EP1664540B1 - Machine a piston rotatif - Google Patents
Machine a piston rotatif Download PDFInfo
- Publication number
- EP1664540B1 EP1664540B1 EP04786754A EP04786754A EP1664540B1 EP 1664540 B1 EP1664540 B1 EP 1664540B1 EP 04786754 A EP04786754 A EP 04786754A EP 04786754 A EP04786754 A EP 04786754A EP 1664540 B1 EP1664540 B1 EP 1664540B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotors
- rotary piston
- housing
- piston engine
- engine according
- 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
- 230000007704 transition Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 13
- 230000008901 benefit Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
-
- 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
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/082—Details specially related to intermeshing engagement type machines or engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
- F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
- F04C3/08—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type 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
- F04C3/085—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type 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 piston engine, according to the preamble of the main claim.
- a rotary piston machine is known (DE-PS 4241320) as a pump, compressor or motor, in which run the combs of teeth, a rotating drive member for limiting work spaces on a cycloid surface of a likewise toothed driven part and this drive. Between the teeth of the driving part and the driven part, the said work spaces are formed, which are increased or reduced during the rotation of the parts for their work or to produce the conveying effect on a medium.
- US 3236186 also discloses a rotary engine according to the preamble of claim 1.
- connection of the housing can be given in various ways, for example, as a screw connection between two "pots" on the one hand surround the pump and on the other hand the electric motor, or there may be a Verbörtelung between a cover part and a cup part, depending on how this for the practical use and, above all, a favorable production makes sense.
- Decisive for the invention is that in the motor housing, which are arranged part related to the electric motor, such as the magnets and the bearing of the rotor and that the pump housing are housed in the machine housing, including the inflow and outflow device for the medium.
- the claimed bushing has been proposed earlier, but is not part of the prior art. However, it plays in conjunction with the individual features of claim 1 and their embodiments a significant role.
- Such an "electric pump” according to the invention is not limited in its application as a fuel pump, but can be used depending on the size and performance of liquid or gaseous media, with much higher pressures can be generated than in the known fuel pump (company Robert Bosch GmbH or the like). ,
- the bearing bush is connected to a bottom bearing for the driven part, on which the driven part is supported on its side facing away from the drive part and which is also arranged rotatably on the main axis.
- bearing bush and bottom bearing on the same axis, which is perpendicular to the bearing surface on which the output member is supported.
- the rotors run in an inner housing in which open to the rotors towards the suction channel and the pressure channel are arranged.
- This inner housing is rotatably and not floating within the rest of the machine housing and in particular against rotation of the bottom bearing.
- the inner housing may be arranged in an additional housing bushing and secured there against turning.
- This housing socket in turn, can be stored in the outer machine housing.
- the rotors run in a recess (of the inner housing), which is open and cylindrical to the driven side, and closed to the drive side and formed spherically.
- the driving part is supported, while the driven part is held on the cylindrical side by the bearing bush and the bottom bearing in its working position.
- the drive part has an inner spherical region, on which the driven part is supported with a correspondingly shaped end face, or the bearing bush of the driven part.
- the driven part is axially loaded in the direction of the drive part.
- the output member is loaded by a spring force in the direction of the drive part.
- a spring force may be particularly advantageous in the starting phase of such a pump in order to achieve the required for the promotion of tightness between the working edges of the intermeshing teeth.
- the pressure channel of the machine is connected to a space between the driven part and the housing (bottom bearing) on the side facing away from the drive part. This will achieve that when the medium has reached a certain pressure in the pressure channel, the driven part is pressed against the drive part such that the above-mentioned tightness between the flanks can be achieved by this pressure.
- the transitions between the mutually facing the axial support serving spherical bearing surfaces and the work space delimiting tooth surfaces are rounded at the rotors.
- short-circuit channels, or short-circuiting grooves are arranged in the bottom surface of the rotors, and in particular before the opening of a suction or pressure channel adjacent work spaces are connected to each other at To compensate for the changing volumes of the work spaces.
- the delivery chambers change between the parts, with the associated flanks of the teeth of one part to slide over the corresponding surfaces of the other part, so that the between the teeth lying spaces, from which the actual working spaces emerge, here act as harmful spaces. While an overpressure would be created in the one harmful room, a negative pressure would be created in the adjacent room.
