Pressurized fluid motor

The principle of the acid/soda fire extinguisher is applied to generating pressure in the expansible chamber of a power plant or engine. Pressure is generated in a first container by adding sulfuric acid to a bicarbonate of soda solution and the pressurized solution is applied alternatively to the two sides of a double acting piston. The unpressurized side of the piston is alternatively connected to a second container for the collection of used solution. When the solution in the first container is used up, the solution in the second container is activated by the addition of more sulfuric acid and the cycle is reversed.

BACKGROUND OF THE INVENTION 
The present invention relates to power plants and the invention is 
particularly concerned with a special motive fluid used within an 
expansible chamber. 
According to the present invention, the principle of the sulfuric 
acid/bicarbonate of soda fire extinguisher is used to generate pressure 
for use in an expansible chamber of a power plant or engine. 
It is known in the fire protection art to put out fires with an acid/soda 
extinguisher. This extinguisher has a closed chamber containing a solution 
of bicarbonate of soda. At the top of the extinguisher, above the soda 
solution, is an open top cup containing sulfuric acid. When the 
extinguisher is inverted the sulfuric acid is mixed with the bicarbonate 
of soda solution and carbon dioxide is released with an increase in 
pressure in the closed container. The force of the carbon dioxide released 
drives the water solution mixed with carbon dioxide through a hose and 
nozzle for extinguishing fires. 
As established by a preliminary search, no prior art could be found wherein 
the above principle is used to operate a power plant or engine with an 
expansible chamber. 
SUMMARY OF THE INVENTION 
It is an object of the present invention to provide a power plant which 
does not release harmful and toxic gases to the atmosphere. 
Another object of the present invention is a power plant which does not use 
organic fuels. 
Still another object of the present invention is a power plant where the 
fluid used is collected in a reservoir and recycled without exposure to 
the atmosphere. 
According to the present invention, pressure is generated in a first 
reservoir or container by adding sulfuric acid to a bicarbonate of soda 
solution. The pressurized solution is applied alternatively to the two 
sides of a double acting piston while the unpressurized side of the piston 
is alternatively connected to a second reservoir for the collection of 
used solution. 
When the solution in the first reservoir is used up the solution in the 
second reservoir is activated by the addition of more sulfuric acid and 
the cycle is reversed with pressure coming from the second reservoir and 
the wasted solution being collected in the first reservoir.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
With particular reference to FIG. 1, the double acting piston designated 
generally as 2 has a piston 4 connected to a single throw crank 6 by a 
piston rod 8. The crank 6 is mounted on crank-shaft 10 and flywheel 12 is 
also mounted thereon. 
Valve gearing designated generally as 14 and shown in detail in FIG. 2 
controls adjustable tappits 15,17,19,21,23,25,27 and 29 which are mounted 
on valve control rod 16. 
Container 18 having an inlet 20 and an outlet line 22 is first filled with 
a solution of sodium bicarbonate (NaHC0.sub.3). Sulfuric acid from 
container 24 is introduced into container 18 by conduit 26 and cutoff 
valve 28. 
The sulfuric acid introduced into container 18 reacts with the bicarbonate 
of soda and generates carbon dioxide which causes a pressure build up in 
container 18 as indicated on pressure gauge 31. A solution of water, 
carbon dioxide and bicarbonate solution then proceeds out of outlet line 
22 past check valve 30 and into line 32 which branches into lines 34 and 
36. At this point, valve 40 controlled by tappets 15 and 17 is open and 
valve 38 controlled by tappets 19 and 21 is closed so that the solution 
under pressure is directed into lines 51 and 50 into chamber 38 of piston 
2. 
At the same time pressurized solution enters chamber 48, spent solution is 
evacuated from chamber 46 by way of lines 44 and 41 into valve 56, held 
open by tappits 27 and 29 while valve 54 is actuated closed by tappets 23 
and 25. 
The spent fluid passes through valve 56 into lines 60,62 and 64 and past 
check valve 66 into line 68 and container 70 having pressure gauge 33. 
As the piston 4 proceeds to the left and into chamber 44, the camshaft 10 
rotates flywheel 12 and valves 40 and 56 are closed as valves 38 and 54 
are opened. 
Pressurized fluid now proceeds through lines 32 and 34 through valve 38 
into lines 42 and 44 into chamber 46 to apply pressure to the left side of 
piston 4. 
As the left side of piston 4 is pressurized, spent fluid leaves chamber 48 
through lines 50 and 52 into open valve 54 and from there into lines 58, 
62 and 64 through check valve 66 into line 68 and container 70. 
When the solution in container 18 is spent as indicated by a decrease in 
the internal pressure of the container by gauge 31, another portion of 
sulfuric acid from container 24 is added to container 70 by way of line 26 
and valve 72. The sulfuric acid held in container 24 is ejected by means 
of air pressure as indicated by pressure gauge 35. 
After the addition of sulfuric acid to the bicarbonate solution of 
container 70, pressure is again generated and the solution indicated as 
under pressure by gauge 33 passes into line 68 through check valve 74 and 
into lines 32,36 and into valve 40 whereby chamber 48 is again pressurized 
and chamber 46 is evacuated of spent solution. 
The spent solution from chamber 46 proceeds through lines 44 and 41, valve 
56, lines 60 and 62 through check valve 76 and from there to chamber 18 by 
way of line 22. 
The second stroke pressurized by chamber 70 then proceeds as it did in the 
second stroke from chamber 18. 
The valve gear 14 is shown in FIG. 2 where flywheel 12 mounted on camshaft 
10 actuates the gearing. Rod 3 having articulators 5 and 7 rocks L-shaped 
arm 9 having a pivot at 11 and an articulation at 13. 
The rocking of arm 9 moves valve rod 16 back and forth so that tappets 
(15,17), (19,21), (23,25) and (27,29) open and close valves 40, 38, 54 and 
56, respectively. 
Best Mode of Carrying Out the Invention 
The present invention as now embodied has the following engine 
specifications: 
Maximum horsepower 2.9 
Maximum pressure generated 80 lbs/in.sup.2 
Area of piston 1.25 in.sup.2 
Area of Piston (rod side) 0.75 in.sup.2 
Approximate RPM 64 
Length of stroke 2.5 in x 2 
1 stroke=5 fluid oz 
Maximum output=320 fluid oz/min at 80 psi 
The containers 18, 24 and 70 are modified stainless steel acid/soda fire 
extinguishers and the bicarbonate of soda and sulfuric acid was purchased 
from George D. Feidt & Co., Glenside, Pennsylvania. The concentration of 
bicarbonate of soda used was 11/2 lbs of bicarbonate of soda in 21/2 
gallons of water. For generation of pressure, 4 fluid ounces of sulfuric 
acid were added to the bicarbonate of soda solution. 
Air pressure is applied to container 24 so that sulfuric acid can be 
ejected by way of an air pump.