EP0248350A1 - Machine à piston rotatif - Google Patents

Machine à piston rotatif Download PDF

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Publication number
EP0248350A1
EP0248350A1 EP87107732A EP87107732A EP0248350A1 EP 0248350 A1 EP0248350 A1 EP 0248350A1 EP 87107732 A EP87107732 A EP 87107732A EP 87107732 A EP87107732 A EP 87107732A EP 0248350 A1 EP0248350 A1 EP 0248350A1
Authority
EP
European Patent Office
Prior art keywords
housing
inner body
guide
cylindrical
rotor
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.)
Withdrawn
Application number
EP87107732A
Other languages
German (de)
English (en)
Inventor
Dieter Merfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0248350A1 publication Critical patent/EP0248350A1/fr
Withdrawn legal-status Critical Current

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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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • 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
    • F01C1/34—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 relative reciprocation between the co-operating members

Definitions

  • the invention relates to a rotary piston machine at high speeds and pressures with stroke and slip intervention, in particular internal combustion engine according to the preamble of claim 1.
  • a rotary piston machine of this type is known from DE-PS 21 02 694.
  • the disk-like piston slides guided radially to the rotor axis in the rotor are guided via annular guide cheeks extending to the rotor axis and articulated sliding blocks in annular grooves which are incorporated in both side walls of the fixed inner body.
  • the disk-like piston valves are guided essentially outside the working spaces so that the outer edges of the piston valves move without contact within the inner casing wall and do not transmit centrifugal forces to them.
  • the invention has for its object to further improve the guidance of the piston slide in a rotary piston machine of the type mentioned.
  • guide rings are rotatably mounted in the side surfaces of the inner body around the housing axis, which have concentric to the housing axis, elongated recesses in which the guide body of the piston slide engage.
  • the rotary piston machine according to the invention has the advantage that closed guide rings rotate at the speed of the rotor on the cylindrical guide surfaces on the sides of the inner body and the guide body only a relatively small movement within the recesses caused by the eccentric arrangement of the rotor axis to the axis of the housing Perform guide rings.
  • These guide rings absorb all the centrifugal forces of the spool, so that no centrifugal forces act on the cylindrical sliding surfaces of the inner body.
  • the guide bodies, which are formed by sliding blocks of the rollers, can be kept small, so that the masses to be accelerated and decelerated per revolution due to the eccentricity are also small.
  • the rotary piston machine consists of a fixed housing with a cylindrical inner body 3, a cylindrical housing shell 11 and side walls 12 and 13 and a rotor arranged eccentrically to the housing with a rotor ring 25, side disks 23, 24 and a rotor shaft 21.
  • the cylindrical housing shell 11 is included Provided cooling fins 10.
  • the housing has an annular space which is divided by the rotor ring 25 into a crescent-shaped inner work space A1 and into a crescent-shaped outer work space A2.
  • the side plate connects the rotor ring 25 to the shaft 21 in a rotationally fixed manner.
  • the cylindrical inner body 3 is arranged centrally in the housing and is fixedly connected to the side wall 13 of the housing via a cylindrical connecting piece 31 which is eccentric to the cylinder axis 14 and coaxial to the rotor.
  • Ring segments which together form the rotor ring 25, are fastened between the side disks 23 and 24 of the rotor.
  • spool 4 are guided radially to the rotor axis 22.
  • This disk-shaped piston slide 4 extend over the width of the annular space of the housing.
  • the piston slides 4 rest with sealing strips on their outer edges 41 (FIG. 1) on the cylindrical inner wall of the housing shell 11 and with their inner edges 42 on the cylindrical surface 32 of the inner body 3.
  • the five piston slides 4 divide the two crescent-shaped working spaces A1 and A2 into five working chambers each.
  • Guide grooves 28, which run radially to the housing axis 14 and in which the piston slides 4 are guided in a radially movable manner with their lateral guide cheeks 45, are incorporated in the side disks 23, 24.
  • guide rings 50 are rotatably mounted, which have recesses 51 into which guide bodies 43 engage, which are articulated on the lateral guide cheeks 45 guided radially in the guide grooves 28.
  • the piston slide 4 are guided by the guide bodies 43 so that their rounded outer edges 41 abut the inner wall of the housing shell 11 without friction.
  • the rounded inner edges 42 of the piston spool 4 also abut the cylindrical surface 32 of the inner body 3 without friction. Between the segments of the rotor ring 25, the piston slide 4 are slidably sealed by means of sealing elements.
  • the cylindrical inner body 3 is rigidly connected to the side wall 13 of the housing via an axial, cylindrical connecting piece 31.
  • the side plate 23 of the rotor is mounted rotatably about the rotor axis 22 on this connecting piece 31.
  • the other side disk 24, which connects the rotor ring 25 to the rotor shaft 21, is rotatably mounted in the side wall 12 of the housing.
  • a support bearing for a cylindrical projection 39 of the inner body 3 is located in the rotor shaft 21.
  • the guide body 43 can be sliding blocks or - as shown in FIG. 1 - rollers which are preferably rotatably mounted on pins 46 on the extensions 45 of the piston slide 4 via needle bearings.
  • the elongated recesses 51 in the guide rings 50 which run concentrically to the housing axis 14, extend in the longitudinal direction so far that the guide bodies 43 can move back and forth during one revolution of the rotor without bumping against the two ends of the elongated recess 51.
  • the guide rings 50 can be mounted with their cylindrical inner surfaces 52 on a cylindrical shoulder on both sides of the inner body 3. In this case, the outer diameter of the guide rings 50 can be almost as large as the outer diameter of the inner body 3. This has the advantage that the lateral guide cheeks 45 on the piston slides 4 can be as short as possible and their mass can thereby be kept small.
  • the guide rings 50 can also be mounted with their cylindrical outer surface 53 on a hollow cylindrical surface comprising this outer surface 53 on the sides of the inner body 3.
  • the drive of the guide rings 50 takes place in that in each case a piston 4 with its two guide bodies 43 moves the guide rings 50 forward, by mechanical means or by pressure pads which are formed between the guide bodies 43 and the front end faces of the elongated recesses 51.
  • the five piston slides 4 take over this propulsion of the guide rings 50 in succession during one revolution of the rotor.
  • the piston slides 4 which are guided radially to the rotor axis 22 in the guide grooves 28 and tangentially to the housing axis 14 in the recesses 51 of the guide rings 50, transmit the forces acting on them via the segments of the rotor ring 25 and via the side disk 24 to the rotor shaft 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP87107732A 1986-06-05 1987-05-27 Machine à piston rotatif Withdrawn EP0248350A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19868615243 DE8615243U1 (de) 1986-06-05 1986-06-05 Rotationskolbenmaschine
DE8615243U 1986-06-05

Publications (1)

Publication Number Publication Date
EP0248350A1 true EP0248350A1 (fr) 1987-12-09

Family

ID=6795298

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19870903313 Pending EP0270583A1 (fr) 1986-06-05 1987-05-27 Machine a piston rotatif
EP87107732A Withdrawn EP0248350A1 (fr) 1986-06-05 1987-05-27 Machine à piston rotatif

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19870903313 Pending EP0270583A1 (fr) 1986-06-05 1987-05-27 Machine a piston rotatif

Country Status (3)

Country Link
EP (2) EP0270583A1 (fr)
DE (1) DE8615243U1 (fr)
WO (1) WO1987007675A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5524587A (en) * 1995-03-03 1996-06-11 Mallen Research Ltd. Partnership Sliding vane engine
US5524586A (en) * 1995-07-19 1996-06-11 Mallen Research Ltd. Partnership Method of reducing emissions in a sliding vane internal combustion engine
WO2000055478A1 (fr) * 1999-07-21 2000-09-21 Kolosovsky Vladimir Mikhailovi Machine a rotor et a expansion volumetrique
FI122753B (fi) * 2008-04-17 2012-06-29 Greittek Oy Pyörivä polttomoottori ja hydraulimoottori
TR200805753A2 (tr) * 2008-08-04 2009-03-23 Yaşar Tuncer Yilmaz Rotatif içten patlamalı motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE574384C (de) * 1930-12-06 1933-04-12 Friedrich Gieschen Drehkolbenmaschine
DE2102694A1 (de) * 1971-01-21 1972-08-03 Merfeld, Dieter, 5050 Porz Rotationskolbenmaschine, insbesondere Brennkraftmaschine
US3726259A (en) * 1971-01-14 1973-04-10 Chesterfield Yarn Mills Inc Rotary internal combustion engine
DE2720910A1 (de) * 1977-05-10 1978-11-23 Gustav Beyer Fluegelradturbomaschine ii
EP0008531A1 (fr) * 1978-08-18 1980-03-05 Ronald Edward Smolinski Machine à piston rotatif
EP0048415A1 (fr) * 1980-09-11 1982-03-31 RMC Rotary-Motor Company AG Machine à piston rotatif

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE574384C (de) * 1930-12-06 1933-04-12 Friedrich Gieschen Drehkolbenmaschine
US3726259A (en) * 1971-01-14 1973-04-10 Chesterfield Yarn Mills Inc Rotary internal combustion engine
DE2102694A1 (de) * 1971-01-21 1972-08-03 Merfeld, Dieter, 5050 Porz Rotationskolbenmaschine, insbesondere Brennkraftmaschine
DE2720910A1 (de) * 1977-05-10 1978-11-23 Gustav Beyer Fluegelradturbomaschine ii
EP0008531A1 (fr) * 1978-08-18 1980-03-05 Ronald Edward Smolinski Machine à piston rotatif
EP0048415A1 (fr) * 1980-09-11 1982-03-31 RMC Rotary-Motor Company AG Machine à piston rotatif

Also Published As

Publication number Publication date
DE8615243U1 (de) 1986-10-02
EP0270583A1 (fr) 1988-06-15
WO1987007675A1 (fr) 1987-12-17

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19880606

XX Miscellaneous (additional remarks)

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Effective date: 19890823

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Effective date: 19900103