Thermal-gravity engine

Power plants – Motor actuated by accumulating and dumping liquid or fluent...


Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


60640, 60531, 60675, F03G 700, F03B 1706




A thermal-gravity engine is driven by a changing of the temperature of a vaporizable working fluid (55) in a closed-loop fluid system and the force of gravity operates on a reciprocating lever (12). One or more weight chambers (21), a storage chamber (24), and flow lines (25 and 26) therebetween are arranged in a closed-loop fluid flow system through which the working fluid is pumped. A temperature differential is produced between the two chambers to pump liquid from the storage chamber into each weight chamber in an up position to increase the weight of the weight chamber on an end of the reciprocating lever to move it down in response to the increased weight. The storage chamber is located below each weight chamber. A valve (28) in one flow line for each weight chamber operates to equalize the pressure in an upper portion of each weight chamber and the storage chamber when the weight chamber is in the down position and, when opened, the working fluid drains by gravity from each weight chamber back to the storage chamber to unload each weight chamber. Then the associated counterweight (18) moves each operating end back to the up position and the cycle is repeated to continuously oscillate the lever up and down. The oscillating motion of each lever is connected by a ratchet assembly to rotary motion and a flywheel is used to store the energy.

patent: 1260204 (1918-03-01), Keithly
patent: 4195486 (1980-04-01), Rivera-Cruz
patent: 4209990 (1980-07-01), Shelton, Jr.
patent: 4246756 (1981-01-01), West


Say what you really think

Search for the USA inventors and patents. Rate them and share your experience with other people.


Thermal-gravity engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal-gravity engine, we encourage you to share that experience with our community. Your opinion is very important and Thermal-gravity engine will most certainly appreciate the feedback.

Rate now


Profile ID: LFUS-PAI-O-42999

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.