CN1283252A - Power unit for use as pressure-fluid-operated motor and/or pressure fluid pump - Google Patents
Power unit for use as pressure-fluid-operated motor and/or pressure fluid pump Download PDFInfo
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- CN1283252A CN1283252A CN98812560.9A CN98812560A CN1283252A CN 1283252 A CN1283252 A CN 1283252A CN 98812560 A CN98812560 A CN 98812560A CN 1283252 A CN1283252 A CN 1283252A
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- 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
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/063—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
- F01C1/073—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them having pawl-and-ratchet type drive
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- Hydraulic Motors (AREA)
- Catching Or Destruction (AREA)
- Jet Pumps And Other Pumps (AREA)
- Reciprocating Pumps (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Motor Or Generator Frames (AREA)
- Control Of Electric Motors In General (AREA)
- Braking Systems And Boosters (AREA)
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- Heat Treatment Of Sheet Steel (AREA)
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
A power unit for use as a pressure-fluid-operated motor and/or a pressure fluid pump, the power unit comprising a cylinder space, a piston moving in the cylinder space and channels for pressure fluid. The cylinder is annular and it comprises pistons which are of the same shape as the cross section of the cylinder space, and the pistons are arranged to rotate around the axis of the cylinder space. The power unit further comprises a transmission shaft and locking members for locking the piston so that it cannot rotate with respect to the cylinder space.
Description
The present invention relates to a kind of power plant as pressure fluid operated motor and/or pressure fluid pump, these power plant comprise: a ring-shaped cylinder cavity; At least two pistons that move relative to each other, the profile of this piston is identical with the transverse section of cylindrical cavity circumference basically with size, in these power plant, one to major general's piston is set to relative cylindrical cavity around its axis rotation, thereby piston can move by the circumferencial direction along cylindrical cavity in cylindrical cavity; One transmission shaft, it is set to the axis rotation of described piston around cylindrical cavity, and the runner that is used for pressure fluid is imported and discharges cavity between the piston.
For example pressure fluid operated motor and/or pressure fluid pump are extensively known for everyone as the various power plant of pressure fluid Effector.The pattern of pressure fluid operated motor has multiple, for example piston motor, screw motor, gear motor and sliding-vane motor.The pressure fluid pump of various types also is known, for example plunger pump, screw pump, gear pump and vane pump.Same power plant had both played motor usually, played pump again, and therefore, in same device, the oil hydraulic pump that for example is connected thereto can be identical with oil hydraulic motor.
Comprise piston power plant structure and make normally very complicatedly, so they have Sealing and some elements that is easy to wear and tear.It is quite expensive making said apparatus, and to their maintenance working cost is increased significantly.On the other hand, concerning the screw type device, screw mechanism is expensive and be difficult to make.Though it is relative more cheap that sliding-vane motor and gear motor and vane pump and gear pump manufacture, the efficient of leaf type power plant is all very low in all fields, and it operates very inaccuracy.
Another problem of prior art scheme is: when using it for manipulation one actuator, be difficult to actuator is directed to a preposition exactly, when a certain running action that replaces is controlled, need for example extra temperature instrumentation and control system, this makes the use of prior art scheme difficult and expensive.
The purpose of this invention is to provide a kind of power plant as the pressure fluid Effector, it is simple and be easy to execution, and if desired, it can produce accurate movement in the mode similar to stepper motor.Power plant of the present invention are characterised in that, it comprises locking member, thereby being used to lock at least one piston can not rotate it, perhaps be used to make its deceleration of motion, thereby at least one piston and transmission shaft around its rotation can be rotated around its axis synchronously with respect to cylindrical cavity with respect to the cylindrical cavity axis.
Basic thought of the present invention is: cylindrical cavity and at least two pistons around the axis rotation around spin axis of being provided with an annular, sealing, this piston has the shape of the transverse section of toroidal cavity, in the following manner piston is arranged to around described axis rotation, that is, at least one piston is set to respect to described axis motionless or its motion and can slows down each time.Another basic thought of the present invention is: it includes runner, and as required, pressure fluid can be by the cylindrical cavity part between this runner inflow or the outflow two-piston.When pressure fluid is supplied in the cavity between the piston, piston is set to motionless or its motion can be slowed down, pressure fluid makes another piston motion, and simultaneously, piston makes the axle connected directly or indirectly with it rotate with respect to cylindrical space.Correspondingly, when the rotation of axle, it makes the piston motion that links to each other with this, and be set to fix when a piston or when making its deceleration of motion, spool just force pressure fluid flow to go out cavity between the piston.
