Machine controlled beating in rotary piston (MPRBC)
Variable valve timing device fully controllable in phase and opening
Last edited by Remundo the 15 / 02 / 08, 18: 17, 2 edited once.
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Rotary distribution systems even have the possibility to disable 1, 2 or 3 4 combustion chambers at will 42A, 42B, 42C, 42D to avoid gas exchange or unwanted compression, leaving the valves respectively constantly closed or open.
This gives the engine great flexibility because its displacement becomes variable, by 25% stage of its total power in the case of a four-piston engine. 7A, 7B, 7C, 7D.
Lubrication or lubrication of the valves is possible to reduce friction and simultaneously increase the longevity and tightness of the device.
For the sake of simplification of the motor, the rotary distribution system could be removed for example by directly operating the rotary shutter 14. In this case, the engine would have lower adjustment possibilities, both at the intake and the exhaust. It is also possible to envisage a rotary distribution based on a single circular plate in rotation around the 40 axis, the holes of which would intermittently release the 61 intake and / or 62 exhaust ports of each 42 chamber as illustrated in FIG. . 18.
This gives the engine great flexibility because its displacement becomes variable, by 25% stage of its total power in the case of a four-piston engine. 7A, 7B, 7C, 7D.
Lubrication or lubrication of the valves is possible to reduce friction and simultaneously increase the longevity and tightness of the device.
For the sake of simplification of the motor, the rotary distribution system could be removed for example by directly operating the rotary shutter 14. In this case, the engine would have lower adjustment possibilities, both at the intake and the exhaust. It is also possible to envisage a rotary distribution based on a single circular plate in rotation around the 40 axis, the holes of which would intermittently release the 61 intake and / or 62 exhaust ports of each 42 chamber as illustrated in FIG. . 18.
Last edited by Remundo the 15 / 02 / 08, 18: 18, 1 edited once.
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Animation of the conversion of the alternating rotary motion to 90 ° of each piston (for 2 pairs of pistons) in continuous rotation on a double crank shaft via a deformable rhombic system
Last edited by Remundo the 15 / 02 / 08, 19: 19, 3 edited once.
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As illustrated in particular in FIGS. 7 and 8, the motion conversion mechanism defining the E4 stage essentially comprises four 9A eccentric members, 9B, 9C, 9D, two 21 vertical runners, 22, two 23 horizontal runners, 24, two 26 upper rods, 27, two 25 lower rods, 28, 36 guide grooves, 37, two 31 horizontal pushers, 32, two 33 vertical pushers, 34, two 44 cranks, 45 integral with the 30 output shaft and a 38 protection plate with an 39 hole through which the 30 output shaft passes.
The eccentric 9A, 9B, 9C, 9D are carried by the 47A, 47B, 47C, 47D shafts passing through the end plates 5, 8 and pivoting about their respective 50A piston axis, 50B, 50C, 50D.
The vertical sliders 21 and 22 are received in the guide groove 36 extending in a vertical direction 48 while the horizontal sliders 23 and 24 are received in the guide groove 37 extending in a horizontal direction 49. The guide grooves 36, 37 are made in an 29 support plate.
The 21,22,23,24 slides are rotatably mounted on the appropriate ends of the 25,26,27,28 rods, more specifically, the 26,27 upper rods respectively connect the 22 vertical slide to the 23 horizontal slide, 24, while the 25 lower link, 28 connect the 21 vertical slide respectively to the 23 rods. horizontal sliders 24, 25. The 26, 27, 28 and 48 rods are all of the same length and mounted symmetrically with respect to the 49 and XNUMX directions so that the intersections of their extensions define exactly one deformable rhombus.
The eccentric 9A, 9B, 9C, 9D are carried by the 47A, 47B, 47C, 47D shafts passing through the end plates 5, 8 and pivoting about their respective 50A piston axis, 50B, 50C, 50D.
The vertical sliders 21 and 22 are received in the guide groove 36 extending in a vertical direction 48 while the horizontal sliders 23 and 24 are received in the guide groove 37 extending in a horizontal direction 49. The guide grooves 36, 37 are made in an 29 support plate.
