JPS5752637A - Supercharging pressure control device for engine equipped with supercharger - Google Patents

Supercharging pressure control device for engine equipped with supercharger

Info

Publication number
JPS5752637A
JPS5752637A JP55128965A JP12896580A JPS5752637A JP S5752637 A JPS5752637 A JP S5752637A JP 55128965 A JP55128965 A JP 55128965A JP 12896580 A JP12896580 A JP 12896580A JP S5752637 A JPS5752637 A JP S5752637A
Authority
JP
Japan
Prior art keywords
voltage
exhaust gas
output
gas temperature
electromagnetic valve
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
JP55128965A
Other languages
Japanese (ja)
Other versions
JPS5918531B2 (en
Inventor
Asao Tadokoro
Haruo Okimoto
Ikuo Matsuda
Masato Iwaki
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP55128965A priority Critical patent/JPS5918531B2/en
Publication of JPS5752637A publication Critical patent/JPS5752637A/en
Publication of JPS5918531B2 publication Critical patent/JPS5918531B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Supercharger (AREA)

Abstract

PURPOSE: To achieve sufficient effciency and to prevent heat deterioration of parts such as a catalyzer in an exhaust system by providing a control device which reduces supercharged pressure in response to the output of an exhaust gas temperature sensor. When the exhaust gas temperature is higher than the predetermined value.
CONSTITUTION: A controller 14 is provided, together with a comparator 14a, a set voltage generator 14b and an electromagnetic valve driving circuit 14c, which make response to the output of exhaust gas temperature sensor 12 to reduce the supercharged pressure when the exhaust gas temperature is higher than the predetermined temperature. The output from a temperature sensor 12 is led to the comparator circuit 14a in form of a voltage signal A in proportion to the exhaust gas temperature. Hereupon, since the set voltage takes the form of a constant voltage B, the comparator 14a compairs the voltage A with the voltage B and the output voltage C is generated when the signal A is higher than the signal B. Then, this output is fed into the circuit 14c, where the electromagnetic valve driving voltage D is generated, an electromagnetic valve 11 is opened, then a part of exhaust is led to by-pass 10. Consequently, the supercharged pressure is lowered from the condition represented by a straight line E to that by F, because the driving power of a supercharger 8 is lowered.
COPYRIGHT: (C)1982,JPO&Japio
JP55128965A 1980-09-17 1980-09-17 Boost pressure control device for supercharged engines Expired JPS5918531B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55128965A JPS5918531B2 (en) 1980-09-17 1980-09-17 Boost pressure control device for supercharged engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55128965A JPS5918531B2 (en) 1980-09-17 1980-09-17 Boost pressure control device for supercharged engines

Publications (2)

Publication Number Publication Date
JPS5752637A true JPS5752637A (en) 1982-03-29
JPS5918531B2 JPS5918531B2 (en) 1984-04-27

Family

ID=14997787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55128965A Expired JPS5918531B2 (en) 1980-09-17 1980-09-17 Boost pressure control device for supercharged engines

Country Status (1)

Country Link
JP (1) JPS5918531B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052351U (en) * 1983-09-19 1985-04-12 ダイハツ工業株式会社 Boost pressure control device for supercharged engines
US5297532A (en) * 1991-10-16 1994-03-29 Honda Giken Kogyo Kabushiki Kaisha Supercharging pressure control system for supercharged internal combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052351U (en) * 1983-09-19 1985-04-12 ダイハツ工業株式会社 Boost pressure control device for supercharged engines
US5297532A (en) * 1991-10-16 1994-03-29 Honda Giken Kogyo Kabushiki Kaisha Supercharging pressure control system for supercharged internal combustion engines

Also Published As

Publication number Publication date
JPS5918531B2 (en) 1984-04-27

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