JPS62135812U - - Google Patents
Info
- Publication number
- JPS62135812U JPS62135812U JP2206186U JP2206186U JPS62135812U JP S62135812 U JPS62135812 U JP S62135812U JP 2206186 U JP2206186 U JP 2206186U JP 2206186 U JP2206186 U JP 2206186U JP S62135812 U JPS62135812 U JP S62135812U
- Authority
- JP
- Japan
- Prior art keywords
- supercharger
- internal combustion
- combustion engine
- mode
- manifold pressure
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Fluid-Driven Valves (AREA)
Description
第１図は本考案の一実施例を示すブローバイガ
ス還元装置の構成図、第２図は同切換弁の断面図
、第３図は本考案の他の実施例を示すブローバイ
ガス還元装置の構成図、第４図は従来の過給機を
有しない内燃エンジンのブローバイガス還元装置
の構成図、第５図及び第６図は従来の過給機を有
する内燃エンジンのブローバイガス還元装置の問
題点を説明するための構成図である。
１…内燃エンジン、１ａ…吸気ポート、２…ロ
ツカーカバー（換気すべき室）、３…吸気路、４
…スロツトルバルブ、５…第１連通路、６…第２
連通路、１０…過給機、１１，１１′…切換弁（
切換手段）。
Fig. 1 is a configuration diagram of a blow-by gas reducing device showing one embodiment of the present invention, Fig. 2 is a sectional view of the same switching valve, and Fig. 3 is a configuration diagram of a blow-by gas reducing device showing another embodiment of the present invention. Figure 4 is a block diagram of a conventional blow-by gas reduction device for an internal combustion engine without a supercharger, and Figures 5 and 6 show problems with a conventional blow-by gas reduction device for an internal combustion engine that has a supercharger. FIG. 2 is a configuration diagram for explaining. DESCRIPTION OF SYMBOLS 1... Internal combustion engine, 1a... Intake port, 2... Locker cover (chamber to be ventilated), 3... Intake path, 4
...Throttle valve, 5...First communication passage, 6...Second
Communication path, 10...Supercharger, 11, 11'...Switching valve (
switching means).
Claims (1)
との間に過給機を配設してなる過給機付内燃エン
ジンにおいて、前記エンジンの換気すべき室内と
前記過給機の上、下流とを連通する連通路を設け
ると共に、該連通路に、前記過給機下流側の吸気
マニホルド圧力に応じて前記換気すべき室内と前
記過給機の上流とが連通する第１態様及び前記換
気すべき室内と前記過給機の下流とが連通する第
２態様に択一的に切り換える切換手段を設けてな
り、前記吸気マニホルド圧力が所定値以上の時は
前記第１態様に且つ前記吸気マニホルド圧力が所
定値以下の時は前記第２態様に切り換えることを
特徴とする過給機付内燃エンジンのブローバイガ
ス還元装置。 In a supercharged internal combustion engine in which a supercharger is disposed between an intake port and a throttle valve of the internal combustion engine, a ventilated interior of the engine is communicated with above and downstream of the supercharger. A first aspect in which a communication passage is provided, and the communication passage communicates between the room to be ventilated and the upstream side of the supercharger according to the intake manifold pressure on the downstream side of the supercharger; A switching means is provided for selectively switching to a second mode in which communication is made with the downstream side of the supercharger, and when the intake manifold pressure is equal to or higher than a predetermined value, the switching means switches to the first mode and the intake manifold pressure is at a predetermined value. A blow-by gas reduction device for a supercharged internal combustion engine, characterized in that the device switches to the second mode in the following cases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2206186U JPS62135812U (en) | 1986-02-20 | 1986-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2206186U JPS62135812U (en) | 1986-02-20 | 1986-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62135812U true JPS62135812U (en) | 1987-08-26 |
Family
ID=30819083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2206186U Pending JPS62135812U (en) | 1986-02-20 | 1986-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62135812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013132577A1 (en) * | 2012-03-05 | 2013-09-12 | トヨタ自動車 株式会社 | Internal combustion engine |
-
1986
- 1986-02-20 JP JP2206186U patent/JPS62135812U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013132577A1 (en) * | 2012-03-05 | 2013-09-12 | トヨタ自動車 株式会社 | Internal combustion engine |
| CN104204432A (en) * | 2012-03-05 | 2014-12-10 | 丰田自动车株式会社 | Internal combustion engine |
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