CA1309300C - Rotating-reciprocating engine/machine - Google Patents
Rotating-reciprocating engine/machineInfo
- Publication number
- CA1309300C CA1309300C CA000615727A CA615727A CA1309300C CA 1309300 C CA1309300 C CA 1309300C CA 000615727 A CA000615727 A CA 000615727A CA 615727 A CA615727 A CA 615727A CA 1309300 C CA1309300 C CA 1309300C
- Authority
- CA
- Canada
- Prior art keywords
- piston
- bearing
- cylinder
- axis
- hollow shaft
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Hydraulic Motors (AREA)
Abstract
ROTATING-RECIPROCATING PISTON ENGINE/MACHINE
Abstract This invention concerns mechanical devices for creating the rotating and at the same time reciprocating piston motion for use in piston machines or piston engines.
They are simple, compact and also usable for high performance. Some versions combine an electomotor or electric generator with the mechanical device in order to produce the motion of the piston by electric energy or to produce electric energy by the motion of the piston.
Another version uses a rotating part of this mechanical device for the transmission of the power to the outside of the machine or vice versa.
Abstract This invention concerns mechanical devices for creating the rotating and at the same time reciprocating piston motion for use in piston machines or piston engines.
They are simple, compact and also usable for high performance. Some versions combine an electomotor or electric generator with the mechanical device in order to produce the motion of the piston by electric energy or to produce electric energy by the motion of the piston.
Another version uses a rotating part of this mechanical device for the transmission of the power to the outside of the machine or vice versa.
Description
-- 2 -- 1 3 rl 9 ) ~! O
ROTATING-RECIPROCATING PISTQN ENGINE/~ACHINE
TECHN J CAL F I ELD
Technical field of the invention are piston engines and piston machines with reciprocating and at the same time rotating pistons in the cylinder. The "classic", well known reciprocating piston engine has pistons which only execute a reciprocating motion. The piston motion is in this ease mostly produced by a crankshaft and a conneeting rod.
The disadvantages of the classic reciprocating piston engine are among other things the friction of the only reciproeating piston at the cylinder, the space required of the erank mechanism and in the most cases the neeessity of separate organs for the control of the intakes and outlets.
Universally usable piston engines or maehine~ were therefore proposed whieh avoid these disadvantages by the piston executing with the reeiprocating motion at the same time a rotating motion. This kind of machine will thereafter be called "rotating and alternating piston maehine" or "rotating-reciprocating piston maehine" beeau~e of the typieal rotating and reciproeating motion of the piston.
"Rotating-reeiproeating piston maehine" means not only a maehine but also an engine in the following.
DESCRIPTION OF THE STATE OF THE ART
The following executions of the rotating-reeiproeating piston machine are known:
Kenneth R. Malby describes in patent (~S 2,352,369) a piston machine by whieh the piston exeeutes a reeiproeating motion and at the same time a rotating motion. This motion is produced by the following device: a cam-like eurved ~ath is rotating relatively to guiding elements and makes thereby a rotating reciprocating motion relatively to the guiding elements. Eighter this eam-like eurved path is fixed to the piston and the guiding elements in form of rollers ete. are fixed to the eylinder or viee versa.
- 3 - 1 3093no A problem of this device is the extremly high mechanical stress in these parts.
Therefore, the purpose of this present invention is to produce the rotating reciprocating motion of the piston by a device which eliminates the mentioned problems with its different executions.
STATEMENTS OF INVENTION
According to the present invention there is provided a piston engine or piston machine with at least one piston which is arranged to execute a rotating motion around the cylinder axis and at the same time a reciprocating stroke motion parallel to the cylinder axis, characterized in that this piston motion is produced by a bearing consisting of two parts which rotate relative to each other, whereas the axis of this bearing is not parallel to the axis of the piston or of the cylinder respectively, and in that eighter one part of this bearing is fixed at the piston or represent~ a part of the piston and the other part is excentrically linked with the cylinder, or in that one part of the bearing is fixed at the cylinder or represents a part of the cylinder and the other part, the ~hort hollow shaft, is excentrically linked with the piston.
This means that there exist two types and one somehow is an inversion of the other.
Other versions additionally combine the bearing with an electromotor or generator, or use the mentioned short hollow shaft to mechanically transmit the power, or have an adjustable stroke length or compression ratio, or use the front (working) faces of the pistons to synchronize the motion of the pistons, or are characterized by a special lubrication of the piston.
