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JPS5681221A - Internal combustion engine - Google Patents

Internal combustion engine

Info

Publication number
JPS5681221A
JPS5681221A JP15842879A JP15842879A JPS5681221A JP S5681221 A JPS5681221 A JP S5681221A JP 15842879 A JP15842879 A JP 15842879A JP 15842879 A JP15842879 A JP 15842879A JP S5681221 A JPS5681221 A JP S5681221A
Authority
JP
Japan
Prior art keywords
bypass passage
downstream
flow control
internal combustion
intake
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
JP15842879A
Other languages
Japanese (ja)
Other versions
JPS635561B2 (en
Inventor
Hiroshi Matsuzaka
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP15842879A priority Critical patent/JPS5681221A/en
Publication of JPS5681221A publication Critical patent/JPS5681221A/en
Publication of JPS635561B2 publication Critical patent/JPS635561B2/ja
Granted 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

  • Characterised By The Charging Evacuation (AREA)

Abstract

PURPOSE: In an internal combustion engine wherein a bypass passage is running aside, a throttle valve is disposed, in order to improve fuel consumption in a light load range, by providing a flow control valve controlled by a intake negative pressure, in the bypass passage.
CONSTITUTION: A mixture flowing through an intake passage P1 into a combustion chamber R of an engine 10 is stirred by air running through a bypass passage P2 into the vicinity of an intake valve 13, so that it may be mixed more evenly. The mixture is swirled in the combustion chamber R, for expediting its combustion. A flow control valve 40 intervenes in the bypass passage P2 in the so-constituted internal combustion engine. The flow control valve 40 includes a spool 42 which is pulled against a spring 43 under an effect of intake negative pressure, to slide downstream inside a small-bore hole 41c downstream a valve housing 41. A wedge- shaped cavity 42c is shaped in the spool 42 at the downstream end, gradually expanded toward the downstream, thereby reducing the bypassed air amount in a light load range.
COPYRIGHT: (C)1981,JPO&Japio
JP15842879A 1979-12-06 1979-12-06 Internal combustion engine Granted JPS5681221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15842879A JPS5681221A (en) 1979-12-06 1979-12-06 Internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15842879A JPS5681221A (en) 1979-12-06 1979-12-06 Internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5681221A true JPS5681221A (en) 1981-07-03
JPS635561B2 JPS635561B2 (en) 1988-02-04

Family

ID=15671535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15842879A Granted JPS5681221A (en) 1979-12-06 1979-12-06 Internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5681221A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01152041U (en) * 1988-04-13 1989-10-19
JPH0261324A (en) * 1988-08-26 1990-03-01 Yamaha Motor Co Ltd Mounting structure for engine inlet system air horn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01152041U (en) * 1988-04-13 1989-10-19
JPH0261324A (en) * 1988-08-26 1990-03-01 Yamaha Motor Co Ltd Mounting structure for engine inlet system air horn

Also Published As

Publication number Publication date
JPS635561B2 (en) 1988-02-04

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