JPS55148913A - Intake swirl device for internal combustion engine - Google Patents

Intake swirl device for internal combustion engine

Info

Publication number
JPS55148913A
JPS55148913A JP5539179A JP5539179A JPS55148913A JP S55148913 A JPS55148913 A JP S55148913A JP 5539179 A JP5539179 A JP 5539179A JP 5539179 A JP5539179 A JP 5539179A JP S55148913 A JPS55148913 A JP S55148913A
Authority
JP
Japan
Prior art keywords
valve
wall section
lap portion
internal combustion
combustion engine
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
JP5539179A
Other languages
Japanese (ja)
Other versions
JPS5911722B2 (en
Inventor
Shinichi Nanun
Eiji Murata
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP54055391A priority Critical patent/JPS5911722B2/en
Publication of JPS55148913A publication Critical patent/JPS55148913A/en
Publication of JPS5911722B2 publication Critical patent/JPS5911722B2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

PURPOSE: To attain an effective condition of the intake over an entire load range, by providing a changing mechanism to alter the valve lift of the moving valve mechanism of an internal combustion engine, providing a lap portion on the sliding contact faces of a valve and a valve seat and gradually changing the lap portion.
CONSTITUTION: An annular lap portion 11, which slides with a prescribed travel in contact with a valve seat 6, is provided on the head 10 of an intake valve 3 which is opened or closed by a cam 5 that is rotated by a rocker arm 4 synchronously with the rotation of an engine. The lap portion 11 comprises an outer wall section 10a which is located on the peripheral surface of the head 10 concentrically with a stem 8 and which has a prescribed height, and an inner wall section 6a which is located on a valve seat 6 and which slides in contact with the outer wall section 10a. The thickness of the outer wall section 10a is gradually varied so that a prescribed gradient is defined between parts 10a1, 10a2. A support arm 7 is swung centering a fulcrum 7a to alter the fulcrum of the rocker arm 4 to change the lift of the valve.
COPYRIGHT: (C)1980,JPO&Japio
JP54055391A 1979-05-07 1979-05-07 Internal combustion engine intake swirl device Expired JPS5911722B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54055391A JPS5911722B2 (en) 1979-05-07 1979-05-07 Internal combustion engine intake swirl device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54055391A JPS5911722B2 (en) 1979-05-07 1979-05-07 Internal combustion engine intake swirl device

Publications (2)

Publication Number Publication Date
JPS55148913A true JPS55148913A (en) 1980-11-19
JPS5911722B2 JPS5911722B2 (en) 1984-03-17

Family

ID=12997209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54055391A Expired JPS5911722B2 (en) 1979-05-07 1979-05-07 Internal combustion engine intake swirl device

Country Status (1)

Country Link
JP (1) JPS5911722B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519345A (en) * 1984-03-05 1985-05-28 Bob Walter Adjustable ratio rocker arm

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63160836U (en) * 1987-04-09 1988-10-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519345A (en) * 1984-03-05 1985-05-28 Bob Walter Adjustable ratio rocker arm

Also Published As

Publication number Publication date
JPS5911722B2 (en) 1984-03-17

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