Classifications

• • 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
  • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
  • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
  • F01B13/045—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder with cylinder axes arranged substantially tangentially to a circle centred on main shaft axis
• • 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
• • 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
  • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
  • F02B75/18—Multi-cylinder engines
  • F02B2075/1804—Number of cylinders
  • F02B2075/1816—Number of cylinders four
• • 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
  • F02B57/00—Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons
  • F02B57/08—Engines with star-shaped cylinder arrangements

Definitions

• Figure 1 is an exploded longitudinal sectional view of the rotary engine of the present invention
• Figure 2 is a vertical cross sectional view through the rotary engine of Figure 1 in an assembled condition
• Figure 3 is a view similar to Figure 2, illust ⁇ rating a somewhat modified first alternative form of the rotar .engine
• Figure 4 is a view similar to Figure 1;
• Figure 5 is a view of an alternative embodiment of the invention.
• Figure 6 is a view of an alternative embodiment of the invention.
• Figure 7 is a view of an alternative embodiment of the invention
• Figure 8 is a view of an alternative embodiment of the invention
• O PI Figure 9 is a view of an alternative embodiment of the invention. 4
• Figure 10 is a view of an alternative embodiment of the invention.
• Figure 11 is a view of an alternative embodiment of the invention.
• a rotary engine generally designated by the numeral 12. It is composed of a stator indicated by the numeral 14.
• the stator defines an inner chamber 16 and an outer annular chamber 18.
• the stator has a dual wall 20 which defines the annular chamber 18 about the inner chamber 16, the latter being bounded by the dual wall 20.
• the dual wall on one side is spanned by a first disc portion 22.
• a second disc 24, spaced from the first disc, is removably attached to close the stator. It is secured by bolts 26 and 28 receivable in the holes 30 and 32 and the recesses 34 and 36, the same being threaded to accommodate this struc ⁇ ture.
• each of the discs 22 and 24 has a central opening 36 and 38 which are aligned; and each preferably includes a laterally extending bushing or nose 40 and 42 to receive the rotatable shaft 46 with bearing means 50 and -52 providing for the rotation of the shaft relative to the stator.
• a rotor 60 is provided, the " same being sized for rotation within the chamber 16 with suit ⁇ able means being provided to key the rotor for rota ⁇ tion with the shaft, such as that designated by the numeral 62.
• annular or dual wall 20 of the stator includes a radial seat structure 70 which has a threaded bore to seat a spark plug such as that designated by the numeral 72
• an exhaust port means which is preferably of a beehive construction and designated by the numeral 76, are illustrated and arranged at about 180 degrees displacement from the aforementioned spark plug seat, and preferably slightly more than 180 degrees.
• the exhaust port openings which are designated by the numeral 76 may comprise a plurality of pathways leading to a manifold 78 to conduct the exhaust gases - to a remote location.
• Inlet port means 80 preferably comprising a plurality of relatively closely adjacent but angularly spaced openings, such as 82, 84 and 86 in a duct work structure 88 are provided, the same being closely adjacent but angularly spaced from the exhaust ports designed, generally, by the numeral 76.
• the rotor 60 it is seen comprises a body having a generally cylindrical surface 90 and internal structure defining four cylindrical recesses, 92, 94, 96 and 98. Each of these cylindrical recesses is sized to receive a piston in slidable mating relation, as will be explained more fully hereinafter; and each are eguiangularly spaced from one another, so that the openings are 90 degrees with respect to one another.
• each recess is characterized by a centerline which traces a cord of-the rotor config ⁇ uration.
• the chords defined by the cylindrical recesses when extended as seen in elevation in Figure 2 define a square, the diagonals of which are slightly less than the radius of the cylindrical rotor surface 90, that is, the entrance mouth of each cylinder is slightly recessed relative to the cylindrical rotor surface 90. This defines shoulders with respect to each which will be referred to more fully hereinafter but at this juncture, one of which is designated by the numeral 100 for conven ⁇ ient reference hereinafter.
• each piston e.g., 92
• a piston, such as 110, is provided in each cylindrical recess, each piston having a head such as 112 and a stem such as 114, the stem being pivotally connected as at 116 to the head for articulating movement of the head relative to the stem.
• each of the pistons is provided with sealing rings 117.
• the pistons are sized for recip- rocable movement within their associated cylindrical recess and it will be seen that the outer or exterior end of the head of each piston comprises an inclined plane 120, the heads of each of. the pistons being inclined at a common angle and each are oriented with respect to one another similarly.
• Each of the pistons is in 90 degree relation with respect to one another, that is, four cylinders and four associated pistons are eguiangularly spaced with respect to one another about the rotor.
• the rotor seen in exploded relation in Figure 1 it is seen to be composed of a closed main face 128 and a removable disc-shaped face 130, the-latter being secured to the rotor by means of screws 132 receivable within the recesses 134 and 136.
• the removable disc 130 is provided with an enlarged central opening 138.
• a cam track lever guide of generally circular form and designated by the numeral 140 is sized to fit within the opening 138 and this cam track lever guide is fixed as at 142 to the disc 24. It will be seen that this lever guide has an opening therethrough 144 aligned with a corresponding opening 146 in the disc 24 for introducing oil into .the interior of the rotor 60.
• lever guide track On the inner face of the cam track lever guide, which is fixed to the stator, there is provided a lever guide track generally designated by the numeral 160 which has a generally semi-circular portion 162 and an undulating portion 164 which has spaced convex portions 166 and 168 and an intermediate concave portion 170.
