JPH0696185B2 - Cylinder molding method for 2-cycle engine - Google Patents
Cylinder molding method for 2-cycle engineInfo
- Publication number
- JPH0696185B2 JPH0696185B2 JP62237506A JP23750687A JPH0696185B2 JP H0696185 B2 JPH0696185 B2 JP H0696185B2 JP 62237506 A JP62237506 A JP 62237506A JP 23750687 A JP23750687 A JP 23750687A JP H0696185 B2 JPH0696185 B2 JP H0696185B2
- Authority
- JP
- Japan
- Prior art keywords
- die
- scavenging
- casting
- passage
- cylinder
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、シュニーレ掃気式クランク圧縮２サイクルエ
ンジンにおける掃気通路部分の形成に特微を有する２サ
イクルエンジンのシリンダ部成形法に関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a method for forming a cylinder portion of a two-stroke engine, which is characterized by forming a scavenging passage portion in a Schneile scavenging crank compression two-stroke engine.
（従来の技術） 前記シュニーレ掃気式クランク圧縮２サイクル（ガソリ
ン）エンジンの従来例を第４図ないし第６図によって説
明すると、シリンダライナ（２）を有するシリンダ部
（１）の下部にクランクケース（３）を連結し、該シリ
ンダ部（２）に点火プラグ（５）、吸気孔（６）、排気
孔（７）、掃気孔（８）、掃気通路（９）等を設けた構
造になっており（図中（４）はピストン）、前記シリン
ダ部（１）の製造法について説明すると、第７、８、９
図に示すように複数のダイキャスト型（11a）（11b）
（11c）で内部に形成されたシリンダ部形成スペース（1
0）内にシリンダライナ（２）を予め位置決めしてセッ
トし、ダイキャスト型（11a）（11b）（11c）の内側に
それぞれダイキャスト型突出部（11′ａ）（11′ｂ）
（11′ｃ）（11′ｃ）（給気路、排気路、掃気通路形成
部分）を突設して、前記スペース（10）内に溶融金属を
注入して凝固せしめたのち各ダイキャスト型を矢示方向
へ外し、第４、５、６図に示すようなシリンダ部（１）
に成形している。(Prior Art) A conventional example of the Schneile scavenging-type crank compression two-cycle (gasoline) engine will be described with reference to FIGS. 4 to 6. A crankcase (1) having a cylinder liner (2) is provided below a crankcase (1). 3) is connected, and a spark plug (5), an intake hole (6), an exhaust hole (7), a scavenging hole (8), a scavenging passage (9), etc. are provided in the cylinder portion (2). A cage ((4) in the figure is a piston), and a manufacturing method of the cylinder section (1) will be described.
Multiple die cast molds (11a) (11b) as shown
Cylinder part forming space (1c)
Cylinder liner (2) is pre-positioned and set in (0), and the die cast die protrusions (11'a) (11'b) are respectively placed inside the die cast die (11a) (11b) (11c).
(11'c) (11'c) (air supply passage, exhaust passage, scavenging passage forming portion) are projected, and molten metal is injected into the space (10) to solidify it, and then each die cast die The cylinder part (1) as shown in FIGS.
It is molded into.
（発明が解決しようとする問題点） 従来の前記成形法で成形されたシリンダ部（１）は、掃
気孔（８）からシリンダ内に流入して混合気（新気）が
排気孔（７）へそのまま吹き抜けてしまうのを防ぐため
に、第５図に示すように掃気通路（９）を排気孔（７）
の反対側へ向けた形状になっているが、掃気流に矢示の
ような反排気孔側への方向性を持たせているだけであっ
て、掃気の助走区間が不十分である。(Problems to be Solved by the Invention) In the cylinder portion (1) molded by the conventional molding method, the air-fuel mixture (fresh air) flows into the cylinder through the scavenging hole (8) and the exhaust hole (7). As shown in FIG. 5, the scavenging passage (9) is connected to the exhaust hole (7) in order to prevent the air from being blown through to the exhaust hole (7).
However, the scavenging air is insufficient in the run-up section only because the scavenging airflow has a direction to the side opposite to the exhaust hole as shown by the arrow.
前記掃気流を反排気孔側へ強く方向性を持たせるために
は、第10図に示すような形状のダイキャスト型突出部
（11″ｃ）（11″ｃ）により、シリンダライナ（２）側
に壁（1a）（1a）部分を設けた掃気通路に形成して掃気
の助走区間を確保することが考えられるが、該ダイキャ
スト突出部（11″ｃ）付きダイキャスト型（11c）は抜
き取ることができず、実施できない。In order to strongly direct the scavenging air flow to the side opposite to the exhaust holes, the cylinder liner (2) is formed by the die-cast type protrusions (11 ″ c) (11 ″ c) having the shape shown in FIG. It is conceivable to form a scavenging passage provided with a wall (1a) (1a) portion on the side to secure a scavenging run-up section, but the die-cast mold (11c) with the die-cast protrusion (11 ″ c) It cannot be extracted and cannot be carried out.
（問題点の解決手段） 本発明は、前記のような実状に鑑みて開発された２サイ
クルエンジンのシリンダ部成形法であって、シュニーレ
掃気式クランク圧縮２サイクルエンジンのシリンダ部の
鋳込み成形に際し、複数のダイキャスト型で内部に形成
されたシリンダ部形成スペース内にシリンダライナをセ
ットして、前記ダイキャスト型の内側に前記シリンダラ
イナの掃気孔部に当接した掃気路水平部分形成用のダイ
キャスト型突出部を突設するとともに前記ダイキャスト
型突出部の下側に当接した掃気略垂直部分形成用のダイ
キャスト型突出部を立設して前記スペース内に配置し、
前記スペース内に溶融金属を注入して凝固せしめたのち
前記各ダイキャスト型を外し、前記掃気路水平部分の側
方部内に盲栓を嵌挿して掃気通路を形成する構成とし、
ダイキャスト型の内側に突設されシリンダライナの掃気
孔部に当接した掃気路水平部分形成用のダイキャスト型
突出部と、ダイキャスト型の内側に立設され前記ダイキ
ャスト型突出部の下側に当接した掃気路垂直部分形成用
のダイキャスト型突出部、および盲栓により、掃気流の
助走路となる掃気路水平部分を備えた掃気通路をダイキ
ャスト法により成形可能とし、前記のような問題点を解
消している。(Means for Solving Problems) The present invention is a method for forming a cylinder portion of a two-cycle engine developed in view of the above-mentioned circumstances, and in casting the cylinder portion of a schnee scavenging type crank compression two-cycle engine, A die for forming a horizontal portion of a scavenging passage, which is set in a space for forming a cylinder portion formed inside by a plurality of die-casting dies, and contacts the scavenging holes of the cylinder liner inside the die-casting die. Placed in the space by standing up the die-casting die protrusion for forming the scavenging substantially vertical portion that is in contact with the lower side of the die-casting die protrusion while protruding the casting die protrusion,
After injecting molten metal into the space and solidifying it, the die casting molds are removed, and a scavenging passage is formed by inserting a blind plug into the lateral portion of the horizontal portion of the scavenging passage.
A die-casting die protrusion for forming a horizontal portion of the scavenging passage that is provided so as to project inside the die-casting die and is in contact with the scavenging hole portion of the cylinder liner, and below the die-casting die protrusion that is erected inside the die-casting die. The scavenging passage having a horizontal portion of the scavenging passage, which is the auxiliary passage of the scavenging airflow, can be formed by the die-casting method by the die-casting type protrusion for forming the vertical portion of the scavenging passage abutting the side, and the blind plug. It solves such problems.
