US20130183186A1 - Seal for the rotor of rotary piston machines - Google Patents

Seal for the rotor of rotary piston machines Download PDF

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Publication number
US20130183186A1
US20130183186A1 US13/824,203 US201113824203A US2013183186A1 US 20130183186 A1 US20130183186 A1 US 20130183186A1 US 201113824203 A US201113824203 A US 201113824203A US 2013183186 A1 US2013183186 A1 US 2013183186A1
Authority
US
United States
Prior art keywords
rotor
sealing elements
groove
flange
rotary engine
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.)
Abandoned
Application number
US13/824,203
Other languages
English (en)
Inventor
Eggert Guenther
Norbert Guenther
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.)
EN3 GmbH
Original Assignee
EN3 GmbH
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 EN3 GmbH filed Critical EN3 GmbH
Assigned to EN3 GMBH reassignment EN3 GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GUENTHER, EGGERT, GUENTHER, NORBERT
Publication of US20130183186A1 publication Critical patent/US20130183186A1/en
Abandoned 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
    • 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
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer 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
    • 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
    • F01C1/344—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 with vanes reciprocating with respect 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/02—Radially-movable sealings for working fluids
    • F01C19/04—Radially-movable sealings for working fluids of rigid material
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/08—Axially-movable sealings for working fluids
    • F01C19/085—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/10—Sealings for working fluids between radially and axially movable parts
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/12—Sealing arrangements in rotary-piston machines or engines for other than working fluid
    • 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
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors

Definitions

  • This invention relates to a system of sealing the piston of rotary piston engines.
  • types of rotary piston engines have become known the pistons of which are divided transversely to the rotating axle in such a way that the piston halves can be pressed apart by springs so that they come to rest at the side walls of the surrounding housing and thus form an area sealing.
  • the sealing between the two piston halves is taken over by further sealing elements that are arranged in the parting line or groove area.
  • Rotary piston engines with pistons split in the said way can be vane cell engines or rotary piston engines.
  • the patent application DE 102006057003 A1 presents a sealing system of rotary piston engines in which the rotor consists of rotor discs arranged next to each other situated on a common rotor axle and being pressed apart by acting spring and/or gas forces in the grooves between the discs so that the front sides of the discs pointing to the side walls of the housing bear sealingly against them, thus preventing the medium from getting access to the axles.
  • stacks of movable shaped lamellae are mounted which adjust to the changing breadth of the joint and prevent an inner flow around the rotor.
  • this object is attained by means of foil-like covers placed from outside over the parting line or groove between the piston halves which covers can have the breadth of the two piston halves and are connected to the sealing elements for the radial sealing of the piston in such a way that the axial mobility of the piston halves towards each other is not restrained, the parting line or groove between them, however, is tightly closed around the rotary piston by fluid forces around the rotary piston.
  • FIGS. 1A and 1B are side views of a vane cell rotor with seals of the invention mounted theron and of one of the seals itself, respectively;
  • FIGS. 2A and 2B are perspective views corresponding to FIGS. 1A and 1B , respectively;
  • FIGS. 3A and 3B are perspective views of the rotor of a rotary piston engine of the Wankel type with a seal of the invention mounted thereon and of the seal itself, respectively;
  • FIGS. 4A and 4B are perspective views of a rotary piston engine with a two-sided piston with a seal of the invention mounted thereon and of the seal itself, respectively.
  • two piston halves 1 a and 1 b of a rotor 1 are pressed by pressure springs inside the rotor (not shown) against the side walls of the rotor housing (not shown) and the piston halves 1 a , 1 b are sealed around the central shaft (not shown).
  • the vanes 3 are pressed radially outward by the pressure springs 4 and seal the rotor against the housing runway.
  • the vanes 3 have internal pressure springs, which press them simultaneously axially outward against the housing side walls.
  • the groove between the piston halves 1 a and 1 b is covered by the sealing elements 5 .
  • the sealing elements are placed across the piston halves 1 a and 1 b in such a way that these can move in an axial direction and thus can keep their sealing attachment to the housing side walls.
  • the sealing elements 5 reach with both sides into the receiving grooves 2 in the piston halves 1 a and 1 b ; they are flanged at their lower ends so that they overlap and thereby form a fluid-tight attachment for the pressure springs 4 .
  • the sealing elements 5 consist of flexible material which is impenetrable to the fluid of the engine and at the same time has further qualities such as thermal and chemical resistance against the fluid.
  • the pressure springs 4 which cause the radial pressure of the radial sealing elements, at the same time cause a corresponding counter-pressure on the ends of the sealing elements 5 and thereby prevent them leaving the receiving grooves 2 .
  • the inventive solution is identical to the solution described for the vane-cell rotor.
  • the shape and the number of sealing elements 5 , 11 and 16 are determined by the respective configuration of the piston of the rotary piston engine and the number of sides or corners of the piston.
  • the rotor, piston halves, sealing foils, groove and vanes in FIGS. 3A , 3 B are 7 , 7 a and 7 b, 11 , 9 and 8 , respectively, and in FIGS. 4A , 4 B are 13 , 13 a and 13 b , 16 , 14 , and 15 , respectively.
  • 10 is a pressure spring under vane 8 (similar to spring 4 under vane 3 is FIG. 1A ), and, in FIG. 4A , 12 a and 12 b are low-friction coatings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
US13/824,203 2010-09-17 2011-09-15 Seal for the rotor of rotary piston machines Abandoned US20130183186A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010040958A DE102010040958B3 (de) 2010-09-17 2010-09-17 Abdichtung des Rotors von Rotationskolbenmaschinen
DE102010040958.8 2010-09-17
PCT/EP2011/065985 WO2012035091A2 (fr) 2010-09-17 2011-09-15 Joint d'étanchéité du rotor de moteurs à pistons rotatifs

Publications (1)

Publication Number Publication Date
US20130183186A1 true US20130183186A1 (en) 2013-07-18

Family

ID=44789427

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/824,203 Abandoned US20130183186A1 (en) 2010-09-17 2011-09-15 Seal for the rotor of rotary piston machines

Country Status (6)

Country Link
US (1) US20130183186A1 (fr)
EP (1) EP2616683A2 (fr)
JP (1) JP2013540938A (fr)
CN (1) CN103228869A (fr)
DE (1) DE102010040958B3 (fr)
WO (1) WO2012035091A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4212727A1 (fr) * 2022-01-14 2023-07-19 LG Electronics, Inc. Compresseur rotatif

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012011167A1 (de) 2012-06-05 2013-12-05 En3 Gmbh Rotationskolbenvorrichtung mit Flashverdampfung
WO2016050005A1 (fr) * 2014-09-29 2016-04-07 摩尔动力(北京)技术股份有限公司 Mécanisme coulissant et oscillant
CN106368809A (zh) * 2016-10-20 2017-02-01 北京理工大学 一种带有径向密封片的微小转子
US11920058B2 (en) 2018-01-26 2024-03-05 Allnex Netherlands B.V. Powder coating composition
CN110374874A (zh) * 2019-07-29 2019-10-25 黄石东贝电器股份有限公司 一种多重防泄漏弹片式滑块机构
KR102522994B1 (ko) * 2021-10-28 2023-04-19 엘지전자 주식회사 로터리 압축기

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334906A (en) * 1920-03-23 keith
US1582922A (en) * 1921-08-09 1926-05-04 Freud Joseph Rotary pump
US3359956A (en) * 1966-04-19 1967-12-26 Curtiss Wright Corp Rotor construction for rotary engines
US3995976A (en) * 1974-02-02 1976-12-07 Diesel Kiki Co., Ltd. Rotary device with axially biased blade and rotor sections
US4415321A (en) * 1980-03-25 1983-11-15 Diesel Kiki Co., Ltd. Vane compressor having a lightweight rotor
US4551896A (en) * 1983-07-16 1985-11-12 Nippon Piston Ring Co., Ltd. Method of manufacturing a rotor for a rotary fluid pump
US20100150762A1 (en) * 2006-12-02 2010-06-17 Eggert Guenther System for sealing the piston of rotary piston machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632449A1 (de) * 1976-07-19 1978-04-27 Erich Paprotny Laeuferdichtung
DE2840622A1 (de) * 1978-09-19 1980-05-29 Raimund August Abdichtung des kreismotors als verbrennungsmotor mittels dichtkoerper und verzahnung
US4308002A (en) * 1979-10-25 1981-12-29 Alfonso Di Stefano Wankel-type engine with semi-circular sectional configuration for chamber end surface

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334906A (en) * 1920-03-23 keith
US1582922A (en) * 1921-08-09 1926-05-04 Freud Joseph Rotary pump
US3359956A (en) * 1966-04-19 1967-12-26 Curtiss Wright Corp Rotor construction for rotary engines
US3995976A (en) * 1974-02-02 1976-12-07 Diesel Kiki Co., Ltd. Rotary device with axially biased blade and rotor sections
US4510659A (en) * 1980-03-15 1985-04-16 Diesel Kiki Co., Ltd. Method for manufacturing a vane compressor having a lightweight rotor
US4415321A (en) * 1980-03-25 1983-11-15 Diesel Kiki Co., Ltd. Vane compressor having a lightweight rotor
US4551896A (en) * 1983-07-16 1985-11-12 Nippon Piston Ring Co., Ltd. Method of manufacturing a rotor for a rotary fluid pump
US20100150762A1 (en) * 2006-12-02 2010-06-17 Eggert Guenther System for sealing the piston of rotary piston machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4212727A1 (fr) * 2022-01-14 2023-07-19 LG Electronics, Inc. Compresseur rotatif

Also Published As

Publication number Publication date
DE102010040958B3 (de) 2012-03-15
WO2012035091A2 (fr) 2012-03-22
WO2012035091A3 (fr) 2013-05-16
CN103228869A (zh) 2013-07-31
EP2616683A2 (fr) 2013-07-24
JP2013540938A (ja) 2013-11-07

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Legal Events

Date Code Title Description
AS Assignment

Owner name: EN3 GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GUENTHER, EGGERT;GUENTHER, NORBERT;REEL/FRAME:030020/0229

Effective date: 20130211

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION