JPS5749049A - Air/fuel ratio compensation device in variable venturi carburetor - Google Patents

Air/fuel ratio compensation device in variable venturi carburetor

Info

Publication number
JPS5749049A
JPS5749049A JP12503680A JP12503680A JPS5749049A JP S5749049 A JPS5749049 A JP S5749049A JP 12503680 A JP12503680 A JP 12503680A JP 12503680 A JP12503680 A JP 12503680A JP S5749049 A JPS5749049 A JP S5749049A
Authority
JP
Japan
Prior art keywords
chamber
passage
throttle valve
fuel
air
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
JP12503680A
Other languages
Japanese (ja)
Inventor
Ken Mitsufuji
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP12503680A priority Critical patent/JPS5749049A/en
Publication of JPS5749049A publication Critical patent/JPS5749049A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To stabilize the air/fuel ratio over a wide range from warm-up operation to a high temperature state by controlling an amount of fuel led to a fuel level gauge section of a variable venturi carburetor in accordance with an engine temperature and the value of an air/fuel ratio.
CONSTITUTION: A float chamber 1 is communicated with a chamber 4 via a variable throttle valve 12, and chamber 4 is isolated from a pressure control chamber 5 by means of a diaphragm 6. A fuel passage 7 is installed in communication with chamber 4, and the far end of passage 7 is opened to a venturi section 11 through a fuel level gauge section 8 constituted in combination with a needle 13a actuated by a suction piston 13. Further, the pressure control chamber 5 is communicated via a passage 9a and a variable throttle valve 9 with the upstream location of venturi section 11, and also communicated with venturi section 11 via a passage 10a and a fixed throttle valve 10. Variable throttle valve 9 is controlled via a control circuit 106 with outputs of an O2 sensor and the engine temperature sensor installed in an exhaust system.
COPYRIGHT: (C)1982,JPO&Japio
JP12503680A 1980-09-09 1980-09-09 Air/fuel ratio compensation device in variable venturi carburetor Pending JPS5749049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12503680A JPS5749049A (en) 1980-09-09 1980-09-09 Air/fuel ratio compensation device in variable venturi carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12503680A JPS5749049A (en) 1980-09-09 1980-09-09 Air/fuel ratio compensation device in variable venturi carburetor

Publications (1)

Publication Number Publication Date
JPS5749049A true JPS5749049A (en) 1982-03-20

Family

ID=14900251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12503680A Pending JPS5749049A (en) 1980-09-09 1980-09-09 Air/fuel ratio compensation device in variable venturi carburetor

Country Status (1)

Country Link
JP (1) JPS5749049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207266A (en) * 1992-01-03 1993-05-04 Chuetsu Metal Works Co., Ltd. Water-cooled copper casting mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207266A (en) * 1992-01-03 1993-05-04 Chuetsu Metal Works Co., Ltd. Water-cooled copper casting mold

Similar Documents

Publication Publication Date Title
JPS55160135A (en) Suction air controller
JPS5756643A (en) Intake air flow rate control device of internal combustion engine
JPS5756644A (en) Intake air flow control device of internal combustion engine
JPS5554658A (en) Electronic controller for internal-combustion engine
JPS5474914A (en) Secondary air supply control apparatus
JPS5459527A (en) Air-fuel ratio controller for engine
JPS5749049A (en) Air/fuel ratio compensation device in variable venturi carburetor
JPS5525518A (en) Electronic controlling device for carbureter
JPS555407A (en) Air-fuel ratio controller for lpg engine
JPS55109752A (en) Electronic control system for compensating air to fuel ratio in high altitude
JPS5575542A (en) Fuel feeding apparatus
JPS5450728A (en) Variable venturi type carburetor
JPS5746052A (en) Air-fuel ratio control device of carburetor
JPS5759046A (en) Air fuel ratio control device
JPS5491635A (en) Starter carburetor controller for autobicycle
JPS5517673A (en) Gas mixture feeder
JPS5759047A (en) Diaphragm type carburetor
JPS5756642A (en) Air-fuel ratio control of internal combustion engine
JPS5598641A (en) Controlling device for volume ratio of air to fuel
JPS56115843A (en) Recirculating device of blow-byegas in internal combustion engine
JPS55156242A (en) Exhaust gas recycling controller of internal combustion engine
JPS54132024A (en) Fuel supply regulator
JPS5569739A (en) Suction air flow control device for internal combustion engine
JPS5756650A (en) Carburettor of internal combustion engine
JPS57108422A (en) Controller for flow rate of fuel for engine