• each of the levers such as that designated by the numeral 200 has a first end zone 202 and a second end zone 204, with the end zones of each being in angular relation to one another defining and elbow zone 206 of each. It is seen that each of the levers is of common configu ⁇ ration and the first end zone of each lever is pivot ⁇ ally connected as at 212 to the outer end of one of the pistons.
• each of the levers is in engagement with the cam ' track or lever guide in 90 degree relation with respect to one another.
• Each of the lever guides preferably is composed of a web 226 with outwardly projecting channel or track defining surfaces such as 228.
• Each of the webs at about their respective elbow zones, that is the zone between the first end zone and the second end zone of each, is pivotally connected to the stator as at 240.
• seal means are provided in the rotor in the recessed portion previously referred to and desig ⁇ nated by the numeral 100, and these seal means are designated by the numeral 101 and comprise annular members with an inner face and having an opening 103 which is preferably beveled as at 105. ' This defines a valve seat.
• the valve seat accommodates a valve 107 which is pivotally connected to the rotor as at j 109 and normally urged into seated relation with the surfaces 111 and 113 in closing relation of the opening 103.
• this device comprises a circular block with cylinders and
• the rotating block is of circular shape and has in its interior a suitable number " of cylin- Q ders, preferably four, in the preferred embodiment, distributed according to the particular construction, such as one cylinder at zero degees, a second cylin ⁇ der at 90 degrees, a third cylinder at 180 degrees, and a fourth cylinder at 270 degrees.
• the rotating block has a central shaft supported by suitable bearings which are within the device; and the rotating block has an oil reservoir means for providing lubrication within the rotor.
• the pistons are activated by different mechan ⁇ isms in the first two embodiments.illustrated, that of Figures 1-2, and that of Figure 3. Generally speaking, however, in each, similar structure is employed for a similarity of operations and the description with respect to common subject matter is not repeated.
• the piston stem such as 404 generally, is provided with a first outer portion 406 and a second inner portion 408 which are interconnected to one another at a pivot joint 410, comprising an elbow. This elbow is connected through a link or lever 412 to the cam track and captivated as designated by the numeral 414.
• the lever guide is a channel made in the shape of a cam lever guide on a steel web with a variable width diameter and•is attached to the cover of the device.
• a rotary engine in a view similar to Figure 1, which engine is designated by the numeral 312. It includes a stator 314 with an inner chamber 316 and an outer annular chamber 318 which are defined by the dual wall 320. It also includes a rotor 360 and and the disk-shaped stator plate 324 secured as by the bolts 326. As seen in Figure- 5, it will be noted that there are two spark plugs provided 372 and 373 in angularly spaced holes 370 and 371. Preferably a plurality of dimples such as 300 and 301 arranged in a pattern are provided in the rotor confronting surface of the structure of the dual wall which surrounds the hole and faces the rotor.
• annular rotor recesses about the cylinders such as the recess 401, it is seen that it is provided with an annular seal 402 and in the mouth of each cylindrical recess a cone defining structure 403 is secured to the rotor as by the screws 405 defining a cone-shaped mouth 407 expanding or opening into the piston similajr structure, which is generally similar to that described above.
• the face of the piston is provided with a recess 411 f for the valve 409 to seat, which valve is pivotally c connected to the rotor as at 410 and it is spring urged as by the spring 411, of the leaf-type, into a normally closed position.
• the second spark plug is .for utilizing remaining gases effectively.
• each piston and cylinder such as that designated by the numeral 501 generally and which defines a housing having a surface such as 503 confronting the inner end of each cylindrical recess
• the housing or structure 501 defines a chamber 515 and 517 so that in response to the movement of the piston and tracking, changes in the pressure within the unit are utilized to cause a balancing of the operation of the device and transfer of power to the rotor.
• FIG. 7 there is shown a somewhat modified device.
• the follower is spring-urged into engagement at all times with the cam surface by means of the spring 605 coiled about the * stem of each piston, such as that designated by the numeral 607.
• Plates 609 and 610 are utilized as bushings on the stem so that the spring ends are in bearing relation at all times.
• each of the levers such as that designated by the numeral 701
• a cam follower such as 703 on each is at all times in engagement with the surface of the cam 705 by means of springs such as 707 exerting pressure at all times to maintain a cam track following relation ⁇ ship.
• springs such as 707 exerting pressure at all times to maintain a cam track following relation ⁇ ship.
• One end of each spring bears against the cylindrical recess defining structure and the other end bears against the cam follower 703 end of each lever.
• an articulated arrange ⁇ ment is shown analagous to the device shown in Figure 3; however, in this embodiment, a spring 806 with one end fixed as at 807 is connected as at 808 to the lever mechanism so that the cam follower 809 is at all times urged into engagement with the surface of the cam 810 and a stop means 811 is provided on the device to limit elbow type movement as illustrated in the drawings.
• this arrangement may be modified further in that a cam fo. ⁇ lower 910 is pro ⁇ vided in a track 911 is captivatingly secured into tracking relationship in a fashion somewhat similar to the previously described structure in Figure 3 with the exception that the segment 912 is curved as shown.
• the embodiment shown in Figure 11 illustrates hat the invention may include a suitable number of pistons, such as three. Also, in this arrangement, the lever segments 952 and 954 are pivotally connec ⁇ ted at an elbow 955 and the cam follower 956 is engaged in the track 957 as shown.

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• 1981
  • 1981-12-21 WO PCT/US1981/001735 patent/WO1983001091A1/en unknown
  • 1981-12-21 EP EP19820900488 patent/EP0089955A1/de not_active Withdrawn

Non-Patent Citations (1)

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