JP2006329160A5 - - Google Patents
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- Publication number
- JP2006329160A5 JP2006329160A5 JP2005157613A JP2005157613A JP2006329160A5 JP 2006329160 A5 JP2006329160 A5 JP 2006329160A5 JP 2005157613 A JP2005157613 A JP 2005157613A JP 2005157613 A JP2005157613 A JP 2005157613A JP 2006329160 A5 JP2006329160 A5 JP 2006329160A5
- Authority
- JP
- Japan
- Prior art keywords
- passage
- intake
- inner diameter
- intake port
- cylinder head
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims 7
- 229910004682 ON-OFF Inorganic materials 0.000 claims 3
- 239000012212 insulator Substances 0.000 claims 2
Claims (1)
２つの吸気通路と、前記吸気通路のいずれかに設けられ、前記吸気通路を開閉する開閉弁
とを有し、低負荷運転時には前記開閉弁を閉止するように構成された内燃機関において、
前記吸気通路が、
前記燃焼室が形成されるシリンダヘッド内において各々独立に形成され、一端が前記燃
焼室に連通し、他端が外部に連通する第１吸気ポートおよび第２吸気ポートと、
前記シリンダヘッドに接続されたインレットパイプに形成された吸気側通路、並びに、
前記吸気側通路が前記シリンダヘッドに向かって分岐した第１通路および第２通路と、
前記シリンダヘッドと前記インレットパイプとに挟持されたインシュレータに形成
され、前記第１吸気ポートおよび前記第１通路を連通する第１接続通路、並びに、前記第
２吸気ポートおよび前記第２通路を連通する第２接続通路とから構成され、
前記開閉弁が、前記インレットパイプの前記第１通路に設けられ、
前記第１通路の内径が、前記第１吸気ポートの内径よりも大きく形成されるとともに、
前記インシュレータの前記第１接続通路の内径が、前記第１通路の内径から前記第１吸気
ポートの内径に連続的に細くなるように形成されたことを特徴とする内燃機関。
An internal combustion engine having at least one combustion chamber, comprising: at least two intake passages communicating with the combustion chamber; and an on-off valve provided in any one of the intake passages for opening and closing the intake passage. In the internal combustion engine configured to close the on-off valve during load operation,
The intake passage is
A first intake port and a second intake port that are independently formed in the cylinder head in which the combustion chamber is formed, one end communicates with the combustion chamber, and the other end communicates with the outside;
An intake side passage formed in an inlet pipe connected to the cylinder head, and
A first passage and a second passage in which the intake-side passage branches toward the cylinder head;
A first connecting passage that is formed in an insulator sandwiched between the cylinder head and the inlet pipe and communicates the first intake port and the first passage, and communicates the second intake port and the second passage. A second connecting passage,
The on-off valve is provided in the first passage of the inlet pipe;
An inner diameter of the first passage is formed larger than an inner diameter of the first intake port;
An internal combustion engine, wherein an inner diameter of the first connecting passage of the insulator is formed so as to be continuously reduced from an inner diameter of the first passage to an inner diameter of the first intake port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005157613A JP2006329160A (en) | 2005-05-30 | 2005-05-30 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005157613A JP2006329160A (en) | 2005-05-30 | 2005-05-30 | Internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006329160A JP2006329160A (en) | 2006-12-07 |
| JP2006329160A5 true JP2006329160A5 (en) | 2008-03-27 |
Family
ID=37551094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005157613A Pending JP2006329160A (en) | 2005-05-30 | 2005-05-30 | Internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2006329160A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4989570B2 (en) * | 2008-06-30 | 2012-08-01 | 本田技研工業株式会社 | Air-cooled engine |
| JP5552105B2 (en) * | 2011-11-04 | 2014-07-16 | 富士重工業株式会社 | Engine intake system |
-
2005
- 2005-05-30 JP JP2005157613A patent/JP2006329160A/en active Pending
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