WO2022018627A9 - Mécanisme de va-et-vient - Google Patents

Mécanisme de va-et-vient Download PDF

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Publication number
WO2022018627A9
WO2022018627A9 PCT/IB2021/056531 IB2021056531W WO2022018627A9 WO 2022018627 A9 WO2022018627 A9 WO 2022018627A9 IB 2021056531 W IB2021056531 W IB 2021056531W WO 2022018627 A9 WO2022018627 A9 WO 2022018627A9
Authority
WO
WIPO (PCT)
Prior art keywords
cam
follower
circumferential surface
intake
exhaust
Prior art date
Application number
PCT/IB2021/056531
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English (en)
Other versions
WO2022018627A1 (fr
Inventor
Motahar AMINI KHOUZANI
Original Assignee
AMINI KHOUZANI, Mojtaba
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AMINI KHOUZANI, Mojtaba filed Critical AMINI KHOUZANI, Mojtaba
Priority to CA3186118A priority Critical patent/CA3186118A1/fr
Publication of WO2022018627A1 publication Critical patent/WO2022018627A1/fr
Publication of WO2022018627A9 publication Critical patent/WO2022018627A9/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/06—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces
    • F01B2009/061—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces by cams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present disclosure generally relates to internal combustion engines and a method for operating the same and more particularly relates to a reciprocating internal combustion engine.
  • the piston In the conventional four-stroke engine, for the purpose of conversion of fuel energy into mechanical energy, the piston carries out four separate strokes while turning the crankshaft. These four stokes including intake, compression, combustion (power), and exhaust. A stroke refers to the full travel of the piston along with the cylinder in either direction. In a four- stroke engine, an individual piston fires every 720 degrees during two crankshaft rotations.
  • One of the advantages of four- stroke engines is their better volumetric efficiency over the engine speed range. This refers to the ‘breathability’ of the engine or the extent to which the cylinder of an engine is completely filled by the incoming charge following an exhaust stroke. However, due to only one piston power stroke every 720° of crankshaft rotation, there is a lower engine power density.
  • an internal combustion engine with a configuration that improves the efficiency of the internal combustion engine during operation. Further, it may be desirable to provide an internal combustion engine with a configuration that provides more mechanical power from burning fossil fuels, which results in lower fuel consumption, smaller engines and higher efficiency, which can help reduce air pollution.
  • the present invention object is to overcome or diminish the problems of the prior types of the engine and by providing a new design and arrangement of all components in a compact structure that is easily manufactured and have a higher performance regarding its technology, power, economic as well as the lower fuel consumption.
  • the mechanism may include a drive shaft instead of a crankshaft and a rotor which may comprise a first cam and a second cam, both fixedly mounted on the drive shaft, and each has an outward circumferential surface.
  • the first cam may have a groove on an inner surface which is formed with a predetermined cam profile, while the second cam may comprise a recess, which could form an inward circumferential surface.
  • the predetermined cam profile of the groove of the first cam may comprise a first and a second nose, while the second nose is located in a 180-degree phase shift from the first nose.
  • the reciprocating mechanism can comprise a first intake valve and a second intake valve that respectively may include a first intake follower end and a second intake follower end which could engage with an outward circumferential surface of the first cam.
  • this arrangement may reciprocate responsively to a relative motion between each of the first intake follower end of the second intake follow end with the outward circumferential surface, crankshaft.
  • each of the first and second intake valves could be located in a first and second cylinder block, respectively.
  • the first and the second piston could be slidably fitted.
  • the first cylinder block and the second cylinder block are being arranged in a V-configuration.
  • the reciprocating mechanism may include a first and a second piston which both may respectively fitted slidably into the first and second cylinder, and each of the first and second pistons could be linked pivotally to one end of a first and a second connecting rod.
  • the other ends of the first and second connecting rods can be linked to the first and second followers.
  • the first and second followers may be configured to follow the predetermined cam profile of the groove of the first cam and the inward circumferential surface of the second cam. Due to rotation of the drive shaft, the first and second piston could respectively reciprocate responsive to a motion of the first and second follower.
  • FIG. 1 illustrates a perspective exploded view of an internal combustion engine works with a reciprocating mechanism, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 2 illustrates a reciprocating mechanism, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 3A illustrate exploded views of a rotor, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 3B illustrate exploded views of a rotor, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 4A illustrate sectional views of a reciprocating mechanism, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 4B illustrate sectional views of a reciprocating mechanism, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 5 illustrates an exploded view of a cylinder block, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 6A illustrate a side view of a cylinder block, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 6B illustrate a cross-sectional view of a cylinder block, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 6C illustrate a cross-sectional view of a cylinder block, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 7A illustrate a top view of a cylinder block, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 7B illustrate a cross-sectional view of a cylinder block, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 8 illustrates a reciprocating mechanism with a V-shape configuration, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 9A illustrates an exemplary cam profile for a groove of a cam, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 9B illustrates an exemplary cam profile for an outward surface of a cam, consistent with one or more exemplary embodiments of the present disclosure
  • FIG. 10A illustrate an embodiments of an internal combustion engine, with a threaded hollow shaft
  • FIG. 10B illustrate an embodiment of an internal combustion engine, respectively, with a fan
  • FIG. 10C illustrate an embodiment of an internal combustion engine, with an electrical generator
  • FIG. 10D illustrate an embodiment of an internal combustion engine with a planetary gear system.
  • FIG. 1 illustrates a perspective exploded view of an internal combustion engine 100 works with a reciprocating mechanism 200, which is illustrated in Fig. 2, consistent with one or more exemplary embodiments of the present disclosure.
  • a reciprocating mechanism 200 may include a case 105 fixed on a base 116 via a plurality of pins 117.
  • the reciprocating mechanism 200 may include a drive shaft 101 that may include a first end 214 and a second end 115.
  • the first end 214 and the second end 115 can be supported in a first bearing hole 106 and a second bearing hole 107, respectively, via a first bearing means 108 and a second bearing means 109.
  • the first bearing means 108, and the second bearing means can be any type of bearing such as ball bearing and roller bearing.
  • the reciprocating mechanism 200 may include a first cylinder block 103 that may be integrally connected to the case 105 (as shown in FIG.l).
  • the first cylinder block 103 may be projected from the case 105 along a first axis 213, as shown in FIG. 2.
  • the first cylinder block 103 may include a first cylinder 110 that may be located within a first cylinder hole 603.
  • a longitudinal axis 612 of the first cylinder may be parallel to the first axis 213.
  • FIG. 2 illustrates a reciprocating mechanism 200, consistent with one or more exemplary embodiments of the present disclosure.
  • FIG 3A and FIG.3B illustrate exploded views of a rotor 201, consistent with one or more exemplary embodiments of the present disclosure.
  • FIGs. 4A-4B illustrate sectional views of a reciprocating mechanism 200, consistent with one or more exemplary embodiments of the present disclosure.
  • the reciprocating mechanism 200 may include a rotor 201 comprising a first cam 102 and a second cam 114.
  • the first cam 102 which can be fixedly mounted on the drive shaft 101, includes a groove 301 on its inner surface 305.
  • the groove 301 has formed in a manner to divide the first cam 102 into an inner portion 302, a grooved portion 304, and an outer portion 303.
  • Each of the outer portion 303 and groove 301 may include an outward circumferential surface 202, 306, while groove 301 have an inward circumferential surface 312.
  • FIG. 1 as shown in FIG.
  • the groove 301 is formed with a predetermined cam profile 403.
  • the second cam 114 which may be fixedly mounted on the drive shaft 101 and includes an outward circumferential surface 203, can further have a recess 307 on its inner surface 310.
  • the recess 307 has been formed in a manner to divide the second cam 114 into an inner portion 308 and an outer portion 309.
  • the inner portion 308 can include an inward circumferential surface 311, as shown in FIG. 4A and FIG. 4B, formed with a predetermined cam profile 404 that may correspond or same to the cam profile 403 of groove 301.
  • the reciprocating mechanism 200 may include a first connecting rod 208 that may have a first end 503 and a second end 504.
  • the reciprocating mechanism 200 may further include a first piston 207 that may be pivotally linked to the first end 503 of the first connecting rod 208 via a piston pin 526, and the first piston 207 may be slidably fitted into the first cylinder 110, as shown in FIG. 1.
  • the piston pin 526 may provide a bearing for the first connecting rod 208 to pivot upon as the first piston 207 moves.
  • the reciprocating mechanism 200 may include a first follower 406 that could pivotally be linked to the second end 504 of the first connecting rod 208, as shown in FIG. 4B.
  • the first follower 406 may engage with the outward circumferential surface 306 of groove 301 of the first cam 102, the inward circumferential surface 312 of a groove 301 of the first cam 102, and the inward circumferential surface 311 of the inner portion 308 of the second cam 114.
  • the first follower 406 may be clasped between the groove 301 of the first cam 102 and the inward circumferential surface 311 of the second cam 114 and configured to follow the predetermined cam profile 403 of groove 301 of the first cam 102 and the predetermined cam profile 404 of the inward circumferential surface 311 of the second cam 114.
  • reciprocation of the first piston 207 may be changed into reciprocating motion of the first connecting rod 208 via the piston pin 526.
  • the reciprocating motion of the first connecting rod 208 may be changed into rotation of the drive shaft 101 by means of the connection of the first follower 406 and groove 301.
  • rotation of the drive shaft 101 may be changed into reciprocating motion of the first connecting rod 208, which in turn may be changed into reciprocation of the first piston 207.
  • the entire working cycle of the internal combustion engine 100 such as the number of times for generating the power for each rotation, the volume of the first cylinder 110 at the initial and finished times of each of the strokes (intake, compression, combustion, and exhaust), the acceleration, the speed of the first piston 207 at any time of the cycle may be completely determined by the predetermined cam profile 403 of groove 301 of the first cam 102 and the predetermined cam profile 404 of the inward circumferential surface 311 of the second cam 114.
  • the reciprocating mechanism 200 may further include a first intake valve 205 and a first exhaust valve 206 that may be placed through a first intake guide 702 or a first exhaust guide 701 shown in Fig. 7A.
  • the first intake guide 702 or the first exhaust guide 701 may be located through the first cylinder block 103 that a longitudinal axis 606, 607, as shown in FIG. 6, of each of the first intake guide 702 or the first exhaust guide 701 may be parallel to the first axis 213.
  • the first cylinder block 103 may include a first intake passage 601 or a first exhaust passage 602 that may be configured to being closed responsive to a reciprocating motion of the first intake valve 205 or the first exhaust valve 206.
  • the first intake valve 601 may be configured to be closed responsive to a reciprocating motion of the first intake valve 205 or the first exhaust valve 206.
  • the first exhaust valve 206 may include a first intake follower end 502 or a first exhaust follower end 407 that may engage with the outward circumferential surface 202 of the first cam 102 or the outward circumferential surface 203 of the second cam 114.
  • the first intake valve 205 or the first exhaust valve 206 may reciprocate along with the first intake guide 702 or the first exhaust guide 701 responsive to a relative motion between the first intake follower end 502 and the outward circumferential surface 202 of the first cam 102 or a relative motion between the first exhaust follower end 407 and the outward circumferential surface 203 of the second cam 114 due to rotation of the drive shaft 101.
  • each of the first intake valve 205 or the first exhaust valve 206 may be an intake valve or an exhaust valve of an internal combustion engine 100.
  • the opening time and closing time of each of the first intake and exhaust passages may be determined by cam profile 401, 405 of the first cam 102 and the second cam 114.
  • an intake or an exhaust valve of an internal combustion engine 100 may be controlled without using a camshaft mechanism in conventional engines, and the waste of the energy may reduce.
  • the first intake follower end 502 or the first exhaust follower end 407 can be any type of follower such as flat follower or roller follower.
  • the first cylinder block 103 may further include a fixed intake retainer 610 or a fixed exhaust retainer 703 that may be located under the first intake guide 702 or under the first exhaust guide 701.
  • the first intake valve 205 or the first exhaust valve 206 may further include an intake retainer 611 or an exhaust retainer 705.
  • the reciprocating mechanism 200 may further include an intake spring 501 or an exhaust spring 204 that may engage with the intake retainer 611 and the fixed intake retainer 610 or the exhaust retainer 705 and the fixed exhaust retainer 703 that may push the first intake valve 205 or the first exhaust valve 206 toward the outward circumferential surface 202, 203 of the first cam 102 or the second cam 114.
  • the first intake valve 205 or the first exhaust valve 206 may always be in contact with the first cam 102 and the second cam 114.
  • the reciprocating mechanism 200 may further include a connecting rod guide 210 that may include a first supporting shaft 520, that may be supported in a hole 604 within the first cylinder block 103, a second supporting shaft 519 that may be supported in a hole 605 within the first cylinder block 103, a first rolling guide 521, and a second rolling guide 522 that may be respectively mounted on the first supporting shaft 520 and the second supporting shaft 519.
  • the first rolling guide 521 and the second rolling guide 522 may be any type of rolling means such as ball bearing or roller bearing.
  • a longitudinal axis 608, 609 of each of the first supporting shaft 520 or the second supporting shaft 519 may be perpendicular to the first axis 213, and the first connecting rod 208 may be placed between the first supporting shaft 520 and the second supporting shaft 519.
  • the first rolling guide 521 and the second rolling guide 522 may be configured to roll on the first connecting rod 208.
  • the connecting rod guide 210 may allow the connecting rod 208 to only move in the same direction as the first piston 207 travels.
  • each of the first intake follower end 502 or the first exhaust follower end 507 may further include a first roller 505 or a second roller 507 that may be linked to the first intake follower end 502 or the first exhaust follower end 507 via a first pin 506 or a second pin 523.
  • the first roller 505 or the second roller 507 may be any type of rolling means such as ball bearing or roller bearing.
  • the first roller 505 or the second roller 507 may be configured to roll on the outward circumferential surface 202 of the first cam 102 or the outward circumferential surface 203 of the second cam 114.
  • rotation of the drive shaft 101 may be changed into a reciprocating motion of the first intake valve 205 or the first exhaust valve 206.
  • each of the first intake valve 205 or the first exhaust valve 206 may include a pair of stems 515, 516, 517, 518 that may be connected to a pair of heads 511, 512, 513, 514 in which each pair of the stems 515, 516, 517, 518 may be connected to one of the first intake follower end 502 or the first exhaust follower end 407.
  • each intake passage or exhaust passage may be connected with two valves, and such a mechanism may improve and increase the intake flow or the exhaust flow to the internal combustion engine 100.
  • the first follower 406 may include a first follower roller 508 that may roll between the groove 301 of the first cam 102 and a second follower roller 509 rolling on the inward circumferential surface 311 of the second cam 114.
  • the first follower roller 508 and the second follower roller 509 may be linked to the first follower roller 509 via a follower pin 510.
  • the first follower roller 508 and the second follower roller 509 may be any type of rolling means such as a ball bearing or a roller bearing.
  • the reciprocating mechanism 200 may further include a second cylinder block 104 that may integrally be connected to the case 105 along a second axis 801 that the second axis 801 that may be different from the first axis 213.
  • the second cylinder block 104 may be similar to the first cylinder block 103 and may be arranged in a V-configuration 811 with respect to the first cylinder block 103.
  • the second cylinder block 104 may include a second cylinder 111 that may be located through the second cylinder block 104, a second piston 804 that may be slidably fitted into the second cylinder 111.
  • a second connecting rod 806 comprising a first end 809 and a second end 810, and a second intake valve 803 or a second exhaust valve 802 that may be placed within the second cylinder block 104 and may include a second intake follower end 807 or a second exhaust follower end 808.
  • the second piston 804 may be pivotally linked to the first end 809 of the second connecting rod 806, similar to the first cylinder block 103, and a second follower 805 may be pivotally linked to the second end 810 of the second connecting rod 806.
  • the second follower 805 may engage with the groove 301 of the first cam 102 and the inward circumferential surface 311 of the second cam 114, similar to the first cylinder block 103.
  • the second follower 805 may be configured to follow the predetermined cam profile 403 of groove 301 of the first cam 102 and the predetermined cam profile 404 of the inward circumferential surface 311 of the second cam 114.
  • the second piston 804 may reciprocate responsive to a reciprocating motion of the second connecting rod 806 due to rotation of the drive shaft 101.
  • the second intake follower end 807 or the second exhaust follower end 808 may engage with the outward circumferential surface 202 of the first cam 102 or the outward circumferential surface 203 of the second cam 114.
  • the second intake valve 803 or the second exhaust valve 802 may reciprocate responsive to a relative motion between the second intake follower end 807 and the outward circumferential surface 202 of the first cam 102 or a relative motion between the second exhaust follower end 808 and the outward circumferential surface 203 of the second cam 114 due to rotation of the drive shaft 101.
  • the second cylinder block 104 may further include a second intake passage 112 or a second exhaust passage 113 that may be configured to being closed responsive to a reciprocating motion of the second intake valve 803 or the second exhaust valve 802.
  • the first cylinder block 103 may be located in a 90-degree phase shift with respect to the second cylinder block 104.
  • each of the first cylinders blocks and the second cylinder block 103, 104 may be a cylinder bank that may be in connection with a plurality of rotors that each rotor may have a 180-degree shift with respect to its anterior or posterior rotor.
  • the predetermined cam profile 403 of groove 301 may include a first nose 908 and a second nose 909 that may be located in a 180-degree phase shift from the first nose 908, as shown in FIG. 9A.
  • the four strokes may be completed.
  • the predetermined cam profile 403, 404 may include a first nose 908 and a second nose 909. The second nose 909 may be located in a 180-degree phase shift from the first nose 908 on the cam profile 403, 404.
  • the four strokes may be completed.
  • each of the first or the second followers 406, 805 is located on the first nose 908, each of the first or the second pistons 207, 804 is located on a top dead center.
  • the first or the second pistons 207, 804 may reach a bottom dead center.
  • the first or the second followers 406, 805 may follow the dead intake portion 911 of the cam profile 403, 404 and stay on a bottom dead center.
  • the first or the second followers 406, 805 may follow the compression portion 912 of the cam profile 403, 404, and the first or the second pistons 207, 804 may reach the top dead center again on the second nose 909.
  • the first or the second followers 406, 805 may follow the intake portion 910 of the cam profile 403, 404 and an intake valve may remain in an open position.
  • the intake time of an internal combustion engine 100 may be longer than the conventional engines and may result in a better operation of the engine.
  • each outward circumferential surface 203, 202 of the second cam and first cam 114, 102 may include a predetermined cam profile 401, 405 that may include a first arc 903 that may have a first radius 904 and a second arc 902 that may have a second radius 905.
  • the first radius 904 may be different from the second radius 905, and the second arc 902 may be connected with a first ramp 906 and a second ramp 907 to the first arc 903.
  • each of the valve followers may be positioned in an open or closed position when each of the valve followers follows the arc with a smaller and larger radius.
  • FIGs. 10A-10D illustrate different combination embodiments of an internal combustion engine 100, respectively, with a hollow shaft 1001 comprising a spiral thread 1002, a fan 1004, an electrical generator 1005, and a planetary gear system 1008.
  • the drive shaft 101 may be any type of shaft such as a solid shaft or a hollow shaft 1001, as shown in FIG. 10A.
  • the internal combustion engine 100 may include a spiral thread 1002 through an inner surface 1003 of the hollow shaft 1001 for pumping fluids.
  • the internal combustion engine 100 may further include a fan 1004 that connected to the first end 214 or the second end 115 of the hollow shaft 1001 for fluid transferring.
  • the internal combustion engine 100 may further include an electrical generator 1005 that may include a generator rotor 1007 that may be connected to the inner surface 1003 of the hollow shaft 1001 and a generator stator 1006 that may be placed along with a longitudinal axis 211 of the hollow shaft 1001.
  • an electrical generator 1005 may include a generator rotor 1007 that may be connected to the inner surface 1003 of the hollow shaft 1001 and a generator stator 1006 that may be placed along with a longitudinal axis 211 of the hollow shaft 1001.
  • the internal combustion engine 100 may further include a planetary gear system 1008 that may be connected to the first end 214 or second end 115 of the hollow shaft 1001 for the power transmission.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)

