JPS5569716A - Secondary air controlling apparatus - Google Patents

Secondary air controlling apparatus

Info

Publication number
JPS5569716A
JPS5569716A JP14225679A JP14225679A JPS5569716A JP S5569716 A JPS5569716 A JP S5569716A JP 14225679 A JP14225679 A JP 14225679A JP 14225679 A JP14225679 A JP 14225679A JP S5569716 A JPS5569716 A JP S5569716A
Authority
JP
Japan
Prior art keywords
acted
control valve
engine
chambers
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.)
Granted
Application number
JP14225679A
Other languages
Japanese (ja)
Other versions
JPS5732722B2 (en
Inventor
Toyotane Shimada
Hideo Unno
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors 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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP14225679A priority Critical patent/JPS5569716A/en
Publication of JPS5569716A publication Critical patent/JPS5569716A/en
Publication of JPS5732722B2 publication Critical patent/JPS5732722B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE: To prevent after-burning and other problems of an engine of the type in which supply of secondary air is effected by the use of pulsation of exhaust gas flow, by providing a control valve which is closed when differential pressure acted in two chambers of a differential pressure responsive means exceeds a predetermined value at the time of decelerating engine.
CONSTITUTION: During steady operation of engine, control valve 11 is kept in its opened position by spring 18 since pressure acted in chambers 15, 16 of diaphragm means 13 communicated to the intake passage via vacuum passage 17 is balanced with each other, so that secondary air is passed from air inlet passage 9 to outlet passage 10 through a reed valve 6 that is opened by the function of pulsation of exhaust gas flow and then furnished to the exhaust system. At the time of decelerating engine, on the other hand, diaphragm 14 is displaced to the left in the drawing and control valve 11 is resultantly closed, since a relatively high vacuum is acted directly in chamber 15 whereas it is acted in chamber 16 with some delay through orifice 20. Thereafter, when suction vacuum acted in chamber 16 is increased and pressure in these two chambers 15, 16 is balanced, control valve 11 is opened again.
COPYRIGHT: (C)1980,JPO&Japio
JP14225679A 1979-11-02 1979-11-02 Secondary air controlling apparatus Granted JPS5569716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14225679A JPS5569716A (en) 1979-11-02 1979-11-02 Secondary air controlling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14225679A JPS5569716A (en) 1979-11-02 1979-11-02 Secondary air controlling apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50109817A Division JPS5234118A (en) 1975-09-09 1975-09-09 Secondary air controlling device

Publications (2)

Publication Number Publication Date
JPS5569716A true JPS5569716A (en) 1980-05-26
JPS5732722B2 JPS5732722B2 (en) 1982-07-13

Family

ID=15311083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14225679A Granted JPS5569716A (en) 1979-11-02 1979-11-02 Secondary air controlling apparatus

Country Status (1)

Country Link
JP (1) JPS5569716A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870017A (en) * 1981-10-21 1983-04-26 Suzuki Motor Co Ltd Secondary air supplying apparatus in apparatus for purifying exhaust gas
JPS5870018A (en) * 1981-10-21 1983-04-26 Suzuki Motor Co Ltd Secondary air supplying apparatus in apparatus for purifying exhaust gas

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653212A (en) * 1970-10-30 1972-04-04 Gen Motors Corp Exhaust emission control system
JPS5085712A (en) * 1973-12-08 1975-07-10

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653212A (en) * 1970-10-30 1972-04-04 Gen Motors Corp Exhaust emission control system
JPS5085712A (en) * 1973-12-08 1975-07-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870017A (en) * 1981-10-21 1983-04-26 Suzuki Motor Co Ltd Secondary air supplying apparatus in apparatus for purifying exhaust gas
JPS5870018A (en) * 1981-10-21 1983-04-26 Suzuki Motor Co Ltd Secondary air supplying apparatus in apparatus for purifying exhaust gas

Also Published As

Publication number Publication date
JPS5732722B2 (en) 1982-07-13

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