JPH0487927U - - Google Patents
Info
- Publication number
- JPH0487927U JPH0487927U JP40390590U JP40390590U JPH0487927U JP H0487927 U JPH0487927 U JP H0487927U JP 40390590 U JP40390590 U JP 40390590U JP 40390590 U JP40390590 U JP 40390590U JP H0487927 U JPH0487927 U JP H0487927U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- combustion chamber
- auxiliary
- combustion
- chamber
- 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 11
- 239000000446 fuel Substances 0.000 claims 3
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 239000000567 combustion gas Substances 0.000 claims 1
- 230000000116 mitigating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Description
第１図は圧縮着火式内燃機関に適用された本考
案の第１実施例を示す断面図である。第２図は本
考案の燃焼室内圧力の経過を従来技術と比較した
線図である。第３図は本考案の連通路内のガス流
速の線図である。第４図は本考案の第２実施例を
示す断面図である。第５図は本考案の第３実施例
を示す断面図である。第６図は本考案の第３実施
例を示す断面図である。第７図は本考案の第４実
施例を示す断面図である。
FIG. 1 is a sectional view showing a first embodiment of the present invention applied to a compression ignition internal combustion engine. FIG. 2 is a diagram comparing the course of the combustion chamber pressure of the present invention with that of the prior art. FIG. 3 is a diagram of gas flow velocity in the communication path of the present invention. FIG. 4 is a sectional view showing a second embodiment of the present invention. FIG. 5 is a sectional view showing a third embodiment of the present invention. FIG. 6 is a sectional view showing a third embodiment of the present invention. FIG. 7 is a sectional view showing a fourth embodiment of the present invention.
Claims (1)
ドと前記シリンダ内に摺動自在に挿置されたピス
トンから形成される燃焼室と、該燃焼室に設けら
れた主凹所と、前記シリンダヘツドに取りつけら
れ前記主凹所に燃料を噴射供給する燃料噴射弁と
、 前記主凹所に近接して前記シリンダヘツドに形
成された補助シリンダと前記補助シリンダ内に挿
置された補助ピストンとで構成される空気室と、
該空気室と燃焼室を連通し前記主凹所に指向する
連通路と、 前記補助ピストンを前記空気室容積を減少する
方向に付勢すると共に前記燃焼室の圧力上昇時に
は前記空気室容積を増し、燃焼室の急激な圧力上
昇を緩和する方向に前記補助ピストンを移動し、
圧力降下時には前記空気室容積を減少し前記連通
路より空気を噴射する方向に前記補助ピストンを
移動するばねとから成り、 燃焼室の急激な圧力上昇を緩和すると共に、燃
焼中期以降該燃焼室内の燃焼ガスに乱れを与える
ことを特徴とする筒内燃料直接噴射式内燃機関。[Claims for Utility Model Registration] A combustion chamber formed by a cylinder, a cylinder head facing the cylinder, and a piston slidably inserted into the cylinder, and a main recess provided in the combustion chamber. , a fuel injection valve attached to the cylinder head to inject fuel into the main recess; an auxiliary cylinder formed in the cylinder head in proximity to the main recess; and an auxiliary cylinder inserted in the auxiliary cylinder. an air chamber consisting of a piston;
a communication path that connects the air chamber and the combustion chamber and is directed toward the main recess; and a communication path that urges the auxiliary piston in a direction to decrease the volume of the air chamber and increases the volume of the air chamber when the pressure of the combustion chamber increases. , moving the auxiliary piston in a direction that alleviates the sudden pressure rise in the combustion chamber;
and a spring that moves the auxiliary piston in the direction of reducing the volume of the air chamber and injecting air from the communication passage when the pressure drops, thereby mitigating the sudden pressure rise in the combustion chamber and reducing the pressure inside the combustion chamber after the middle stage of combustion. A direct fuel injection type internal combustion engine that is characterized by turbulence in the combustion gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40390590U JPH0735965Y2 (en) | 1990-12-18 | 1990-12-18 | Metal folding plate mounting structure with temporary fixing tool to movable type support frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40390590U JPH0735965Y2 (en) | 1990-12-18 | 1990-12-18 | Metal folding plate mounting structure with temporary fixing tool to movable type support frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0487927U true JPH0487927U (en) | 1992-07-30 |
| JPH0735965Y2 JPH0735965Y2 (en) | 1995-08-16 |
Family
ID=31881620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40390590U Expired - Lifetime JPH0735965Y2 (en) | 1990-12-18 | 1990-12-18 | Metal folding plate mounting structure with temporary fixing tool to movable type support frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735965Y2 (en) |
-
1990
- 1990-12-18 JP JP40390590U patent/JPH0735965Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735965Y2 (en) | 1995-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |