JPS55119939A - Fuel feeding device - Google Patents

Fuel feeding device

Info

Publication number
JPS55119939A
JPS55119939A JP2576479A JP2576479A JPS55119939A JP S55119939 A JPS55119939 A JP S55119939A JP 2576479 A JP2576479 A JP 2576479A JP 2576479 A JP2576479 A JP 2576479A JP S55119939 A JPS55119939 A JP S55119939A
Authority
JP
Japan
Prior art keywords
nozzle
negative pressure
fuel
flow rate
resistance member
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
JP2576479A
Other languages
Japanese (ja)
Inventor
Masafumi Nakayama
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP2576479A priority Critical patent/JPS55119939A/en
Publication of JPS55119939A publication Critical patent/JPS55119939A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make manufacturing and idle adjusting easy by forming the needle straight tapered and compensating air-fuel ratio on the small flow rate range by changing the shape of the suction air measuring part of the fuel feeding device of the constant negative pressure carburetor type.
CONSTITUTION: The conical-shaped resistance member 4 to control negative pressure in the constant negative pressure chamber 27 at the bottom of the throat part 2 of the suction passage 1 almost constant corresponding to the suction air rate is provided to the throat part 2 of the suction passage 1. Also, at the downstream side of the resistance member 4, the fuel nozzle 19 which is connected to the float chamber 23 through the fuel passage 24 is provided, and the top of the straight- tapered needle 17 which is fixed at the resistance member 4 at it's base end is inserted into the nozzle 19. The said nozzle 19 is slidably fitted in the holding cylinder 29 to adjust the initial valve of the nozzle effective area. Also, by forming the annular concave part 31 as the compensating mechanism along the lower peripheral surface of the throat part 2, the flow rate characteristics of suction air in the small flow rate range can be made variable.
COPYRIGHT: (C)1980,JPO&Japio
JP2576479A 1979-03-06 1979-03-06 Fuel feeding device Pending JPS55119939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2576479A JPS55119939A (en) 1979-03-06 1979-03-06 Fuel feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2576479A JPS55119939A (en) 1979-03-06 1979-03-06 Fuel feeding device

Publications (1)

Publication Number Publication Date
JPS55119939A true JPS55119939A (en) 1980-09-16

Family

ID=12174896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2576479A Pending JPS55119939A (en) 1979-03-06 1979-03-06 Fuel feeding device

Country Status (1)

Country Link
JP (1) JPS55119939A (en)

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