JPS5593919A - Secondary air feeder for exhaust turbo-charged engine - Google Patents

Secondary air feeder for exhaust turbo-charged engine

Info

Publication number
JPS5593919A
JPS5593919A JP256879A JP256879A JPS5593919A JP S5593919 A JPS5593919 A JP S5593919A JP 256879 A JP256879 A JP 256879A JP 256879 A JP256879 A JP 256879A JP S5593919 A JPS5593919 A JP S5593919A
Authority
JP
Japan
Prior art keywords
secondary air
impeller
exhaust
port
exhaust gas
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
JP256879A
Other languages
Japanese (ja)
Other versions
JPS5918528B2 (en
Inventor
Akira Takamatsu
Norio Morimoto
Yasusada Masamoto
Hiroshi Munetoki
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.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu 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 Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP256879A priority Critical patent/JPS5918528B2/en
Publication of JPS5593919A publication Critical patent/JPS5593919A/en
Publication of JPS5918528B2 publication Critical patent/JPS5918528B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Supercharger (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE: To surely feed a prescribed quantity of secondary air in total range of load, by connecting a secondary air feed passage fitted with a check valve, to a port provided in a part facing the peripheral part of the exhaust side of impeller of an exhaust turbine.
CONSTITUTION: Since impulse takes place at the time of entry of exhaust gas into the gap between the vanes of impeller 5' of an exhaust turbine 5 or reaction takes place at the time of leaving of the exhaust gas from the gap between the vanes, a region of negative pressure lower than the atmospheric pressure is produced on the back of each vane by the flow of the exhaust gas on the front of the vane and the rotation of the impeller 5'. The region of negative pressure faces a port 17 provided in a part around the impeller 5' and causes pulsation because the rotation of the impeller. Only when the pressure in the port 17 is negative, a check valve 20 is opened to repeatedly suck secondary air from a secondary air feed passage 19 to sequentially supply the secondary air to an exhaust system.
COPYRIGHT: (C)1980,JPO&Japio
JP256879A 1979-01-11 1979-01-11 Secondary air supply device for exhaust turbocharged engine Expired JPS5918528B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP256879A JPS5918528B2 (en) 1979-01-11 1979-01-11 Secondary air supply device for exhaust turbocharged engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP256879A JPS5918528B2 (en) 1979-01-11 1979-01-11 Secondary air supply device for exhaust turbocharged engine

Publications (2)

Publication Number Publication Date
JPS5593919A true JPS5593919A (en) 1980-07-16
JPS5918528B2 JPS5918528B2 (en) 1984-04-27

Family

ID=11532965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP256879A Expired JPS5918528B2 (en) 1979-01-11 1979-01-11 Secondary air supply device for exhaust turbocharged engine

Country Status (1)

Country Link
JP (1) JPS5918528B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5105620A (en) * 1990-02-28 1992-04-21 Nissan Motor Co., Ltd. Secondary air supply system for supercharged engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5105620A (en) * 1990-02-28 1992-04-21 Nissan Motor Co., Ltd. Secondary air supply system for supercharged engine

Also Published As

Publication number Publication date
JPS5918528B2 (en) 1984-04-27

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