GB1417227A - Two-stroke internal combustion engine - Google Patents

Two-stroke internal combustion engine

Info

Publication number
GB1417227A
GB1417227A GB3780473A GB3780473A GB1417227A GB 1417227 A GB1417227 A GB 1417227A GB 3780473 A GB3780473 A GB 3780473A GB 3780473 A GB3780473 A GB 3780473A GB 1417227 A GB1417227 A GB 1417227A
Authority
GB
United Kingdom
Prior art keywords
crank
chamber
passage
bearing
engine
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
GB3780473A
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.)
Brunswick Corp
Original Assignee
Brunswick Corp
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 Brunswick Corp filed Critical Brunswick Corp
Publication of GB1417227A publication Critical patent/GB1417227A/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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
    • F02M33/02—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel
    • F02M33/04—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the intake passage
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

1417227 Two-stroke engines BRUNSWICK CORP 9 Aug 1973 [14 Aug 1972] 37804/73 Heading F1B Petrol and oil mixture collecting in one of the crank-chambers 23 of the crank-case 21 is delivered to one of the crank-shaft bearings 25, the arrangement being such that the proportion of the collected mixture flowing to the bearing increases with increase in engine speed. The conduits 30 and 32 connected to the crank-chamber 23 and bearing cover 39 respectively are connected by a fitting 31 having a passage 37 opening to the transfer passage 28 from the other crank-chamber 21 to the associated cylinder 12. The diameters of the passages 33, 35, 37 and a passage (40), Fig. 5 (not shown), in a pipe (38) connecting the conduit 36 to the cover 39 are such that with the pressure changes which occur in the passage 28 and the chamber 23 all or most of the collected mixture flows into the passage 28 when the engine is idling and as the engine speed increases an increasing proportion flows to the bearing 25. In an engine with vertical cylinders the crank-case is arranged so that petrol and oil mixture collects in one crankcase chamber and is used to lubricate a bearing or bearings not associated with the one chamber.
GB3780473A 1972-08-14 1973-08-09 Two-stroke internal combustion engine Expired GB1417227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00280462A US3805751A (en) 1972-08-14 1972-08-14 Drainage system for two-cycle engine

Publications (1)

Publication Number Publication Date
GB1417227A true GB1417227A (en) 1975-12-10

Family

ID=23073195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3780473A Expired GB1417227A (en) 1972-08-14 1973-08-09 Two-stroke internal combustion engine

Country Status (9)

Country Link
US (1) US3805751A (en)
JP (1) JPS5249536B2 (en)
AU (1) AU475258B2 (en)
BE (1) BE803607A (en)
CA (1) CA989314A (en)
DE (1) DE2340934C3 (en)
GB (1) GB1417227A (en)
IT (1) IT990229B (en)
SE (1) SE400808B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195600A (en) * 1976-04-15 1980-04-01 Yamaha Hatsudoki Kabushiki Kaisha Crankcase chamber compression type two cycle internal combustion engines
JPS52154063U (en) * 1976-05-19 1977-11-22
US4121551A (en) * 1976-07-28 1978-10-24 Outboard Marine Corporation Drain recycle system for two-cycle engine
US4599979A (en) * 1984-08-09 1986-07-15 Outboard Marine Corporation Upper crankshaft bearing lubrication system for two-cycle engine
US4590897A (en) * 1984-11-13 1986-05-27 Brunswick Corp. Idle fuel residual storage system
US4820213A (en) * 1987-10-05 1989-04-11 Outboard Marine Corporation Fuel residual handling system
US4890587A (en) * 1988-01-29 1990-01-02 Outboardmarine Corporation Fuel residual handling system
US4836152A (en) * 1988-02-19 1989-06-06 Brunswick Corporation Exhaust heated crankcase for 2-cycle marine engine
US4846136A (en) * 1988-02-26 1989-07-11 Brunswick Corporation Exhaust heated induction air for two-cycle engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR541953A (en) * 1921-10-04 1922-08-04 Lubricating device for two-stroke engines
US1606424A (en) * 1924-04-03 1926-11-09 Johnson Bros Engineering Corp Oiling system for gas engines
US3132635A (en) * 1962-07-30 1964-05-12 Outboard Marine Corp Internal combustion engine with crankcase compression
US3395679A (en) * 1966-08-17 1968-08-06 Brunswick Corp Two-cycle engine and cylinder block therefor

Also Published As

Publication number Publication date
JPS5249536B2 (en) 1977-12-17
JPS4951430A (en) 1974-05-18
DE2340934B2 (en) 1978-01-26
DE2340934C3 (en) 1978-09-28
AU475258B2 (en) 1976-08-19
BE803607A (en) 1973-12-03
SE400808B (en) 1978-04-10
US3805751A (en) 1974-04-23
CA989314A (en) 1976-05-18
AU5837473A (en) 1975-01-23
IT990229B (en) 1975-06-20
DE2340934A1 (en) 1974-02-28

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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