JPH0387929U - - Google Patents
Info
- Publication number
- JPH0387929U JPH0387929U JP14874689U JP14874689U JPH0387929U JP H0387929 U JPH0387929 U JP H0387929U JP 14874689 U JP14874689 U JP 14874689U JP 14874689 U JP14874689 U JP 14874689U JP H0387929 U JPH0387929 U JP H0387929U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- recess
- ring member
- opening
- direct injection
- 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
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図および第２図はこの考案の一実施例を示
すもので、第１図Ａはリング部材がピストンに対
して下死点側へ移動した状態を示す要部の断面図
、第１図Ｂはリング部材がピストンに対して上死
点側へ移動した状態を示す要部の断面図、第２は
第１図Ａの矢視図、第３図はピストンの位置と
加速度とを示す図、第４図および第５図は従来の
デイーゼル機関の要部を示すものであり、第４図
は噴射された燃料のほぼ全部が凹部内に入り込む
状態を示す断面図、第５図は第４図に示すものよ
りも燃料噴射時期を遅らせた状態を示す断面図で
ある。
１……機関本体、３……ピストン、４……燃焼
室、９……リング部材、１４……凹部、１５……
リツプ部。
Figures 1 and 2 show an embodiment of this invention, and Figure 1A is a cross-sectional view of the main part showing the state in which the ring member has moved toward the bottom dead center with respect to the piston. B is a sectional view of the main part showing the state in which the ring member has moved toward the top dead center side with respect to the piston, the second is a view taken in the direction of the arrow in FIG. 1A, and FIG. 3 is a view showing the position and acceleration of the piston. , Figures 4 and 5 show the main parts of a conventional diesel engine. Figure 4 is a cross-sectional view showing that almost all of the injected fuel enters the recess, and Figure FIG. 3 is a cross-sectional view showing a state in which the fuel injection timing is delayed from that shown in the figure. DESCRIPTION OF SYMBOLS 1... Engine body, 3... Piston, 4... Combustion chamber, 9... Ring member, 14... Recess, 15...
Lip part.
Claims (1)
、この凹部の開口部が底部側よりも狭くなるよう
、凹部の開口部内面に内側へ向かつて突出する環
状のリツプ部が形成された直接噴射式デイーゼル
機関において、前記リツプ部を前記ピストンと別
体のリング部材に形成し、このリング部材を前記
ピストンに対してその軸線方向へ所定範囲移動自
在に設けたことを特徴とする直接噴射式デイーゼ
ル機関。 Direct injection in which a recess is formed on the top surface of the piston facing the combustion chamber, and an annular lip that protrudes inward is formed on the inner surface of the opening of the recess so that the opening of the recess is narrower than the bottom side. A direct injection type diesel engine, characterized in that the lip portion is formed as a ring member separate from the piston, and the ring member is provided so as to be movable within a predetermined range in the axial direction of the piston. institution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14874689U JPH0387929U (en) | 1989-12-26 | 1989-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14874689U JPH0387929U (en) | 1989-12-26 | 1989-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0387929U true JPH0387929U (en) | 1991-09-09 |
Family
ID=31695183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14874689U Pending JPH0387929U (en) | 1989-12-26 | 1989-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0387929U (en) |
-
1989
- 1989-12-26 JP JP14874689U patent/JPH0387929U/ja active Pending