GB1242958A - Side housing of rotary-piston internal combustion engine - Google Patents

Side housing of rotary-piston internal combustion engine

Info

Publication number
GB1242958A
GB1242958A GB25495/69A GB2549569A GB1242958A GB 1242958 A GB1242958 A GB 1242958A GB 25495/69 A GB25495/69 A GB 25495/69A GB 2549569 A GB2549569 A GB 2549569A GB 1242958 A GB1242958 A GB 1242958A
Authority
GB
United Kingdom
Prior art keywords
hardening
zones
rotary
engine
over
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
GB25495/69A
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.)
Mazda Motor Corp
Original Assignee
Toyo Kogyo Co Ltd
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 Toyo Kogyo Co Ltd filed Critical Toyo Kogyo Co Ltd
Publication of GB1242958A publication Critical patent/GB1242958A/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
    • 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)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

1,242,958. Rotary-piston internal combustion engines. TOYO KOGYO K.K. May 19, 1969 [June 6, 1968], No.25495/69. Heading F1F. In a rotary-piston I.C. engine, shown in Fig. 1 as a two-unit engine, of the kind comprising a three-sided piston 3 which carries out a planetary movement within a casing comprising for each unit, a centre housing 2 having a two-lobed epitrochoidal inner periphery and side housings 1, the inner surface of each side housing 1 over an area a, Fig.3, extending radially outwardly from the outer envelope 17 of the loci delineated by the sliding oil seal 14 to at least the locus 16 delineated by the moving apex seals 4 is case-hardened, preferably by high frequency hardening technique, over a plurality of narrow zones 18. Instead of the zones being radial as shown in Fig. 3 they may be spirally arranged or in a pattern of concentric wavy rings. The zones may be more concentrated adjacent the minor axis of the epitrochoid or over the compression zone of each side housing. Limiting the hardening to narrow zones in the stated area is said to inhibit strain-hardening of the side housings and reduce wear on the oil seals and the inner surfaces of the side housings. In the case of an engine having a side suction port 7<SP>1</SP>, hardening of the surfaces adjacent the port may be omitted to prevent the possible forming of hardening cracks.
GB25495/69A 1968-06-06 1969-05-19 Side housing of rotary-piston internal combustion engine Expired GB1242958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3916268 1968-06-06

Publications (1)

Publication Number Publication Date
GB1242958A true GB1242958A (en) 1971-08-18

Family

ID=12545409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25495/69A Expired GB1242958A (en) 1968-06-06 1969-05-19 Side housing of rotary-piston internal combustion engine

Country Status (3)

Country Link
US (1) US3575537A (en)
DE (1) DE6922376U (en)
GB (1) GB1242958A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28918E (en) * 1969-12-12 1976-07-27 Electrophysikaische Anstalt Bernard Berghaus Components of a rotary piston machine
US3728051A (en) * 1970-11-16 1973-04-17 G Humbert Iron or steel components of a rotary piston machine
JPS5028250Y2 (en) * 1971-06-29 1975-08-21
DE2204341A1 (en) * 1972-01-31 1973-08-09 Daimler Benz Ag PROCEDURE FOR ASSEMBLING A ROTARY PISTON INTERNAL ENGINE
JPS5143288Y2 (en) * 1972-02-21 1976-10-21
US3799711A (en) * 1972-07-20 1974-03-26 Gen Motors Corp Side housing for rotary piston engine and method of hardening a surface of the same
US4050132A (en) * 1972-12-21 1977-09-27 Audi Nsu Auto Union Aktiengesellschaft Method of producing a housing for circular piston combustion engine of trochoid type
US4025366A (en) * 1973-01-17 1977-05-24 Audi Nsu Auto Union Aktiengesellschaft Method of making rotary piston engine cast iron interior seals by quench hardening
JPS589241B2 (en) * 1977-06-10 1983-02-19 マツダ株式会社 rotary piston engine
US20200018228A1 (en) * 2018-07-16 2020-01-16 Avner Ronen Rotary combustion engine rotor deactivation and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360191A (en) * 1967-12-26 Rotary piston and housing thereof
US3155313A (en) * 1962-10-01 1964-11-03 Cuertiss Wright Corp Rotor housing construction of rotating combustion engine

Also Published As

Publication number Publication date
DE6922376U (en) 1973-09-27
DE1928467A1 (en) 1969-12-11
US3575537A (en) 1971-04-20

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