JPS5510049A - Intake device for engine - Google Patents

Intake device for engine

Info

Publication number
JPS5510049A
JPS5510049A JP8285778A JP8285778A JPS5510049A JP S5510049 A JPS5510049 A JP S5510049A JP 8285778 A JP8285778 A JP 8285778A JP 8285778 A JP8285778 A JP 8285778A JP S5510049 A JPS5510049 A JP S5510049A
Authority
JP
Japan
Prior art keywords
negative pressure
valve
engine
intake
control 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.)
Pending
Application number
JP8285778A
Other languages
Japanese (ja)
Inventor
Kozo Iida
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 JP8285778A priority Critical patent/JPS5510049A/en
Publication of JPS5510049A publication Critical patent/JPS5510049A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/02—Cutting-out

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE:To raise the charging efficiency of another cylinder of a multicylinder internal combustion engine and increase its total output, by providing a control valve in an intake passage, closing the valve in the deceleration of the engine and compensating the degree of opening of the valve depending on the rotational frequency of the engine. CONSTITUTION:Throttle valves 7, 8 are provided in intake passages 4, 6 for cylinders 1, 2. The control valve 9 is provided in only the intake passage 4 under a communication hole 10 for both the intake passages 4, 6. The valve 9 is connected to a moving diaphragm unit 12 through levers 11, 13. The negative pressure chamber 12d of the diaphragm unit 12 is connected to the negative pressure chamber 16c of a controller 16, to which the intake negative pressure is transmitted through a negative pressure pipe 17. When the engine is decelerated, the control valve 9 is closed by the negative pressure transmitted through the pipe 17 and the negative pressure chambers 16c, 12d. Pressurized air is conducted from an air pump 18 into the negative pressure chamber 16c to change the degree of opening of the valve 9 in the range from a low speed to a high one.
JP8285778A 1978-07-06 1978-07-06 Intake device for engine Pending JPS5510049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8285778A JPS5510049A (en) 1978-07-06 1978-07-06 Intake device for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8285778A JPS5510049A (en) 1978-07-06 1978-07-06 Intake device for engine

Publications (1)

Publication Number Publication Date
JPS5510049A true JPS5510049A (en) 1980-01-24

Family

ID=13786018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8285778A Pending JPS5510049A (en) 1978-07-06 1978-07-06 Intake device for engine

Country Status (1)

Country Link
JP (1) JPS5510049A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824439U (en) * 1981-08-10 1983-02-16 マツダ株式会社 Multi-cylinder engine intake system
US4770512A (en) * 1984-12-18 1988-09-13 Olympus Optical Co., Ltd. Large aperture ratio wide-angle photographic lens system
US5559638A (en) * 1993-07-29 1996-09-24 Olympus Optical Co., Ltd. Wide-angle lens system #6

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824439U (en) * 1981-08-10 1983-02-16 マツダ株式会社 Multi-cylinder engine intake system
US4770512A (en) * 1984-12-18 1988-09-13 Olympus Optical Co., Ltd. Large aperture ratio wide-angle photographic lens system
US5559638A (en) * 1993-07-29 1996-09-24 Olympus Optical Co., Ltd. Wide-angle lens system #6

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