WO1997033073A1 - Moteur a rotation continue - Google Patents

Moteur a rotation continue Download PDF

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Publication number
WO1997033073A1
WO1997033073A1 PCT/GB1997/000621 GB9700621W WO9733073A1 WO 1997033073 A1 WO1997033073 A1 WO 1997033073A1 GB 9700621 W GB9700621 W GB 9700621W WO 9733073 A1 WO9733073 A1 WO 9733073A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
piston
engine
weights
weight
Prior art date
Application number
PCT/GB1997/000621
Other languages
English (en)
Inventor
Edward Seal
Original Assignee
Edward Seal
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 Edward Seal filed Critical Edward Seal
Priority to IL12609297A priority Critical patent/IL126092A0/xx
Priority to AU21008/97A priority patent/AU734332B2/en
Priority to JP9531580A priority patent/JP2000506245A/ja
Priority to EP97906263A priority patent/EP0890017A1/fr
Publication of WO1997033073A1 publication Critical patent/WO1997033073A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C9/00—Oscillating-piston machines or engines
    • F01C9/002—Oscillating-piston machines or engines the piston oscillating around a fixed axis

Definitions

  • the present invention relates to engines, and in particular to a rotary inertia-recoil free-piston engine.
  • Engines in particular of the internal combustion variety, are well known and generally work to either a two or a four stroke principle.
  • 'stroke' refers to different operational stages of the engine, namely in a four stroke engine, an induction stroke, a compression stroke, a power stroke and an exhaust stroke.
  • a common principle of such engines is that the reciprocating action of a piston within a cylinder is converted via a connecting rod and a crank shaft arrangement into rotational movement of the crank shaft.
  • a number of cylinders are generally provided, each of which is fixed in position relative to the engine block, the power of the engine being taken as rotational movement of the crank shaft.
  • a single cylinder four stroke engine has a low degree of uniformity whereby rotation of the crank shaft is subject to considerable accelerations and decelerations during a cycle.
  • multi-cylinder engines are provided, in which the operation of the various cylinders is staggered so that the various cylinders do not develop the power stroke simultaneously but successively.
  • a rotary piston engine (Wankel) wherein a piston having a generally triangular shape with convex sides rotates within a cylinder housing having a generally oval shape and which is slightly constricted in its middle.
  • the edges of the rotating piston open and close ports in the cylinder walls so that the piston itself controls the breathing of the engine without the aid of valves.
  • the three enclosed spaces formed between the piston and the cylinder walls successively increase and decrease in size as the piston rotates. These variations in the spaces are used for drawing in the fuel and air mixture, for compressing the mixture, for combustion and discharging the burned gases.
  • Rotary piston engines suffer however from sealing problems between the three spaces as the rotating piston rotates.
  • an engine comprising:- a rotatably mounted piston casing; at least a pair of weights mounted for oscillatory movement within a casing; wherein a coupling means is provided between the weights to alternately urge in use each of weights in a first direction about the axis of rotation of the casing in response to a combustion force that drives the non-urged one of the pair of weights in a second direction that is opposite to the first direction, the piston casing itself being urged in the first direction.
  • the weights are coupled by way of respective lever arrangements connected by a connecting rod, whereby the movement of each weight corresponds to a linear movement of the connecting rod. In this way, undesirable forces that would oppose the rotation of the engine can be effectively dissipated.
  • the respective lever arrangements each comprise a rotatably mounted transmission arm having an engagement portion arranged to slidably engage its associated weight and a lever portion that extends from its respective rotation point from a side opposite to the engagement portion, the respective lever portions of the transmission arms being coupled by way of the connecting rod.
  • the transmission arms are urged to move by one of the weights or move one of the weights.
  • a rotational movement of one transmission arm causes an opposite rotational movement of the other transmission arm.
  • the transmission arms are arranged to rotatively reciprocate in association with movement of the weights.
  • an output shaft is coupled to the piston casing.
  • an engine comprising:- at least two cylinder/piston combinations extending substantially circumferentially relative to an axis of the engine; the pistons being coupled together such that they alternately urge each other to respective points of combustion in their respective cylinders, wherein in use the engine is driven by providing a reaction force between alternate piston and cylinder combinations.
  • a engine comprising:- a piston casing mounted for rotation about a casing axis; at least a pair of opposing weights disposed within the casing, each weight being mounted for rotation about an axis parallel to the casing axis; a coupling means providing a mechanical link between opposing weights whereby a movement by one linked weight in one direction about its rotation axis produces a movement of the other linked weight in an opposite direction about its axis of rotation; and means capable of applying, in alternation, a displacement between the casing and one weight of a pair in said one direction and a displacement between the casing and the other weight of a pair in said opposite direction.
  • the casing has a first pivot point means and a second pivot point means and wherein said mechanical link is connected to pivot about said first and second pivot point
  • Figure 2 shows a cross-sectional view through the engine of Figure 1 at a second position
  • Figure 3 shows in perspective a second embodiment of the present invention
  • Figure 4 shows an exploded view of the embodiment of Figure 3.
  • Figures 5A to 5C show operational views of the embodiment of Figures 3 and 4.
  • Figure 1 hence shows in cross-sectional view the internal parts of an engine 1 of a first embodiment of the present invention.
  • the engine includes a rotatably mounted piston casing 3.
