GB1213718A - Improvements in or relating to rotary piston internal combustion engines - Google Patents

Improvements in or relating to rotary piston internal combustion engines

Info

Publication number
GB1213718A
GB1213718A GB03358/68A GB1335868A GB1213718A GB 1213718 A GB1213718 A GB 1213718A GB 03358/68 A GB03358/68 A GB 03358/68A GB 1335868 A GB1335868 A GB 1335868A GB 1213718 A GB1213718 A GB 1213718A
Authority
GB
United Kingdom
Prior art keywords
piston
ports
internal combustion
combustion engines
rotary
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
GB03358/68A
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 GB1213718A publication Critical patent/GB1213718A/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
    • F02B55/16—Admission or exhaust passages in pistons or outer members

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)
  • Tires In General (AREA)
  • Exhaust Silencers (AREA)

Abstract

1,213,718. Rotary-piston internal combustion engines. TOYO KOGYO K. K. March 19, 1968 [March 20, 1967], No.13358/68. Heading F1F. In a rotary-piston I. C. engine of trochoidal kind, comprising as shown, a three-sided piston planetarily rotatable within a casing having a centre housing with a bi-arcuate epitrochoidal inner profile and side housings and wherein a peripheral exhaust port is provided, the exhaust port is replaced by a plurality of exhaust ports 6a, 6b, 6c, Fig.2, separated by partitions 7a, 7b which are successively opened on rotation of the piston. In an alternative embodiment, the ports are in staggered relationship across the width of the centre housing 1 and in rotational direction of the piston so that the second and subsequent ports commence to open before the previous port is fully open. The porting arrangement allows of gradual reduction of pressure of the exhaustions combustion gases in the working chamber of the engine and decreased turbulence and as a consequence reduction in the high frequency exhaust noise of the exhausting gases.
GB03358/68A 1967-03-20 1968-03-19 Improvements in or relating to rotary piston internal combustion engines Expired GB1213718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1777767 1967-03-20

Publications (1)

Publication Number Publication Date
GB1213718A true GB1213718A (en) 1970-11-25

Family

ID=11953130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03358/68A Expired GB1213718A (en) 1967-03-20 1968-03-19 Improvements in or relating to rotary piston internal combustion engines

Country Status (4)

Country Link
US (1) US3448727A (en)
DE (1) DE1601837B1 (en)
FR (1) FR1557378A (en)
GB (1) GB1213718A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003558A1 (en) * 1984-12-10 1986-06-19 Bryan John Davies Rotary engine with external combustion chamber
EP2642069A3 (en) * 2012-03-22 2016-01-06 Pratt & Whitney Canada Corp. Port for rotary internal combustion engine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236564B2 (en) * 1973-07-18 1977-09-16
US3954356A (en) * 1974-11-01 1976-05-04 General Motors Corporation Rotary engine rotor housing having coolant cooled bridged exhaust port
US3981643A (en) * 1974-11-29 1976-09-21 General Motors Corporation Rotary combustion engine two-piece apex seal arrangement
US4054400A (en) * 1976-04-08 1977-10-18 Caterpillar Tractor Co. Engine port bridging
US4308002A (en) * 1979-10-25 1981-12-29 Alfonso Di Stefano Wankel-type engine with semi-circular sectional configuration for chamber end surface
US4386890A (en) * 1981-02-02 1983-06-07 Curtiss-Wright Corporation Delivery valve assembly, especially for rotary compressors
JPS59194035A (en) * 1983-04-19 1984-11-02 Mazda Motor Corp Exhaust port structure in rotary piston engine
GB2184682B (en) * 1985-12-20 1989-10-11 Tanazawa Hakkosha Kk Plastics shaping mould and method of preparing a plastics shaping mould

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075505A (en) * 1959-04-23 1963-01-29 Nsu Motorenwerke Ag Port construction for rotary combustion engine
US3103208A (en) * 1960-06-07 1963-09-10 Curtiss Wright Corp Intake port construction for rotary mechanisms
JP2720904B2 (en) * 1990-08-31 1998-03-04 富士通株式会社 Self-describing database management system configuration method and development / modification method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003558A1 (en) * 1984-12-10 1986-06-19 Bryan John Davies Rotary engine with external combustion chamber
EP2642069A3 (en) * 2012-03-22 2016-01-06 Pratt & Whitney Canada Corp. Port for rotary internal combustion engine

Also Published As

Publication number Publication date
DE1601837B1 (en) 1971-10-21
US3448727A (en) 1969-06-10
FR1557378A (en) 1969-02-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee