EP1005604A1 - Rotary piston machine - Google Patents
Rotary piston machineInfo
- Publication number
- EP1005604A1 EP1005604A1 EP98949923A EP98949923A EP1005604A1 EP 1005604 A1 EP1005604 A1 EP 1005604A1 EP 98949923 A EP98949923 A EP 98949923A EP 98949923 A EP98949923 A EP 98949923A EP 1005604 A1 EP1005604 A1 EP 1005604A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary piston
- piston machine
- machine according
- shut
- working
- 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.)
- Granted
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
- F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
- F01C3/06—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees
- F01C3/08—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
-
- 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
- F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
- F01C3/06—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees
- F01C3/08—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F01C3/085—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing the axes of cooperating members being on the same plane
Definitions
- the invention relates to a rotary engine according to the type of the main claim.
- a rotary piston machine (DE P 42 41 320.6; DE G 92 18 694.7; PCT / DE 92/01025) is known in which all the lines of the cycloid part and control part which form the direction of travel extend in the extension through the intersection of the axes of rotation. This is associated with restrictions on the expansion and compression behavior of the work spaces, which limits the adaptation of the lathe to different working media and areas of application.
- the object according to the invention with the characterizing features of the main claim has the advantage that the suction and discharge behavior of the work spaces is directed by the phase shift and thus an undesirable backflow or mixing of suctioned and ejected working medium is reduced.
- the phase shift from the inner diameter to the outer diameter is at least 360 °, so that the working space is closed off from the surroundings at least in an angular position of the first or second part.
- the amplitudes of the cycloids forming the running surface of the cycloid part are different from one another, so that a further degree of freedom is gained in the design of the behavior of the work spaces.
- the working spaces are separated by positive locking between the flanks and tooth combs of the opposing teeth of the parts, so that the tooth combs of the control part run along the flanks of the teeth of the cycloid part due to the difference in the number of teeth and the backflow of the fluid towards zero goes and also the control part can be driven by the cycloids.
- control channel for the entry of the working medium on the outside diameter and the control channel for the exit of the working medium on the inside diameter of the teeth are arranged so that in turbine or engine operation, the momentum and inertial forces of the working medium are rectified with the Displacement direction of the work area. It also reduces leakage losses and improves efficiency.
- the working positions of the axes of rotation of the existing parts can be changed independently of one another. According to the invention, it is also conceivable that further additional wheel pairs are present, with at least one of the parts also having a rear toothing on the back, which in turn interacts with a further single or double toothed rotating part.
- the cycloid part or control part is present in duplicate and the other part between these duplicate parts is arranged as a ring with double-sided front trim or cycloidal running surfaces, whereby according to a further embodiment, at least two working spaces present on both sides of the ring can be connected to one another .
- this control part can have a drive or output device, or the drive and / or. Output can take place via the duplicate cycloid parts.
- the housing can serve as a stator, in which both driven cycloid parts are mounted at a corresponding working angle, between which the control part rotates freely entrained with a tooth difference per end face.
- corresponding channels which are optionally controlled during rotation are therefore present in the housing or in the control part for the supply or discharge of the working media. This not only saves additional valves, it also enables flushing in the direction of flow.
- the radial outer surface of the parts is spherical, these parts being radially sealed on a correspondingly spherical inner surface of the housing.
- the spherical guide in particular gives the possibility of changing the working position without additional sealing problems.
- This outer or inner radially sealing, spherical working space wall can be connected to the control or cycloid part and rotate and center the parts with one another.
- Another advantageous embodiment of the invention is its use as a compressor with speed-independent control, in particular by changing the phase shift of the two rotating parts to the channels of the working media.
- the compression ratio can be steplessly controlled, in particular controlled independently of the speed, by the phase shift.
- such a compressor is particularly suitable for charging internal combustion engines, since there are high speeds, especially very different speeds, the mass of the charger should be as small as possible, in particular the rotating masses to be driven, and the power must be regulated independently of the speed .
- the compressors according to the invention can be used in pressure ranges in which previously only piston machines could be used.
- a further advantageous embodiment of the invention is its use in the hydrostatic field as a pump, motor or transmission.
- the extraordinarily favorable ratio of size to volume turnover also has an effect here.
- the simple kinematics, the speed stability of the construction and the very large cross-sections of the flushing channels make these machines suitable for the highest speeds.
- the internal flow resistance of the machine according to the invention is extremely low. When used as a pump, the high dimensional stability of the parts has an advantageous effect.
- Wear also only affects the way that a kind of grinding takes place between the moving parts.