  • the generally cylindrical piston casing houses a pair of weights in the form of pistons 4, 4' which are arranged to reciprocate circu ferentially.
  • the pistons 4, 4' are rotatably mounted about centre E via piston arm members 5, 5' .
  • Transmission or rocker arms 6, 6* are rotatably mounted about centres I, the centres being fixed in relation to the piston casing.
  • Each of the arms 6, 6' comprises an engagement portion arranged to slidingly engage a suitable surface on the piston arm members 5, 5'.
  • Centres I are generally diametrically opposed about the centre E.
  • the transmission arms 6, 6' are connected by way of a connecting rod 7, which is rotatably mounted at its ends to a portion of each transmission arm that extends from its respective centre I on the other side of the engagement portion.
  • the transmission arms are arranged to act generally as levers transferring the rotational movement of the piston arm members into a linear movement of the connecting rod.
  • the centres I act in this respect as fulcrum points.
  • Piston 4 is thus caused to move anti-clockwise within the piston cylinder towards the point B.
  • the connecting rod 7 is provided with a linear movement which in turn causes a rotational movement of transmission arm 6*.
  • the rotational movement of arm 6' results in the piston arm member 5• and thus piston 4' being urged to rotate about centre E in a clockwise direction from position D to position F.
  • piston 4' At point D, the piston 4' is at the end of its combustion stroke. The clockwise movement imparted to piston 4' will move it to its combustion point F. Thus, the power stroke of piston 4 causes piston 4' to move to its combustion point, in so doing going through its induction and compression strokes.
  • piston 4 once the piston 4' has reached the combustion point F, it is ready to undergo combustion, whereby it will be accelerated relative to the cylinder casing back towards point D. At the same time piston 4 will, by way of the transmission arms and piston arm members, be urged from point B back towards its combustion point A.
  • the piston casing gains an overall clockwise rotation, which can be taken from the engine via central shaft 10 fixed relative to the piston casing.
  • the engine (the piston casing) is thus driven in a clockwise direction as a consequence of the inertia transfer of energy from each 'heavy' piston to its respective 'light' cylinder. Negative forces that tend to oppose rotation of the engine can be dissipated in a linear, outward direction through centres I.
  • Figures 3 to 5 concern a second embodiment of the present invention.
  • the major difference between the embodiment of Figures 1 and 2 and that of Figures 3 to 5 is that the latter embodiment has two axially aligned piston sets 14, 14' received in respective piston casings 13.
  • each piston set comprises a pair of diametrically opposed piston heads 19 and 20.
  • the "top” piston heads are provided on a drive plate 21 which is fixed relative to output shaft 22.
  • the coupling means between the piston sets includes transmission arms 16, 16 » , shaft members 17 and 17' and connecting member 23.
  • Bearing members 24 ensure low friction rotation of the output shaft 22. Operation of the engine is very similar to that of the embodiment of Figures 1 and 2. The difference is that rather than a single piston undergoing combustion at any one time, in this embodiment pairs of piston heads from the same set undergo combustion together.
  • top piston heads 19 are about to undergo combustion.
  • piston set 14 On combustion, piston set 14 is hence driven in an anticlockwise direction as shown by arrow P.
  • the top casing at points A is at the same time urged in a clockwise direction, this clockwise movement being the general movement derivable from the engine via shaft 22.
  • the piston set is comparatively heavy and the piston casing is relatively light.
  • Piston set 14 is thus caused to move anti-clockwise within the piston casing so that the piston heads 19 move towards the points B.
  • the connecting rod 23 is provided with a linear movement which in turn causes a rotational movement of shaft 17' and transmission arm 16'.
  • the rotational movement of arm 16' results in piston set 14 ' being urged to rotate about centre E in a clockwise direction so that the piston heads 20 move to their combustion points.
  • piston heads 20 of piston set 14' have reached their combustion points, they are ready to undergo combustion, whereupon they will be accelerated anticlockwise relative to piston casing 13. At the same time piston set 14 will be urged clockwise from points B back towards combustion points A..
  • the engine works therefore through the principle of firing relatively heavy solid construction pistons in a combustion process.
  • This construction allows free heavy pistons to be the only combustion driven parts from one combustion cycle to the next.
  • the non-combusted piston set is effectively catching up within the piston casing to the combustion point of its respective piston cylinder.
  • pistons are relatively heavy, they can be made of stronger and stiffer materials. Such stronger pistons will enable the use of greater pressures so as to increase the relative volumetric potential of the engine. The pistons will also be more resilient against piston twist or slap.
  • the engine components optimally have aerodynamically formed lead edges so as to reduce drag.
  • the engine is free running.
  • the cylinder is arranged to rotate freely and for operation the engine does not require a fixed point from which to create drive. This greatly simplifies the engine and reduces the likelihood of failure due to wear.
  • the engine may be supplied with fuel/air and have exhaust products removed by any suitable method.
  • the fuel/air mixture may be provided and exhaust products may be removed by way of transfer ports provided in the cylinder casing.
  • the engine components may be made from any suitable materials, such as metals, metal alloys, ceramics, plastics etc. Conventional cooling systems may be incorporated into the engine as desired.
  • any suitable number may be used as required.
  • coupling means is shown as a lever arrangement, other arrangement may of course be used, for example gears and/or chain drive means.
  • the engine need not be limited to the field of internal combustion engines.
  • it could also be configured as a compressed air/bounce chamber flywheel engine.

