JPS57129241A - Device for controlling throttle valve of engine - Google Patents

Device for controlling throttle valve of engine

Info

Publication number
JPS57129241A
JPS57129241A JP56014414A JP1441481A JPS57129241A JP S57129241 A JPS57129241 A JP S57129241A JP 56014414 A JP56014414 A JP 56014414A JP 1441481 A JP1441481 A JP 1441481A JP S57129241 A JPS57129241 A JP S57129241A
Authority
JP
Japan
Prior art keywords
piston valve
tappet
cam
pulse signal
cam groove
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.)
Pending
Application number
JP56014414A
Other languages
Japanese (ja)
Inventor
Kazuhiko Nomura
Yasunari Kawai
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
Priority to JP56014414A priority Critical patent/JPS57129241A/en
Publication of JPS57129241A publication Critical patent/JPS57129241A/en
Pending 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
    • F02M9/00—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position
    • F02M9/02—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage
    • F02M9/06—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage with means for varying cross-sectional area of fuel spray nozzle dependent on throttle position

Landscapes

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

Abstract

PURPOSE:To make it possible to perform the control of the throttle valve of a motor bicycle in which the control is not hindered by variations in the suction negative pressure by lifting and lowering a piston valve at a rotational angle corresponding to an electrical signal. CONSTITUTION:When a pulse signal is outputted automatically to a pulse motor 31 by a manual operation of a driver who drives a motor bicycle or in accordance with the travelling state such as a load or the like, a control plate 32 rotates in accordance with the pulse signal, and a piston valve 23 of a suction trunk ascends and descends by the cam operation through a tappet 27 inserted into a cam groove 34. That is, in correspondence to the polarity of the pulse signal, the control plate rotates in either of normal and reverse directions, and a rotational angle corresponding to the pulse number can be obtained. On the other hand, since the tappet 27 of the piston valve 23 is in contact with the cam surface of the cam groove 34 in a substantially intersecting manner, even when an axial force acts on the piston valve 23 by the variations and the like of the suction negative pressure, the tappet 27 and the cam surface of the cam groove 34 are accurately engaged with each other, whereby the piston valve 23 does not float.
JP56014414A 1981-02-04 1981-02-04 Device for controlling throttle valve of engine Pending JPS57129241A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56014414A JPS57129241A (en) 1981-02-04 1981-02-04 Device for controlling throttle valve of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56014414A JPS57129241A (en) 1981-02-04 1981-02-04 Device for controlling throttle valve of engine

Publications (1)

Publication Number Publication Date
JPS57129241A true JPS57129241A (en) 1982-08-11

Family

ID=11860368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56014414A Pending JPS57129241A (en) 1981-02-04 1981-02-04 Device for controlling throttle valve of engine

Country Status (1)

Country Link
JP (1) JPS57129241A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831211A1 (en) * 2001-10-19 2003-04-25 Peugeot Motocycles Sa Intake throttle for scooter internal combustion engine tubular duct has sprung slide with actuator to retract it from flow bore
US7399210B2 (en) 2003-06-24 2008-07-15 Yamaha Marine Kabushiki Kaisha Reverse operation control for watercraft

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476727A (en) * 1977-11-30 1979-06-19 Yamaha Motor Co Ltd Device of operating throttle valve in internal combustion engine
JPS55117044A (en) * 1980-01-19 1980-09-09 Yamaha Motor Co Ltd Vehicle speed control method and device thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476727A (en) * 1977-11-30 1979-06-19 Yamaha Motor Co Ltd Device of operating throttle valve in internal combustion engine
JPS55117044A (en) * 1980-01-19 1980-09-09 Yamaha Motor Co Ltd Vehicle speed control method and device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831211A1 (en) * 2001-10-19 2003-04-25 Peugeot Motocycles Sa Intake throttle for scooter internal combustion engine tubular duct has sprung slide with actuator to retract it from flow bore
US7399210B2 (en) 2003-06-24 2008-07-15 Yamaha Marine Kabushiki Kaisha Reverse operation control for watercraft

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