An advantage of the present invention is: by adopt can be set to fix if necessary or with respect to the rotation of cylindrical cavity axis piston, piston in turn is arranged in the ring-shaped cylinder cavity, thereby can produces continuous basically, parallel rotatablely moving with cylindrical cavity.If adopt one or more pistons in the following manner, that is, piston is set to and can not moves simultaneously, and this device just can be used to form the drift angle of required number of degrees, and therefore, this device plays the effect of stepper motor.Another advantage of the present invention is: make abundant friction tight gap between piston and other surface of cylindrical cavity by employing, do not need Sealing just can turn round effectively in device basically, and do not have abrasive element basically.Therefore, can realize a universal device, and its manufacturing and operation all are quite economical.
The present invention will be described in more detail below in conjunction with accompanying drawing, wherein
Fig. 1 a schematically shows the embodiment that the working principle according to power plant of the present invention provides to 1c;
Fig. 2 is a kind of embodiment's of a power plant shown in Figure 1 decomposing schematic representation;
Fig. 3 is a embodiment of the invention schematic partial sectional view vertically shown in Figure 2;
Fig. 4 a schematically shows another embodiment of power plant of the present invention in principle to 4c;
Fig. 5 is another embodiment's of a power plant shown in Figure 4 decomposing schematic representation;
Fig. 6 is the partial sectional view of signal vertically embodiment illustrated in fig. 5; And
Fig. 7 a is the signal full figure of the embodiment of the invention to 7c.
Fig. 1 a schematically shows the basic structure of power plant of the present invention to 1c.There is shown a kind of power plant that comprise cylindrical cavity 1 annular, sealing.In the central authorities of cylindrical cavity 1, have one with the concentricity line of cylindrical cavity the axle, this axle is made of two coaxial rotating drive shafts 2 and 3.Cylindrical cavity also comprises two pistons 4 and 5 with cylindrical cavity shape of cross section, and the two all non-rotatably is connected on its transmission shaft 2 and 3 separately.Therefore, except the situation that piston in rotary movement meets each other, transmission shaft 2 and piston 4 can be with respect to cylindrical cavity 1 rotation and irrelevant with transmission shaft 3 and piston 5, and vice versa.Usually, transmission shaft 2 and 3 reaches the outside of cylindrical cavity 1, and in fact pass and constitute the required end flange of cylindrical cavity, thereby can transmission of power be arrived power plant by axle, promptly, be delivered to the piston that is installed on the above-mentioned axle, perhaps the power that is produced by the pressure that acts on the pressure fluid on the piston can be sent to the power plant outside.For the sake of simplicity, Fig. 1 a not shown end flange in the 1c.
One runner 6 passes transmission shaft 2.In the drawings, show the opening 6a of this runner on the right flank of piston 4, promptly it is in cylindrical cavity 1 part of representing with V1.Equally, at the end of transmission shaft 3 (not shown) a runner is arranged, it leads to the surface with the surperficial corresponding piston 5 of piston 4, thereby forms with that part of ring-shaped cylinder cavity 1 of V2 mark from described surface to figure and be communicated with.
When power plant are used as an oil hydraulic motor, for example at first with piston 4 lockings, thereby it can not be rotated, then, pressure fluid is delivered to the V1 part of the cylindrical cavity that is located between piston 4 and 5 by runner 6.At this moment, when the runner that passes transmission shaft 3 via piston 5 was in open mode, the pressure of the pressure fluid in the cavity V1 moved along the direction shown in the arrow A with regard to making piston 5, and simultaneously, pressure fluid flows out cavity V2 via the runner of piston 5.When piston 5 move to the position shown in Fig. 1 b or even when contacting with piston 4, piston 5 is locked, thereby it can not be rotated, the transmission of pressure fluid just is connected with other passage pivotally.In the position shown in Fig. 1 c, pressure fluid passes transmission shaft 3 and via the opening 7a of piston 5, is sent in the cavity V2 between piston 5 and 4.In this position, pressure fluid promotes piston 4 forward in the ring-shaped cylinder cavity, thereby when in the pressure fluid runner 6 of pressure fluid in opening 6a place is discharged to the transmission shaft 2 of piston 4 and when this runner flows out, rotating drive shaft 2 simultaneously.By supply pressure fluid alternately under the situation of lock piston, piston is rotated in cylindrical cavity 1.This rotatablely moves and can restore to the original state in the end of transmission shaft 2 and 3, and is sent on the device that will control by this transmission shaft.Correspondingly,, can make housing 8 rotations, thereby the power that is produced can be restored to the original state from its rotation around cylindrical cavity 1 by suitably axle being connected with locking member in a separate component.Even one of piston does not lock fully and it can not be rotated, it still can produce and rotatablely move, but for example by using a braking device or borrowing rib in other device that makes its deceleration of motion, it rotatablely moves and can be decelerated.