Abstract

L'invention porte sur un moteur comportant: un carter (3) de piston conçu pour tourner autour de son axe; au moins une paire de poids ou pistons (4, 4') opposés montés dans le carter et tournant autour d'un axe parallèle à celui du carter; un moyen d'accouplement (6, 7, 6') assurant une liaison mécanique entre les poids opposés, de sorte que le déplacement d'un des poids lié dans un sens autour de son axe de rotation produise le déplacement en sens opposé de l'autre poids lié; des moyens capables de provoquer alternativement un déplacement entre le carter et l'un des poids d'une paire dans un sens, et un déplacement entre le carter et l'autre poids de la paire dans le sens opposé.
PCT/GB1997/000621 1996-03-07 1997-03-06 Moteur a rotation continue WO1997033073A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IL12609297A IL126092A0 (en) 1996-03-07 1997-03-06 Continuously rotating engine
AU21008/97A AU734332B2 (en) 1996-03-07 1997-03-06 Continuously rotating engine
JP9531580A JP2000506245A (ja) 1996-03-07 1997-03-06 連続回転エンジン
EP97906263A EP0890017A1 (fr) 1996-03-07 1997-03-06 Moteur a rotation continue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9604818.6 1996-03-07
GBGB9604818.6A GB9604818D0 (en) 1996-03-07 1996-03-07 Internal combustion engine

Publications (1)

Publication Number Publication Date
WO1997033073A1 true WO1997033073A1 (fr) 1997-09-12

Family

ID=10789985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/000621 WO1997033073A1 (fr) 1996-03-07 1997-03-06 Moteur a rotation continue

Country Status (7)

