US1726491A - Pressure-fluid generator - Google Patents

Description

Aug. 27, .1929. C, E JOHNSN- i A1,112.6,491

PRESSURE FLUID GENERATOR Filed July 31, 1923 Patented Aug. :27, -1929.

UNITED STATES CHARLES EDMUND JOHNSON, OF WEST HOBABT, TASMANIA, AUSTRAL'IA.

PRESSURE-FLUID GENERATOR.

Application led July 31, 1923, Serial No.

This invention refers to the thermocyclic production of combined or mixed combusted gases as hydrocarbon gas and Water vapor herein termed gas-vapor usable Whether or not in combination With steam and or other gases in engines of vall kinds for the production of kinetic energy. And as anfexample of such production and of the mechanism therefor and its functional parts and the purposes and uses thereof reference is made to the subject matter of present applicants prior application for Letters Patent of the United States of America No. 432,350, filed 21st of December 1920. i v

And this invention relates particularly to compression and collection of the gases of exploded or `combus'ted gaseous mixtures principally for use as components of thementioned gas-vapor or as a pressure gasa- According to this invention a charge of gaseous fuel after admission into a cylinder herein termed compressor cylinder or compressor is compressed by a piston and ignited by electric and or other devices controlled by the pressure. The explosion pressure acting upon the piston in the compressor retires said piston ready for compressing another charge while the gas pressure opens a valve to a storage reservoir or gasometer into which (leaving attenuated or partial vacuum `in said compressor) the pressure l gases of combustion enter for service thereafter and the practically empty compressor b eing reopened to the supply of gaseous fuel by valve motion or otherwise is again charged therewith and the described alternating operations repeated and so on.

And these present improvements have been devised in order that the described cycles of operations may be achieved more'advantageously and by means of cheaper and more efficient mechanism than heretofore possible.

But in order that this invention may be more readily understood and carried into practical effect it will now be described With reference to the drawings which are more or less schematic accompanying and forming part of this speciiication.

50 Fig. 1 is a diametrical section view of a plant for producing `(that is to say compressing and collecting) combustion gases having duplicate compressors with a common piston or ram. Fig. 2 is a partial sectional plan of a modification of'the double 654,857, and in Australia Karch 10,1923.

action two stage compressor specially for high pressures. Figs. 3 and 4 are plan and elevation respectively of a modified construction of the'double ended ram. Fig. 5 is a sectional elevation of a preferred type o f pump for exploded mixture pressure action for pumping between a storage of Water and compressor water jacket, and Fig. 6 is an .enlarged viewof a pressure controlled 1gn1t1on device.

Fig. 7 is a sectional plan view taken on the line 7-7 of Fig. 8 and Fig. 8 a central sectional elevation taken on the line 8-8 of Fig. 7, of an exhaust valve used in the present engine;

Fig. 9 is a transverse section taken on the line 9-9 of Fig. 1;

Fig. 1.0 is a similar view to Fig. 9 taken on the line 10-10 of Fig. 1. I

The opposed cylinders or compressors 8 and 9 each have an outer end or back or 'head 1() with orifice 11 therethrough for valves 12 normally closing by pressure of helical spring 13. In the wall of each compressor near the head or back is a port or ports 14 with non-return etliux valve 15 Whose discharge is through pipe 16 into the concentric annular outer chamber or gasometer 17.

Each compressor has a priming inlet 18 and is provided With 'a passage to the open starting relief outlet 19 open to the air, and with gas ducts 2O (see Fig. 6) and one or more spark plugs 21.

An enveloping casing say cylinder 22 connects the comprcssors and 9 and forms a guide for a double ended ram 23 having a medial enlargement 24 With collar 25 acting as a shoe or piston and preferably having a piston ring 26. Slide rods 27 having thereon return springs 28 are operable by collar 25 and in turn operate throttle vanes 29 in fuel supply pipes 30 in proper timed re-` lation to the movements of the piston 23.

The throttle vanes 29 are carried bytrunnions in the pipes 30 as shown and one of the trunnions for each vane is extended outside the pipe 30 and carries a toothed pinion not shown adapted to be operated by a toothed rack or the like on the rod 29 or by other suitable or Well known mechanism. The collar piston 25 cushions each compressor ram 23 at the end of-its, Withdrawal stroke against a small volume of air on its opposite face in cylinder 22 and this cushioning if desired may be assisted by a spring or springs 7 interposed between the piston enlargement 24 and the respective fronts 'of compressors 8 and 9. 32 is a master throttle for controlling the supply of fuel to the branch pipes 30, and`33 is a com-mon) air intake orifice provided with a control shutter 34.

Outwardly of each "gas duct l20 is a cylinder 35 with. a piston 36 adapted to close entrance to said duct. The travel of this piston 36 is I limited by stops 37 and its rod 38 is adapted-to reach an electrically charged contact point 39 in an ignition control chamber40 from which leads a pipe 41 through a valve 42 (see Fig.l 1) to the gasometer 17. Compressors 8 9 have water jackets 43 with convenient inlets and outlets while the cylinder casing 22 has a drain pipe 44 and pet-cock 45 and its interior and the contacting parts therein are lubricated through pipe with oil cup 46. The chambers 47, as well as the chamber 17 may be used for collection or storage purposes.

In operation the cmpressors 8 and 9 are alternately charged with a mixture of combustible fuel and air (say initially by a small pump) or primed through inletsv 18 and the charge in one compressor say 8 fired by an independent starter say a battery ignition device by means of spark plug 21. The explosion of the fired charge drives the combusted gases through outlet ports 14and` valves 15 and outlet pipe 16 to the gasometer 17 under substantial pressure and at the same time forces ram 23 from compressor 8 into compressor 9 compressing the meanwhile admitted charge therein which in turnis ignited by operation of the p iston 36 in cylinder 35 into which a small volumeof the compressed fuel of compressor 9 is forced through duct 20 and against said piston 36 moving the latter until its rod 38 contacts the point 39 closing an electric circuit and so causinga spark at the plug 21 and igniting the charge in the said compressor 9 and returning the-ram to other end of its stroke and compressing the charge educed therein through inlet valve 12 on the last stroke and so on the alternative compressing and exploding operations continuing with increasing rapidity until the outlet 19 which is preferably opened during the initial starting-operations is closed by hand.

As the pressure increases in the gasometer 17 the ignition of the succeeding charges is delayed proportionally owing to the pressure from the" said gasometer 17 passing through the pipe 41 and control valve 42 to cylinder 35 and countering the compressor pressure on the piston 36 and so delaying and retarding contact of rod 38 with point 39.

In a modified construction shown in Fig. '2 the casing 22 has two inlet valves 72 corresponding to the compression head inlet valves 12 before mentioned and the fuel supply pipe 30 is altered accordingl and it also as a plurality of discharge va `ves 73 with crossed' delivery pipes 74 to the said compressor head inlet valves 12. It will be understood that in the operation of these arts the casin 22 receives the initial charge rom the car uretor and partially compresses the combustible gases which on compression are discharged to the com ressors 8-9 and further compressed explo ed and collected as before explained.

Referring to Fi 5 the water pump haspiston 75 in cylin er 76 (open to compressors 8--9) and its piston rod passes into pump barrel 77 and forms the plunger 78 and in said barrel are suction inlet and Valve 7 9 and discharge and outlet valve 80. At the end of said barrel is a pump stroke regulator comprising a spindle 81 with a head or butt 82 passed Ythrough screwed and glanded casing 83 which operates during the compression stroke when the piston moves in pump 76 until the plunger 78 meets butt 82 (limiting the length of the stroke) and during the suction stroke the piston 75 retires again the while causing suction and delivery of water to the jackets 43.

In large duplicate compressors of the kind set forth the frictional resistance of the working parts is likely toV be excessive as also would be their wear and tear and therefore special means as illustrated in Figs. 3 and 4 to overcome such difiiculties have been devised. In this case the compressor ram 23 is hollow and encloses a weighted crankshaft 85 the ends of which extend through longitudinal slots 8G in the mid-portionof the ram and are mounted in bearings in a stationary sleeve or casing 84. From the crank 87 is a connecting rod 88 to a gudgeon 89 in one head of the said ram 23. The ram 23 reciprocatcs as above described but the greater part ofthe weight thereof is borne by the crankshaft 85 which reciprocatcs in its bearing (the slots 86) complementary to the movement ofthe ram 23.

lVhat I claim as my invention and desire to secure by Letters Patent is 2- 1.' A pressure fluid generator comprising .opposed compressor cylinders, a cylinder connecting said compressor cylinders, a ram working in said cylinders, a collar on said r'am constituting a piston working in said connecting cylinder, said-ram being balanced and governed through said collar by air cushions existing in said connecting cylinder, means for supplying a gaseous mixture to said compressor cylinders, ignition devices for exploding said mixture, a gasometer, means for conductingthe exploded llO gases from said compressor cylinders to said gasometer, and means for delaying the ignition of succeeding charges in the compressor cylinders proportionallytothe pressure in the gasometer, said means comprising an auxiliary cylinder, a piston limited as to movement in said cylinder, a duct at one side of said piston connecting said cylinder with a compressor cylinder, a pipe at the other side of said )iston connecting said auxiliary cylinder wlth the gasometer, a Contact forming part of the ignition circuit projecting into said auxiliary cylinder, and a rod on said piston adapted to engage said contact to effect ignition.

2. A pressure fluid generator comprising .opposed compressor cylinders, a cylinder connecting said compressor cylinders, a ram Working in said cylinders, a collar on said ram constituting a piston Working in said connecting cylinder, said ram being balanced and governed through said collar by air cushions existing in said connecting cylinder, means for supplying a gaseous mixture to said compressor cylinders, ignition devices for exploding said mixture, a gasometer, means for conducting the exploded gases from said compressor cylinders to said gasometer, and means for delaying the ignition of succeeding charges in the compresser cylinders proportionally to the pressure in the gasometer.

3. A pressure fluid generator comprising opposed compressor cylinders, a cylinder connecting said compressor cylinders, a ram working in said cylinders, a collar on said ram constituting a piston working in said connecting cylinder, means for supplying a gaseous mixture to said compressor cylinders, ignition devices for exploding said mixture, a gasometer, means for conducting the exploded gases from said compressor cylinders to said gasometer, and means for delaying the ignition of succeeding charges in the compressor cylinders proportionally to the pressure in the gasometer.

4. A pressure fluid generator comprising opposed compressor cylinders, a cylinder connecting said compressor cylinders, a ram working in said compressor cylinders, a collar on said ram constituting a piston Working in said connecting cylinder, means for supplying a gaseous mixture to said comressor cylinders, a gasometer, means for lgniting said mixture, means for delaying the ignition of succeeding charges in the compressor cylinders proportionately to the pressure 1n the gasometer, and means for conducting the explodedgases from saidl niting said mixture, means for delaying the A ignition of succeeding charges in the compressor cylinders proportionately to the pressure in the gasometer, and means for conducting the exploded gases from said compressor cylinders to said gasometer.

6. A fluid pressure generator comprising opposed compressors, a' head in each compressoihaving on opening, an inlet valve normally closing each opening, an exhaust port in each compressor, a concentric annular outer gasometer connected with said exhaust ports, an ignition device for each compressor, an enveloping casing forming a cylinder connecting said compressors, a double ended ram adapted to reciprocate Within said compressors, a medial enlargement on said ram, a collar on said enlargement acting as a piston Within said casing for cushioning said ramY at the end of its strokes, a fu'el supply pipe for each compressor, a throttle vane in each pipe, a slide rod for each pipe operable by said collar, an auxiliary cylinder for each compressor, a duct connecting each auxiliary cylinder and its compressor, a piston Within each auxiliary cylinder, stops adapted to limit the travel of said pistons, a rod on each piston, a contact point in each auxiliary cylinder projecting into the path of the piston rod, a pipe leading from each auxiliary cylinder to the gasometer, and a pressure control valve in said pipe.

In testimony whereof I have signed my name to this specification.

CHARLES EDMUND JoHNsoN.

ling in said connecting cylinder, said piston p

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