GB1017568A - Rotary piston machines - Google Patents

Rotary piston machines

Info

Publication number
GB1017568A
GB1017568A GB39975/63A GB3997563A GB1017568A GB 1017568 A GB1017568 A GB 1017568A GB 39975/63 A GB39975/63 A GB 39975/63A GB 3997563 A GB3997563 A GB 3997563A GB 1017568 A GB1017568 A GB 1017568A
Authority
GB
United Kingdom
Prior art keywords
piston
ring
sealing
annular member
lubricant
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
Application number
GB39975/63A
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.)
Wankel GmbH
Audi AG
Original Assignee
Wankel GmbH
NSU Motorenwerke 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 Wankel GmbH, NSU Motorenwerke AG filed Critical Wankel GmbH
Publication of GB1017568A publication Critical patent/GB1017568A/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • 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
    • F02B2053/005—Wankel engines
    • 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
    • F02B2730/00—Internal-combustion engines with pistons rotating or oscillating with relation to the housing
    • F02B2730/01—Internal-combustion engines with pistons rotating or oscillating with relation to the housing with one or more pistons in the form of a disk or rotor rotating with relation to the housing; with annular working chamber
    • F02B2730/018—Internal-combustion engines with pistons rotating or oscillating with relation to the housing with one or more pistons in the form of a disk or rotor rotating with relation to the housing; with annular working chamber with piston rotating around an axis passing through the gravity centre, this piston or the housing rotating at the same time around an axis parallel to the first axis
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)
  • Valve Device For Special Equipments (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Sealing Devices (AREA)

Abstract

1,017,568. Rotary-piston engines. NSU MOTORENWERKE A.G. and WANKEL G.m.b.H. Oct. 10, 1963 [Oct. 13, 1962], No. 39975/63. Heading F1F. In a rotary-piston I.C. engine of the trochoidal n and n+1 lobe type annular members 14, 15 are attached to end faces of an eccentric 7 on which the piston 8 is rotatably mounted, and metallic sealing-rings 16 are lodged between said members and the end walls of the piston to prevent lubricant entering the working chambers. A rubber ring 17<SP>1</SP> is provided in each sealing ring to effect sealing between the ring and an adjacent flange 19 on the periphery of the associated annular member, the ring being biased in the direction of the piston by a leafspring 17. Each of the annular members has a central tubular hub 22, or 23, in engagement with an aperture in the adjacent side wall 3, or 4, of the engine housing, spiral grooves 23 being formed in said hubs to seal a clearance gap 24. Cooling of the piston is accomplished by circulation of lubricant through passages 30, 31 in the annular members and a cavity 13 in the piston, the lubricant also serving to lubricate gearing 10, 11 for controlling the planetary motion of the pistons, a bearing 9 supporting the piston on the eccentric, and bearings for a power-output shaft 6. Each of the rings 16 may be replaced by a ring 16<SP>1</SP> (Fig. 3, not shown) which is pressed by springs against a ring 25 attached to the piston and having a flange 25 mating with a groove in the associated annular member. An outwardly-inclined gap 27 between each annular member and the corresponding ring 25 serves to return lubricant by centrifugal action to cavity 13. Alternatively, sealing between the annular members and the piston is effected by the provision of a narrow gap between each ring 25 and the associated annular member (Fig. 4, not shown), or each ring 25 has axially-extending flanges mating with grooves in the adjacent annular member to form a labyrinth seal (Fig. 5, not shown). The annular members may be integral with the eccentric and one of them may be omitted, in which case sealing of one side of the piston is achieved by application of an axial load to press the piston against the adjacent side wall of the housing.
GB39975/63A 1962-10-13 1963-10-10 Rotary piston machines Expired GB1017568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN22209A DE1187854B (en) 1962-10-13 1962-10-13 Rotary piston engine, in particular an internal combustion engine of the trochoid design

Publications (1)

Publication Number Publication Date
GB1017568A true GB1017568A (en) 1966-01-19

Family

ID=7342058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39975/63A Expired GB1017568A (en) 1962-10-13 1963-10-10 Rotary piston machines

Country Status (3)

Country Link
US (1) US3249094A (en)
DE (1) DE1187854B (en)
GB (1) GB1017568A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299645B (en) * 1964-12-10 1969-07-24 Nsu Motorenwerke Ag Rotary piston machine, in particular rotary piston internal combustion engine
US3323712A (en) * 1965-12-11 1967-06-06 Nsu Motorenwerke Ag Rotary internal combustion engine
DE1451757A1 (en) * 1965-12-15 1969-05-29 Goetzewerke Oil seal for rotary piston internal combustion engines
DE1526404A1 (en) * 1966-02-02 1970-06-18 Audi Nsu Auto Union Ag Rotary piston internal combustion engine
US3369740A (en) * 1966-05-04 1968-02-20 Kloeckner Humboldt Deutz Ag Rotary piston internal combustion engine, especially circular piston internal combustion engine
FR2017559A1 (en) * 1968-09-07 1970-05-22 Kloeckner Humboldt Deutz Ag
DE3717801A1 (en) * 1987-05-26 1988-12-08 Wankel Gmbh LUBRICATION SYSTEM OF A ROTARY PISTON INTERNAL COMBUSTION ENGINE
DE4003675A1 (en) * 1990-02-07 1991-08-08 Wankel Gmbh Revolving piston IC engine - has enclosing sealed insert installed on eccentric of shaft between ring gear and pinion of synchronous gear
US5049049A (en) * 1990-05-18 1991-09-17 Wankel Gmbh Rotary piston internal combustion engine
DE102004008309A1 (en) * 2004-02-20 2005-11-17 Wankel Super Tec Gmbh Rotary piston internal combustion engine with a device for conveying the lubricating oil
DE102004052928B4 (en) 2004-10-29 2009-06-04 Herbert Jung Pump, in particular sludge pump

Also Published As

Publication number Publication date
US3249094A (en) 1966-05-03
DE1187854B (en) 1965-02-25

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