Let's follow Tokyo's lead in eliminating the use of diesel cars for mankind.

Let's follow Tokyo's lead in eliminating the use of diesel cars for mankind. * Let's monopolize large, medium and small size cars in the world with a patent./Partners are wanted. * Let's monopolize large, medium and small size ships in the world with a patent./ Partners are wanted. * Let's monopolize large, medium and small size power vehicle in the world with a patent. / Partners are wanted. * Let's monopolize large, medium and small size outboard motors in the world with a patent. / Partners are wanted. * Let's monopolize large, medium and small size industrial engines in the world with a patent. / Partners are wanted. * Let's monopolize large, medium and small size grass cutting machines in the world with a patent. / Partners are wanted. * Let's monopolize large, medium and small thermoelectricity supply in the world with a patent./ Partners are wanted. * Let's monopolize every kind of power machines in the world with a patent. / Partners are wanted. * Let's prevent participation in the middle of the project.

FIG. 23 Top Dead Center 15°after Top Dead Center 30°after Top Dead Center 90°after Top Dead Center Bottom Dead Center 75°after Top Dead Center 90°after Top Dead Center 180°after Top Dead Center FIG. 24 180°before Left Dead Center Right Dead Center 110°before Left Dead Center 70°after Right Dead Center 90°before Left Top Center 90°after Right Dead Center 45°before Left Dead Center Exhaust starts before 135°after Right Dead Center Predominance of High Performance Energy Conservation Cycle Engine 1. Let's invent high performance energy conservation cycle engines by making a profound basic study. Let's stop emitting maximum thermal energy near dead center by looking from a different angle.

(1.1) (FIG.23) If all thermal energy is emitted at top dead center of 4 cycle gasoline engines, non-rotational emission of thermal energy loss becomes 100% because it does not generate rotation power. Therefore, the current method, which all thermal energy is emitted near top dead center, is a big loss. Suppose all thermal energy is emitted at crank angle 90° after top dead center, heat efficiency becomes maximum and loss approaches 0%.

4 cycle gasoline engines release most thermal energy including maximum thermal energy at around dead center including before dead center under static pressure. Thermal energy emission amount around 90 degrees after dead center is reduced down to one sixth and effects on piston in static pressure, non-rotational emission of thermal energy loss, which is maximum loss, falls to around 40%.

(1.2) (FIG.23) In the case of Wankel engine, thermal energy emission loss , maximum frictional loss, at near dead center effects on both rotation of false crank engine and rotor, then non-rotational emission of thermal energy loss becomes very big, as much or more than 65%.

FIG. 25 FIG. 26

(1.3) (FIG.24) As for energy conservation cycle engine, for example, at near dead center including before dead center, reduce diameter of reduced diameter main combustion chamber down to one fifth of enlarged combustion chamber by energy conservation cycle. Making stroke volume of reduced diameter piston, which ejects from enlarged diameter piston, = thermal energy emission amount 1/25. Making influence of maximum bearing load, frictional loss, and preignition & abnormal combustion 1/25, constant great approach isolation combustion is made 25 times. During isolation combustion, maximum combustion pressure keeps going up. For example, before cancellation of isolation combustion at 60 degrees after dead center, the maximum combustion pressure becomes equivalent to that of a diesel engine at compression ratio equivalent to gasoline engine in the combustion chamber with constant volume or more.

Thermal energy of increased maximum combustion pressure is intensively applied to the head of the enlarged diameter piston instantaneously from a gap between reduced diameter main combustion chamber and reduced diameter piston when the isolation combustion is canceled, and rotation power is increased by dynamic pressure and reaction. Making non-rotational emission of thermal energy loss to be reduced to near 0%, thermal efficiency exceeds 30% comparing to 4 cycle gasoline engine.

2. Let's adopt rotary motion in the same direction making use of lessons from established technology. Let's reduce the secondary loss by adopting perfect elasticity collision stroke.

(2.1) (FIG. 23) The secondary loss of 4 cycle gasoline engine is kinetic energy reduction loss which is consumed by stroking weight of reciprocating motion area such as piston. In the case of engine of which the stroke part is lightened to a limit, the kinetic energy reduction loss is around 30%. As for reciprocating motion of a pendulum, of which kinetic energy does not decrease, even if the weight is made 3 times as heavy, speed of reciprocating motion is the same. In the same way, if the weight of reciprocating motion part like piston of 4 cycle gasoline engine is doubled, there are no 4 cycle gasoline engines to run because kinetic energy reduction loss becomes 60% ore more.

(2.2) (FIG.23) The best lesson is Wankel's rotary engine. After a basic study, Dr. Wankel thought that thermal efficiency could be doubled and specific volume & specific weight could be reduced to a half by making kinetic energy reduction loss of 4 cycle gasoline engine which was 30% closer to 0%. Then he invented a rotary engine of which all kinetic parts rotate in the same direction. In cooperation with many big firms, he succeeded to reduce kinetic energy reduction loss to around 5% same as false crank engine as well as reduce specific volume & specific weight to a half.

(2.3) (FIG.25) Then in order to reduce kinetic energy reduction loss, I realized to double supercharging pressure by adopting various kind of rotating supercharging of which all kinetic parts rotate in the same direction. I invented an energy conservation cycle gasoline engine which adopted a structure of perfect elasticity collision stroke or perfect elasticity collision opposed stroke. With perfect elasticity collision stroke, it is proved that kinetic energy does not decrease. I made kinetic energy reduction loss of 4 cycle gasoline engine, which is around 30%, closer to 0%.