The 21,22,23,24 slides are rotatably mounted on the appropriate ends of the 25,26,27,28 rods, more specifically, the 26,27 upper rods respectively connect the 22 vertical slide to the 23 horizontal slide, 24, while the 25 lower link, 28 connect the 21 vertical slide respectively to the 23 rods. horizontal sliders 24, 25. The 26, 27, 28 and 48 rods are all of the same length and mounted symmetrically with respect to the 49 and XNUMX directions so that the intersections of their extensions define exactly one deformable rhombus.
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The 21, 22 vertical sliders move in opposite directions in the 48 vertical direction, while the 23, 24 horizontal sliders move in the opposite direction in the 49 horizontal direction. In addition, the slides (21 and 22) are the closest when the slides (23 and 24) are furthest away, and vice versa.
The center of each of the four 25, 26, 27, 28 rods is rotatably mounted on the eccentrics 9A, 9B, 9C, 9D, so that it recovers the reciprocating rotary motion at 90 ° from each end of the pivoting shafts 47A, 47B , 47C, 47D.
The horizontal 31, 32 pushbuttons are attached to the 21, 22 vertical slides, while the 33, 34 vertical pushers are attached to the 23, 24 horizontal slides.
Finally, each of the 31, 32, 33, 34 pushbuttons is based on the 44, 45, diametrically opposite pins of the 30 output shaft, which makes it possible to obtain a continuous rotation movement, as shown in Figures 8A, 8B , 8C, 8D. More precisely, each of the 44, 45 crankpins is pushed simultaneously by one of the 31 horizontal pushers, 32 and one of the 33 vertical pushers, 34.
The kinematics generated by this device has the advantage of quickly crossing the top dead center. Thus, we obtain:a reduction in the production of NOx pollutants at top dead center by reducing the dead time of the top dead center,
- a reduction in thermal leakage of the highly compressed gas, even burned partially or totally, therefore a better conservation of its energy
- a better restitution of the gas energy during a relaxation that lasts longer,
- better filling of the rooms during the admission which lasts longer,- in the context of operation of the motor as a pump, the continuity of the pumped fluid flow.
In order to ensure optimum lubrication of the motion conversion mechanism defining the E4 stage, it can be placed in an oil bath.
The center of each of the four 25, 26, 27, 28 rods is rotatably mounted on the eccentrics 9A, 9B, 9C, 9D, so that it recovers the reciprocating rotary motion at 90 ° from each end of the pivoting shafts 47A, 47B , 47C, 47D.
The horizontal 31, 32 pushbuttons are attached to the 21, 22 vertical slides, while the 33, 34 vertical pushers are attached to the 23, 24 horizontal slides.
Finally, each of the 31, 32, 33, 34 pushbuttons is based on the 44, 45, diametrically opposite pins of the 30 output shaft, which makes it possible to obtain a continuous rotation movement, as shown in Figures 8A, 8B , 8C, 8D. More precisely, each of the 44, 45 crankpins is pushed simultaneously by one of the 31 horizontal pushers, 32 and one of the 33 vertical pushers, 34.
The kinematics generated by this device has the advantage of quickly crossing the top dead center. Thus, we obtain:a reduction in the production of NOx pollutants at top dead center by reducing the dead time of the top dead center,
- a reduction in thermal leakage of the highly compressed gas, even burned partially or totally, therefore a better conservation of its energy
- a better restitution of the gas energy during a relaxation that lasts longer,
- better filling of the rooms during the admission which lasts longer,- in the context of operation of the motor as a pump, the continuity of the pumped fluid flow.
In order to ensure optimum lubrication of the motion conversion mechanism defining the E4 stage, it can be placed in an oil bath.
Last edited by Remundo the 15 / 02 / 08, 13: 05, 1 edited once.
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The main objective of this engine is to have maximum compactness. It should be noted that the volume of fresh gas sucked by this engine is proportional to the square of its characteristic dimension, which can be defined by twice the length of the rotary pistons, unlike traditional engines piston / rod / crank which aspire only volumes proportional to their characteristic dimension, which can be defined by the stroke of the piston.
In addition, all engine accessories, except injectors, have a reduced volume to a minimum. This gives the motor object of the invention an exceptional compactness.
At equal power, the compactness could be increased by an 3 factor compared to a piston / crank / crank / casing motor, and even by an 4 factor by removing the E1 stage, and even more by using a cam rotating central super-lobed.
As an extension of this high compactness, the volumes and masses of material required for the construction of such an engine would be much lower than those required by current techniques. Dimensioned for 100 Bar pressures, the machine object of the invention would use between 20 and 25 kg of steel of standard quality in the material per liter of displacement.
In addition, all engine accessories, except injectors, have a reduced volume to a minimum. This gives the motor object of the invention an exceptional compactness.
At equal power, the compactness could be increased by an 3 factor compared to a piston / crank / crank / casing motor, and even by an 4 factor by removing the E1 stage, and even more by using a cam rotating central super-lobed.
As an extension of this high compactness, the volumes and masses of material required for the construction of such an engine would be much lower than those required by current techniques. Dimensioned for 100 Bar pressures, the machine object of the invention would use between 20 and 25 kg of steel of standard quality in the material per liter of displacement.
Last edited by Remundo the 15 / 02 / 08, 13: 06, 1 edited once.
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As a result, this engine allows:
- a very significant reduction in manufacturing costs,
- a hybridization of vehicles: the space released can be occupied by a second non-thermal engine as well as by its energy storage device,
- the braking of vehicles by recovering their kinetic energy: space savings are then occupied by the recovery device,
- increased design freedom: the space savings make it possible to give comfort in the cockpit, to obtain greater steering angles, or even to motorize a vehicle by several small engines dedicated to either an axle or to each wheel (vehicle 4x4 without all-wheel drive, motorcycle 2x2 ...).
- an increase in power engines:
· Better filling on admission
· By a combustion favored by the vortices created during the compression,
· at equal volume, 3 power 4 times greater than that of a piston engine / connecting rod / crank.
This engine also provides various environmental benefits, such as:
- a reduction in vehicle pollution:· By installing more powerful gas pollution control devices thanks to the space saving provided by this engine,
· Using a non-polluting hybrid propulsion mode whenever necessary, especially in cities,
· By having better combustion in the combustion chambers,
· With fewer losses in the gearbox: the engine object of the invention produces a slow rotational movement, but at high torque at low speeds, particularly if using a highly multilobed central cam; this makes it possible to limit the reduction gears, which is ideal for towing a load,
· compatibility with all types of fuel, especially less polluting ones: biofuels (vegetable oils or alcohols), natural gas and especially hydrogen,
- the exploitation of the compression ratio adjustment and a kinematics driven by the chosen cam profile which opens the way to new types of combustion:
controlled thermo-ignition (CAI / HCCI) mode: controlled auto ignition / homogeneous charge compression ignition),
photo-ignition mode: radiation-induced combustion resulting from very high sudden temperatures obtained by sudden compression and higher compression ratios.
- a very significant reduction in manufacturing costs,
- a hybridization of vehicles: the space released can be occupied by a second non-thermal engine as well as by its energy storage device,
- the braking of vehicles by recovering their kinetic energy: space savings are then occupied by the recovery device,
- increased design freedom: the space savings make it possible to give comfort in the cockpit, to obtain greater steering angles, or even to motorize a vehicle by several small engines dedicated to either an axle or to each wheel (vehicle 4x4 without all-wheel drive, motorcycle 2x2 ...).
- an increase in power engines:
· Better filling on admission
· By a combustion favored by the vortices created during the compression,
· at equal volume, 3 power 4 times greater than that of a piston engine / connecting rod / crank.
This engine also provides various environmental benefits, such as:
- a reduction in vehicle pollution:· By installing more powerful gas pollution control devices thanks to the space saving provided by this engine,
· Using a non-polluting hybrid propulsion mode whenever necessary, especially in cities,
· By having better combustion in the combustion chambers,
· With fewer losses in the gearbox: the engine object of the invention produces a slow rotational movement, but at high torque at low speeds, particularly if using a highly multilobed central cam; this makes it possible to limit the reduction gears, which is ideal for towing a load,
· compatibility with all types of fuel, especially less polluting ones: biofuels (vegetable oils or alcohols), natural gas and especially hydrogen,
- the exploitation of the compression ratio adjustment and a kinematics driven by the chosen cam profile which opens the way to new types of combustion:
controlled thermo-ignition (CAI / HCCI) mode: controlled auto ignition / homogeneous charge compression ignition),
photo-ignition mode: radiation-induced combustion resulting from very high sudden temperatures obtained by sudden compression and higher compression ratios.
Last edited by Remundo the 15 / 02 / 08, 19: 22, 2 edited once.
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