- the machine is also suitable for the highest working pressures.
- the same advantages have an effect, but especially the low masses to be accelerated, the good start-up behavior and the high volume efficiency.
- the small construction volume and the compact connectivity of the pump and hydraulic motor have a particularly advantageous effect.
- a further advantageous embodiment of the invention is its use as an engine or chiller, in particular according to the Stirling principle.
- the working spaces assigned to each other work 90 ° out of phase.
- Two rotating cycloid parts in conjunction with a rotating control part form pairs of chambers, each of which work 90 ° out of phase with each other.
- One room is exposed to heat, the other is cooled, a regenerator is integrated in the control section.
- the walls of the cold and hot work rooms are insulated from one another, even though they are spatially close. Due to the high degree of rigidity of the parts forming the work space, an extremely wide range of surfaces / work space volume is possible.
- One of the rotating parts can be designed as a rotor of a linear generator of the sterling engine or a linear motor of the Stirling refrigerator. This makes it possible to hermetically seal the machine and ensure a very high charge pressure with low leakage losses To design working gas.
- the phase shift that determines the performance of the Stirling engine is very easy to implement with this design. In any case, the amount of heat transported can be regulated independently of the speed in such a refrigeration machine.
- Fig. 1 Drive or output part and shut-off part in
- Fig. 2 Drive or output part and shut-off part in the assembled state with housing
- Fig. 3 Top view of a cycloid toothing with 4 cycloids and a spiral angle of approximately 170 °
- Fig. 4 Top view of a corresponding toothing of the
- the power section 1 and the input or output shaft 2 are shown on the right side of FIG.
- the drive or output shaft 2 which is mounted in the housing (not shown here) carries the power section 1 at one end.
- the power section 1 consists of a spherical layer 3, which is delimited towards the drive or output shaft 2 by a flat base area 4, while its end face 5 is one has spiral cycloid teeth.
- the cycloid 6 is formed by rolling off a circle on the section line 7 between the spherical surface 8 and the base 4 and the point of this circle describing the cycloid 6 is always on the spherical surface 8.
- the Cycloid 6 is the guide curve required to produce the gearing.
- a straight cycloid toothing results when a straight generating line is moved around a fixed point on the axis of rotation of the input or output shaft 2 along the guide curve 6. If a spiral generating line is used instead of the straight generating line, the spiral cycloid toothing of the power unit according to the invention results.
- the shut-off part 10 shown on the left side of FIG. 1 has a similar geometry.
- a shaft 11 which is also mounted in the housing (not shown) carries the spherical layer-shaped shut-off part 10 which is delimited towards the shaft 11 by a base area 12 and whose outer contour corresponds to a spherical surface 13.
- the end face 14 of the shut-off part 10 has a spiral toothing, the number of teeth of which is one greater than the number of cycloids 6 of the power part 1.
- the contour of the teeth corresponds to the tangents to the cycloids 6 during the synchronous rotation of power section 1 and shut-off section 10.
- the contour of the teeth can also be selected so that there is always a certain distance between the cycloid and the teeth of the shut-off section 10.
- shut-off part 10 and power part 1 are at a working angle 15 to each other. It is of no importance for the invention whether the cycloid toothing is arranged on the end face of the power section 1 as shown here and the corresponding toothing on the shut-off section 10 or vice versa.
- power section 1 and shut-off section 10 are shown in their installed position.
- Shut-off part 10, power part 1 and housing 17 form, depending on the number of cycloids, several working spaces 16, two of which are visible.
- the sealing lines 9 migrate, depending on the direction of rotation, from the outside to the inside or vice versa and thereby promote the working medium or the drive of the output shaft 2.
- the control openings (not shown) in the housing 17 are determined in accordance with the process requirements.
- the inlet opening in the housing 17 is placed at the point at which the sealing line 9 detaches from the inside diameter of the toothing.
- the external toothing is placed on the side of the housing where the working space 16 has the desired volume.
- the power of the rotary piston machine can be controlled at constant speed by moving the shut-off part 10 relative to the power part 1.
- the axis of rotation of the shut-off part 10 always remains on a conical surface, the cone angle of which corresponds to the working angle 15.
- FIG. 3 shows a simplified top view of the power section 1.
- Four spiral generating lines 18 are drawn in, which are intended to illustrate the construction of the spiral cycloid toothing.
- the generating lines 18 are placed on the highest points of the cycloids.
- the spiral angle 19 is about 170 ° in the example shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19736397 | 1997-08-21 | ||
DE19736397 | 1997-08-21 | ||
PCT/DE1998/002428 WO1999010626A1 (en) | 1997-08-21 | 1998-08-20 | Rotary piston machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1005604A1 true EP1005604A1 (en) | 2000-06-07 |
EP1005604B1 EP1005604B1 (en) | 2002-07-31 |
Family
ID=7839729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98949923A Expired - Lifetime EP1005604B1 (en) | 1997-08-21 | 1998-08-20 | Rotary piston machine |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1005604B1 (en) |
JP (1) | JP4132660B2 (en) |
KR (1) | KR100551525B1 (en) |
CN (1) | CN1093592C (en) |
AU (1) | AU9620398A (en) |
BR (1) | BR9811964A (en) |
CA (1) | CA2300812C (en) |
DE (3) | DE19881218D2 (en) |
WO (1) | WO1999010626A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8834140B2 (en) | 2004-05-25 | 2014-09-16 | Cor Pumps + Compressors Ag | Leakage loss flow control and associated media flow delivery assembly |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10163801A1 (en) * | 2001-12-22 | 2003-07-17 | Heptec Gmbh | Radial compressor, in particular compressor for respirators, impeller and respirator |
JP4473122B2 (en) | 2002-08-02 | 2010-06-02 | コア・ポンプス・プルス・コンプレッサーズ・アクチエンゲゼルシャフト | Rotary piston machine with displaceable inner casing |
DE102004026048A1 (en) * | 2004-05-25 | 2005-12-29 | Cor Pumps + Compressors Ag | Gap leakage current control |
DE102008037841A1 (en) * | 2007-08-31 | 2009-03-05 | Cor Pumps + Compressors Ag | Method for converting compressed air energy into electrical energy and carrying out the method with a compressed air motor |
DE102011084828B4 (en) * | 2011-10-19 | 2024-02-15 | Robert Bosch Gmbh | conveyor unit |
CN105756800B (en) * | 2016-04-20 | 2018-04-06 | 吉林大学 | A kind of variable-compression-ratio piston of Cycloidal pin-wheel drive |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3856440A (en) * | 1974-03-19 | 1974-12-24 | E Wildhaber | Rotor pair for positive fluid displacement |
US5513969A (en) * | 1991-12-09 | 1996-05-07 | Arnold; Felix | Rotary piston machine having engaging cycloidal gears |
-
1998
- 1998-08-20 CN CN98808358A patent/CN1093592C/en not_active Expired - Lifetime
- 1998-08-20 BR BR9811964-8A patent/BR9811964A/en not_active IP Right Cessation
- 1998-08-20 DE DE19881218T patent/DE19881218D2/en not_active Expired - Lifetime
- 1998-08-20 CA CA002300812A patent/CA2300812C/en not_active Expired - Lifetime
- 1998-08-20 JP JP2000507916A patent/JP4132660B2/en not_active Expired - Lifetime
- 1998-08-20 EP EP98949923A patent/EP1005604B1/en not_active Expired - Lifetime
- 1998-08-20 AU AU96203/98A patent/AU9620398A/en not_active Abandoned
- 1998-08-20 DE DE59805024T patent/DE59805024D1/en not_active Expired - Lifetime
- 1998-08-20 WO PCT/DE1998/002428 patent/WO1999010626A1/en active IP Right Grant
- 1998-08-20 DE DE19837729A patent/DE19837729A1/en not_active Withdrawn
- 1998-08-20 KR KR1020007001571A patent/KR100551525B1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9910626A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8834140B2 (en) | 2004-05-25 | 2014-09-16 | Cor Pumps + Compressors Ag | Leakage loss flow control and associated media flow delivery assembly |
Also Published As
Publication number | Publication date |
---|---|
AU9620398A (en) | 1999-03-16 |
DE19837729A1 (en) | 1999-05-20 |
DE59805024D1 (en) | 2002-09-05 |
CN1267355A (en) | 2000-09-20 |
CN1093592C (en) | 2002-10-30 |
DE19881218D2 (en) | 2000-07-13 |
KR20010022963A (en) | 2001-03-26 |
JP2001514352A (en) | 2001-09-11 |
CA2300812A1 (en) | 1999-03-04 |
JP4132660B2 (en) | 2008-08-13 |
BR9811964A (en) | 2000-08-15 |
CA2300812C (en) | 2007-01-09 |
EP1005604B1 (en) | 2002-07-31 |
KR100551525B1 (en) | 2006-02-13 |
WO1999010626A1 (en) | 1999-03-04 |
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