JPS5546003A - Helically shaped suction port for internal combustion engine - Google Patents

Helically shaped suction port for internal combustion engine

Info

Publication number
JPS5546003A
JPS5546003A JP11666578A JP11666578A JPS5546003A JP S5546003 A JPS5546003 A JP S5546003A JP 11666578 A JP11666578 A JP 11666578A JP 11666578 A JP11666578 A JP 11666578A JP S5546003 A JPS5546003 A JP S5546003A
Authority
JP
Japan
Prior art keywords
engine
helical
suction port
helically shaped
suction
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
JP11666578A
Other languages
Japanese (ja)
Inventor
Kiyoshi Nakanishi
Takeshi Okumura
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 JP11666578A priority Critical patent/JPS5546003A/en
Publication of JPS5546003A publication Critical patent/JPS5546003A/en
Pending 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

Abstract

PURPOSE: To provide a helically shaped suction port for an internal combustion engine which can generate strong whirling flows in a combustion chamber of the engine during low speed running of the engine and can keep its loading efficiency from lowering during high speed high load running of the engine.
CONSTITUTION: During a suction stroke, fuel air mixture prepared in a carburettor is introduced into a combustion chamber 4 across a suction valve 5 by means of a helically shaped suction port 6. The suction prot 6 consists of an entrance passage portion A having its axis slightly curved and having a rectangular cross section at its open end, and a helical portion B having its exit section 13 formed into a cylinder with its center axis coincident with a helical axis b of the helical portion B. Considering that a smaller angle from the starting point G of the helical configuration to the terminal end E of the configuration, designated by an angle θ, would make it difficult for the port to generate sufficiently strong whirling flows, the helical angle θ is determined to be substantially greater than 230°. According to the suction port, sufficiently strong whirling flows can be obtained even during low speed running of the engine.
COPYRIGHT: (C)1980,JPO&Japio
JP11666578A 1978-09-25 1978-09-25 Helically shaped suction port for internal combustion engine Pending JPS5546003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11666578A JPS5546003A (en) 1978-09-25 1978-09-25 Helically shaped suction port for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11666578A JPS5546003A (en) 1978-09-25 1978-09-25 Helically shaped suction port for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5546003A true JPS5546003A (en) 1980-03-31

Family

ID=14692853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11666578A Pending JPS5546003A (en) 1978-09-25 1978-09-25 Helically shaped suction port for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5546003A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693215A (en) * 1982-09-18 1987-09-15 Kabushiki Kaisha Toyota Chuo Kenkyusho Inlet port for internal combustion engine
US6003485A (en) * 1997-06-10 1999-12-21 Nissan Motor Co., Ltd. Helical intake port for an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693215A (en) * 1982-09-18 1987-09-15 Kabushiki Kaisha Toyota Chuo Kenkyusho Inlet port for internal combustion engine
US6003485A (en) * 1997-06-10 1999-12-21 Nissan Motor Co., Ltd. Helical intake port for an internal combustion engine

Similar Documents

Publication Publication Date Title
JPS5546002A (en) Helically shaped suction port for internal combustion engine
JPS5525511A (en) Internal combustion engine
JPS56113022A (en) Intake controlling apparatus of internal combustion engine
JPS566015A (en) Structure of intake passage for internal combustion engine
JPS5523313A (en) Two-cycle diesel engine
JPS5546012A (en) Two cycle gasoline engine
JPS5540278A (en) Intake device for internal combustion engine
JPS5546004A (en) Helically shaped suction port for internal combustion engine
JPS562422A (en) Helical type intake port for internal combustion engine
JPS5519945A (en) Intake system for multi-cylinder internal combustion engine
JPS5546003A (en) Helically shaped suction port for internal combustion engine
JPS5593922A (en) Engine with auxiliary intake passage
JPS5546001A (en) Helically shaped suction port for internal combustion engine
JPS5546005A (en) Helically shaped suction port for internal combustion engine
JPS5519944A (en) Internal combustion engine
JPS5523315A (en) Two-cycle internal combustion engine
JPS5525547A (en) Suction device of multicylinder internal combustion engine
JPS5447928A (en) Air intake system for internal combustion engine
JPS5762922A (en) Internal combustion engine
JPS55137314A (en) Supercharger for reciprocating engine
JPS54106712A (en) Vortex chamber type diesel engine
JPS5762924A (en) Internal combustion engine
JPS5654923A (en) Suction device for internal combustion engine
JPS5781120A (en) Internal combustion engine
JPS55137315A (en) Supercharger for reciprocating engine