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GB1016540A - Improvements relating to axial seals for rotary-piston internal combustion engines - Google Patents

Improvements relating to axial seals for rotary-piston internal combustion engines

Info

Publication number
GB1016540A
GB1016540A GB4942064A GB4942064A GB1016540A GB 1016540 A GB1016540 A GB 1016540A GB 4942064 A GB4942064 A GB 4942064A GB 4942064 A GB4942064 A GB 4942064A GB 1016540 A GB1016540 A GB 1016540A
Authority
GB
United Kingdom
Prior art keywords
ring
piston
rotary
chambers
collected
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
GB4942064A
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
Publication of GB1016540A publication Critical patent/GB1016540A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Devices (AREA)
  • Mechanical Sealing (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1,016,540. Rotary-piston internal combustion engines. DAIMLER-BENZ A.G. Dec. 4, 1964 [Dec. 7, 1963], No. 49420/64. Heading F1F. A rotary-piston I.C. engine of trochoidal type includes an axial seal comprising an oilscraper ring 7, Fig. 1, disposed in an annular groove 5 in the end wall 2 of the piston 3 and secured to one limb 9 of a metal bellows 11 whose other limb 10 is secured in the groove 5 non-rotatively with respect to the piston and a preliminary scraper ring 8 bearing against the inner peripheral surface of the ring 7. The rings are pressed independently of each other into sealing contact with the housing side wall 4, the ring 7 by the bellows and spring means 14 and the ring 8 by spring means 18. Oil which passes the ring 8 is collected in chambers formed by bores 16 between the sealing faces 20, 15 of the rings 8, 7 respectively and discharged by inwardly directed acceleration faces through ports 21 in the housing side wall 4. In a modification, the sealing face 15 may be replaced by an insert of ceramic material or by graphite or sintered materials. The bellows 11 may be shaped to act as a spring in which case the spring means 14 are dispensed with. The chambers in which the oil is collected may instead of being formed in the ring 7 may be formed in the ring 8 and comprise annular chambers disposed radially one outside the other and subdivided into separate chambers by radial ribs. The ring 8 is then provided with driving lugs engageable with complementary grooves in the piston so that the ring 8 rotates with the piston and the oil may again be collected by means of ports in the housing side wall.
GB4942064A 1963-12-07 1964-12-04 Improvements relating to axial seals for rotary-piston internal combustion engines Expired GB1016540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963D0043120 DE1241662B (en) 1963-12-07 1963-12-07 Inner seal for rotary piston internal combustion engines

Publications (1)

Publication Number Publication Date
GB1016540A true GB1016540A (en) 1966-01-12

Family

ID=7047348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4942064A Expired GB1016540A (en) 1963-12-07 1964-12-04 Improvements relating to axial seals for rotary-piston internal combustion engines

Country Status (2)

Country Link
DE (1) DE1241662B (en)
GB (1) GB1016540A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506275A (en) * 1966-09-26 1970-04-14 Toyo Kogyo Co Seal construction for rotary combustion engine
US3836296A (en) * 1971-04-08 1974-09-17 Nippon Piston Ring Co Ltd Oil seal for use in a rotary piston internal combustion engine
USRE28714E (en) * 1972-07-14 1976-02-17 Audi Nsu Auto Union Aktiengesellschaft Internal seal for rotary piston combustion engine
US3981642A (en) * 1973-07-09 1976-09-21 Toyota Jidosha Kogyo Kabushiki Kaisha Protective device for rotary engine oil seal
US4087099A (en) * 1976-03-01 1978-05-02 Toyo Kogyo Co., Ltd. Oil seal means for rotary piston engines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127362Y2 (en) * 1971-04-08 1976-07-12

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1944875A (en) * 1926-02-26 1934-01-30 Bullington Motors Sealing means for annular cylinder engines
US2000341A (en) * 1932-06-08 1935-05-07 Master Electric Co Grease seal for bearings
GB744034A (en) * 1953-03-21 1956-01-25 Boyer Metallurg Fluidtight sealing devices for bearings
US2930636A (en) * 1958-03-31 1960-03-29 Borg Warner Self-adjusting seal
DE1146700B (en) * 1961-02-10 1963-04-04 Nsu Motorenwerke Ag Liquid cooling for pistons of rotary piston engines
FR1307897A (en) * 1961-12-13 1962-10-26 Curtiss Wright Corp Oil seal for rotary type piston machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506275A (en) * 1966-09-26 1970-04-14 Toyo Kogyo Co Seal construction for rotary combustion engine
US3836296A (en) * 1971-04-08 1974-09-17 Nippon Piston Ring Co Ltd Oil seal for use in a rotary piston internal combustion engine
USRE28714E (en) * 1972-07-14 1976-02-17 Audi Nsu Auto Union Aktiengesellschaft Internal seal for rotary piston combustion engine
US3981642A (en) * 1973-07-09 1976-09-21 Toyota Jidosha Kogyo Kabushiki Kaisha Protective device for rotary engine oil seal
US4087099A (en) * 1976-03-01 1978-05-02 Toyo Kogyo Co., Ltd. Oil seal means for rotary piston engines

Also Published As

Publication number Publication date
DE1241662B (en) 1967-06-01

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