an embodiment of the internal continuous combustion engine system of the present invention is depicted in fig1 . in this embodiment , the system is installed in an opoc engine of the type referenced above . however , it is noted that this invention is also suited as an improvement for all internal combustion engines of both four and two stroke types , as well as those that employ either diesel or spark ignition systems . in fig1 , an external , remote reactor vessel 100 is shown that provides the continuous combustion of working fluid that is supplied to the cylinders of the engine . cylinders 200 and 300 are similar in configuration ; and as is typical in an opoc engine , each cylinder contains a pair of opposing pistons ( not shown ) that operate in opposite phases with respect to the pair of pistons in the opposing cylinder . that is , when the opposing pistons of cylinder 200 each reach their top - dead - center (“ tdc ”) positions , the pistons of the opposing cylinder 300 are at their approximate bottom - dead - center (“ bdc ”) positions . electro - mechanical valving mechanisms 210 / 220 and 310 / 320 are attached to respective cylinders 200 and 300 at the ports that would normally be designated for fuel injection near the tdc volume defined in each cylinder . the valving mechanisms are electrically controlled to provide delivery of combustion gases ( working fluid ) from reactor vessel 100 to the cylinders when the pistons have each reached their tdc positions and provide the expansion energy required to complete the power stroke of the piston ( s ) in each cylinder . with reference to fig1 , 5 and 6 , the reactor vessel 100 is configured to have a combustion chamber 110 , an air supply chamber 120 and an exhaust gas chamber 102 . air supply chamber 120 has a plurality of supply ports 150 and 152 that are connected via high pressure tubing or hoses 154 and 156 respectively , to receive compressed air from each cylinder . ( it should be noted that the representation of the reaction chamber being outside the structure of the engine and high pressure tubing or hoses could conceivably be integrated as a structural part of the engine with high pressure passages formed therein .) air supply chamber 120 also has an outlet port 122 that supplies compressed air freely into combustion chamber 110 . a swirl chamber 142 is located between the air supply chamber 120 and the combustion chamber 110 and provides an air / fuel mixture to the combustion chamber via its injection nozzle 162 . the exhaust gas chamber 102 is located at the opposite end of the combustion chamber 110 and is in communication with the combustion chamber via exit port 116 . the exhaust gas chamber 102 has a plurality of exhaust ports 140 and 141 that are connected via high pressure tubing or hoses 144 and 146 respectively , to provide the high pressure and heated exhaust gas working fluid to each cylinder . in addition , a feedback passage 112 is provided to allow a small portion of exhaust gas to be scavenged via scavenging port 109 from the reaction vessel and provided to the fuel entry passage 132 adjacent the fuel injector 130 . combustion chamber 110 supports the continuous combustion of a vaporized fuel , exhaust gas and air mixture that exits the chamber as pressurized and heated exhaust gas through exit port 116 in end wall 114 . a fuel injector 130 provides the atomized fuel vapor spray 134 and is supplied to the combustion chamber via a swirl chamber 142 and an injection nozzle 162 . a venturi effect is produced by the compressed air entering combustion chamber 110 through port 122 . since the port 122 is surrounded by injection nozzle 162 , this effect produces a vacuum in swirl chamber 142 which draws scavenged exhaust gas from feedback passage 112 mixed with the fuel vapor spray 134 provided by fuel injector 130 . the scavenged exhaust gas provides preheating of the fuel vapor prior to becoming mixed with the compressed air in the combustion chamber 110 . any conventional ignition device 107 can be employed . ignition sources typically could include a spark plug , glow plug , or spark discharge device to establish the initial ignition . however , once combustion is commenced , there is no need to provide further ignition , since the system will feed the combustion chamber with a fuel air mixture that is continually sustained until the fuel supply is shut off or combustion air supply is terminated . once combustion is commenced , the combustion gasses are under high pressure and exit through exhaust port 116 , into exhaust chamber 102 . from there , the exhaust gasses are routed into each cylinder when the corresponding pistons have reached their tdc positions by the electromechanical valving mechanisms 210 / 220 and 310 / 320 . in order to avoid redundant descriptions , the following discussion will focus on valving mechanism 210 / 220 . the electro - mechanical valving mechanisms 210 / 220 and 310 / 320 are identical in construction , function and operation , and only differ by being operated in different phases . in fig2 , 3 and 4 , the electromechanical valving mechanisms 210 / 220 are depicted as mounted in a common housing 211 . the valving mechanism 220 contains a spool valve 222 which is linearly movable to open exhaust gas port 148 to supply combusted exhaust gas working fluid under pressure to the cylinder 200 during the power stroke phase following the pistons reaching tdc . the spool valve 222 also is linearly movable to close off that supply and open up the compressed air port 158 . the valving mechanism 210 drives a seated valve 212 that is in direct communication with the cylinder 200 . at predetermined times , valve 212 is opened to allow the compressing air from the cylinder to feed reactor vessel 100 and then to allow the high pressure exhaust gas working fluid to enter the cylinder . in this embodiment , valving mechanism 220 includes a solenoid which includes a pair of electromagnetic coils 228 which are used to drive a ferrous plate 226 mounted on a rod 227 that is connected to spool valve 222 . in this embodiment , rod 227 extends through an aperture 221 in the housing of valve mechanism 220 . a biasing spring 224 is provided to position the spool valve 222 in the position shown in fig2 , 3 and 4 . valving mechanism 210 includes a solenoid having a pair of electromagnetic coils 218 a and 218 b which are used to drive a ferrous plate 216 mounted on a rod 219 that is connected to seated valve 212 . a biasing spring 214 is provided to position the seated valve 212 in a half open condition by interacting with a plate 217 mounted on rod 219 when the coils 218 a and 218 b are not energized . in this embodiment , rod 219 is shown as extending through an aperture 215 in the housing of valve mechanism 210 . when coils 218 a and 218 b are energized , valve 212 is held in the closed position , as shown in fig2 , 3 and 4 . swirl chamber 142 is depicted in fig6 . swirl chamber 142 has an internal spiral cavity formed with a fuel injection entry passage 132 on the outer portion of the spiral cavity . a plurality of mixing vanes 145 are positioned in a circular pattern to cause disturbance and mixing of the fuel vapor with the scavenged exhaust gas prior to being forced through port 122 and into combustion chamber 110 . fuel injector 130 is mounted on entry passage 132 so that atomized fuel vapor spray 134 is evaporated into the hot and pressurized exhaust gas scavenged via scavenging port 109 and delivered through feedback passage 112 . the vaporized fuel and exhaust mixture is then drawn into the internal swirl chamber 142 by the venturi effect of compressed air being jetted out through port 122 . the vaporized fuel and exhaust mixture is mixed with the compressed air from the cylinder ( s ) and combusted in combustion chamber 110 . in operation , as the piston ( or pistons in the case of an opoc engine ) in cylinder 200 starts its compression stroke , coils 218 a and 218 b of the valve mechanism 210 are energized to move plate 216 and rod 219 upwards a distance x - x ( fig4 ) to close the valve 212 . prior to the piston reaching its tdc position , coils 218 a and 218 b are de - energized and the force of biasing spring 214 causes seated valve 212 to open . coils 228 a and 228 b of valve mechanism 220 are energized to open compressed air port 158 as the piston approaches tdc . the force applied to plate 226 by the energized coils 228 a and 228 b is sufficient to overcome the force of biasing spring 224 and draw the spool valve 212 to the right and close exhaust gas port 148 while opening compressed air port 158 . at tdc , the coils 228 of valve mechanism 220 are de - energized and the spring 224 forces plate 226 and rod 227 to the left a distance y - y ( fig4 ) to close the compressed air port 158 and open the exhaust gas ( working fluid ) port 148 . during and near the end of the compression stroke of the piston , compressed air is supplied through conduit 154 to compressed air chamber 120 where it is allowed free passage into combustion chamber 110 via nozzle 122 . by cycling the valve mechanisms in synchronism with the stroke cycle of the pistons , compressed air is supplied to and working fluid , in the form of exhaust gases , are released from the combustion chamber to support continuous combustion therein . when one considers that another cylinder 300 is working in opposite phase with cylinder 200 , it can be seen that there may be a pulsated backpressure , but essentially continuous delivery of compressed air to the combustion chamber ; and a pulsated but essentially corresponding continuous release of working fluid from the combustion chambers . with an increased number of cylinders connected to the combustion chamber backpressure effects will be reduced . before tdc in cylinder 200 and when compressed air is entering air supply chamber 120 from conduit 154 , combustion is continuously supported in combustion chamber 110 and after tdc the combustion gasses are being supplied to cylinder 300 through valving mechanisms 310 / 320 after the piston ( s ) in that cylinder reached tdc . shortly after the piston ( s ) in cylinder 200 reach tdc , valving mechanism 220 is de - energized to allow spring 224 to move spool valve 222 to the left in order to both close compressed air port 158 and open exhaust gas port 148 . valving mechanism 210 opens seated valve 212 to allow exhaust gases to enter cylinder 200 and provide the necessary energy to drive the piston ( s ) during its power stroke . valve 212 is then closed before the piston reaches its bdc position and remains closed until the piston enters its compression stroke . combustion is substantially continuous , even though fuel injection may be controlled with pulse width modulation (“ pwm ”) to regulate the intensity and power generated by the combustion , the result is less components and improved operation and maintenance . the fact that there are no more pulsating explosions occurring in each cylinder , the noise generated due to such explosions is eliminated . in addition , nox emissions are substantially reduced with an extremely high exhaust recirculation rate , while fuel economy is also enhanced . as can be seen by the drawings and accompanying explanation , the present invention is a unique improvement over conventional engines . and while the embodiment shown here is the preferred embodiment , it shall not be considered to be a restriction on the scope of the claims set forth below .