Abstract

La divulgation porte sur un mécanisme de va-et-vient destiné à un moteur à combustion interne. Le mécanisme de va-et-vient peut comprendre un arbre d'entraînement et un rotor qui peut comprendre une première came rainurée et une seconde came dans laquelle est ménagé un évidement. Le mécanisme de va-et-vient peut comprendre un piston qui est relié de manière pivotante à une tige de liaison. La tige de liaison peut être reliée pivotante à un suiveur conçu pour suivre le profil de came de la rainure de la première came et la surface circonférentielle intérieure de la seconde came. Le mécanisme de va-et-vient peut comprendre une soupape conçue pour suivre le profil de came d'une surface circonférentielle extérieure de la première ou de la seconde came. Pendant que l'arbre d'entraînement tourne, le piston et la soupape effectuent un mouvement de va-et-vient en réponse à un mouvement relatif entre le suiveur et la soupape, respectivement, avec la rainure de la première came et la surface circonférentielle extérieure soit de la première came, soit de la seconde came.
PCT/IB2021/056531 2020-07-20 2021-07-20 Mécanisme de va-et-vient WO2022018627A1 (fr)

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Application Number Priority Date Filing Date Title
CA3186118A CA3186118A1 (fr) 2020-07-20 2021-07-20 Mecanisme de va-et-vient

Applications Claiming Priority (2)

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IR13993003790 2020-07-20
IR139950140003003790 2020-07-20

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WO2022018627A1 WO2022018627A1 (fr) 2022-01-27
WO2022018627A9 true WO2022018627A9 (fr) 2022-03-24

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Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1648780A (en) * 1926-11-19 1927-11-08 Nuesell Gerard Internal-combustion engine
US11261946B2 (en) * 2016-04-08 2022-03-01 James L. O'Neill Asymmetric cam transmission with coaxial counter rotating shafts

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WO2022018627A1 (fr) 2022-01-27

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