1 3(~9300 According to one aspect of the invention there is provided a piston machine comprising a piston housed within a cylinder which executes a rotating motion about the axis of said cylinder, and at the same time a reciprocating stroke motion parallel to said axis of said cylinder, the motion of said piston being directed by a bearing comprising two parts linked together, at least one of which has its axis inclined with respect to the axis of said cylinder or said piston; one part of said bearing being fixed to one of said piston and said cylinder or defining a part thereof and the other part of said bearing being articulated with respect to the other of said piston and said cylinder.
_ 4 _ 13~q30 DESCR I PT I ON OF THE DRAW I NGS
For a better understanding of the invention reference will now be made to the accompanying drawings which schematically illustrate soms examples in which:-Figure 1 is a longitudinal section through thecylinder axis of an embodiment of an engine or machine incorporating the features of the invention;
Figures 2 and 3 are schematic cross sections of a first type of arrangement for producing piston motion.
Figures 4 and 5 are schematic cross sections of a second type of arrangement for producting piston motion.
Kev To The Fiaures:
1 cylinder / 1a, 1b, 1c cylinder parts 2 piston which executes a rotating reciprocating motion =5a ~5b piston-like member which only rotates 7 working chamber; 7a dito, maximal volume 7b dito, clearance volume 8 intake channel 9 outlet channel 10 intake flow 11 outlet flow 12 spark plugs 14 central shaft 35 that part of the bearing which is fixed at the piston or represents a part of the piston, in disk-like form 36 that part of the bearing which is fixed at the piston or represents a part of the piston, sinked into the piston 37 geometric axis of the part 35 or 36.
38 that part of the bearing which is linked with the cylinder 39 joint point of the link of the part 38 with the cylinder 40 hollow shaft, being that part of the bearing which i8 excentrically linked with the piston.
41 geometric axis of the hollow shaft (40) 42 joint point between the piston and the hollow shaft.
Referring now to the drawings Figure 1 is a longitudinal section along the axis of a cylinder including ~ection~
1a, 1b, 1c of an engine or machine with four working chambers (7a and 7b). The cylinder incorporates ports in the wall thereof, the ports providing for working fluid intake (8, 10) and for working fluid outlet (9, 11). The ports are opened and closed by a piston (2) and by only rotating piston-like members (5).
~ut referring now to the object of this part of the patent application, the motion of the rotating reciprocating piston (2) is produced in the following way: A bearing, consisting of two parts (35 and 38), is disposed in an inclined way relative to the piston, that me~ns, the axis (37) of this bearing is not parallel to the axis of the piston. The inner part l35) of the bearing is fixed at the piston (2). The outer part (38) of the bearing i~ linked with th~ cylinder (1) at the articulating joint point (39).
The two parts (35 and 38) of the bearing are rotatable relative to each other around their axis (37). The pistons (2) make one reciprocating cycle, that is one forward and back motion, per revolution.
The power transmission from the piston to the outside or vice versa is made by means of a central shaft (14). The pistons (2) are connected in such a way to the central shaft (14) that they are movable along the central shaft in a longitudinal way, but that they are transferring the torque on the central shaft (14).
Figure 2 and 3a,3b show two examples of embodiment~ of the same type of mechanism which guides the piston (2) to a rotating reciprocating motion according to the present invention. In figure 2 and 2a details of the sections along the cylinder axis of a rotating reciprocating piston machine are drawn. This mechanism corresponds to the mechanism illustrated in figure 1, but the inner part (36) of the bearing is sinked in the piston (2). The outer part (38) of the bearing is rotating relatively to the axis (37) - 6 - 1 3 ~ 3 ~ O
of the bearing and is linked to the cylinder (1) by means of a joint t39). The articulating point (39) must be movable relative to the cylinder; or the connection between the bearing and the cylinder has to grant a change in the length.
Figure 4 and 5 shon two example~ of embodiments of another type of mechanism which guides the piston (2) to the rotating reciprocating motion according to the invention. Details of the section along the cylinder axi~
are drawn. The hollow shaft (40) rotates around its own axis (41). The piston (2) is connected to the hollow shaft (40) at an excentrically situated point (42). When the hollow shaft (40) is rotating, the piston (2) is rotating too and is additionally executing a reciprocating motion.
