JPS59160838U - Engine exhaust port structure - Google Patents

Engine exhaust port structure

Info

Publication number
JPS59160838U
JPS59160838U JP1983055022U JP5502283U JPS59160838U JP S59160838 U JPS59160838 U JP S59160838U JP 1983055022 U JP1983055022 U JP 1983055022U JP 5502283 U JP5502283 U JP 5502283U JP S59160838 U JPS59160838 U JP S59160838U
Authority
JP
Japan
Prior art keywords
exhaust port
exhaust
valve
port structure
engine exhaust
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
JP1983055022U
Other languages
Japanese (ja)
Inventor
弘 田中
Original Assignee
三菱自動車工業株式会社
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 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Priority to JP1983055022U priority Critical patent/JPS59160838U/en
Publication of JPS59160838U publication Critical patent/JPS59160838U/en
Pending 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１〜３図は従来の機関用排気ポート構造を示すもので
、第１図はその概略構成を模式的に示す断面図、第２図
は第１図の■−■矢視断面図、第３図は第１図の■−■
矢視断面図であり、第４〜７図は本考案の第１実施例と
しての機関用排気ポート構造を示すもので、第４図はそ
９概略構成を模式的に示す断面図、第５図は第４図の■
−■矢視断面！、第６図は第４図の！−■矢視断面図、
第７図はそのバルブリフトと流量との関係を示すグラフ
であり、第８図は本考案の第２実施例としての機関用排
気ポート構造を示す断面図である。 １・・・排気ポート、２・・・排気バルブ、３・・・バ
ルブシート、３ａ・・・バルブシートの端部、４・・・
ｕＦ％バルブの軸、５．　５’・・・排気バルブステム
ガイド、５’　ａ・・・排気バルブステムガイドの一部
としての排気ポート壁面と排気バルブステムガイドとの
接点、７・・・燃焼ガスの流れ、９・・・排気ポート、
１０・・・排気ポート壁面、１１・・・剥離防止用バル
ブシート、１１ａ・・・バルブシート本体、１１ｂ・・
・バルブシート本体の端部、１１Ｃ・・・補助バルブシ
ート部。Figures 1 to 3 show the conventional exhaust port structure for engines. Figure 1 is a cross-sectional view schematically showing its schematic configuration, Figure 2 is a cross-sectional view taken along the Figure 3 shows ■-■ in Figure 1.
4 to 7 show an engine exhaust port structure as a first embodiment of the present invention. FIG. 4 is a sectional view schematically showing the general structure of FIG. The figure is in Figure 4.
-■ Cross section in the arrow direction! , Figure 6 is the same as Figure 4! −■ Cross-sectional view in the direction of arrows,
FIG. 7 is a graph showing the relationship between valve lift and flow rate, and FIG. 8 is a sectional view showing an engine exhaust port structure as a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Exhaust port, 2...Exhaust valve, 3...Valve seat, 3a...End of valve seat, 4...
uF% valve shaft, 5. 5'...Exhaust valve stem guide, 5'a...Contact point between the exhaust port wall surface and the exhaust valve stem guide as part of the exhaust valve stem guide, 7...Flow of combustion gas, 9... exhaust port,
DESCRIPTION OF SYMBOLS 10...Exhaust port wall surface, 11...Valve seat for preventing peeling, 11a...Valve seat body, 11b...
・End of valve seat body, 11C...Auxiliary valve seat part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機関のシリンダにおける排気ポートを開閉する排気ノ〉
ルブのためのバルブシートが上記排気ギートの縁部に設
けられるとともに、上記排気バルブの軸を摺動自在に案
内するガイド部が排気通路の一側に設けられ、上記ガイ
ド部での排気の流線剥離を防止すべく、上記のガイド部
とバルブシートとをほぼ直線状に結ぶ壁部が上記排気通
路に設けられたことを特徴とする、機関用排気ポート構
造。Exhaust port that opens and closes the exhaust port in the engine cylinder
A valve seat for the valve is provided at the edge of the exhaust geat, and a guide portion for slidably guiding the shaft of the exhaust valve is provided on one side of the exhaust passage, and the exhaust flow in the guide portion is provided. An exhaust port structure for an engine, characterized in that a wall portion connecting the guide portion and the valve seat in a substantially straight line is provided in the exhaust passage in order to prevent line separation.
JP1983055022U 1983-04-13 1983-04-13 Engine exhaust port structure Pending JPS59160838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983055022U JPS59160838U (en) 1983-04-13 1983-04-13 Engine exhaust port structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983055022U JPS59160838U (en) 1983-04-13 1983-04-13 Engine exhaust port structure

Publications (1)

Publication Number Publication Date
JPS59160838U true JPS59160838U (en) 1984-10-27

Family

ID=30185352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983055022U Pending JPS59160838U (en) 1983-04-13 1983-04-13 Engine exhaust port structure

Country Status (1)

Country Link
JP (1) JPS59160838U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017155646A (en) * 2016-03-01 2017-09-07 マツダ株式会社 Suction/exhaust structure of internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833388A (en) * 1981-08-21 1983-02-26 Nippo Tsushin Kogyo Kk Loading system of communication equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833388A (en) * 1981-08-21 1983-02-26 Nippo Tsushin Kogyo Kk Loading system of communication equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017155646A (en) * 2016-03-01 2017-09-07 マツダ株式会社 Suction/exhaust structure of internal combustion engine

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