JPS62110569U - - Google Patents
Info
- Publication number
- JPS62110569U JPS62110569U JP20268885U JP20268885U JPS62110569U JP S62110569 U JPS62110569 U JP S62110569U JP 20268885 U JP20268885 U JP 20268885U JP 20268885 U JP20268885 U JP 20268885U JP S62110569 U JPS62110569 U JP S62110569U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- hydraulic piston
- hydraulic
- switching valve
- communication groove
- 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
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図乃至第６図は本考案の実施例を示し、第
１図は４サイクルエンジンの要部概略説明図、第
２図は出力室の概略断面図、第３図〜第６図は出
力室の動作態様を示す概略説明図、第７図は従来
技術を示すユニツトインジエクタのプランジヤ駆
動装置の概略説明図である。
１…ピストン、２…コンロツド、３…クランク
軸、４…動力取出し用滑子クランク機構、５…ポ
ンプ駆動部、６…プツシユロツド、７…油柱室、
８…油圧ピストン、１０…ユニツトインジエクタ
、１２…１０のプランジヤ、１４…吸入弁、１５
…送油ポンプ、１６…開閉切換弁、１７…連通溝
、１８…油圧シリンダ、２０…出口孔、２２…ピ
ストン間けつ回転機構、Ｅ…４サイクルエンジン
、Ｓ…８の軸心方向。
Figures 1 to 6 show an embodiment of the present invention, Figure 1 is a schematic explanatory diagram of the main parts of a 4-stroke engine, Figure 2 is a schematic sectional view of the output chamber, and Figures 3 to 6 are output FIG. 7 is a schematic explanatory diagram showing the operating mode of the chamber, and FIG. 7 is a schematic explanatory diagram of a plunger drive device of a unit injector showing the prior art. DESCRIPTION OF SYMBOLS 1...Piston, 2...Conrod, 3...Crankshaft, 4...Slide crank mechanism for power extraction, 5...Pump drive section, 6...Push rod, 7...Oil column chamber,
8...Hydraulic piston, 10...Unit injector, 12...Plunger of 10, 14...Suction valve, 15
...Oil pump, 16...Opening/closing switching valve, 17...Communication groove, 18...Hydraulic cylinder, 20...Outlet hole, 22...Piston inter-piston rotation mechanism, E...4-cycle engine, S...8 axis direction.
Claims (1)
ツド２及びクランク軸３からなる動力取出し用滑
子クランク機構４の一部にポンプ駆動部５を設け
、ポンプ駆動部５にプツシユロツド６、油柱室７
内の油柱及び油圧ピストン８を介してユニツトイ
ンジエクタ１０のプランジヤ１２を連動連結し、
油柱室７を一方では吸入弁１４を介して送油ポン
プ１５に連通するとともに、他方では開閉切換弁
１６に連通し、開閉切換弁１６はエンジンＥの圧
縮工程で閉じるが排気工程で開くように構成した
事を特徴とする４サイクルエンジンのユニツトイ
ンジエクタのプランジヤ駆動装置。 ２ 開閉切換弁１６は油圧ピストン８の周面に軸
心方向Ｓに長く形成した連通溝１７と、油圧ピス
トン８に外嵌する油圧シリンダ１８に空けた出口
孔２０と、油圧ピストン８を回転させて連通溝１
７を出口孔２０に連通する状態と閉止する状態と
に切換えるために油圧ピストン８と油圧シリンダ
１８との摺動面間に設けたピストン間けつ回転機
構２２とから成ることを特徴とする実用新案登録
請求の範囲第１項記載の４サイクルエンジンのユ
ニツトインジエクタのプランジヤ駆動装置。[Claims for Utility Model Registration] 1. A pump drive unit 5 is provided in a part of a power take-off slide crank mechanism 4 consisting of a piston 1, a connecting rod 2, and a crankshaft 3 of a 4-cycle engine E, and a push rod is provided in the pump drive unit 5. 6. Oil column room 7
The plunger 12 of the unit injector 10 is interlocked and connected via the oil column inside and the hydraulic piston 8,
The oil column chamber 7 is connected to an oil pump 15 via an intake valve 14 on one side, and to an on-off switching valve 16 on the other side, so that the on-off switching valve 16 closes during the compression stroke of the engine E but opens during the exhaust stroke. A plunger drive device for a unit injector of a 4-cycle engine, characterized in that it is configured as follows. 2. The on/off switching valve 16 has a communication groove 17 formed on the circumferential surface of the hydraulic piston 8 to be long in the axial direction S, an outlet hole 20 formed in the hydraulic cylinder 18 that fits around the hydraulic piston 8, and a communication groove 17 that rotates the hydraulic piston 8. Communication groove 1
A utility model characterized by comprising a piston inter-piston rotation mechanism 22 provided between the sliding surfaces of the hydraulic piston 8 and the hydraulic cylinder 18 in order to switch between a state in which the piston 7 communicates with the outlet hole 20 and a state in which it is closed. A plunger drive device for a unit injector of a four-stroke engine as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20268885U JPS62110569U (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20268885U JPS62110569U (en) | 1985-12-27 | 1985-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62110569U true JPS62110569U (en) | 1987-07-14 |
Family
ID=31167305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20268885U Pending JPS62110569U (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62110569U (en) |
-
1985
- 1985-12-27 JP JP20268885U patent/JPS62110569U/ja active Pending
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