The articulating joint between the hollow shaft (40) and the piston (2) fulfils the following conditions: it must admits swivelling movements between the piston and the hollow shaft around all three or at least around two coordinate axes. In the examples of figure 4 and 5, a ball joint admits swivelling movements around all three coordinate axis. In case of the version with two swivelling axes these two coordinates must lay relative to the hollow shaft (40) in that plane which lays perpendiculary to the rotation axis (41) of the hollow shaft. Additionally, in case of all the versions the joint is movable in approximately radial direction to the rotating axis of the piston (2) or in approximately radial direction to the rotating axis (41) of the hollow shaft.
In this text, all parts of the cylinder or not moving parts connected with the cylinder, which could also be named "housing" or "block" e.t.c., are simply called "cylinder".
DESCRIPTION OF THE INVENTION
According to the present invention there is provided a piston engine or piston machine with at least one piston (2) which is arranged to execute a rotating motion around ~ 7 ~ 1 3 n9 3 0 0 the cylinder axis and at the same time a reciprocating stroke motion parallel to the cylinder ~xis, charscterized in that this piston motion is produced by a bearing consisting of two parts which rotate relative to each other. The axis of this bearing (37 respectively 41) iq not parallel to the axis of the piston or of the cylinder respectively. According to the type illustrsted in figures 2 and 3, one part of this bearing (35/36) is fixed at the piston (2) or represents a part of the piston and the other part (38) is excentrically linked with the cylinder t1).
According to the other type illustrated in figures 4 and 5, one part of the bearing is fixed st the cylinder or represents a part of the cylinder and the other part, the hollow shaft (40), is excentrically linked with the piston.
- Thus, the piston executes one reciprocsting cycle per revolution. The kinematics of this motion is dependent of the geometrical details of the embodiment and can differ from the sinusoidal form. The kinematics is influenced for example by the degree of the angle of the axis of the bearing; by the distance between the middle axis of the bearing and the joint point (39 respectively 42) which connects one part of the bearing to the cylinder respectively to the piston; by the design of this ~rticulating joint, especially of the execution of the device for the longitudinal displacability of the link, and by displacing the joint (39 respectively 42) in the direction parallel to the axis of the bearing.
In detail, the bearing i3 designed according to the known art of engineering for example with thrust bearings and radial bearings, sliding bearings or rolling bearings.
Other versions are char~cterized in thst the two parts of the bearing which rotate relative to each other are made in such a way that together they incorporate an electromotor or electric generator. In this way one part of the bearing is for example made as the armsture or rotor and the other part of the bearing functions as the stator.
- 8 - l 3~q 300 An other version is characterized in that the power is mechanically transmitted to the outside of the engine or machine by means of the mentioned hollow shaft (40).
An other version is characterized in that the length of the stroke or the compression ratio or both is adjustable by varying the angle which the axis (37 respectively 41) of the bearing shows to the axis of the piston or of the cylinder respectively. This is realized by the bearing being fixed in a swivelling way at the piston respectively at the cylinder.
An other version is characterized in that the two neighbouring front (working~ faces of two pistons (2) or of a piston (2) and a piston-like member (5) are alwnys meshing with each other like clawæ. - Thereby the rotational motion of the neighbouring pistons is synchronized.
An other version is characterized in that the piston bear upon a lubrication film, whereas, if the lubrication fluid must not get into the working chamber, the lubrication fluid is kept away from the working chamber or the ports by a scraper ring or other sealing elements. The rotating component of the motion of the pi~ton is advantageous for a hydrodynamic lubrication. The sealing element is for example mounted at the cylinder.
HEST EXECUTIONS OF THE INVENTION
The working chamber (7) is limited by two pistons (2) which both execute a rotating reciprocating motion. The motion of the piston is for example guited by the type of mechanism schematically illustrated in fig. 4 or 5. The hollow shaft (40) of that mechanism is also transferring the power to the outside of the engine or machine: Therefore the hollow shaft is geared on its outside and i~ tranGferring the output on a gear which is at the out~ide of the cylinder.
This gear driven by the hollow shaft (40) is connected to the corresponding gear of the neighbouring hollow shaft.
ROTATING-RECIPROCATING PISTQN ENGINE/~ACHINE
TECHN J CAL F I ELD
Technical field of the invention are piston engines and piston machines with reciprocating and at the same time rotating pistons in the cylinder. The "classic", well known reciprocating piston engine has pistons which only execute a reciprocating motion. The piston motion is in this ease mostly produced by a crankshaft and a conneeting rod.
The disadvantages of the classic reciprocating piston engine are among other things the friction of the only reciproeating piston at the cylinder, the space required of the erank mechanism and in the most cases the neeessity of separate organs for the control of the intakes and outlets.
Universally usable piston engines or maehine~ were therefore proposed whieh avoid these disadvantages by the piston executing with the reeiprocating motion at the same time a rotating motion. This kind of machine will thereafter be called "rotating and alternating piston maehine" or "rotating-reciprocating piston maehine" beeau~e of the typieal rotating and reciproeating motion of the piston.
"Rotating-reeiproeating piston maehine" means not only a maehine but also an engine in the following.
DESCRIPTION OF THE STATE OF THE ART
The following executions of the rotating-reeiproeating piston machine are known:
Kenneth R. Malby describes in patent (~S 2,352,369) a piston machine by whieh the piston exeeutes a reeiproeating motion and at the same time a rotating motion. This motion is produced by the following device: a cam-like eurved ~ath is rotating relatively to guiding elements and makes thereby a rotating reciprocating motion relatively to the guiding elements. Eighter this eam-like eurved path is fixed to the piston and the guiding elements in form of rollers ete. are fixed to the eylinder or viee versa.
- 3 - 1 3093no A problem of this device is the extremly high mechanical stress in these parts.
Therefore, the purpose of this present invention is to produce the rotating reciprocating motion of the piston by a device which eliminates the mentioned problems with its different executions.
STATEMENTS OF INVENTION
According to the present invention there is provided a piston engine or piston machine with at least one piston which is arranged to execute a rotating motion around the cylinder axis and at the same time a reciprocating stroke motion parallel to the cylinder axis, characterized in that this piston motion is produced by a bearing consisting of two parts which rotate relative to each other, whereas the axis of this bearing is not parallel to the axis of the piston or of the cylinder respectively, and in that eighter one part of this bearing is fixed at the piston or represent~ a part of the piston and the other part is excentrically linked with the cylinder, or in that one part of the bearing is fixed at the cylinder or represents a part of the cylinder and the other part, the ~hort hollow shaft, is excentrically linked with the piston.
This means that there exist two types and one somehow is an inversion of the other.
Other versions additionally combine the bearing with an electromotor or generator, or use the mentioned short hollow shaft to mechanically transmit the power, or have an adjustable stroke length or compression ratio, or use the front (working) faces of the pistons to synchronize the motion of the pistons, or are characterized by a special lubrication of the piston.
1 3(~9300 According to one aspect of the invention there is provided a piston machine comprising a piston housed within a cylinder which executes a rotating motion about the axis of said cylinder, and at the same time a reciprocating stroke motion parallel to said axis of said cylinder, the motion of said piston being directed by a bearing comprising two parts linked together, at least one of which has its axis inclined with respect to the axis of said cylinder or said piston; one part of said bearing being fixed to one of said piston and said cylinder or defining a part thereof and the other part of said bearing being articulated with respect to the other of said piston and said cylinder.
_ 4 _ 13~q30 DESCR I PT I ON OF THE DRAW I NGS
For a better understanding of the invention reference will now be made to the accompanying drawings which schematically illustrate soms examples in which:-Figure 1 is a longitudinal section through thecylinder axis of an embodiment of an engine or machine incorporating the features of the invention;
Figures 2 and 3 are schematic cross sections of a first type of arrangement for producing piston motion.
Figures 4 and 5 are schematic cross sections of a second type of arrangement for producting piston motion.
Kev To The Fiaures:
1 cylinder / 1a, 1b, 1c cylinder parts 2 piston which executes a rotating reciprocating motion =5a ~5b piston-like member which only rotates 7 working chamber; 7a dito, maximal volume 7b dito, clearance volume 8 intake channel 9 outlet channel 10 intake flow 11 outlet flow 12 spark plugs 14 central shaft 35 that part of the bearing which is fixed at the piston or represents a part of the piston, in disk-like form 36 that part of the bearing which is fixed at the piston or represents a part of the piston, sinked into the piston 37 geometric axis of the part 35 or 36.
38 that part of the bearing which is linked with the cylinder 39 joint point of the link of the part 38 with the cylinder 40 hollow shaft, being that part of the bearing which i8 excentrically linked with the piston.
41 geometric axis of the hollow shaft (40) 42 joint point between the piston and the hollow shaft.
Referring now to the drawings Figure 1 is a longitudinal section along the axis of a cylinder including ~ection~
1a, 1b, 1c of an engine or machine with four working chambers (7a and 7b). The cylinder incorporates ports in the wall thereof, the ports providing for working fluid intake (8, 10) and for working fluid outlet (9, 11). The ports are opened and closed by a piston (2) and by only rotating piston-like members (5).
~ut referring now to the object of this part of the patent application, the motion of the rotating reciprocating piston (2) is produced in the following way: A bearing, consisting of two parts (35 and 38), is disposed in an inclined way relative to the piston, that me~ns, the axis (37) of this bearing is not parallel to the axis of the piston. The inner part l35) of the bearing is fixed at the piston (2). The outer part (38) of the bearing i~ linked with th~ cylinder (1) at the articulating joint point (39).
The two parts (35 and 38) of the bearing are rotatable relative to each other around their axis (37). The pistons (2) make one reciprocating cycle, that is one forward and back motion, per revolution.
The power transmission from the piston to the outside or vice versa is made by means of a central shaft (14). The pistons (2) are connected in such a way to the central shaft (14) that they are movable along the central shaft in a longitudinal way, but that they are transferring the torque on the central shaft (14).
Figure 2 and 3a,3b show two examples of embodiment~ of the same type of mechanism which guides the piston (2) to a rotating reciprocating motion according to the present invention. In figure 2 and 2a details of the sections along the cylinder axis of a rotating reciprocating piston machine are drawn. This mechanism corresponds to the mechanism illustrated in figure 1, but the inner part (36) of the bearing is sinked in the piston (2). The outer part (38) of the bearing is rotating relatively to the axis (37) - 6 - 1 3 ~ 3 ~ O
of the bearing and is linked to the cylinder (1) by means of a joint t39). The articulating point (39) must be movable relative to the cylinder; or the connection between the bearing and the cylinder has to grant a change in the length.
Figure 4 and 5 shon two example~ of embodiments of another type of mechanism which guides the piston (2) to the rotating reciprocating motion according to the invention. Details of the section along the cylinder axi~
are drawn. The hollow shaft (40) rotates around its own axis (41). The piston (2) is connected to the hollow shaft (40) at an excentrically situated point (42). When the hollow shaft (40) is rotating, the piston (2) is rotating too and is additionally executing a reciprocating motion.
The articulating joint between the hollow shaft (40) and the piston (2) fulfils the following conditions: it must admits swivelling movements between the piston and the hollow shaft around all three or at least around two coordinate axes. In the examples of figure 4 and 5, a ball joint admits swivelling movements around all three coordinate axis. In case of the version with two swivelling axes these two coordinates must lay relative to the hollow shaft (40) in that plane which lays perpendiculary to the rotation axis (41) of the hollow shaft. Additionally, in case of all the versions the joint is movable in approximately radial direction to the rotating axis of the piston (2) or in approximately radial direction to the rotating axis (41) of the hollow shaft.
In this text, all parts of the cylinder or not moving parts connected with the cylinder, which could also be named "housing" or "block" e.t.c., are simply called "cylinder".
DESCRIPTION OF THE INVENTION
According to the present invention there is provided a piston engine or piston machine with at least one piston (2) which is arranged to execute a rotating motion around ~ 7 ~ 1 3 n9 3 0 0 the cylinder axis and at the same time a reciprocating stroke motion parallel to the cylinder ~xis, charscterized in that this piston motion is produced by a bearing consisting of two parts which rotate relative to each other. The axis of this bearing (37 respectively 41) iq not parallel to the axis of the piston or of the cylinder respectively. According to the type illustrsted in figures 2 and 3, one part of this bearing (35/36) is fixed at the piston (2) or represents a part of the piston and the other part (38) is excentrically linked with the cylinder t1).
According to the other type illustrated in figures 4 and 5, one part of the bearing is fixed st the cylinder or represents a part of the cylinder and the other part, the hollow shaft (40), is excentrically linked with the piston.
- Thus, the piston executes one reciprocsting cycle per revolution. The kinematics of this motion is dependent of the geometrical details of the embodiment and can differ from the sinusoidal form. The kinematics is influenced for example by the degree of the angle of the axis of the bearing; by the distance between the middle axis of the bearing and the joint point (39 respectively 42) which connects one part of the bearing to the cylinder respectively to the piston; by the design of this ~rticulating joint, especially of the execution of the device for the longitudinal displacability of the link, and by displacing the joint (39 respectively 42) in the direction parallel to the axis of the bearing.
In detail, the bearing i3 designed according to the known art of engineering for example with thrust bearings and radial bearings, sliding bearings or rolling bearings.
Other versions are char~cterized in thst the two parts of the bearing which rotate relative to each other are made in such a way that together they incorporate an electromotor or electric generator. In this way one part of the bearing is for example made as the armsture or rotor and the other part of the bearing functions as the stator.
- 8 - l 3~q 300 An other version is characterized in that the power is mechanically transmitted to the outside of the engine or machine by means of the mentioned hollow shaft (40).
An other version is characterized in that the length of the stroke or the compression ratio or both is adjustable by varying the angle which the axis (37 respectively 41) of the bearing shows to the axis of the piston or of the cylinder respectively. This is realized by the bearing being fixed in a swivelling way at the piston respectively at the cylinder.
An other version is characterized in that the two neighbouring front (working~ faces of two pistons (2) or of a piston (2) and a piston-like member (5) are alwnys meshing with each other like clawæ. - Thereby the rotational motion of the neighbouring pistons is synchronized.
An other version is characterized in that the piston bear upon a lubrication film, whereas, if the lubrication fluid must not get into the working chamber, the lubrication fluid is kept away from the working chamber or the ports by a scraper ring or other sealing elements. The rotating component of the motion of the pi~ton is advantageous for a hydrodynamic lubrication. The sealing element is for example mounted at the cylinder.
HEST EXECUTIONS OF THE INVENTION
The working chamber (7) is limited by two pistons (2) which both execute a rotating reciprocating motion. The motion of the piston is for example guited by the type of mechanism schematically illustrated in fig. 4 or 5. The hollow shaft (40) of that mechanism is also transferring the power to the outside of the engine or machine: Therefore the hollow shaft is geared on its outside and i~ tranGferring the output on a gear which is at the out~ide of the cylinder.
This gear driven by the hollow shaft (40) is connected to the corresponding gear of the neighbouring hollow shaft.
Claims
THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A piston machine comprising a piston housed within a cylinder which executes a rotating motion about the axis of said cylinder, and at the same time a reciprocating stroke motion parallel to said axis of said cylinder, the motion of said piston being directed by a bearing comprising two parts linked together, at least one of which has its axis inclined with respect to the axis of said cylinder or said piston; one part of said bearing being fixed to one of said piston and said cylinder or defining a part thereof and the other part of said bearing being articulated with respect to the other of said piston and said cylinder.
2. A piston machine according to claim 1, wherein one part of said bearing is formed by an inclined flange disposed about and integral with said piston and wherein the other part of said bearing is rotatably linked with said cylinder and comprises a ring defining an annular groove on its inner periphery, said groove being adapted to house said flange therein.
3. A piston machine according to claim 1, wherein said piston comprises a recessed annular groove having an axis inclined with respect to the axis of the piston, and wherein an annular ring is housed in said recess, defining one part of said bearing, said ring being rotatably linked to the other part of said bearing, said other part of said bearing being housed in said wall of said cylinder and fixed in relation to said wall.
4. A piston machine according to claim 1, wherein said cylinder comprises a recessed annular groove having an axis inclined with respect to the axis of the cylinder and a hollow shaft defining a part of said bearing and housed within said channel, said hollow shaft being rotatable within said channel, said other part of said bearing being received within said hollow shaft and being pivotally linked to said piston.
5. A piston machine according to claim 1, wherein said cylinder wall comprises a recessed annular groove having an axis inclined with respect to the axis of the cylinder and a hollow shaft defining a part of said bearing and housed within said channel, said hollow shaft being rotatable within said channel, said other part of said bearing being pivotally received within said hollow shaft and comprising an annular ring slideably engaging with an annularly recessed portion of said piston.
6. A piston machine according to claim 1, 2, 3, 4 or 5 the two parts of said bearing being made in such a way that together they define part of an electromotor or an electric generator.
7. A piston machine according to claim 4 or 5 wherein said hollow shaft is capable of transmitting power mechanically to the outside of the machine or engine.
8. A piston machine according to claim 1, 2 or 3 wherein said bearing is fixed in a swivelling way at said piston and at said cylinder, whereby the length of the stroke or the compression ratio or both is adjustable by varying the angle at which the axis part of the bearing is inclined to the axis of the piston or of the cylinder respectively.
9. A piston machine according to claim 1, comprising at least two pistons or a piston and a piston-like member wherein two neighboring working faces of said pistons or piston-like members continuously mesh with each other in a claw-like manner.
10. A piston machine according to claim 1, comprising a lubrication film upon which the piston bears, the lubrication fluid being kept away from the working chamber or the port by a scraper ring or other sealing element.
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A piston machine comprising a piston housed within a cylinder which executes a rotating motion about the axis of said cylinder, and at the same time a reciprocating stroke motion parallel to said axis of said cylinder, the motion of said piston being directed by a bearing comprising two parts linked together, at least one of which has its axis inclined with respect to the axis of said cylinder or said piston; one part of said bearing being fixed to one of said piston and said cylinder or defining a part thereof and the other part of said bearing being articulated with respect to the other of said piston and said cylinder.
2. A piston machine according to claim 1, wherein one part of said bearing is formed by an inclined flange disposed about and integral with said piston and wherein the other part of said bearing is rotatably linked with said cylinder and comprises a ring defining an annular groove on its inner periphery, said groove being adapted to house said flange therein.
3. A piston machine according to claim 1, wherein said piston comprises a recessed annular groove having an axis inclined with respect to the axis of the piston, and wherein an annular ring is housed in said recess, defining one part of said bearing, said ring being rotatably linked to the other part of said bearing, said other part of said bearing being housed in said wall of said cylinder and fixed in relation to said wall.
4. A piston machine according to claim 1, wherein said cylinder comprises a recessed annular groove having an axis inclined with respect to the axis of the cylinder and a hollow shaft defining a part of said bearing and housed within said channel, said hollow shaft being rotatable within said channel, said other part of said bearing being received within said hollow shaft and being pivotally linked to said piston.
5. A piston machine according to claim 1, wherein said cylinder wall comprises a recessed annular groove having an axis inclined with respect to the axis of the cylinder and a hollow shaft defining a part of said bearing and housed within said channel, said hollow shaft being rotatable within said channel, said other part of said bearing being pivotally received within said hollow shaft and comprising an annular ring slideably engaging with an annularly recessed portion of said piston.
6. A piston machine according to claim 1, 2, 3, 4 or 5 the two parts of said bearing being made in such a way that together they define part of an electromotor or an electric generator.
7. A piston machine according to claim 4 or 5 wherein said hollow shaft is capable of transmitting power mechanically to the outside of the machine or engine.
8. A piston machine according to claim 1, 2 or 3 wherein said bearing is fixed in a swivelling way at said piston and at said cylinder, whereby the length of the stroke or the compression ratio or both is adjustable by varying the angle at which the axis part of the bearing is inclined to the axis of the piston or of the cylinder respectively.
9. A piston machine according to claim 1, comprising at least two pistons or a piston and a piston-like member wherein two neighboring working faces of said pistons or piston-like members continuously mesh with each other in a claw-like manner.
10. A piston machine according to claim 1, comprising a lubrication film upon which the piston bears, the lubrication fluid being kept away from the working chamber or the port by a scraper ring or other sealing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000615727A CA1309300C (en) | 1987-09-15 | 1990-05-11 | Rotating-reciprocating engine/machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000546858A CA1312235C (en) | 1987-09-15 | 1987-09-15 | Rotating-reciprocating engine/machine |
| CA000615727A CA1309300C (en) | 1987-09-15 | 1990-05-11 | Rotating-reciprocating engine/machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000546858A Division CA1312235C (en) | 1986-04-04 | 1987-09-15 | Rotating-reciprocating engine/machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1309300C true CA1309300C (en) | 1992-10-27 |
Family
ID=4136441
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000546858A Expired - Fee Related CA1312235C (en) | 1986-04-04 | 1987-09-15 | Rotating-reciprocating engine/machine |
| CA000615727A Expired - Lifetime CA1309300C (en) | 1987-09-15 | 1990-05-11 | Rotating-reciprocating engine/machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000546858A Expired - Fee Related CA1312235C (en) | 1986-04-04 | 1987-09-15 | Rotating-reciprocating engine/machine |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA1312235C (en) |
-
1987
- 1987-09-15 CA CA000546858A patent/CA1312235C/en not_active Expired - Fee Related
-
1990
- 1990-05-11 CA CA000615727A patent/CA1309300C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA1312235C (en) | 1993-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |