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JPS56143336A - Purging device for fuel vapor adsorbing apparatus - Google Patents

Purging device for fuel vapor adsorbing apparatus

Info

Publication number
JPS56143336A
JPS56143336A JP4597080A JP4597080A JPS56143336A JP S56143336 A JPS56143336 A JP S56143336A JP 4597080 A JP4597080 A JP 4597080A JP 4597080 A JP4597080 A JP 4597080A JP S56143336 A JPS56143336 A JP S56143336A
Authority
JP
Japan
Prior art keywords
fuel vapor
diaphragm
intake
conduit
chamber
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
JP4597080A
Other languages
Japanese (ja)
Inventor
Yukio Suzuki
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP4597080A priority Critical patent/JPS56143336A/en
Publication of JPS56143336A publication Critical patent/JPS56143336A/en
Pending legal-status Critical Current

Links

Landscapes

  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)

Abstract

PURPOSE: To prevent air fuel ratio from being much fluctuated by intake of fuel vapor into an intake system, by purging the fuel vapor adsorbed to a fuel vapor adsorbing apparatus by negative pressure approximately proportional to intake air flow and sucking said fuel vapor into the intake system.
CONSTITUTION: A fuel vapor adsorbing apparatus 10 such as charcoal canister is connected to the upper space of a fuel tank 7 through a conduit 11, and a fuel vapor taking-out port 13 of said apparatus is connected to an intake manifold 3 through a checkvalve 14, conduits 15, 17 and controlling valve 16. The controlling valve 16 is provided with a chamber 21 defined by the first diaphragm 19 and partition 22 and a valve element 24 to open and close a valve port 23 for connecting this chamber 21 to the conduit 17. While the valve element 24 is connected to the diaphragm 19, it is connected to the second diaphragm 26 through a rod 25. The diaphragm 26 defines a back pressure chamber 27 into which is introduced exhaust pressure in an exhaust manifold 4 through a conduit 28.
COPYRIGHT: (C)1981,JPO&Japio
JP4597080A 1980-04-07 1980-04-07 Purging device for fuel vapor adsorbing apparatus Pending JPS56143336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4597080A JPS56143336A (en) 1980-04-07 1980-04-07 Purging device for fuel vapor adsorbing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4597080A JPS56143336A (en) 1980-04-07 1980-04-07 Purging device for fuel vapor adsorbing apparatus

Publications (1)

Publication Number Publication Date
JPS56143336A true JPS56143336A (en) 1981-11-09

Family

ID=12734076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4597080A Pending JPS56143336A (en) 1980-04-07 1980-04-07 Purging device for fuel vapor adsorbing apparatus

Country Status (1)

Country Link
JP (1) JPS56143336A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216997A (en) * 1991-08-23 1993-06-08 Toyota Jidosha Kabushiki Kaisha Fuel supply control device of an engine
US5323751A (en) * 1990-07-13 1994-06-28 Toyota Jidosha Kabushiki Kaisha Device for controlling operation of fuel evaporative purge system of an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323751A (en) * 1990-07-13 1994-06-28 Toyota Jidosha Kabushiki Kaisha Device for controlling operation of fuel evaporative purge system of an internal combustion engine
US5216997A (en) * 1991-08-23 1993-06-08 Toyota Jidosha Kabushiki Kaisha Fuel supply control device of an engine

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