EP1859170A1 - Rotary piston machine - Google Patents
Rotary piston machineInfo
- Publication number
- EP1859170A1 EP1859170A1 EP06722634A EP06722634A EP1859170A1 EP 1859170 A1 EP1859170 A1 EP 1859170A1 EP 06722634 A EP06722634 A EP 06722634A EP 06722634 A EP06722634 A EP 06722634A EP 1859170 A1 EP1859170 A1 EP 1859170A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary piston
- housing
- drive
- drive part
- pump
- 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
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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
- 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
-
- 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
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
-
- 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
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
Definitions
- the invention relates to a rotary piston engine according to the preamble of the main claim.
- a rotary engine with frontal toothing of a drive part and a driven part and between the teeth located work spaces that enlarge and shrink during rotation, whereby the conveying effect of the medium is generated in the unpublished (older) patent application 10 2004 044 297 Al described.
- the invention has for its object to improve the rotary piston engine so that it is particularly inexpensive to produce without having to forego the advantages described in the existing prior application.
- the rotary piston engine according to the invention with the characterizing features of the main claim and the secondary claim 8 has in contrast to special advantages. Characterized in that drive part and driven part are arranged within the machine housing and enclosed by the bottom bearing, on the one hand a subsequent adjustment of the game can be made to a basic setting, and on the other hand, a subsequent clamping of the running parts can be prevented, also because a structural unit between Floor storage and machine housing consists. So there remains a required axial clearance.
- the bottom bearing is to be fixed in the machine housing with its radial edge portion in a corresponding end opening of the machine housing screwed or einklebbar or pressed, that is, that the bottom bearing can be attached to the machine housing in a variety of ways. Decisive is the achievement of a structural unit.
- the machine housing is designed as a unit in a pump housing einlassbar, which is on the side facing away from the electric motor closed, " wober the " pump housing pot-shaped may be formed with a bottom extending obliquely to a central axis for supporting the bottom bearing of the driven part.
- the space in front of at least one of the drive parts on the side facing away from the pump working space can be hydraulically connected to the pressure side of the pump working space, whereby the rotors can be loaded against each other, wherein boreholes or channels in the machine housing can serve for the hydraulic connection.
- a play-compensating driving coupling is arranged between the shaft end of the electric motor and the drive part, in which embodiment the driving coupling is designed as a ring / plug-in part with a profiled inner recess for engagement the shaft end of the electric motor on the one hand and with plug-in pin on the other hand for engagement in corresponding plug-in openings on the side facing away from the pump chamber side of the drive part.
- Such play-compensating driving clutches are known per se, but new for a rotary engine of the type claimed.
- By means of this play-compensating driving clutch especially a decoupling of engine conditions on the pump and vice versa of pumping properties is achieved on the engine. Especially by creating a unit between pump parts and machine housing decoupling of the drive is important.
- Figure 1 is a fuel pump with inventive rotary piston machine in longitudinal section according to the arrow I in Figure 2.
- Fig. 3 is a driving coupling of the pump in longitudinal section and on an enlarged scale
- the fuel delivery pump shown has a rotary piston pump 1 and an electric motor 2 driving this, which are arranged in a motor housing 3 and a housing cover 4 attached thereto.
- the electric motor is shown greatly simplified with a. " Runner 5 ⁇ and a magnetic ring 6, and an axial closure part 7 of the motor housing 3, which is connected thereto and sealed to this.
- a rotary bearing 8 of the rotor 5 is provided on this closure part 7.
- the electric motor 5, 6 flows around its cooling by the fuel within the motor housing 3.
- the second pivot bearing of the rotor 5 is provided at its shaft end 9 in a bearing bore 10 of a bottom bearing 11, which is arranged in a corresponding opening on the front side of a machine housing 12 of the rotary lobe pump 1 and on which a frontally toothed drive member 13 can be axially supported.
- This machine housing 12 is arranged in a pump housing 14, which is sealed to the motor housing 3 and partially disposed in this and partially within the housing cover 4.
- the shaft end 9 protrudes into a bearing bore 15 of larger diameter, which runs coaxially to the bearing bore 10 and in which a dipping into them pin 16 of the drive member 13 is rotatably mounted.
- a driving coupling 17 is arranged between the shaft end 9 of the electric motor 2 and the journal 16 of the drive member 13, as shown in an enlarged scale in Figures 3 and 4. Since both the shaft end 9 is mounted in the bottom bearing 11, as well as the drive member 13 with its journal 16, this driving coupling 17 is to cause a certain clearance compensation, both in the longitudinal and in the transverse direction.
- the bottom bearing 11 is in fact designed as a fixed bearing and rigidly arranged between the machine housing 12, the pump housing 14, and the magnetic ring 6. - In the machine housing 12, two pump rotors, namely except the drive member 13, a driven part 18.
- the drive member 13 is driven by the shaft end 9 of the electric motor 2 and the driving clutch 17 and transmits its rotational movement by toothed entrainment on the driven part 18.
- On the front sides of the drive member 13 and the output member 18 are provided for this purpose cycloidal gears having corresponding facing each other work surfaces. As a result, 12 pumping working spaces 19 are formed between these working surfaces and the inner wall of the machine housing, as shown in Figure 2.
- An end opening of the machine housing 12 is closed on the output side by a bottom bearing 22 which is arranged coaxially with the output part 18.
- a bearing bore 24 is arranged, in which via a journal 25 of the output member 18 is mounted.
- the drive part 13 and the driven part 18 are additionally loaded in the direction of one another by the hydraulic delivery pressure, in which between the pump chamber on the pressure side and the opposite sides of the drive parts 13, 18 via " holes or channels Connection exists.
- the output member 18 is supported with a spherical elevation 26 on a corresponding spherical recess 27 of the drive member 13 from.
- the pump housing 14 may, as shown in Figures 1 and 2, in certain cases cup-shaped, with a corresponding obliquely to the drive axis, but at right angles to the axis of the driven part 18, extending bottom 28 on which the bottom bearing 22 of the output member 18 rests and supported.
- an additional structural decoupling of the pump side is advantageously given by the drive side, which can be particularly important in service.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005012511 | 2005-03-16 | ||
PCT/DE2006/000478 WO2006097092A1 (en) | 2005-03-16 | 2006-03-16 | Rotary piston machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1859170A1 true EP1859170A1 (en) | 2007-11-28 |
EP1859170B1 EP1859170B1 (en) | 2013-05-15 |
Family
ID=36617303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06722634.0A Active EP1859170B1 (en) | 2005-03-16 | 2006-03-16 | Rotary piston machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US7699592B2 (en) |
EP (1) | EP1859170B1 (en) |
JP (1) | JP5085528B2 (en) |
WO (1) | WO2006097092A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004026048A1 (en) * | 2004-05-25 | 2005-12-29 | Cor Pumps + Compressors Ag | Gap leakage current control |
US8834140B2 (en) * | 2004-05-25 | 2014-09-16 | Cor Pumps + Compressors Ag | Leakage loss flow control and associated media flow delivery assembly |
DE102008031665B4 (en) | 2007-07-05 | 2020-06-10 | Harley-Davidson Motor Company Group, LLC | Wheel speed sensor |
DE102008037903A1 (en) * | 2007-08-31 | 2009-03-05 | Cor Pumps + Compressors Ag | Method of converting compressed air energy into mechanical energy and compressed air motor therefor |
US8539931B1 (en) | 2009-06-29 | 2013-09-24 | Yousry Kamel Hanna | Rotary internal combustion diesel engine |
US9115646B2 (en) * | 2010-06-17 | 2015-08-25 | Exponential Technologies, Inc. | Shroud for rotary engine |
JP6084435B2 (en) * | 2012-08-08 | 2017-02-22 | Ntn株式会社 | Internal gear pump |
EP4053411A4 (en) * | 2019-11-01 | 2023-11-15 | Shenzhen Spherical Fluid Power Technology Co., Ltd | Spherical pump rotor static pressure support and spherical pump provided with static pressure support |
DE102020206493A1 (en) * | 2020-05-25 | 2021-11-25 | Hyundai Motor Company | Fuel pump for a liquid fuel injection system of a motor vehicle |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US324246A (en) * | 1885-08-11 | John flelding | ||
US739207A (en) * | 1902-05-28 | 1903-09-15 | Jens Nielsen | Rotary pump. |
US2016605A (en) * | 1932-02-24 | 1935-10-08 | James L Kempthorne | Pump, compressor, and the like |
US2040178A (en) * | 1933-11-11 | 1936-05-12 | James L Kempthorne | Pump or the like |
US2501998A (en) * | 1938-02-21 | 1950-03-28 | Dutrey Andre | Roto-volumetric pump |
US2375923A (en) * | 1940-08-02 | 1945-05-15 | Johnson Otto William | Pump |
US3040664A (en) * | 1959-04-13 | 1962-06-26 | Flo Motive Corp | Dual cavity fluid handling device |
US3101700A (en) * | 1960-06-14 | 1963-08-27 | Meredith E Bowdish | Rotary compressor or engine |
US3816039A (en) * | 1971-08-02 | 1974-06-11 | Commercial Metals Co | Rotary air pump with rotating and oscillating center piston |
JPS59105081U (en) * | 1982-12-30 | 1984-07-14 | いすゞ自動車株式会社 | gear pump |
US5145348A (en) * | 1991-05-15 | 1992-09-08 | Eaton Corporation | Gerotor pump having an improved drive mechanism |
US5425625A (en) * | 1994-03-24 | 1995-06-20 | Lenco Enterprises Co., Ltd. | Car-used electric fuel pump |
US6739852B1 (en) * | 1995-03-09 | 2004-05-25 | Outland Technologies Usa, Inc. | Rotary engine and method for determining engagement surface contours therefor |
EP1250515A4 (en) * | 2000-01-07 | 2004-06-23 | Outland Technologies Inc | Balanced rotors positive displacement engine and pump method and apparatus |
EP1527256B1 (en) * | 2002-08-02 | 2013-05-22 | Robert Bosch GmbH | Rotary piston machines comprising a displaceable inner housing |
US7390181B2 (en) * | 2003-09-11 | 2008-06-24 | Cor Pumps + Compressors Ag | Rotating piston machine |
CA2538004A1 (en) | 2003-09-11 | 2005-03-17 | Cor Pumps + Compressors Ag | Rotary piston machine |
DE102004026048A1 (en) * | 2004-05-25 | 2005-12-29 | Cor Pumps + Compressors Ag | Gap leakage current control |
-
2006
- 2006-03-16 JP JP2008501157A patent/JP5085528B2/en not_active Expired - Fee Related
- 2006-03-16 US US11/885,305 patent/US7699592B2/en active Active
- 2006-03-16 WO PCT/DE2006/000478 patent/WO2006097092A1/en not_active Application Discontinuation
- 2006-03-16 EP EP06722634.0A patent/EP1859170B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006097092A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006097092A1 (en) | 2006-09-21 |
US7699592B2 (en) | 2010-04-20 |
EP1859170B1 (en) | 2013-05-15 |
JP5085528B2 (en) | 2012-11-28 |
JP2008537579A (en) | 2008-09-18 |
US20080219876A1 (en) | 2008-09-11 |
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