GB1032399A - Rotary piston machines - Google Patents

Rotary piston machines

Info

Publication number
GB1032399A
GB1032399A GB46172/63A GB4617263A GB1032399A GB 1032399 A GB1032399 A GB 1032399A GB 46172/63 A GB46172/63 A GB 46172/63A GB 4617263 A GB4617263 A GB 4617263A GB 1032399 A GB1032399 A GB 1032399A
Authority
GB
United Kingdom
Prior art keywords
piston
coolant
shaft
pockets
ring
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
GB46172/63A
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.)
N S U MOTORENWERKE AG
Audi AG
Original Assignee
N S U MOTORENWERKE AG
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 N S U MOTORENWERKE AG, NSU Motorenwerke AG filed Critical N S U MOTORENWERKE AG
Publication of GB1032399A publication Critical patent/GB1032399A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/02—Pistons
    • F02B55/04—Cooling thereof
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Centrifugal Separators (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1,032,399. Rotary-piston machines. N.S.U. MOTORENWERKE A.G. and WANKEL G.m.b.H. Nov. 22, 1963 [Nov. 28, 1962], No. 46172/63. Heading F1F. A rotary-piston machine e.g. an I.C. engine, of the trochoidal n and n+1 lobe type comprises a piston 4, Figs. 1 and 2 (not shown) containing a plurality of cavities 5 which are charged with a liquid coolant through bores in a rotatable shaft 2 supporting the piston on an eccentric 3, or bores in a side wall 1 of a housing for the piston, the coolant being periodically ejected from each of the cavities by acceleration forces through an outlet opening 7 and at least one collecting pocket 10 formed in an annular body or ring 9 which is fixed by a pin 8 to be rotated with the shaft. Each of the pockets 10 is in register with one of the openings 7 when the acceleration forces acting on the coolant in the associated cavity are directed radially towards the shaft. The ring 9 is provided with an outwardly-orientated flange or edge 15 which overlaps a portion of the wall 1 to prevent coolant passing into a gap between the wall and the piston containing a sealing ring 40. In a modification, Fig. 3 (not shown), the pockets 10 are formed in a cylindrical member or body 16 attached to the shaft 2 in register with an axially-extending passage 17 for the coolant. In another modification, Fig. 4 (not shown), the collecting pockets 30 are formed in an axial extension 32 of the eccentric 3<SP>1</SP> in alignment with an axiallyextending passage 37 for the coolant. In a further modification, Fig. 5 (not shown), the collecting pockets 28 are formed in a ring 9<SP>1</SP> having a hub 27 attached to the shaft 2 and a sealing ring 52 engaging with a ring 50 fixed to the piston, the pockets being inclined relative to the shaft to promote the flow of coolant by centrifugal action. In another modification, Figs. 6 and 7 (not shown), the collecting pockets-22 are formed in an annular body 18 attached to the side of the piston by screws 19 and carrying a sealing ring 25 which engages with the piston. Each pocket has an outwardly-inclined radially-outermost surface 21 to effect ejection of the coolant by centrifugal action. The outer surface of a hub portion 20 of the body, includes a helical oil-return groove 26.
GB46172/63A 1962-11-28 1963-11-22 Rotary piston machines Expired GB1032399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN22416A DE1187423B (en) 1962-11-28 1962-11-28 Device for discharging coolant from the pistons of rotary piston engines, in particular rotary piston internal combustion engines

Publications (1)

Publication Number Publication Date
GB1032399A true GB1032399A (en) 1966-06-08

Family

ID=7342137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46172/63A Expired GB1032399A (en) 1962-11-28 1963-11-22 Rotary piston machines

Country Status (3)

Country Link
US (1) US3269370A (en)
DE (1) DE1187423B (en)
GB (1) GB1032399A (en)

Families Citing this family (9)

* 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
DE1526404A1 (en) * 1966-02-02 1970-06-18 Audi Nsu Auto Union Ag Rotary piston internal combustion engine
GB1376765A (en) * 1971-10-08 1974-12-11 Daimler Benz Ag Rotary-piston internal combustion engines
GB1378827A (en) * 1971-12-24 1974-12-27 Audi Ag Piston for rotary piston machines and a die-casting tool for its manufacture
DE2432077A1 (en) * 1974-07-04 1976-01-22 Audi Nsu Auto Union Ag LIGHT ALLOY PISTON FOR A ROTATING PISTON COMBUSTION MACHINE
DE8812757U1 (en) * 1988-10-11 1989-02-16 Wankel Gmbh, 1000 Berlin, De
US8967988B2 (en) 2011-07-28 2015-03-03 Pratt & Whitney Canada Corp. Apex and face seals with rotary internal combustion engine
US11976559B1 (en) * 2023-04-07 2024-05-07 Pratt & Whitney Canada Corp. Rotor for a rotary engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042009A (en) * 1958-10-02 1962-07-03 Nsu Motorenwerke Ag Cooling arrangement for rotary mechanisms
US3091386A (en) * 1959-04-23 1963-05-28 Nsu Motorenwerke Ag Cooling system for rotary mechanisms
US3102682A (en) * 1961-02-10 1963-09-03 Nsu Motorenwerke Ag Neckarsulm Liquid cooling for the rotor of a rotating-piston engine
FR1289803A (en) * 1961-05-09 1962-04-06 Daimler Benz Ag Piston cooling of machines with rotary and circular displacement pistons
DE1142726B (en) * 1961-09-09 1963-01-24 Nsu Motorenwerke Ag Rotary piston machine, in particular internal combustion engine

Also Published As

Publication number Publication date
DE1187423B (en) 1965-02-18
US3269370A (en) 1966-08-30

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