（作用） ダイキャスト型の内側に突設したシリンダライナの掃気
孔部に当接した掃気路水平部分形成用のダイキャスト型
突出部により、掃気孔部の外側に掃気路水平部分が形成
され、ダイキャスト型の内側に立設され前記ダイキャス
ト突出部の下側に当接した掃気路垂直部分形成用のダイ
キャスト型突出部により、前記掃気路水平部分に連通し
た掃気路垂直部分が形成されるとともに、前記両ダイキ
ャスト突出部はダイキャスト型とともに側方、下方に抜
き取られ外されて、前記掃気路水平部分に盲栓を嵌着し
て掃気流の助走路となる掃気路水平部分を備えた掃気通
路がダイキャスト法で容易に形成され、掃気通路に設け
た掃気路水平部分が掃気流の助走路となり、掃気はシリ
ンダ内で反排気孔側へ強く方向性が持たされる。(Function) The scavenging passage horizontal portion is formed outside the scavenging hole portion by the die-casting die protrusion for forming the scavenging passage horizontal portion that is in contact with the scavenging hole portion of the cylinder liner that is provided inside the die casting die, The scavenging passage vertical portion that communicates with the scavenging passage horizontal portion is formed by the scavenging passage vertical portion forming die-casting protrusion portion that is erected inside the die casting mold and is in contact with the lower side of the die casting protrusion portion. In addition, the both die cast protrusions are removed laterally and downward together with the die cast mold, and a blind plug is fitted to the horizontal portion of the scavenging passage to form a horizontal portion of the scavenging passage that serves as an advancing passage for the scavenging air flow. The provided scavenging passage is easily formed by the die-casting method, the horizontal portion of the scavenging passage provided in the scavenging passage serves as an auxiliary passage for the scavenging air, and the scavenging is strongly directed to the side opposite to the exhaust hole in the cylinder.
（実施例） 第１図ないし第３図に本発明の一実施例を示し、図中
（21a）（21b）（21c）（21d）（21e）はダイキャスト
型、（２）はシリンダライナ、（６）は給気孔、（７）
は排気孔、（８）は掃気孔であて、シュニーレ掃気式ク
ランク圧縮２サイクルエンジンのシリンダ部の鋳込み形
成に際し、複数のダイキャスト型（21a）（21b）（21
c）（21d）（21e）で内部に形成されたシリンダ部形成
スペース（20）内にシリンダライナ（２）をセットし、
前記ダイキャスト型の内側にシリンダライナ（２）の掃
気孔（８）（８）部に当接した掃気路水平部分（29a）
（2a）形成用のダイキャスト突出部（22）（22）を突出
するとともにダイキャスト型突出部（22）（22）下側に
当接した掃気路垂直部分（29b）（29b）形成用のダイキ
ャスト型突出部（23）（23）を立設して前記スペース
（20）内に配置し、前記スペース（20）内に溶融金属を
注入して凝固せしめたのち前記各ダイキャスト型を外
し、前記掃気路水平部分（29a）（29a）の側方部内に盲
栓（25）（25）を嵌着して掃気通路（29a,b）（2a,b）
に形成してシリンダ部（30）を成形する。(Embodiment) One embodiment of the present invention is shown in FIGS. 1 to 3, in which (21a), (21b), (21c), (21d) and (21e) are die-cast dies, and (2) is a cylinder liner. (6) is an air supply hole, (7)
Is an exhaust hole, and (8) is a scavenging hole, which is used to form a plurality of die-cast molds (21a) (21b) (21) when casting the cylinder portion of a schnee scavenging type crank compression two-cycle engine.
c) Set the cylinder liner (2) in the cylinder part forming space (20) formed inside by (21d) and (21e),
The scavenging passage horizontal part (29a) that abuts the scavenging holes (8) (8) of the cylinder liner (2) inside the die cast mold.