Country Link
EP (1) EP0890017A1 (fr)
JP (1) JP2000506245A (fr)
AU (1) AU734332B2 (fr)
CA (1) CA2248719A1 (fr)
GB (1) GB9604818D0 (fr)
IL (1) IL126092A0 (fr)
WO (1) WO1997033073A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778945A1 (fr) * 1998-05-25 1999-11-26 Alfred Lang Moteur circulaire a pistons oscillants
NL1025835C2 (nl) * 2004-03-26 2005-10-03 Leendert Johannes Meester Werkwijze alsmede verbrandingsmotor die is voorzien van een ringvormige holle stator, een in de stator verplaatsbare rotor, alsmede van ten minste twee in de stator verplaatsbare zuigers.
WO2008104569A2 (fr) * 2007-02-28 2008-09-04 Jung, Nadine Moteur à combustion interne à pistons oscillants
WO2010027778A3 (fr) * 2008-08-25 2010-08-26 Heinz-Gustav Reisser Moteur à combustion interne à piston rotatif
ITRM20090432A1 (it) * 2009-08-07 2011-02-08 Giovanni Delfini Motore a combustione interna.
ITBL20100003A1 (it) * 2010-02-03 2011-08-04 Ruggero Libralato Struttura di motore endotermico rotativo perfezionato, del tipo a doppio centro di rotazione
US8944015B2 (en) 2005-12-16 2015-02-03 Heinz-Gustav A. Reisser Rotary piston internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6895923B1 (en) * 2004-01-16 2005-05-24 Craig Jones Rotary and centrifugal driven internal combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408788A (fr) * 1909-11-09 1910-04-05 Frederick Beck Moteur à explosion alterno-rotatif
CH120330A (fr) * 1926-03-26 1927-05-16 Dap Motor Patent Ges M B H Moteur à cylindres rotatifs.
US3885532A (en) * 1973-11-08 1975-05-27 Albert Pike Rotary engine
US4664078A (en) * 1985-09-13 1987-05-12 Bender Friedrich K Continuously rotating internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408788A (fr) * 1909-11-09 1910-04-05 Frederick Beck Moteur à explosion alterno-rotatif
CH120330A (fr) * 1926-03-26 1927-05-16 Dap Motor Patent Ges M B H Moteur à cylindres rotatifs.
US3885532A (en) * 1973-11-08 1975-05-27 Albert Pike Rotary engine
US4664078A (en) * 1985-09-13 1987-05-12 Bender Friedrich K Continuously rotating internal combustion engine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778945A1 (fr) * 1998-05-25 1999-11-26 Alfred Lang Moteur circulaire a pistons oscillants
NL1025835C2 (nl) * 2004-03-26 2005-10-03 Leendert Johannes Meester Werkwijze alsmede verbrandingsmotor die is voorzien van een ringvormige holle stator, een in de stator verplaatsbare rotor, alsmede van ten minste twee in de stator verplaatsbare zuigers.
WO2005093216A1 (fr) * 2004-03-26 2005-10-06 Leendert Johannes Meester Procede et moteur a combustion interne comprenant un stator annulaire creux, un rotor mobile dans ledit stator et au moins deux pistons, mobiles dans le stator
US8944015B2 (en) 2005-12-16 2015-02-03 Heinz-Gustav A. Reisser Rotary piston internal combustion engine
US8944025B2 (en) 2005-12-16 2015-02-03 Heinz-Gustav A. Reisser Rotary piston internal combustion engine
WO2008104569A2 (fr) * 2007-02-28 2008-09-04 Jung, Nadine Moteur à combustion interne à pistons oscillants
WO2008104569A3 (fr) * 2007-02-28 2009-12-10 Jung, Nadine Moteur à combustion interne à pistons oscillants
WO2010027778A3 (fr) * 2008-08-25 2010-08-26 Heinz-Gustav Reisser Moteur à combustion interne à piston rotatif
ITRM20090432A1 (it) * 2009-08-07 2011-02-08 Giovanni Delfini Motore a combustione interna.
WO2011016072A2 (fr) 2009-08-07 2011-02-10 Giovanni Delfini Moteur à combustion interne
WO2011016072A3 (fr) * 2009-08-07 2011-11-24 Giovanni Delfini Moteur à combustion interne
ITBL20100003A1 (it) * 2010-02-03 2011-08-04 Ruggero Libralato Struttura di motore endotermico rotativo perfezionato, del tipo a doppio centro di rotazione

Also Published As

Publication number Publication date
CA2248719A1 (fr) 1997-09-12
IL126092A0 (en) 1999-05-09
AU734332B2 (en) 2001-06-14
JP2000506245A (ja) 2000-05-23
GB9604818D0 (en) 1996-05-08
EP0890017A1 (fr) 1999-01-13
AU2100897A (en) 1997-09-22

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