WO2009036475A1 - Rotary piston machine - Google Patents
Rotary piston machine Download PDFInfo
- Publication number
- WO2009036475A1 WO2009036475A1 PCT/AT2007/000447 AT2007000447W WO2009036475A1 WO 2009036475 A1 WO2009036475 A1 WO 2009036475A1 AT 2007000447 W AT2007000447 W AT 2007000447W WO 2009036475 A1 WO2009036475 A1 WO 2009036475A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- housing
- rotary piston
- piston
- annular space
- Prior art date
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
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/40—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member
- F01C1/44—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member with vanes hinged to the inner member
-
- 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
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
-
- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/02—Methods of operating
-
- 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
- F04C2250/00—Geometry
- F04C2250/30—Geometry of the stator
- F04C2250/301—Geometry of the stator compression chamber profile defined by a mathematical expression or by parameters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to a rotary piston machine with at least one annular space formed between a housing and a rotor rotatably mounted in the housing, which is bounded in the circumferential direction by two oppositely inclined contact surfaces of at least one tightly fitting to the rotor housing approach between a Gaszu- and a gas discharge, and one mounted on the rotor about an axis parallel to the rotor shaft, guided along the peripheral wall of the housing oscillating piston per annulus.
- the housing approach forms for this purpose oppositely inclined thrust surfaces for the oscillating piston. Since the swivel pistons bear sealingly against the peripheral wall of the housing and thus define a working space in the annular space, they can be acted upon between the steam inlet and the steam outlet with a highly stressed vapor which increases with increasing pressure. the rotational angle of the rotor and the associated increase in the resulting between the housing approach and the applied rotary piston working chamber can relax as soon as the steam supply is interrupted.
- a disadvantage of this known steam engine is especially that its performance is particularly limited when a substantial relaxation of the steam is required, because in this case the rotation angle range in which the working space can be acted upon by the highly stressed steam, must be kept relatively small , In addition, the efficiency is unsatisfactory.
- the invention is therefore the object of a rotary piston machine of the type described in such a way that not only a significant increase in performance, but also an improvement in efficiency can be achieved at a substantial relaxation of the gas.
- the invention solves this problem by the fact that the annular space between the two contact surfaces radially expanded in a circumferential direction.
- Ending torque application of the rotary piston can be achieved.
- the required sealing of the working space from the pressurizing gas is not only to ensure between the pivot piston and the housing, but also between the pivot piston and the rotor.
- the rotary piston can be inserted into a receiving pocket of the rotor, which is sealed against the loading surface of the rotary piston.
- the rotary piston machine has a housing 1 and a rotor 2 mounted in the housing 1, the shaft of which is designated by 3.
- the arrangement is made such that between the rotor 2 and the housing 1, an annular space 4 remains free.
- This annular space 4 is interrupted by a projecting against the rotor 2 housing approach 5, which rests with the aid of a seal 6 on the circular cylindrical rotor 2.
- the transition between the housing extension 5 and the rest of the annular space 4 bounding inner surface of the peripheral wall 7 of the housing 1 is formed by two oppositely inclined stop surfaces 8.
- a gas supply line 9 and a gas discharge line 10 are provided, which open into the annular space 4 in the region of the contact surfaces 8.
- the control of the gas supply line 9 via a schematically indicated rotary valve 11th
- the rotor 2 carries a pivoting piston 12 which engages in a receiving pocket 13 of the rotor 2 and is supported by means of two radial bearing webs 14 on a pivot axis 15 which is parallel to the rotor shaft 3.
- the pivoting piston 12 is located with a from the receiving pocket 13 via the rotor 2 projecting portion on the peripheral wall 7 of the housing 1 and has an outgoing from the contact area on the peripheral wall 7, to its pivot axis 15 coaxial, circular cylindrical Beaufschlagungs character 16 on.
- the seal against the peripheral wall 7 of the housing 1 and relative to the rotor 2 is ensured by seals 17 and 18.
- the inner surface of the peripheral wall 7 of the housing 1 shows in cross section between the two oppositely inclined thrust surfaces 8 following a circular cylindrical portion the shape of a spiral, so that the annular space 4 between the circular cylindrical rotor 2 and the peripheral wall 7 of the housing starting from the circular cylindrical portion increasingly expanded in the radial direction.
- the illustrated rotary piston engine is operated as a motor, for example, with steam, then the high-tensioned steam is introduced into the working space 21 during an intake phase controlled by the rotary valve 11, which extends through the section of the annular space 4 between the starting surface 8 belonging to the gas supply line 9 and the rotary piston 12 results.
- a torque is exerted on the rotor 2, which causes the rotor 2 in rotation.
- the highly stressed steam in the working chamber 21 due to the rotor rotation in response to the increase in volume of the working space 21 can relax. Because of the following in the direction of rotation of the rotor 2 increasing radius following the circular cylindrical portion of the inner surface of the peripheral wall 7 of the housing 1 on the one hand in comparison to a circular cylindrical inner surface with the rotation angle of the Rotor 2 larger increase in volume of the working space 21 and on the other hand, an enlargement of the effective loading surface 16 of the rotary piston 12 is reached, so that with respect to the torque loading of the rotor 2, the relaxation of the steam can be partially compensated by an enlargement of the effective loading surface 16 of the rotary piston 12.
- the invention is of course not limited to the illustrated embodiment, on the basis of which, above all, the operation of a rotary piston engine according to the invention should be illustrated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hydraulic Motors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AT2007/000447 WO2009036475A1 (en) | 2007-09-21 | 2007-09-21 | Rotary piston machine |
DE112007003665T DE112007003665A5 (en) | 2007-09-21 | 2007-09-21 | Swivel and rotary machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AT2007/000447 WO2009036475A1 (en) | 2007-09-21 | 2007-09-21 | Rotary piston machine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009036475A1 true WO2009036475A1 (en) | 2009-03-26 |
Family
ID=39405004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2007/000447 WO2009036475A1 (en) | 2007-09-21 | 2007-09-21 | Rotary piston machine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112007003665A5 (en) |
WO (1) | WO2009036475A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150300173A1 (en) * | 2012-11-30 | 2015-10-22 | Libralato Ltd. | Ignition engine of the rotary type with a double rotation center |
IT202100007868A1 (en) * | 2021-03-30 | 2022-09-30 | Litm Libralato Innovation Thermal Machines S R L | IMPROVED STEAM ENGINE WITH DOUBLE CENTER OF ROTATION PISTON |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE107811C (en) * | ||||
DE2308310A1 (en) * | 1973-02-20 | 1974-08-22 | Franz Weidlich | POWER AND WORK MACHINE, IN PARTICULAR COMBUSTION ENGINE |
DE2314164A1 (en) * | 1973-03-22 | 1974-10-03 | Fritz Prescha | CIRCULAR LIFT MOTOR WITH CIRCULAR LIFT COMPRESSOR |
US3890071A (en) * | 1973-09-24 | 1975-06-17 | Brien William J O | Rotary steam engine |
JPS5115808A (en) * | 1974-07-30 | 1976-02-07 | Hori Gijutsu Kenkyusho Kk | Rootarii konpuretsusaa |
AT504093A1 (en) * | 2006-09-12 | 2008-03-15 | Hochgatterer Josef | ROTARY MACHINE |
-
2007
- 2007-09-21 WO PCT/AT2007/000447 patent/WO2009036475A1/en active Application Filing
- 2007-09-21 DE DE112007003665T patent/DE112007003665A5/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE107811C (en) * | ||||
DE2308310A1 (en) * | 1973-02-20 | 1974-08-22 | Franz Weidlich | POWER AND WORK MACHINE, IN PARTICULAR COMBUSTION ENGINE |
DE2314164A1 (en) * | 1973-03-22 | 1974-10-03 | Fritz Prescha | CIRCULAR LIFT MOTOR WITH CIRCULAR LIFT COMPRESSOR |
US3890071A (en) * | 1973-09-24 | 1975-06-17 | Brien William J O | Rotary steam engine |
JPS5115808A (en) * | 1974-07-30 | 1976-02-07 | Hori Gijutsu Kenkyusho Kk | Rootarii konpuretsusaa |
AT504093A1 (en) * | 2006-09-12 | 2008-03-15 | Hochgatterer Josef | ROTARY MACHINE |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150300173A1 (en) * | 2012-11-30 | 2015-10-22 | Libralato Ltd. | Ignition engine of the rotary type with a double rotation center |
US9874098B2 (en) * | 2012-11-30 | 2018-01-23 | Libralato Ltd. | Ignition engine of the rotary type with a double rotation center |
IT202100007868A1 (en) * | 2021-03-30 | 2022-09-30 | Litm Libralato Innovation Thermal Machines S R L | IMPROVED STEAM ENGINE WITH DOUBLE CENTER OF ROTATION PISTON |
EP4067618A1 (en) * | 2021-03-30 | 2022-10-05 | Litm Libralato Innovation Thermal Machines S.r.l. | Improved open-cycle steam engine with double center of rotation piston |
Also Published As
Publication number | Publication date |
---|---|
DE112007003665A5 (en) | 2010-07-29 |
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