JPS63119829U - - Google Patents
Info
- Publication number
- JPS63119829U JPS63119829U JP1151287U JP1151287U JPS63119829U JP S63119829 U JPS63119829 U JP S63119829U JP 1151287 U JP1151287 U JP 1151287U JP 1151287 U JP1151287 U JP 1151287U JP S63119829 U JPS63119829 U JP S63119829U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- auxiliary
- piston
- injection nozzle
- opening
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 2
- 239000000567 combustion gas Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の直接噴射式内燃機関の燃焼室
周囲の断面図、第２図は補助ピストン下降時に燃
焼室内に空気が噴き出される状態を示す図である
。
２……シリンダ、３……ピストン、４……シリ
ンダヘツド、５……燃焼室、６……燃料噴射ノズ
ル、１１……補助シリンダ、１２……補助ピスト
ン、２２，２３……連通孔、２４……空気噴出口
。
FIG. 1 is a sectional view of the surroundings of the combustion chamber of the direct injection internal combustion engine of the present invention, and FIG. 2 is a diagram showing the state in which air is blown into the combustion chamber when the auxiliary piston descends. 2... Cylinder, 3... Piston, 4... Cylinder head, 5... Combustion chamber, 6... Fuel injection nozzle, 11... Auxiliary cylinder, 12... Auxiliary piston, 22, 23... Communication hole, 24 ...Air outlet.
Claims (1)
内で摺動するピストンと、上記シリンダの上部に
取付けられたシリンダヘツドと、上記シリンダ、
ピストン、シリンダヘツドにより形成される燃焼
室に新気を導入するための吸気ポートと、上記燃
焼室内へ向けて燃料を噴射するようにシリンダヘ
ツド内に設けた噴射ノズルと、燃焼ガスを排気す
るための排気ポートと、これらポートを開閉する
ためのバルブと、該バルブを駆動するための駆動
装置とを備えた直接噴射式内燃機関において、上
記シリンダヘツド内に設けた補助シリンダと、該
補助シリンダ内で摺動する補助ピストンと、上記
噴射ノズルの先端周囲に該噴射ノズルを囲むよう
に形成されかつ燃焼室側へ開口させた空気噴出口
と、該空気噴出口と補助シリンダの作動室との間
を、上記補助ピストンの上死点付近及び下死点付
近でのみ連通しかつ補助ピストンのストロークの
途中では遮断する通路手段と、機関の行程に同期
して補助ピストンを往復させる駆動手段とを備え
た直接噴射式内燃機関。 ２ 通路手段は、一端が補助シリンダ作動室に開
口し他端がピストン側面に開口したピストン内部
に形成した第１連通孔と、一端が空気噴出口に連
通し他端が補助シリンダの側面に開口したシリン
ダヘツド内部に形成した第２連通孔とから成り、
前記第２連通孔は補助ピストンの上死点付近で直
接補助シリンダ作動室に連通し、下死点付近で前
記第１連通孔を介して補助シリンダ作動室に連動
するようにした実用新案登録請求の範囲第１項記
載の内燃機関。 ３ 噴射ノズルの先端周囲に形成した空気噴出口
が燃焼室に開口する開口断面積は上記第１連通孔
の断面積より小さい実用新案登録請求の範囲第２
項記載の内燃機関。[Claims for Utility Model Registration] 1. A cylinder, a piston that slides within the cylinder by a crank mechanism, a cylinder head attached to the top of the cylinder, the cylinder,
An intake port for introducing fresh air into the combustion chamber formed by the piston and cylinder head, an injection nozzle provided in the cylinder head to inject fuel into the combustion chamber, and an injection nozzle for exhausting combustion gas. In a direct injection internal combustion engine equipped with an exhaust port, a valve for opening and closing these ports, and a drive device for driving the valve, an auxiliary cylinder provided in the cylinder head, and an auxiliary cylinder provided in the auxiliary cylinder. an auxiliary piston that slides on the auxiliary piston; an air outlet formed around the tip of the injection nozzle so as to surround the injection nozzle and opened toward the combustion chamber; and a space between the air outlet and the working chamber of the auxiliary cylinder. passage means that communicates the auxiliary piston only near the top dead center and bottom dead center of the auxiliary piston and closes it during the stroke of the auxiliary piston, and a drive means that reciprocates the auxiliary piston in synchronization with the stroke of the engine. direct injection internal combustion engine. 2. The passage means includes a first communication hole formed inside the piston having one end open to the auxiliary cylinder working chamber and the other end opening to the side surface of the piston, and one end communicating with the air jet port and the other end opening to the side surface of the auxiliary cylinder. and a second communication hole formed inside the cylinder head,
A request for registration of a utility model in which the second communication hole directly communicates with the auxiliary cylinder working chamber near the top dead center of the auxiliary piston, and interlocks with the auxiliary cylinder working chamber through the first communication hole near the bottom dead center of the auxiliary piston. The internal combustion engine according to the range No. 1 above. 3. The opening cross-sectional area of the air jet opening formed around the tip of the injection nozzle opening into the combustion chamber is smaller than the cross-sectional area of the first communicating hole, as claimed in Claim 2 of Utility Model Registration.
Internal combustion engine as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987011512U JPH066191Y2 (en) | 1987-01-30 | 1987-01-30 | Direct injection internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987011512U JPH066191Y2 (en) | 1987-01-30 | 1987-01-30 | Direct injection internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63119829U true JPS63119829U (en) | 1988-08-03 |
| JPH066191Y2 JPH066191Y2 (en) | 1994-02-16 |
Family
ID=30798797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987011512U Expired - Lifetime JPH066191Y2 (en) | 1987-01-30 | 1987-01-30 | Direct injection internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066191Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110829A (en) * | 1982-12-17 | 1984-06-26 | Mazda Motor Corp | Direct injection type diesel engine |
| JPS608470U (en) * | 1983-06-30 | 1985-01-21 | 株式会社小松製作所 | Air injection combustion equipment for internal combustion engines |
| JPS608469U (en) * | 1983-06-30 | 1985-01-21 | 株式会社小松製作所 | Air injection combustion equipment for internal combustion engines |
-
1987
- 1987-01-30 JP JP1987011512U patent/JPH066191Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110829A (en) * | 1982-12-17 | 1984-06-26 | Mazda Motor Corp | Direct injection type diesel engine |
| JPS608470U (en) * | 1983-06-30 | 1985-01-21 | 株式会社小松製作所 | Air injection combustion equipment for internal combustion engines |
| JPS608469U (en) * | 1983-06-30 | 1985-01-21 | 株式会社小松製作所 | Air injection combustion equipment for internal combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066191Y2 (en) | 1994-02-16 |
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