JPS57105536A - Exhaust gas purifying apparatus for internal combustion engine - Google Patents

Exhaust gas purifying apparatus for internal combustion engine

Info

Publication number
JPS57105536A
JPS57105536A JP55181207A JP18120780A JPS57105536A JP S57105536 A JPS57105536 A JP S57105536A JP 55181207 A JP55181207 A JP 55181207A JP 18120780 A JP18120780 A JP 18120780A JP S57105536 A JPS57105536 A JP S57105536A
Authority
JP
Japan
Prior art keywords
exhaust gas
inner diameter
control valve
manifold
purifying apparatus
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
JP55181207A
Other languages
Japanese (ja)
Inventor
Kaoru Uno
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 JP55181207A priority Critical patent/JPS57105536A/en
Publication of JPS57105536A publication Critical patent/JPS57105536A/en
Pending legal-status Critical Current

Links

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE: To simplify the structure of an exhaust gas purifying apparatus including an exhaust gas recirculating system, by providing an exhaust gas recirculating pipe connected to a recirculation control valve, communicating the pipe to a secondary-air supply pipe, and selecting the inner diameter of the pipes to be smaller than that of a jet of the recirculation control valve.
CONSTITUTION: An exhaust gas recirculating pipe 10 having an inner diameter D10 is communicated to an air cleaner 15 via a secondary-air supply pipe 11 having an inner diameter D11. Here, the inner diameter D10 or D11 is selected to be smaller than that D13 of a control jet 13 of a valve 7 for controlling recirculation of exhaust gas. Since a throttle valve 5 is closed, for instance, at the time of idling operation of an engine, a port 22 is communicated to the atmospheric pressure, so that the control valve 7 is closed. Resultantly, secondary air introduced from the air cleaner 15 is carried into a manifold 3. Subsequently, when the throttle valve 5 is opened, exhaust gas and secondary air are both passed through the control valve 7 and drawn into a manifold 2. However, since the inner diameter D13 is greater than that D10 or D11 as described above, secondary air is prevented from entering into the manifold 3.
COPYRIGHT: (C)1982,JPO&Japio
JP55181207A 1980-12-23 1980-12-23 Exhaust gas purifying apparatus for internal combustion engine Pending JPS57105536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55181207A JPS57105536A (en) 1980-12-23 1980-12-23 Exhaust gas purifying apparatus for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55181207A JPS57105536A (en) 1980-12-23 1980-12-23 Exhaust gas purifying apparatus for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57105536A true JPS57105536A (en) 1982-07-01

Family

ID=16096697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55181207A Pending JPS57105536A (en) 1980-12-23 1980-12-23 Exhaust gas purifying apparatus for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57105536A (en)

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