GB1446467A - Carburettor for internal combustion engines - Google Patents

Carburettor for internal combustion engines

Info

Publication number
GB1446467A
GB1446467A GB5362773A GB5362773A GB1446467A GB 1446467 A GB1446467 A GB 1446467A GB 5362773 A GB5362773 A GB 5362773A GB 5362773 A GB5362773 A GB 5362773A GB 1446467 A GB1446467 A GB 1446467A
Authority
GB
United Kingdom
Prior art keywords
passage
groove
valve
fuel
shaft
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
GB5362773A
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Publication of GB1446467A publication Critical patent/GB1446467A/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
    • F02M3/00—Idling devices for carburettors
    • F02M3/08—Other details of idling devices
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/55—Reatomizers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

1446467 Spray carburetters YAMAHA HATSUDOKI KK 19 Nov 1973 [24 Nov 1972] 53627/73 Heading F1B Liquid fuel from an idling port 31 opening to the substantially horizontal induction passage adjacent the upper edge of the minimally open butterfly throttle valve 7 is prevented from flowing along the upper part of the induction passage wall to the downstream end of the passage and directed downwardly to the junctions between the valve shaft 33 and the passage wall. From the junctions the fuel is directed on to the lower part of the valve 7 to flow downwardly and be entrained by air-flowing through the clearance 42 between the lower part of the valve and the passage wall. In the embodiment shown a groove 36 collects the liquid fuel which flows down the groove to be deflected by the surfaces 40 formed on the valve shaft 33 on either side of a flat 39B. The upper portion of the groove (36A), Fig. 5 (not shown), may have an upstream side wall extending in a curve from the induction passage wall to the base (136B) of the groove. The groove may lead to bores (64), Fig. 6 (not shown), extending through the valve shaft 33. A partcylindrical member (36B, 36C), Figs. 7 and 8 (not shown), may be inserted in the upper part of the induction passage 3 downstream of the port 31 and define a fuel guiding plain or concave surface (136D, 136E) leading to the shaft deflecting surfaces 40. The deflecting surfaces associated with the throttle valve (7A), Figs. 9 and 10 (not shown), may be defined in part by shaft surfaces (54) and in part by crescent shaped plate members (55) on the downstream face of the valve. A groove (58), Figs. 11 to 14 (not shown), in the induction passage wall and the concave upstream end (60) of a part-cylindrical insert (136G) in the passage may define a fuel passage having an upstream opening (36E) of decreasing width over the portion of the fuel passage extending from the uppermost part of the passage, the passage being closed at the lower end portions extending to deflecting surfaces (62) on the valve shaft (61).
GB5362773A 1972-11-24 1973-11-19 Carburettor for internal combustion engines Expired GB1446467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972134551U JPS528883Y2 (en) 1972-11-24 1972-11-24

Publications (1)

Publication Number Publication Date
GB1446467A true GB1446467A (en) 1976-08-18

Family

ID=15130948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5362773A Expired GB1446467A (en) 1972-11-24 1973-11-19 Carburettor for internal combustion engines

Country Status (4)

Country Link
US (1) US3867487A (en)
JP (1) JPS528883Y2 (en)
DE (1) DE2358477A1 (en)
GB (1) GB1446467A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044080A (en) * 1973-12-28 1977-08-23 Yamaha Hatsudoki Kabushiki Kaisha Carburetor
IT1041819B (en) * 1974-08-12 1980-01-10 Yamaha Motor Co Ltd METHOD FOR SET-UP OF A FOUR-STROKE INTERNAL COMBUSTION ENGINE
JPS6135720Y2 (en) * 1980-08-26 1986-10-17
US5874028A (en) * 1997-08-11 1999-02-23 Liang; Shih-Chuan Structural improvement on a carburetor for motorcycles
US6499726B2 (en) * 1999-11-04 2002-12-31 Tecumseh Products Company Engine having carburetor with bridge circuit
JP2001140700A (en) * 1999-11-15 2001-05-22 Nippon Walbro:Kk Rotary throttle valve type carburetor
US6299144B1 (en) * 2000-03-07 2001-10-09 Marc W. Salvisberg Carburetor device with additional air-fuel flow apertures
US8186323B2 (en) * 2007-07-26 2012-05-29 Nissan Motor Co., Ltd. Intake air noise adjuster

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1625572A (en) * 1918-09-04 1927-04-19 Albert G Dickinson Carburetor
US1580634A (en) * 1921-04-02 1926-04-13 Ball And Ball Carburetor Compa Reatomizer
US1785501A (en) * 1928-02-17 1930-12-16 Advance Rumely Co Method of and apparatus for reatomizing fuel
US2328736A (en) * 1939-11-24 1943-09-07 Bendix Aviat Corp Nonicing throttle
FR95004E (en) * 1965-12-30 1970-03-27 Rene Bouteleux Device for homogenizing in a balanced way the mixtures of air and liquid fuel in internal combustion engines.
US3393984A (en) * 1967-02-14 1968-07-23 Franklin O. Wisman Fuel system components

Also Published As

Publication number Publication date
JPS4989524U (en) 1974-08-02
DE2358477A1 (en) 1974-06-12
US3867487A (en) 1975-02-18
JPS528883Y2 (en) 1977-02-24

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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