Aforesaid operations also can be reversed, thereby transmission shaft 2 or 3 is mechanically rotated, and this makes piston mounted thereto rotate.So, piston is released the pressure fluid runner with pressure fluid, and simultaneously, no pressure fluid flows into another cavity from another pressure fluid runner, and like this, power plant of the present invention play pump.
Fig. 2 is an embodiment's of a power plant of the present invention exploded view.Transmission shaft shown in the figure 2 is connected with 5 with piston 4 by this way with 3, that is, piston 4 and 5 can make its own location by the axle of a piston.Irrelevant in order to make transmission shaft keep its direction and position with operation power, a back shaft 9 is set between transmission shaft, this back shaft is installed in the end of transmission shaft 2 and 3 by rights.This installation can realize with sliding bearing or with other known bearing.Also express end flange 10 among the figure, utilize this end flange to form ring-shaped cylinder cavitys 1 at the housing 8 inner transmission shafts 2 and 3 that center on.Also express unidirectional clamp device (one-way clutch) 11 and 12 among the figure, it is installed on the end of end flange l0 outside transmission shaft 2 and 3.This unidirectional clamp device comprises an inner circumference, excircle and therebetween locking member.Unidirectional clamp device works by this way, that is, its inner circumference and excircle can rotate freely relative to one another along a direction, and still, locking member stops them to rotate in opposite direction.This unidirectional clamp device and structure itself thereof are well-known, and this clamp device can obtain in large quantities, therefore, needn't be described in more detail its structure and details at this.
In this embodiment of the present invention, unidirectional clamp device 11 and 12 will be installed on transmission shaft 2 and 3 by this way, that is, for example utilize the keyway 13 shown in the figure and will be pushed into key 14 in the keyway, be set to non-rotary with respect to transmission shaft 2 and 3 inner circumference of unidirectional clamp device.In addition, unidirectional clamp device 11 and 12 is installed on transmission shaft 2 and 3 by this way, that is, the unidirectional clamp device on same axle to rotate freely direction opposite.By this way it further is installed on the axle, that is, on two transmission shafts 2 and 3, the direction that rotates freely that is positioned near the unidirectional clamp device 11 the end flange 10 is parallel, as among the figure near unidirectional clamp device with the direction shown in the arrow of disconnection.The excircle of unidirectional clamp device 11 also is set to not rotate with respect to end flange 10, and the excircle of the unidirectional clamp device 12 in outside is set to not rotate with respect to independent fixed block 15.Usually, fixed block 15 can be the part of a unified pedestal or fixed block 15 can be fixed on same pedestal or the base, thereby it is not rotated relative to one another.In certain embodiments, gear or analog by being suitable for can connect transmission shaft, so that the alternately rotation of a device or axle.Also express pressure fluid joiner 16 among the figure,, pressure fluid is flowed into and outflow cylindrical cavity 1 via runner 6 and 7 by this joiner.Also express the sectional view of piston and axle A-A along the line among the figure, how to interconnect and pressure fluid is flowed into and flow out cylindrical cavity 1 so that express runner 6 and opening 6a.
Fig. 3 is the schematic side elevation in partial section according to the embodiment of the invention shown in Figure 2, expresses mounted device among the figure.As can be seen from the figure, housing 8 and end member 10 constitute the cylindrical body of a sealing, form a ring-shaped cylinder cavity around transmission shaft 2 and 3 in it.As shown in the figure, the unidirectional clamp device 11 and 12 on transmission shaft 2 and 3 is set in the following manner, that is, unidirectional clamp device 12 is fixed on the joiner 15, unidirectional clamp device 11 is fixed on the end flange 10.Independently spacer ring 17 can be arranged, so that make the two keep suitable distance each other, even this structure also can otherwise realize between unidirectional clamp device.Also express a key 14 among the figure, at the residing end position of key, this key makes transmission shaft 3 connect with unidirectional clamp device 11 and 12.Although do not show in the drawings, a corresponding key is also arranged in the end of transmission shaft 2.
In this embodiment, pressure fluid enters and makes the locking of one of piston in the cylindrical cavity 1 between piston 4 and 5, thereby they can not be by unidirectional clamp device 11 with respect to end flange 10 rotations, and another piston locks with respect to coupling 15 simultaneously.Therefore, total, promptly one of housing, end flange and piston all rotate with respect to coupling 15, thereby by housing 8 and end flange 10, the power that rotatablely moves just can be sent to suitable actuator.Correspondingly, when pressure fluid enters another cavity between the piston, piston is connected with other passage pivotally, promptly, the piston that non-rotatably is connected with end flange in the above-mentioned stage non-rotatably is connected with fastening piece at its sidepiece, and another piston is connected with end flange rather than is connected with fastening piece.Because the supply of pressure fluid, one of housing 8, end flange 10 and piston are rotated with respect to fastening piece 15 along same direction once more.In this embodiment, unidirectional clamp device 11 and 12 plays the effect of locking member, utilizes this locking member, according to its purposes, can shaft lock is fixed, thus axle can not be rotated with respect to housing that constitutes cylindrical cavity and end flange, so that produce continuous rotary motion.
Fig. 4 a shows an alternative embodiment of the invention to 4c.In this embodiment, piston 4 is fixedly mounted on the housing 8, only piston 5 is set to pivot.For fear of obscuring, among the figure identical label have with prior figures in identical implication.
In this embodiment, piston 5 is fixedly mounted on the housing 8, so unified parts of they formations, has only piston 4 with respect to axle 2 rotations.When pressure fluid entered cavity V1 by runner 6, piston 4 rotated before axially, and will rotatablely move by unidirectional clamp device in the mode identical with Fig. 1-3 simultaneously forwards.When pressure fluid entered in the cavity V2 by the runner in the axle 3, piston 5 was removed from the piston 4 that pivots, and made housing 8 rotations simultaneously.Forward so will rotatablely move according to foregoing principle with axle 3 that housing is connected with its end flange.
Fig. 5 is the perspective view of Application Example embodiment illustrated in fig. 4.In this embodiment, power plant comprise an auxiliary axis 19, and whole power plant are set to around this auxiliary axis rotation.Auxiliary axis 19 passes axle 2 and 3, thereby it can be rotated around auxiliary axis 19.Be provided with the runner 6 and 7 that extends to axle inside in the end of auxiliary axis 19, but only show runner 7 among the figure.Be provided with opening 6a and the 7a that is positioned at piston 4 both sides and pass the runner that axle 2 extends, to be used for pressure fluid, this runner is almost parallel with radius.In the end of runner, in auxiliary axis 19, be provided with pressure fluid groove 2a and 3a.Runner in the axle 2 of these grooves and piston 4 is corresponding, thereby makes pressure fluid can selectively enter the either side of piston 4 by runner 7 and 6.
Also show auxiliary flange 20 and auxiliary shell 21 among the figure, it constitutes the unified cover body around housing 8, thereby forms actuating unit.In this scheme, unidirectional clamp device 11 is connected with the auxiliary flange 20 of the housing 8 of cylindrical cavity, rather than be connected with end flange 10, therefore, their effect is identical with the explanation of carrying out in conjunction with Fig. 1-3, and just power is sent to auxiliary flange 20 from axle 2 and 3 by this way, promptly, the device that is made of auxiliary flange 20 and auxiliary shell 21 rotates around piston 4 or piston 5, and housing 8 rotates with respect to fastening piece 15 around auxiliary axis 19.
Fig. 6 is power plant shown in Figure 5 schematic side elevation in partial section vertically.As can be seen from the figure, auxiliary shell 21 and auxiliary flange 20 constitute the cover body of an encirclement housing 8 and end flange 10.Piston 4 is installed on the axle 2, and it is around auxiliary axis 19 rotations.Runner 6 passes the pressure fluid groove 2a that is positioned at auxiliary axis 19 and extends to the shaft orientation flowing channel that leads to runner opening 6a, thereby pressure fluid can the longshore current road 6 flows into groove 2a, and flows into the V1 part of cylindrical cavity 1 from opening 6a.Correspondingly, an opening 7a is arranged on the opposite side of piston 4, it is connected with pressure fluid groove 3a, thereby makes pressure fluid can flow into the V2 part of cylindrical cavity 1 via the runner 7 that is positioned at auxiliary axis 19 the other ends by opening 7a.Therefore, the piston that alternately rotates around auxiliary axis 19 makes the cylindrical body that is made of auxiliary flange 20 and auxiliary shell 21 rotate along the direction of needs.
Can replace independent auxiliary shell 21 and auxiliary flange 20 with one of auxiliary flange and the device that auxiliary shell 21 forms an one-piece element.Also can be with two semicylinders, two semicylinders all comprise an auxiliary flange 20 and housing shape parts that separate with its column ground, two this housing shape parts are linked together, to constitute a complete cylindrical body.And, can replace the auxiliary shell 21 of sealing with one or more fastening piece spaced apart from each other on the cylindrical body periphery, this fastening piece and auxiliary flange 20 interconnect.
Fig. 7 a and 7b are some embodiments' of expression power plant of the present invention signal full figures.These figure express piston and how to be provided with in the following manner, that is, same power plant comprise some pistons, and these pistons are for example installed symmetrically with respect to rotating shaft.Therefore, in this two width of cloth figure, two pairs of pistons are arranged all.Every pair of piston is all installed symmetrically with respect to rotating shaft, thereby they are in state of equilibrium.Fig. 7 a shows the application according to the embodiment of the invention of Fig. 1-3, wherein, all pistons all rotate with respect to the housing of cylindrical cavity, and Fig. 7 b shows the application according to the embodiment of the invention of Fig. 4-6, wherein, half piston is around an independent axle rotation, and second half piston is set to not rotate with respect to the housing 8 of cylindrical cavity.
According to this principle, can piston be set to comprise the combination of some pistons.In this case, the most conspicuous embodiment is such, that is, according to the principle shown in Fig. 7 a and the 7b, two groups of pistons all are symmetrical arranged with respect to rotating shaft.When using some pistons, just can form a kind of like this motor or pump, that is, its size relatively, that this motor or pump have is high-power, accurately move and can be used as stepper motor or feed pump easily.In these cases, also can adopt aforesaid way or other known mode that pressure fluid is transported in the cavity between the piston.
Can realize the present invention with various modes.In device, need not use two independent end flange, but can make one and one-piece element of housing formation in the end flange.Though also can use the transverse section of other pattern, the axial transverse section of piston is preferably such, that is, its side is parallel with the radius of rotating shaft.The size of piston also can change.
If necessary, also can replace two pistons with three or more piston.Yet, in these embodiments, need to use the axle in being arranged on each other to come conveying rotary motion sometimes.Correspondingly, if be provided with the piston of plurality of fixed on same axle, just can produce the power of the multiple of number of pistons.If number of pistons is an even number, preferably these pistons are set to two groups with respect to rotating shaft, and these two groups of pistons are provided with symmetrically simultaneously.
Can use the locking member of other pattern to replace unidirectional clamp device, for example various clamp devices, braking device or locking mechanism.Equally, various timing device be can use aspect the supply pressure fluid,, motion quite stably and accurate stepping so just can be being produced to regulate supply.In these embodiments, may need to adopt independent control to come the operational lock element, thereby make power plant play the effect of motor or pump in the mode that requires.
When using unidirectional clamp device, it plays the effect as the supporting of piston simultaneously, but when adopting the locking member of other pattern, will install with different modes.May be just enough although use sliding bearing to install in some cases, also the traditional bearing of other pattern can be installed on the axle of piston.
The device that has auxiliary axis shown in Fig. 4 to 6 also can be applied among the embodiment shown in Fig. 1 to 3.
In power plant of the present invention, can use all gases or gaseous mixture, air for example, perhaps various hydraulic fluids, for example oil, water or the like are as pressure fluid.
Can import pressure fluid and derive the runner of cavity between the piston in a known manner is set to pass axle, passes axle and piston, passes the end flange that constitutes the cylindrical cavity wall or pass housing etc.
Power plant of the present invention can play the effect of feed pump or stepper motor, and this is because its motion from a position to another position can be restricted.In order to produce required degree of motion, by using various driving mechanisms can avoid rotatablely moving of axle, perhaps pass through to use some pistons and constrained motion, the angle of inclination of the required number of degrees just can be provided by these modes, therefore, just can adjustment movement amount or amount of pressure fluid.
Certainly with independent secondary axle or utilize other known power transmission mode to replace the external cylinder shown in Fig. 5 to 6 and power is sent to outside the power plant.
Claims (13)
1. power plant as pressure fluid operated motor and/or pressure fluid pump, these power plant comprise a ring-shaped cylinder cavity (1) and at least two pistons that move relative to each other (4,5), the shape and size of piston are identical with the peripheral transverse section of cylindrical cavity (1) basically, in these power plant, to major general's piston (4,5) one in is set to respect to cylindrical cavity (1) around its axis rotation, thereby piston (4,5) can in cylindrical cavity (1), move along its peripheral direction, this device also comprises a transmission shaft (2,3), with transmission shaft (2,3) be set to the axis rotation of piston around cylindrical cavity (1), and be used for pressure fluid is imported and derivation piston (4,5) runner (6 of cavity between, 7), it is characterized in that: described power plant comprise the locking member that is used to lock at least one piston, thereby make this piston can not rotate or make its deceleration of motion with respect to the axis of cylindrical cavity (1), thus at least one piston and therewith rotating drive shafts can be synchronously with respect to cylindrical cavity (1) around its axis rotation.
2. power plant according to claim 1, it is characterized in that: it comprises at least two pistons (4,5), piston (4,5) is set to rotate around its axis with respect to cylindrical cavity (1), and piston (4,5) alternately with transmission shaft (2,3) connection in, this transmission shaft are set to the axis coaxle rotation with cylindrical cavity (1), thereby each piston can be moved with respect to the transmission shaft that links to each other with adjacent pistons (3).
3. power plant according to claim 2 is characterized in that: a runner (6,7) passes each transmission shaft (2,3) arrive corresponding piston (4,5) a surface, in each piston the same side along the circumferencial direction of cylindrical cavity (1) be provided with a runner opening (6a, 7a).
4. power plant according to claim 1 is characterized in that: the housing (8) that at least one piston (5) is set to respect to cylindrical cavity (1) is motionless.
5. power plant according to claim 4 is characterized in that: piston (5) and housing (8) are installed on the axis coaxle rotating drive shafts (3) with cylindrical cavity (1).
6. power plant according to claim 5, it is characterized in that: a runner (6,7) pass a transmission shaft (2 at least, 3) to surface with respect to the piston (4) of the housing (8) of cylindrical cavity (1) motion, circumferencial direction in the both sides of piston (4) along cylindrical cavity (1) has a runner (6 at least, opening 7) (6a, 7a).
7. according to the described power plant of any one claim of front, it is characterized in that: these power plant comprise the piston (4 of even number, 5), it is set to two transmission shafts (2,3) one of work, to be set to every one piston (4) transmission shaft (2) is worked, and will be set to every one piston (5) another transmission shaft (3) is worked, and be installed in a piston on the transmission shaft can be with respect to the motion of another transmission shaft.
8. power plant according to claim 7, it is characterized in that: these power plant comprise some to two transmission shafts (2,3) piston that works is set to piston that identical transmission shaft (2,3) is worked and is provided with substantially symmetrically with respect to the spin axis of cylindrical cavity (1) thereby make.
9. according to the described power plant of any one claim of front, it is characterized in that: locking member is unidirectional clamp device (11,12), it makes transmission shaft (2,3) axis around cylindrical cavity (1) rotates along a direction, and locking transmission shaft (2,3) and the piston that is connected with transmission shaft (4,5), thus the axis that makes them can not center on cylindrical cavity (1) moves along other direction.
10. according to any one described power plant among the claim 1-9, it is characterized in that: locking member is the braking device that is used to make the deceleration of motion of piston (4,5).
11. according to the described power plant of any one claim of front, it is characterized in that: cylindrical cavity (1) is made of the end flange (10) that independent housing (8) and at least one are installed on housing (8) side.
12. according to the described power plant of any one claim of front, it is characterized in that: these power plant comprise an independent auxiliary axis (19), and it passes transmission shaft (2,3), thereby transmission shaft (2,3) can be rotated around this auxiliary axis.
13. power plant according to claim 12 is characterized in that: the runner (6,7) that will be used for cavity between inflow of guide pressure fluid and the outflow piston (4,5) is set to pass auxiliary axis (19).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI974588A FI102916B1 (en) | 1997-12-22 | 1997-12-22 | Power unit designed for use as a propellant-driven motor and / or pressure-medium pump |
| FI974588 | 1997-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1283252A true CN1283252A (en) | 2001-02-07 |
Family
ID=8550187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98812560.9A Pending CN1283252A (en) | 1997-12-22 | 1998-12-22 | Power unit for use as pressure-fluid-operated motor and/or pressure fluid pump |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1042590B1 (en) |
| CN (1) | CN1283252A (en) |
| AT (1) | ATE282138T1 (en) |
| AU (1) | AU749866B2 (en) |
| CA (1) | CA2315752A1 (en) |
| DE (1) | DE69827527T2 (en) |
| FI (1) | FI102916B1 (en) |
| WO (1) | WO1999032760A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844642B (en) * | 2005-12-30 | 2011-02-16 | 廖海聂 | Rotary type capacity variable mechanism and rotary piston engine |
| CN101769251B (en) * | 2008-12-29 | 2013-01-09 | 张秉赤 | Arc-plug type rotary compressor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20002551A (en) * | 2000-11-21 | 2002-05-22 | Esko Raikamo | Power generator |
| AUPS250802A0 (en) * | 2002-05-23 | 2002-06-13 | Orbitalpump Pty Ltd | An apparatus to compress a fluid |
| AU2003229374B2 (en) * | 2002-05-23 | 2008-06-19 | New Fluid Technology Pty Ltd | Twin piston fluid compressor or pump apparatus with an annular bore housing |
| WO2005038198A1 (en) * | 2003-10-16 | 2005-04-28 | Esko Raikamo | A hydraulically operated power unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE123931C (en) * | 1900-01-01 | |||
| DE93408C (en) * | 1900-01-01 | |||
| AT3654B (en) * | 1899-08-14 | 1901-03-26 | Jean-Baptiste Achille Laville | |
| FR2204221A5 (en) * | 1972-10-19 | 1974-05-17 | Boes Jean | |
| US4901694A (en) * | 1988-11-14 | 1990-02-20 | Masami Sakita | Rotary engine |
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1997
- 1997-12-22 FI FI974588A patent/FI102916B1/en active IP Right Grant
-
1998
- 1998-12-22 CN CN98812560.9A patent/CN1283252A/en active Pending
- 1998-12-22 EP EP98962451A patent/EP1042590B1/en not_active Expired - Lifetime
- 1998-12-22 AU AU17619/99A patent/AU749866B2/en not_active Ceased
- 1998-12-22 AT AT98962451T patent/ATE282138T1/en not_active IP Right Cessation
- 1998-12-22 CA CA002315752A patent/CA2315752A1/en not_active Abandoned
- 1998-12-22 DE DE69827527T patent/DE69827527T2/en not_active Expired - Fee Related
- 1998-12-22 WO PCT/FI1998/001012 patent/WO1999032760A1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844642B (en) * | 2005-12-30 | 2011-02-16 | 廖海聂 | Rotary type capacity variable mechanism and rotary piston engine |
| CN101769251B (en) * | 2008-12-29 | 2013-01-09 | 张秉赤 | Arc-plug type rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69827527D1 (en) | 2004-12-16 |
| FI102916B (en) | 1999-03-15 |
| AU749866B2 (en) | 2002-07-04 |
| CA2315752A1 (en) | 1999-07-01 |
| FI102916B1 (en) | 1999-03-15 |
| WO1999032760A1 (en) | 1999-07-01 |
| FI974588A0 (en) | 1997-12-22 |
| ATE282138T1 (en) | 2004-11-15 |
| FI974588A (en) | 1999-03-15 |
| AU1761999A (en) | 1999-07-12 |
| EP1042590B1 (en) | 2004-11-10 |
| EP1042590A1 (en) | 2000-10-11 |
| DE69827527T2 (en) | 2005-10-20 |
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