JPS5519945A - Intake system for multi-cylinder internal combustion engine - Google Patents

Intake system for multi-cylinder internal combustion engine

Info

Publication number
JPS5519945A
JPS5519945A JP9255478A JP9255478A JPS5519945A JP S5519945 A JPS5519945 A JP S5519945A JP 9255478 A JP9255478 A JP 9255478A JP 9255478 A JP9255478 A JP 9255478A JP S5519945 A JPS5519945 A JP S5519945A
Authority
JP
Japan
Prior art keywords
throttle valve
intake
passage
valve
internal combustion
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
JP9255478A
Other languages
Japanese (ja)
Other versions
JPS5934850B2 (en
Inventor
Toshiaki Motoi
Hideaki Matsui
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 JP53092554A priority Critical patent/JPS5934850B2/en
Publication of JPS5519945A publication Critical patent/JPS5519945A/en
Publication of JPS5934850B2 publication Critical patent/JPS5934850B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE: To enhance the combustion character of a multi-cylinder internal combustion engine by providing a throttle valve and a second throttle valve in the intake passage of the engine and communicating the passage between these valves and the neighborhood of an intake valve with an auxiliary branch passage such that air- fuel mixture is introduced into the combustion chamber in a tangential direction thereto from the branch passage.
CONSTITUTION: An intake port 5 of a multi-cylinder internal combustion engine 1 is made spiral, and a throttle valve 12 and a second throttle valve 14 are provided within an intake passage 10. The passage between the valve 25 and 26 and the neiborhood a spiral intake valve 6 of an intake port 5 are communicated with an auxiliary branch passage 25 and 26. The second throttle valve 14 is opened and closed by a negative pressure sensor means 17 which is driven by the intake tube negative pressure immediately downstream the throttle valve 12, and it is held closed at the time of low engine load condition and open at the time of high engine load condition. Thus, at the time of the low engine load air-fuel mixture is introduced as spiral vortex from the branch passage 25 and 26 into a combustion chamber 4.
COPYRIGHT: (C)1980,JPO&Japio
JP53092554A 1978-07-31 1978-07-31 Intake system for multi-cylinder internal combustion engine Expired JPS5934850B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53092554A JPS5934850B2 (en) 1978-07-31 1978-07-31 Intake system for multi-cylinder internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53092554A JPS5934850B2 (en) 1978-07-31 1978-07-31 Intake system for multi-cylinder internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5519945A true JPS5519945A (en) 1980-02-13
JPS5934850B2 JPS5934850B2 (en) 1984-08-24

Family

ID=14057615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53092554A Expired JPS5934850B2 (en) 1978-07-31 1978-07-31 Intake system for multi-cylinder internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5934850B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457272A (en) * 1981-11-04 1984-07-03 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4462349A (en) * 1981-11-04 1984-07-31 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port for use in a diesel engine
US4466398A (en) * 1981-07-31 1984-08-21 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466396A (en) * 1981-06-29 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466394A (en) * 1981-04-24 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466395A (en) * 1981-06-29 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466397A (en) * 1981-06-30 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4473040A (en) * 1981-07-30 1984-09-25 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port for use in a diesel engine
US4523560A (en) * 1980-12-02 1985-06-18 Toyota Jidosha Kogyo Kabushiki Kaisha Intake device of an internal combustion engine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523560A (en) * 1980-12-02 1985-06-18 Toyota Jidosha Kogyo Kabushiki Kaisha Intake device of an internal combustion engine
US4466394A (en) * 1981-04-24 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466396A (en) * 1981-06-29 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466395A (en) * 1981-06-29 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4466397A (en) * 1981-06-30 1984-08-21 Toyota Jidosha Kogyo Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4473040A (en) * 1981-07-30 1984-09-25 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port for use in a diesel engine
US4466398A (en) * 1981-07-31 1984-08-21 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4457272A (en) * 1981-11-04 1984-07-03 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port
US4462349A (en) * 1981-11-04 1984-07-31 Toyota Jidosha Kabushiki Kaisha Flow control device of a helically-shaped intake port for use in a diesel engine

Also Published As

Publication number Publication date
JPS5934850B2 (en) 1984-08-24

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