tall human mimicking robot fabricated from 2205 alloy stainless steel (if initially given 1.5 gallons of diesel fuel) to walk along at 2mph on level ground for 100 hours without swapping out anything, including not swapping out batteries.
For the drone we wanted to power with this engine design, 500 watts of mechanical output would be too small, so we changed the total engine mechanical power output to 20000 watts.
I should note here that multirotor flying devices, in order for them to obtain and maintain stable VTOL hover and/or VTOL flying, it is necessary that the drone’s cpu must continuously evaluate the tilt and movement status of the drone. Based on the cpu’s evaluation of the drone’s flying status, the cpu of the drone creates orders to independently and continuously modulate the rpm values of each of the propellers of the drone. This modulation of propeller rpm will keep the drone stable. With drones that use a distributed electric propulsion system their propellers are spun by electric motors. In this electric propulsion model this modulation of propeller rpm values is done with electronic speed controllers (ESC).
But our drone is a distributed hydraulic propulsion system. This means the motors spinning our props are hydraulic motors. An ESC device would be of no use to modulate the rpm values of a hydraulic motor, since there is no electricity involved in creating the torque to spin the propellers. However, for stable VTOL operation in any multirotor drone, independent and continous modulation of rpm values for each of the drone’s propellers is still required. Thus, there must always exist a system to allow the cpu of a multirotor drone to be able (digitally) to send out orders that will independently and continously modulate the rpm values of the various propellers.
This rpm modulating device will need to be a type of valve because rpm values of hydraulic motors are controlled by the flow rate of hydraulic fluid to these motors. Thus, the cpu for a distributed hydraulic multirotor drone doing stable VTOL hover or flying must be able to send digital control commands to a valve system where this valve system can independently and continuously control the hydraulic fluid flow to each of the hydraulic motors spinning the propellers. This valve system approach will work to modulate propeller rpm values because modulating the amount of hydraulic fluid flow to a hydraulic motor will also modulate the rpm values of that hydraulic motor.
I have created a design for this hydraulic motor rpm modulation control valve and I list below two links to two different YouTubes that I made describing this valve design.
This YouTube (47 minutes long) is a brief discussion of this valve design: Watch Video Here
This YouTube (2 hr 13min long) is a more detailed description and discussion of this valve design: Watch Video Here
This new engine design has no meaningul acoustic or thermal or diesel odor/fume/smoke output (it is negative on these signatures, the military refers to these issues as signatures).
It seems a nice choice (for a military drone application) if that drone has negative signatures for acoustic, thermal, and odor/smoke. This 20000 watt version of this engine can give these negative signatures to that military drone.
This webpage is a discussion of the new engine design at 20000 watts mechanical power output, this engine being in this new drone.
Specifications for this drone include: a) wingspan about 13ft, b) the fuselage dimensions are 7.5 feet long, 3.2 ft wide, the fuselage is an airfoil, at its widest the fuselage is 2ft thick, the engine is inside the fuselage, but the engine is not inside the cargo space in the fuselage, the non-engine containing fuselage cargo space is about 11.7 cubic ft, the non-engine containing cargo space dimensions are 75 inches long, 25 inches wide, 10 inches tall, c) the drone is VTOL for take off and landing, it does not need a runway, d) it can transition to fixed wing flying. Fixed wing cruising can be at an airspeed of 60mph, e) weight values: (drone wt + 80lbs payload wt + 60lbs diesel fuel load) gives a take off wt of 294lbs, e) via VTOL, the drone can rise to 400ft altitude in 30 seconds, using about 2lbs fuel, f) the drone (starting with a take off fuel load of 60lbs diesel fuel, and keeping a safety fuel hold back of 12 lbs), this drone (with its 80lb payload) can cruise at 60 mph and 6000 ft altitude for 10 hours. I plan some more videos to more completely describe this drone and its new 20000 watt engine.
We wanted folks to be able to evaluate this drone and this engine via detailed, dense, and complex scientific discussions with Google Ai about this drone.
However, (this is how Google Ai works) with a session (chat) with Google Ai, the person must first explain to Google Ai what the person is talking about.
This drone and its engine are complex enough that getting Google Ai “up to speed” would require hours of typing. We think we have a method not to have to do all this typing.
Google Ai will allow folks to upload to Google Ai explanatory pdf type files where these pdf’s explain the issue at hand. So instead of hours of typing over and over the same information for each new chat, one can get Google Ai “up to speed” in about 2-3 minutes via sending Google Ai the relevant pdf files.
For this new engine at 20000 watts mechanical power output and this particular new drone design, we have created 24 pdf files for upload to Google Ai. Our advice is: a) look at the pdf files yourselves, they tell a lot about the topic, and b) upload these files to Google Ai before starting a complex conversation with Google Ai on the topics of this new 20000 watt engine and this new drone.
We suggest download the 24 pdf’s to your computer then upload probably 6 at a time to Google Ai.
Our experience has been that, for an ongoing Google Ai chat session, Google Ai has limits on how much one can upload to the chat box of the session at one time. But inside the ongoing Google Ai chat session repeat uploads of 1-6 pdf files for each upload event seems to work ok.
Thus, we advise, just keep uploading small batches of these pdf files until all 24 have been sent in. Once all the 24 uploads have made it the ongoing Google Ai chat session, then one can begin a dense scientific discussion with Google Ai about this 20000 watt engine and this drone.
These downloads are here on this webpage. They are free for download, if you click on the download link oval for a particular pdf, then the website will upload that pdf file to your computer. Below is a image of the filenames of these 24 files.
