JPS5442524A - Suction device of engine - Google Patents

Suction device of engine

Info

Publication number
JPS5442524A
JPS5442524A JP10849177A JP10849177A JPS5442524A JP S5442524 A JPS5442524 A JP S5442524A JP 10849177 A JP10849177 A JP 10849177A JP 10849177 A JP10849177 A JP 10849177A JP S5442524 A JPS5442524 A JP S5442524A
Authority
JP
Japan
Prior art keywords
throttle valve
sub
diaphgram
negative pressure
spring
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.)
Granted
Application number
JP10849177A
Other languages
Japanese (ja)
Other versions
JPS6217092B2 (en
Inventor
Hiromitsu Matsumoto
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 JP10849177A priority Critical patent/JPS5442524A/en
Publication of JPS5442524A publication Critical patent/JPS5442524A/en
Publication of JPS6217092B2 publication Critical patent/JPS6217092B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To open and close a valve directly under the control of suction negative pressure by designing a sub-throttle valve to be opened continuously.
CONSTITUTION: A continuously opened sub-throttle valve 40 is equipped in the downstream of a main throttle valve 34, which only closes in low-load operation. When a suction negative pressure is zero or smaller than a specified value, a diaphgram 44 is displaced downwards by a spring 52 and the sub- throttle valve 40 connected to the diaphgram is kept open. So, the spring 52 used for a diaphgram can be also applied as a spring of a continuously opened sub- throttle valve 40. when a suction negative pressure increases over a specified value in low negative pressure operation involving idiling, the diaphgram 44 moves upwards and the connected sub-throttle valve 40 is closed.
COPYRIGHT: (C)1979,JPO&Japio
JP10849177A 1977-09-09 1977-09-09 Suction device of engine Granted JPS5442524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10849177A JPS5442524A (en) 1977-09-09 1977-09-09 Suction device of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10849177A JPS5442524A (en) 1977-09-09 1977-09-09 Suction device of engine

Publications (2)

Publication Number Publication Date
JPS5442524A true JPS5442524A (en) 1979-04-04
JPS6217092B2 JPS6217092B2 (en) 1987-04-16

Family

ID=14486108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10849177A Granted JPS5442524A (en) 1977-09-09 1977-09-09 Suction device of engine

Country Status (1)

Country Link
JP (1) JPS5442524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038126U (en) * 1983-08-25 1985-03-16 トヨタ自動車株式会社 Multi-cylinder internal combustion engine equipped with an intake port with a valve for generating biased flow

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916607U (en) * 1972-05-22 1974-02-12
JPS4965410A (en) * 1972-09-15 1974-06-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916607U (en) * 1972-05-22 1974-02-12
JPS4965410A (en) * 1972-09-15 1974-06-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038126U (en) * 1983-08-25 1985-03-16 トヨタ自動車株式会社 Multi-cylinder internal combustion engine equipped with an intake port with a valve for generating biased flow
JPH0320502Y2 (en) * 1983-08-25 1991-05-02

Also Published As

Publication number Publication date
JPS6217092B2 (en) 1987-04-16

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