Energy conservation cycle engine is most suitable for piston direct drive stroke with crank shaft because it adopts enlarged diameter piston and complicated piston or 4 cycle can be eliminated. Therefore, if right dead center and left dead center can be combustion stroke as a 2 cycle double ended piston, energy conservation cycle engine of perfect elasticity collision stroke or perfect elasticity collision opposed stroke can be realized. I compacted and simplified the structure like reducing opposed piston volume to 1/4.

By reducing non-rotation emission thermal energy loss by 30% and reducing kinetic energy reduction loss by 20%, thermal efficiency of energy conservation cycle gasoline engine increases by about 50% up to 70% or so comparing to 4 cycle gasoline engine.

3. Let's intensively inject thermal energy emission to the target at high speed to increase output power. Let's adopt 2 step-combustion, high pressure high temperature combustion and very high speed agitated combustion, to realize a pollution reduction combustion.

(3.1) (3.2) (FIG.23) Because combustion chamber of 4 cycle gasoline engine or rotary engine is formed between cylinder head inner face and piston head or between rotor housing and rotor between side housings, maximum combustion pressure and maximum combustion temperature are added to combustion chamber are large. Then the combustion chamber requires cooling and air tightness. Once piston starts to retreat from dead center, volume of combustion chamber rapidly increases, due to extreme non-constant combustion, combustion pressure and combustion temperature are radically lowered, and combustion condition shifts to the worst condition. If Nox is reduced for combustion, unburnt gas increases, and if unburnt gas is reduced, Nox increases. It leads to increase combustion pollution.

(3.3) (FIG.24) All thermal energy of fuel is better to be used under dynamic pressure than under static pressure. The faster the injection speed is, the better. Especially, it is the best to intensively inject all thermal energy instantly. Combustion chamber of energy conservation cycle engine is 2 step-combustion which are leakage reduced diameter main combustion chamber in non-sliding area exclusively for high pressure high temperature agitated combustion and air tight enlarged diameter combustion chamber exclusively for low pressure very high speed agitated combustion. In the first combustion, due to isolation combustion at reduced diameter main combustion chamber isolated by reduced diameter piston, reduced diameter piston retreats to the optimal position and maximum combustion pressure keeps going up until isolation combustion is canceled, for example, up to 60 degrees after dead center. Combustion gas in the condition at maximum combustion pressure of greatly increased thermal energy by 25 times constant great approach isolation combustion is intensively injected to the head of enlarged diameter piston at very high speed form a gap between reduced diameter main combustion chamber and reduced diameter piston. By influence of dynamic pressure plus reaction of increased thermal energy, rotation power is made 3 times bigger than static influence of existing gasoline engines.

Due to high pressure high temperature agitated long combustion which is near to 25 times constant combustion, combustion is improved greatly, and no-pollution combustion can be realized without unburnt gas by very high speed agitated combustion at maximum combustion pressure when isolation combustion is canceled.

4. Let's increase output and reduce Nox by combustion improved steam injection. Let's improve combustion and realize small size light weight with big output.

(4.1) (4.2) (FIG.23) When piston or rotor starts retreat from dead center at extreme Combustion of 4 cycle gasoline engine and rotary engine, combustion pressure and combustion temperature rapidly decrease and shift to the worst combustion condition. Because heating value necessary for generating steam is short and combustion gets worse when steam is injected, it is difficult for combustion chamber of gasoline engine and rotary engine to reduce NOx by steam injection.

(4.3) (FIG.25) (FIG.26) Combustion of reduced diameter main combustion chamber of energy conservation cycle engine is conducted at high pressure and high temperature for hours. All combustion period of existing gasoline engines is constant great approach isolation combustion such as 25 times, maximum combustion pressure keeps going up, and its heat load is very big. Therefore, because heat value necessary for generating steam can be obtained, Nox can be reduced greatly and thermal efficiency increases greatly by increasing thermal energy and output in the reduced diameter main combustion chamber as a combustion chamber of integrated engine of steam and internal combustion which uses a lot of steam injection.

If reduce diameter of reduced diameter main combustion chamber to 1/5, the weight can be lightened as 1/5 wall thickness. In addition, it is possible to reduce wall thickness to lighten the weight by making enlarged diameter combustion chamber a combustion chamber only for low pressure. By making combustion at cancellation of the second step isolation combustion as very high speed agitated combustion in enlarged diameter combustion chamber using big pressure difference, pollution reduction can be reinforced such as no unburnt gas.

Regardless of fuel type, at near dead center, difference of compressed ratio between reduced diameter main combustion chamber and enlarged diameter combustion chamber becomes maximum, and injection air speed from one way air passage with check valve becomes maximum. Agitated combustion amount reaches maximum speed at the most crucial time. Because constant great approach isolation agitated combustion time is greatly reduced, piston stroke S, function of combustion time, is reduced. Ratio of piston stroke S and enlarged diameter piston diameter D is normally S/D=1/2. Large engine exceeds S/D=1/5 and becomes a light weight big output energy conservation cycle engine of ultra short stroke engine. With a large size energy conservation cycle engine which adopts perfect elasticity collision opposed stroke, it is possible to reduce specific weight of large diesel engine for ships built by conventional technology down to 1/10 or less easily.

If you notice any faults on the above invention, please feel free to inform me.

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e-mail.tanigawa@mx1.tiki.ne.jp