US3745630A - Method of preassembly and assembly of a multipartite seal - Google Patents

Method of preassembly and assembly of a multipartite seal Download PDF

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Publication number
US3745630A
US3745630A US00207899A US3745630DA US3745630A US 3745630 A US3745630 A US 3745630A US 00207899 A US00207899 A US 00207899A US 3745630D A US3745630D A US 3745630DA US 3745630 A US3745630 A US 3745630A
Authority
US
United States
Prior art keywords
sealing bar
housing casing
preassembly
length
assembly
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
Application number
US00207899A
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English (en)
Inventor
W Bensinger
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Application granted granted Critical
Publication of US3745630A publication Critical patent/US3745630A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/10—Sealings for working fluids between radially and axially movable parts
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49274—Piston ring or piston packing making
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/4984—Retaining clearance for motion between assembled parts

Definitions

  • ABSTRACT A method for preassembling and assembling a multipartite sealing bar and associated spring for the piston of a rotary piston engine provided with a housing casing and lateral disks in which the parts of the sealing bar are preassembled, utilizing an adhesive dissolving under heat in such a manner that the over-all length of the sealing bar is slightly larger than the width of the housing casing; the sealing bar is then reduced in its length to the width of the housing casing when the lateral disks of the engine are assembled onto the housing casing which cause at least some of the bonded connections to be broken.
  • the present invention relates to a method for the preassembly and the assembly of a multi-partite sealing bar and of the associated spring for the piston of a rotary piston internal combustion engine provided with a housing casing and lateral disks by means of an adhesive dissolving when heated up.
  • the present invention relates to the preassembly and assembly of a sealing barconsisting of a center section and:two
  • the present invention is concerned with the task to avoid the described disadvantages.
  • the underlying problems are solved in that during the preassembly the parts of the sealing bar are bonded together under formation of an over-all length of the sealing bar which is larger than the width of the housing casing, and in that the larger over-all length of the sealing bar is reduced during the assembly to a dimension corresponding to the width of the housing casing by mounting the lateral disks at the housing casing thereby eliminating the bonding action of the adhesive.
  • the spring may be adhesively bonded or glued to the sealing bar so as to be offset unilaterally in relation to its length because it is achieved thereby that the center part of the sealing bar determined the initial tightness disengages from the spring.
  • Another object of the present invention resides in a method for assembling a multi-partite sealing bar for a rotary piston internal combustion engine which eliminates the great skill and care previously required.
  • a further object of the present invention resides in a method for preassembling and assembling a sealing bar consisting of several parts in a rotary piston internal combustion engine which assures gas tightness from the start.
  • Another object of the present invention resides in a preassembly and assembly of a multi-partite sealing bar which eliminates the needfor extensive external drive of the engine before the adhesivematerial dissolves.
  • FIGURE is a somewhat schematic, partial cross-sectional view through a rotary piston internal combustion engine provided with asealing bar preassembled in accordance with the present invention.
  • a sealing bar consisting of a center part 5 and of two lateral parts 6, to which also belongs spring 7, is provided in a groove 4 within the piston l for sealing a piston l in a housing of a rotary piston engine consisting of housing casing 2 and lateral disks 3.
  • the spring 7 is bonded by means of a conventional adhesive to the center part 5 of the sealing bar at the place 8 and to the lateral parts at the places 9; an adhesive material is thereby used of conventional type which dissolves when heated up.
  • an over-all length L is thereby given to the sealing bar during such preassembly which is larger than the width'B of the housing casing 2.
  • the individual parts of the sealing bar are pressed together to the dimension'of the width B of the housing casing 2 by eliminating at least two bonding places 8 and 9 when the lateral disks 3 are tightened onto the housing casing 2.
  • the sealing bar After the destruction of the bonded places, the sealing bar attains so much freedom that it can establish the gas tightness. During the subsequent heating-up, the remainder of the adhesive material then dissolves thereby completely eliminating any remaining bonding action.
  • a method for the preassembly and assembly of a multi-partite sealing bar and of an associated spring for the piston of a rotary piston engine provided with a housing casing and lateral disks comprising the steps of adhesively bonding together the parts of the sealing bar by preassembling the same while forming an overall length of the sealing bar which is larger than the width of the housing casing, and thereupon reducing the length of the sealing bar, during the assembly of the engine when mounting the lateral disks onto the housing casing which forcibly causes the sealing bar to be reduced toa dimension corresponding to the width of the housing casing.
  • a method according to claim 1 characterized in that the spring during the preassembly is connected to the sealing bar offset to one side in relation to its 4.
  • a method according to claim 1, characterized in lengththat the parts of the sealing bar to be assembled include 3.
  • a method according to claim 2, characterized in that the parts of the sealing bar to be assembled include a center portion and two lateral portions adjoining the 5 center portion by way of complementary inclined surfacesfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)
  • Sealing Material Composition (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
US00207899A 1970-12-16 1971-12-14 Method of preassembly and assembly of a multipartite seal Expired - Lifetime US3745630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702061933 DE2061933A1 (de) 1970-12-16 1970-12-16 Verfahren zur Vormontage und Montage einer mehrteiligen Dichtleiste

Publications (1)

Publication Number Publication Date
US3745630A true US3745630A (en) 1973-07-17

Family

ID=5791169

Family Applications (1)

Application Number Title Priority Date Filing Date
US00207899A Expired - Lifetime US3745630A (en) 1970-12-16 1971-12-14 Method of preassembly and assembly of a multipartite seal

Country Status (5)

Country Link
US (1) US3745630A (enExample)
DE (1) DE2061933A1 (enExample)
FR (1) FR2118649A5 (enExample)
GB (1) GB1326148A (enExample)
IT (1) IT945361B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB413546I5 (enExample) * 1973-11-07 1975-01-28
US4021204A (en) * 1975-06-09 1977-05-03 Breda Termomeccanica S.P.A. Method of manufacturing a grill-type support comprising two different materials and capable of being initially rigid, while allowing differential thermal expansions after installation
US4023248A (en) * 1974-06-19 1977-05-17 Toyo Kogyo Co., Ltd. Method of assembling apex seal means in rotary piston engines
CN110469424A (zh) * 2019-09-09 2019-11-19 北京理工大学 一种转子发动机的顶端密封结构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173406A (en) * 1961-11-24 1965-03-16 Adolph J Campos Rotary internal combustion engine
US3180561A (en) * 1961-06-07 1965-04-27 Nsu Motorenwerke Ag Non-jamming apex seal
US3263912A (en) * 1963-07-23 1966-08-02 Goetzewerke Radial seal
US3268157A (en) * 1963-05-10 1966-08-23 Goetzewerke Radial packing for rotary piston machines, especially internal combustion engines
US3286912A (en) * 1965-03-11 1966-11-22 Yannar Diesel Engine Co Ltd Gas-tight sealing device for rotary piston engines
US3400691A (en) * 1966-07-21 1968-09-10 Curtiss Wright Corp Seal construction for rotary combustion engines
US3556695A (en) * 1969-07-16 1971-01-19 Toyo Kogyo Co Apex seal for rotary combustion engines
US3685922A (en) * 1969-06-07 1972-08-22 Daimler Benz Ag Rotary piston internal combustion engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180561A (en) * 1961-06-07 1965-04-27 Nsu Motorenwerke Ag Non-jamming apex seal
US3173406A (en) * 1961-11-24 1965-03-16 Adolph J Campos Rotary internal combustion engine
US3268157A (en) * 1963-05-10 1966-08-23 Goetzewerke Radial packing for rotary piston machines, especially internal combustion engines
US3263912A (en) * 1963-07-23 1966-08-02 Goetzewerke Radial seal
US3286912A (en) * 1965-03-11 1966-11-22 Yannar Diesel Engine Co Ltd Gas-tight sealing device for rotary piston engines
US3400691A (en) * 1966-07-21 1968-09-10 Curtiss Wright Corp Seal construction for rotary combustion engines
US3685922A (en) * 1969-06-07 1972-08-22 Daimler Benz Ag Rotary piston internal combustion engine
US3556695A (en) * 1969-07-16 1971-01-19 Toyo Kogyo Co Apex seal for rotary combustion engines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB413546I5 (enExample) * 1973-11-07 1975-01-28
US3924314A (en) * 1973-11-07 1975-12-09 Gen Motors Corp Assembly method for rotary engine
US4023248A (en) * 1974-06-19 1977-05-17 Toyo Kogyo Co., Ltd. Method of assembling apex seal means in rotary piston engines
US4021204A (en) * 1975-06-09 1977-05-03 Breda Termomeccanica S.P.A. Method of manufacturing a grill-type support comprising two different materials and capable of being initially rigid, while allowing differential thermal expansions after installation
CN110469424A (zh) * 2019-09-09 2019-11-19 北京理工大学 一种转子发动机的顶端密封结构

Also Published As

Publication number Publication date
FR2118649A5 (enExample) 1972-07-28
GB1326148A (en) 1973-08-08
IT945361B (it) 1973-05-10
DE2061933A1 (de) 1972-06-29

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