(2a) For forming the scavenging passage vertical portion (29b) (29b) for protruding the die-cast protrusion (22) (22) for forming and contacting the lower side of the die-cast die protrusion (22) (22) Die cast die protrusions (23) (23) are erected and placed in the space (20), molten metal is injected into the space (20) to solidify, and then the die cast die are removed. , The scavenging passages (29a, b) (2a, b) by fitting blind plugs (25) (25) into the lateral portions of the scavenging passage horizontal portions (29a) (29a)
Then, the cylinder portion (30) is formed.
前記ダイキャスト型突出部（22）（22）は、ダイキャス
ト型（21a）（21b）の内側に水平状に突設されシリンダ
ライナ（２）の掃気孔（８）（８）部に突設されている
ため、注入した溶融金属の凝固後に、ダイキャスト型
（21a）（21b）を第１図（Ａ）に示す矢示方向（側方）
に外すと、ダイキャスト型突出部（22）（22）も容易に
引き抜かれて外され、外側に貫設された掃気路水平部分
（29a）（29a）が形成されるとともに、前記ダイキャス
ト型突出部（23）（23）は、ダイキャスト型（21c）上
に立設されダイキャスト型突出部（22）（22）の下側に
当接されているため、ダイキャスト型（21c）を第１図
（Ａ）に示す矢示方向（下方）に外すと、ダイキャスト
型突出部（23）（23）も容易に引き抜かれて外され、掃
気路水平部分（29a）（29a）に連通した掃気路垂直部分
（29b）（29b）が連設されて、該掃気路垂直部分（29
b）（29b）はシリンダ軸心に平行に形成され、掃気路水
平部分（29a）（29a）の側方部内に盲栓（25）（25）を
嵌着すると、第３図に示すようなシリンダ部（30）が形
成される。The die-cast mold protrusions (22) (22) are horizontally projected inside the die-cast molds (21a) (21b) and projecting at the scavenging holes (8) (8) of the cylinder liner (2). Since the injected molten metal is solidified, the die-cast molds (21a) and (21b) are shown in the direction of the arrow (side) shown in FIG. 1 (A).
When removed, the die cast die protrusions (22) (22) are also easily pulled out and removed to form the scavenging passage horizontal portions (29a) (29a) penetrating to the outside and the die cast die Since the protrusions (23) (23) are erected on the die cast mold (21c) and abut on the lower side of the die cast mold protrusions (22) (22), the die cast mold (21c) is When it is removed in the direction of the arrow (downward) shown in FIG. 1 (A), the die cast die projections (23) (23) are also easily pulled out and removed, and communicated with the horizontal portions (29a) (29a) of the scavenging passage. The scavenging path vertical portion (29b) (29b) is connected to the scavenging path vertical portion (29b).
b) (29b) is formed parallel to the cylinder axis, and when the blind plugs (25) (25) are fitted in the lateral portions of the horizontal portions (29a) (29a) of the scavenging passage, as shown in FIG. A cylinder part (30) is formed.
前記盲栓（25）は、第２図に示すように掃気通路（29a,
b）の一部内壁を形成する部分（25a）を有し、掃気路水
平部分（29a）の側方部内に圧入、あるいはネジ止めに
より嵌着される。図中（21′ｄ）は排気路形成用の突出
部、（21′ｅ）は、給気路形成用の突出部である。As shown in FIG. 2, the blind plug (25) has a scavenging passage (29a,
b) has a part (25a) which partially forms an inner wall, and is fitted into the side part of the horizontal part (29a) of the scavenging passage by press fitting or screwing. In the figure, (21'd) is a protrusion for forming an exhaust passage, and (21'e) is a protrusion for forming an air supply passage.
掃気路水平部分（29a）の一部と掃気路垂直部分（29b）
で一連に形成された掃気通路（29a,b）は、掃気孔
（８）に達するまでに掃気を十分に助走かつ偏向させて
流通する助走路を形成し、掃気孔（８）からシリンダ内
に流入する掃気は、反排気孔側へ強く方向性を持った流
れとなり掃気性能が著しく向上される。Part of horizontal part of scavenging passage (29a) and vertical part of scavenging passage (29b)
The scavenging passages (29a, b) formed in sequence form a scavenging passage through which the scavenging air is sufficiently run and deflected before reaching the scavenging hole (8), and the scavenging hole (8) enters the cylinder from the scavenging hole (8). The scavenging air flowing in becomes a strong directional flow to the side opposite to the exhaust hole, and the scavenging performance is significantly improved.
（発明の効果） 本発明は、前述のような構成からなり、ダイキャスト型
の内側に突設されてシリンダライナの掃気孔部に当接し
た掃気路水平部分形成用のダイキャスト型突出部によ
り、掃気孔に連通した掃気路水平部分が形成され、ダイ
キャスト型の内側に立設されて前記ダイキャスト突出部
の下側に当接した掃気垂直部分形成用のダイキャスト型
突出部により、掃気路水平部分に連通した掃気路垂直部
分が形成されるとともに、前記両ダイキャスト型突出部
は容易に抜き取って外すことができ、掃気路水平部分に
盲栓を嵌着して掃気通路が形成され、該掃気路水平部分
が掃気の助走路となり掃気の吹き抜けが防止されて、掃
気性能が高められ燃費が著しく節減される。(Advantages of the Invention) The present invention has the above-described structure, and includes a die-cast die protrusion for forming a horizontal portion of a scavenging passage that is provided inside the die-cast die and abuts the scavenging hole of the cylinder liner. , A scavenging passage horizontal portion that communicates with the scavenging hole is formed, and the scavenging air is scavenged by the die-casting die protrusion for forming the scavenging vertical portion that is erected inside the die-casting die and abuts the lower side of the die-casting protrusion portion. A vertical portion of the scavenging passage communicating with the horizontal portion of the scavenging passage is formed, and both of the die-cast die protrusions can be easily extracted and removed, and a scavenging passage is formed by fitting a blind plug into the horizontal portion of the scavenging passage. The horizontal portion of the scavenging passage serves as an auxiliary passage for scavenging, preventing blow-through of scavenging, improving scavenging performance, and significantly reducing fuel consumption.
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described with reference to the embodiments, the present invention is of course not limited to such embodiments, and various design modifications can be made without departing from the spirit of the present invention. .
第１図（Ａ）は本発明の一実施例を示す縦断面図、第１
図（Ｂ）は第１図（Ａ）の他面側の縦断面図、第２図
（Ａ）（Ｂ）は盲栓の平面図と側面図、第３図は実施例
のシリンダ部縦断面図、第４図は従来例の２サイクルエ
ンジンの縦断面図、第５図は第４図のＶ−Ｖ部分の断面
図、第６図は第５図のVI−VI部分の断面図、第７図は従
来例のシリンダ部成形法を示す縦断面図、第８図は第７
図の他面側の縦断面図、第９図は第７図のIX−IX部分の
断面図、第10図は他の従来例のダイキャスト型を示す縦
断面図である。 2:シリンダライナ、8:掃気孔 11a,b,c,d,e:ダイキャスト型 22,23:ダイキャスト型突出部 25:盲栓、29a:掃気路水平部分 29b:掃気路垂直部分FIG. 1 (A) is a longitudinal sectional view showing an embodiment of the present invention.
Figure (B) is a vertical sectional view of the other side of Figure 1 (A), Figures 2 (A) and (B) are a plan view and a side view of the blind plug, and Figure 3 is a vertical sectional view of the cylinder portion of the embodiment. Fig. 4, Fig. 4 is a longitudinal sectional view of a conventional two-cycle engine, Fig. 5 is a sectional view of a VV portion of Fig. 4, Fig. 6 is a sectional view of a VI-VI portion of Fig. 5, FIG. 7 is a longitudinal sectional view showing a conventional cylinder portion forming method, and FIG.
FIG. 9 is a vertical cross-sectional view of the other side of the drawing, FIG. 9 is a cross-sectional view of IX-IX portion of FIG. 7, and FIG. 10 is a vertical cross-sectional view showing another conventional die-cast mold. 2: Cylinder liner, 8: Scavenging hole 11a, b, c, d, e: Die cast type 22,23: Die cast type protrusion 25: Blind plug, 29a: Horizontal part of scavenging passage 29b: Vertical part of scavenging passage
フロントページの続き (56)参考文献 特開 昭52−7824（ＪＰ，Ａ) 特開 昭60−148657（ＪＰ，Ａ) 特開 昭52−57021（ＪＰ，Ａ) 実開 昭53−143811（ＪＰ，Ｕ)Continuation of the front page (56) References JP-A-52-7824 (JP, A) JP-A-60-148657 (JP, A) JP-A-52-57021 (JP, A) Actual development Sho-53-143811 (JP , U)
Claims (1)
エンジンのシリンダ部の鋳込み成形に際し、複数のダイ
キャスト型で内部に形成されたシリンダ部形成スペース
内にシリンダライナをセットして、前記ダイキャスト型
の内側に前記シリンダライナの掃気孔部に当接した掃気
路水平部分形成用のダイキャスト型突出部を突設すると
ともに前記ダイキャスト型突出部の下側に当接した掃気
路垂直部分形成用のダイキャスト型突出部を立設して前
記スペース内に配置し、前記スペース内に溶融金属を注
入して凝固せしめたのち前記各ダイキャスト型を外し、
前記掃気路水平部分の側方部内に盲栓を嵌挿して掃気通
路を形成することを特徴とする２サイクルのエンジンの
シリンダ部成形法。1. When casting a cylinder part of a schnee scavenging type two-cycle crank compression engine, a cylinder liner is set in a cylinder part forming space formed inside by a plurality of die-casting molds so that the die-casting mold A scavenging passage horizontal portion abutting on the scavenging hole portion of the cylinder liner is provided on the inside thereof to form a die-casting die projection portion, and a scavenging passage vertical portion abutting on the lower side of the die-casting die protrusion portion is formed. Disposed in the space by standing up the die-cast mold protrusion, and after removing the die-cast mold after injecting molten metal into the space to solidify,
A method for molding a cylinder portion of a two-cycle engine, wherein a blind plug is inserted into a lateral portion of the horizontal portion of the scavenging passage to form a scavenging passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62237506A JPH0696185B2 (en) | 1987-09-24 | 1987-09-24 | Cylinder molding method for 2-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62237506A JPH0696185B2 (en) | 1987-09-24 | 1987-09-24 | Cylinder molding method for 2-cycle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6483359A JPS6483359A (en) | 1989-03-29 |
| JPH0696185B2 true JPH0696185B2 (en) | 1994-11-30 |
Family
ID=17016328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62237506A Expired - Fee Related JPH0696185B2 (en) | 1987-09-24 | 1987-09-24 | Cylinder molding method for 2-cycle engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696185B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002311A (en) * | 2007-06-25 | 2009-01-08 | Ihi Shibaura Machinery Corp | Two-cycle engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008108833A (en) * | 2006-10-24 | 2008-05-08 | Sharp Corp | Substrate and board assembly method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831461A (en) * | 1981-08-19 | 1983-02-24 | Fujitsu Ltd | Control system of magnetic tape device |
| JPS59134323A (en) * | 1983-01-19 | 1984-08-02 | Nippon Clean Engine Res | Time difference collision stratified scavenging type 2-cycle engine |
| JPS60148658A (en) * | 1984-01-17 | 1985-08-05 | Fuji Heavy Ind Ltd | Production of two-cycle cylinder by die casting |
-
1987
- 1987-09-24 JP JP62237506A patent/JPH0696185B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002311A (en) * | 2007-06-25 | 2009-01-08 | Ihi Shibaura Machinery Corp | Two-cycle engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6483359A (en) | 1989-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |