JPS56143327A - Intake port structure of engine - Google Patents

Intake port structure of engine

Info

Publication number
JPS56143327A
JPS56143327A JP4765080A JP4765080A JPS56143327A JP S56143327 A JPS56143327 A JP S56143327A JP 4765080 A JP4765080 A JP 4765080A JP 4765080 A JP4765080 A JP 4765080A JP S56143327 A JPS56143327 A JP S56143327A
Authority
JP
Japan
Prior art keywords
linear portion
opening
combustion chamber
intake port
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
JP4765080A
Other languages
Japanese (ja)
Other versions
JPS6120698B2 (en
Inventor
Toshimasu Tanaka
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 JP4765080A priority Critical patent/JPS56143327A/en
Publication of JPS56143327A publication Critical patent/JPS56143327A/en
Publication of JPS6120698B2 publication Critical patent/JPS6120698B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To eddy intake to improve combustion efficiency by making a linear portion of an intake port at an opening on the side wall of cylinder head eccentric so a curved portion of the same at an opening on the combustion chamber, and biasing within the linear portion, mass center of the intake air to the peripheral wall side of the combustion chamber. CONSTITUTION:An intake port 5 and exhaust port 6 are formed parallel to the center line P-P perpendiculr to a side wall 2a of cylinder head and the intake port 5 consists of a linear portion 5c shown by a-b at the opening 5b side of cylinder side wall and a curved portion 5d shown by b-c and curved longitudinally at the opening 5a side of combustion chamber. While the curved portion 5d has the circular section centering about S1, the linear portion 5c has the trapezoidal section centering about S2. Said sectional centers S1, S2 are formed spaced respectively by distances l1, l2 from the center line P-P, while l2 is larger than l2 so that the linear portion 5c is shifted to the peripheral wall 4a side of the combustion chamber.
JP4765080A 1980-04-10 1980-04-10 Intake port structure of engine Granted JPS56143327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4765080A JPS56143327A (en) 1980-04-10 1980-04-10 Intake port structure of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4765080A JPS56143327A (en) 1980-04-10 1980-04-10 Intake port structure of engine

Publications (2)

Publication Number Publication Date
JPS56143327A true JPS56143327A (en) 1981-11-09
JPS6120698B2 JPS6120698B2 (en) 1986-05-23

Family

ID=12781123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4765080A Granted JPS56143327A (en) 1980-04-10 1980-04-10 Intake port structure of engine

Country Status (1)

Country Link
JP (1) JPS56143327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871523A1 (en) * 2004-06-10 2005-12-16 Renault Sas Intake duct for internal combustion engine, has optimized section in upstream of outlet orifice and comprising general trapezoid form, where profile of section defines passage section for intake gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871523A1 (en) * 2004-06-10 2005-12-16 Renault Sas Intake duct for internal combustion engine, has optimized section in upstream of outlet orifice and comprising general trapezoid form, where profile of section defines passage section for intake gas

Also Published As

Publication number Publication date
JPS6120698B2 (en) 1986-05-23

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