JPH0222629U - - Google Patents
Info
- Publication number
- JPH0222629U JPH0222629U JP10125688U JP10125688U JPH0222629U JP H0222629 U JPH0222629 U JP H0222629U JP 10125688 U JP10125688 U JP 10125688U JP 10125688 U JP10125688 U JP 10125688U JP H0222629 U JPH0222629 U JP H0222629U
- Authority
- JP
- Japan
- Prior art keywords
- scavenging
- passage
- centrifugal
- speed
- pump
- 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
- 230000002000 scavenging effect Effects 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Supercharger (AREA)
Description
第１図は本考案の掃気ポンプ付２サイクルエン
ジンの実施例の概略を示す構成図、第２図は要部
の制御系を示す図、第３図は断熱効率と弁動作状
態を示した図、第４図ａ，ｂと第５図ａ，ｂは他
の実施例の構成図、断熱効率と弁動作状態を示す
図である。
１……２サイクルエンジン本体、１ｂ……掃気
ポート、２……シリンダ、２１……吸気管、２２
ａ……第１掃気通路、２２ｂ……第２掃気通路、
２４ａ……低速用遠心式掃気ポンプ、２４ｂ……
高速用遠心式掃気ポンプ、２５……軸、２６……
伝動機構、２７ａ……低速用逃し通路、２７ｂ…
…高速用逃し通路、３１……制御弁、３２……バ
イパス通路。
Fig. 1 is a block diagram showing the outline of an embodiment of a two-stroke engine with a scavenging pump according to the present invention, Fig. 2 is a diagram showing the main control system, and Fig. 3 is a diagram showing adiabatic efficiency and valve operation status. , FIGS. 4a and 4b and FIGS. 5a and 5b are block diagrams of other embodiments, and diagrams showing adiabatic efficiency and valve operating states. 1... Two-cycle engine body, 1b... Scavenging port, 2... Cylinder, 21... Intake pipe, 22
a...first scavenging passage, 22b...second scavenging passage,
24a...Low speed centrifugal scavenging pump, 24b...
High-speed centrifugal scavenging pump, 25...shaft, 26...
Transmission mechanism, 27a...Low speed relief passage, 27b...
...high-speed relief passage, 31...control valve, 32...bypass passage.
Claims (1)
掃気ポートと吸気管との間に、低速用遠心式掃気
ポンプと高速用の遠心式掃気ポンプを介装した第
１掃気通路と第２掃気通路とを並列に連設し、上
記各遠心式掃気ポンプをバイパスして逃し通路を
形成し、 負荷に応じて掃気量を制御するための制御弁を
有するバイパス通路を、上記各掃気通路に並列に
設け、上記各遠心式掃気ポンプを上記エンジン本
体側に伝動構成し、 エンジン回転数により上記低速用掃気ポンプか
高速用掃気ポンプのいずれか一方の掃気ポンプで
掃気するように上記各掃気通路あるいは各逃し通
路を開閉する手段を設けたことを特徴とする掃気
ポンプ付２サイクルエンジン。[Scope of Claim for Utility Model Registration] A first scavenging passage in which a low-speed centrifugal scavenging pump and a high-speed centrifugal scavenging pump are interposed between a scavenging port opening into a cylinder of a two-stroke engine body and an intake pipe; A second scavenging passage is connected in parallel to form a relief passage by bypassing each of the centrifugal scavenging pumps, and a bypass passage having a control valve for controlling the scavenging amount according to the load is connected to each of the scavenging passages. The centrifugal scavenging pumps are installed in parallel in the passage, and each of the centrifugal scavenging pumps is configured to transmit transmission to the engine main body side, and each of the above centrifugal scavenging pumps is configured so that depending on the engine rotation speed, scavenging is performed by either the low-speed scavenging pump or the high-speed scavenging pump. A two-stroke engine equipped with a scavenging pump, characterized in that a means for opening and closing a scavenging passage or each relief passage is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10125688U JPH0222629U (en) | 1988-07-30 | 1988-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10125688U JPH0222629U (en) | 1988-07-30 | 1988-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222629U true JPH0222629U (en) | 1990-02-15 |
Family
ID=31330088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10125688U Pending JPH0222629U (en) | 1988-07-30 | 1988-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222629U (en) |
-
1988
- 1988-07-30 JP JP10125688U patent/JPH0222629U/ja active Pending
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