- a pressure equalization of the rooms which benefits the pump efficiency.
- the illustrated fuel delivery pump has a rotary lobe pump 1 and an electric motor 2 driving this, which are arranged in a motor housing 3 and a housing cover 4 screwed thereon.
- the electric motor is greatly simplified represents with a rotor 5 and a magnet ring 6, and an axial closure part 7 of the motor housing 3, which is connected to the motor housing 3 and sealed to this.
- a fixed axis 8 (main axis) of the rotor 5, as well as the possible pressure connection 9 for the fuel discharge is arranged on this closure part 7.
- the fuel pump is designed as a submersible pump, in which via suction ports 10, which are only indicated here, the fuel passes into the pump then leave the pump again via the pressure connection 9.
- the electric motor 5, 6 flows around the fuel within the motor housing 3.
- the second fixed bearing 11 of the rotor 5 is arranged on the housing of the pump 1, which is arranged in a corresponding bore on the end face of an inner housing 12 of the rotary lobe pump 1.
- This inner housing 12 is arranged outside in a housing bushing 13, which in turn is sealed to the motor housing 3, partially clamped in this and partially within the housing cover 4.
- a recess 14 is provided in the inner housing 12, with a cylindrical section 15 and a spherical section 16.
- the recess 14 is closed on the output side by a bottom bearing 22, which is arranged obliquely to the axis of the recess 14 in order to achieve the required conveying angle and which is sealed at 23 to the housing bushing 13.
- a bottom bearing 22 is a bearing pin 24 is arranged perpendicular to the recess 14 facing the end face of the bottom bearing 22, on which via a bore 25 (Fig. 3), the driven part 18 is mounted.
- the output part 18 is supported on a spherical surface 29 facing the drive part 17 on a corresponding spherical recess 30 of the drive part 17 (FIG. 3).
- FIG. 4 shows how the conveying process takes place.
- the working spaces 21 (FIG. 2) are supplied with fuel via conveying kidneys 31 which are arranged in the walls of the inner housing 12.
- the fuel is then directed to the underside of the driven part 18, whereby this is loaded in the direction of the drive part 17, which, however, only works when the pump has already generated pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Knitting Machines (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Centrifugal Separators (AREA)
Claims (13)
- Machine à piston rotatif avec au moins deux rotors coopérant composés par élément d'entraînement (17) et un élément de sortie (18) qui par un endentement côté frontal délimitent des espaces fonctionnels (21) et qui sont disposés l'une par rapport à l'autre sous un angle axial de leurs axes de rotation,- avec un carter machine (12, 13) réceptionnant les rotors (17, 18),- avec un conduit d'aspiration (31) et un conduit sous pression (31), qui lorsque les rotors (17, 18) fonctionnement, peuvent être reliés par intermittence avec les espaces fonctionnels (21);- avec un dispositif d'entraînement (2, 5) de la machine (1),caractérisée en ce que- un moteur électrique disposé dans un carter moteur (3) qui est disposé dans le même axe que l'élément d'entraînement (17) fait office de dispositif d'entraînement (2, 5),- le carter machine (4, 12, 13) et le carter moteur (3) sont reliés entre eux,- le moteur électrique (2, 3, 5) et les rotors (17, 18) fonctionnent sur un axe principal (8) commun stationnaire disposé dans le carter moteur (3, 7) et dans le carter machine (13, 22) et- l'élément de sortie (18) est disposé de façon rotative sur un coussinet (24) présentant un angle axial correspondant par rapport à l'axe principal (8).
- Machine à piston rotatif selon la revendication 1, caractérisée en ce qu'une rotation relative du coussinet (24) de l'élément de sortie (18) sur l'axe principal (8) donne naissance à une modification de la position de rotation des espaces fonctionnels (21) par rapport au conduit d'aspiration et de refoulement (31) et donc à la phase de fonctionnement des espaces fonctionnels par rapport au conduit d'aspiration et conduit de refoulement.
- Machine à pistons rotatifs selon la revendication 1 ou 2, caractérisée en ce que,
le coussinet (24) est relié à un palier de fond (22) pour l'élément de sortie (18) sur lequel l'élément de sortie (18) s'appuie par son côté opposé à l'élément d'entraînement (17) et qui est disposé également de façon rotative sur l'axe principal (8). - Machine à pistons rotatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que,
les rotors (17, 18) fonctionnent dans un carter intérieur (12) dans lequel est disposé le conduit d'aspiration (31) et conduit de refoulement (31). - Machine à pistons rotatifs selon la revendication 4,
caractérisée en ce que
le carter intérieur (12) est disposé dans un coussinet de carter (13) et est bloqué en rotation - Machine à pistons rotatifs selon l'une quelconque des revendications précédentes,
caractérisée en ce que
les rotors (17, 18) fonctionnent dans un évidement (14) conçu pour être ouvert et sous forme cylindrique (15) en direction du côté sortie et sous forme sphérique en direction du côté entraînement (16). - Machine à pistons rotatifs selon l'une quelconque des revendications précédentes,
caractérisée en ce que
l'élément d'entraînement (17) comporte une zone intérieure sphérique (30) sur lequel l'élément de sortie (18) ou le coussinet (24) de l'élément de sortie (18) s'appuie par une face frontale (29) conçue en conséquence. - Machine à pistons rotatifs selon l'une quelconque des revendications précédentes,
caractérisée en ce que
l'élément de sortie (18) est soumis à une contrainte axiale en direction de l'élément d'entraînement (17). - Machine à pistons rotatifs selon la revendication 8,
caractérisée en ce que
l'élément de sortie (18) est contraint par la force d'un ressort en direction de l'élément d'entraînement (17). - Machine à pistons rotatifs selon la revendication 8 ou 9,
caractérisée en ce que
sur le côté opposé à l'élément d'entraînement, le conduit de refoulement de la machine est relié avec un espace entre l'élément de sortie et le carter. - Machine à pistons rotatifs selon l'une quelconque des revendications précédentes,
caractérisé en ce que sur les rotors, les passages entre les surfaces d'appui sphériques qui se font face, servant au soutien axial et les surfaces dentées délimitant l'espace fonctionnel sont arrondis. - Machine à pistons rotatifs selon la revendication 11,
caractérisée en ce que
l'arrondi a un rayon d'au moins 1 mm. - Machine à pistons rotatifs selon l'une quelconque des revendications précédentes,
caractérisée en ce que
dans les surfaces du fond des rotors sont disposés des conduits de court-circuit ou rainures de court-circuit, par l'intermédiaire desquel(le)s, pendant la rotation et notamment avant la mise à contribution d'un conduit d'aspiration ou de refoulement, on peut relier entre eux des espaces fonctionnels voisins pour obtenir une compensation de pression, avec les volumes en variation des espaces fonctionnels.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10342342 | 2003-09-11 | ||
PCT/DE2004/002033 WO2005024236A1 (fr) | 2003-09-11 | 2004-09-10 | Machine a piston rotatif |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1664540A1 EP1664540A1 (fr) | 2006-06-07 |
EP1664540B1 true EP1664540B1 (fr) | 2007-01-24 |
Family
ID=34258650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04786754A Expired - Lifetime EP1664540B1 (fr) | 2003-09-11 | 2004-09-10 | Machine a piston rotatif |
Country Status (8)
Country | Link |
---|---|
US (1) | US7275920B2 (fr) |
EP (1) | EP1664540B1 (fr) |
JP (1) | JP2007505249A (fr) |
AT (1) | ATE352717T1 (fr) |
BR (1) | BRPI0414235A (fr) |
CA (1) | CA2538004A1 (fr) |
DE (2) | DE102004044301A1 (fr) |
WO (1) | WO2005024236A1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004026048A1 (de) * | 2004-05-25 | 2005-12-29 | Cor Pumps + Compressors Ag | Spaltverluststromsteuerung |
US8834140B2 (en) * | 2004-05-25 | 2014-09-16 | Cor Pumps + Compressors Ag | Leakage loss flow control and associated media flow delivery assembly |
JP5085528B2 (ja) * | 2005-03-16 | 2012-11-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 回転ピストン機械 |
WO2007128303A1 (fr) * | 2006-05-10 | 2007-11-15 | Cor Pumps + Compressors Ag | Machine À piston rotatif |
JP5135361B2 (ja) * | 2007-03-13 | 2013-02-06 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | ポンプ若しくはモータ |
ATE502185T1 (de) * | 2007-08-31 | 2011-04-15 | Bosch Gmbh Robert | Druckluftmotor |
US9115646B2 (en) | 2010-06-17 | 2015-08-25 | Exponential Technologies, Inc. | Shroud for rotary engine |
KR101133302B1 (ko) | 2010-07-09 | 2012-04-04 | 금아유압 주식회사 | 축방향 피스톤 모터 |
DE102013226974A1 (de) * | 2013-12-20 | 2015-06-25 | Robert Bosch Gmbh | Taumelpumpe mit im Stator gelagerter Welle |
EP3724507A4 (fr) | 2017-12-13 | 2021-10-20 | Exponential Technologies, Inc. | Dispositif à écoulement de fluide rotatif |
US11168683B2 (en) | 2019-03-14 | 2021-11-09 | Exponential Technologies, Inc. | Pressure balancing system for a fluid pump |
DE102020124825A1 (de) | 2020-09-23 | 2022-03-24 | Kolektor Group D.O.O. | Motor-Pumpe-Einheit |
DE102021103306A1 (de) | 2021-02-12 | 2022-08-18 | Kolektor Group D.O.O. | Handgeführtes Druckflüssigkeitsgerät |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662482A (en) * | 1951-09-12 | 1953-12-15 | Paulsmeier Fritz | Ball piston pump |
US2831436A (en) * | 1952-08-19 | 1958-04-22 | Garvenswerke Maschinen Pumpen & Waagenfabrik W Garvens | Pump |
US3101700A (en) * | 1960-06-14 | 1963-08-27 | Meredith E Bowdish | Rotary compressor or engine |
US3236186A (en) * | 1963-04-29 | 1966-02-22 | Wildhaber Ernest | Positive-displacement unit |
DE1551081A1 (de) * | 1967-06-06 | 1970-04-16 | Walter Bietzig | Drehkugelmaschine |
US4981424A (en) * | 1988-12-21 | 1991-01-01 | The United States Of America As Represented By The Secretary Of The Navy | High pressure single screw compressors |
WO1993012325A1 (fr) * | 1991-12-09 | 1993-06-24 | Felix Arnold | Machine a piston rotatif |
CA2215219C (fr) * | 1996-11-19 | 2000-07-04 | Yukio Kajino | Moteur rotatif de type a disques |
DE10035900A1 (de) * | 2000-07-21 | 2002-01-31 | Bosch Gmbh Robert | Innenzahnradpumpe |
JP2002364572A (ja) | 2001-06-07 | 2002-12-18 | Kawakami Seisakusho:Kk | 流体圧送装置 |
DE10150653A1 (de) * | 2001-10-13 | 2003-04-30 | Bosch Gmbh Robert | Innenzahnradpumpe |
BR0313309B1 (pt) | 2002-08-02 | 2012-08-21 | máquina de êmbolo rotativa com carcaça interna deslocável. |
-
2004
- 2004-09-10 AT AT04786754T patent/ATE352717T1/de not_active IP Right Cessation
- 2004-09-10 US US10/571,243 patent/US7275920B2/en not_active Expired - Lifetime
- 2004-09-10 DE DE102004044301A patent/DE102004044301A1/de not_active Withdrawn
- 2004-09-10 CA CA002538004A patent/CA2538004A1/fr not_active Abandoned
- 2004-09-10 JP JP2006525622A patent/JP2007505249A/ja not_active Withdrawn
- 2004-09-10 DE DE502004002805T patent/DE502004002805D1/de not_active Expired - Lifetime
- 2004-09-10 WO PCT/DE2004/002033 patent/WO2005024236A1/fr active IP Right Grant
- 2004-09-10 BR BRPI0414235-7A patent/BRPI0414235A/pt not_active Application Discontinuation
- 2004-09-10 EP EP04786754A patent/EP1664540B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BRPI0414235A (pt) | 2006-10-31 |
DE502004002805D1 (de) | 2007-03-15 |
ATE352717T1 (de) | 2007-02-15 |
US7275920B2 (en) | 2007-10-02 |
WO2005024236A1 (fr) | 2005-03-17 |
DE102004044301A1 (de) | 2005-05-19 |
JP2007505249A (ja) | 2007-03-08 |
CA2538004A1 (fr) | 2005-03-17 |
US20060257277A1 (en) | 2006-11-16 |
EP1664540A1 (fr) | 2006-06-07 |
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