JPH0246026U - - Google Patents
Info
- Publication number
- JPH0246026U JPH0246026U JP12420888U JP12420888U JPH0246026U JP H0246026 U JPH0246026 U JP H0246026U JP 12420888 U JP12420888 U JP 12420888U JP 12420888 U JP12420888 U JP 12420888U JP H0246026 U JPH0246026 U JP H0246026U
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- intake
- compressor
- upstream
- turbocharger
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Supercharger (AREA)
Description
第１図はこの考案に係る吸気装置の一実施例を
示す構成説明図、第２図はリサーキユレーシヨン
バルブの圧力特性を示す特性図、第３図は遮断弁
の圧力特性を示す特性図、第４図はコントロール
ユニツトにおける制御の概略を示すフローチヤー
ト、第５図はこの実施例におけるコンプレツサ下
流側の圧力変化をリサーキユレーシヨンバルブな
らびに遮断弁を具備しない従来のものと比較して
示す特性図、第６図はリサーキユレーシヨンバル
ブを備えた従来の吸気装置の一構成例を示す構成
説明図、第７図はこのリサーキユレーシヨンバル
ブを具備した吸気装置におけるコンプレツサ下流
側の圧力変化をリサーキユレーシヨンバルブを具
備しないものと比較して示す特性図である。
１……内燃機関、３……絞弁、６……コンプレ
ツサ、９……エアフロメータ、１４……吸気戻し
通路、１５……リサーキユレーシヨンバルブ、２
１……遮断弁、２３……三方電磁弁、２７……絞
弁スイツチ、２８……コントロールユニツト。
Fig. 1 is a configuration explanatory diagram showing one embodiment of the intake device according to this invention, Fig. 2 is a characteristic diagram showing the pressure characteristics of the recirculation valve, and Fig. 3 is a characteristic diagram showing the pressure characteristics of the shutoff valve. , Fig. 4 is a flowchart showing the outline of control in the control unit, and Fig. 5 shows pressure changes on the downstream side of the compressor in this embodiment in comparison with a conventional one not equipped with a recirculation valve or a shutoff valve. Characteristic diagram, Fig. 6 is a configuration explanatory diagram showing an example of the configuration of a conventional intake device equipped with a recirculation valve, and Fig. 7 shows the pressure on the downstream side of the compressor in the intake device equipped with this recirculation valve. FIG. 3 is a characteristic diagram illustrating changes in comparison with that without a recirculation valve. 1... Internal combustion engine, 3... Throttle valve, 6... Compressor, 9... Air flow meter, 14... Intake return passage, 15... Recirculation valve, 2
1... Shutoff valve, 23... Three-way solenoid valve, 27... Throttle valve switch, 28... Control unit.
Claims (1)
に設けられるとともに、機関減速時にコンプレツ
サ下流から上流へ吸気を戻すリサーキユレーシヨ
ン機構を備えてなるターボチヤージヤ付内燃機関
の吸気装置において、上記絞弁の閉作動を検出す
る手段と、上記リサーキユレーシヨン機構の吸気
戻し口より上流側に配設され、かつ絞弁閉作動検
出時に吸気通路を閉じる遮断弁とを備えたことを
特徴とするターボチヤージヤ付内燃機関の吸気装
置。 In an intake system for an internal combustion engine with a turbocharger, the compressor of the turbocharger is provided upstream of the throttle valve, and a recirculation mechanism that returns intake air from downstream of the compressor to upstream when the engine decelerates, detects the closing operation of the throttle valve. and a cutoff valve disposed upstream of the intake return port of the recirculation mechanism and closing the intake passage when a throttle valve closing operation is detected. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988124208U JPH0625641Y2 (en) | 1988-09-22 | 1988-09-22 | Intake device for internal combustion engine with turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988124208U JPH0625641Y2 (en) | 1988-09-22 | 1988-09-22 | Intake device for internal combustion engine with turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0246026U true JPH0246026U (en) | 1990-03-29 |
| JPH0625641Y2 JPH0625641Y2 (en) | 1994-07-06 |
Family
ID=31373740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988124208U Expired - Lifetime JPH0625641Y2 (en) | 1988-09-22 | 1988-09-22 | Intake device for internal combustion engine with turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625641Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246815U (en) * | 1985-09-11 | 1987-03-23 |
-
1988
- 1988-09-22 JP JP1988124208U patent/JPH0625641Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246815U (en) * | 1985-09-11 | 1987-03-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0625641Y2 (en) | 1994-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0397543U (en) | ||
| JPS6158650U (en) | ||
| JPS6434439U (en) | ||
| JPH0278755U (en) | ||
| JPS5939738U (en) | cylinder number control engine | |
| JPS6149063U (en) | ||
| JPH0243431U (en) | ||
| JPS6049256U (en) | Diesel engine exhaust recirculation device | |
| JPS5985363U (en) | Diesel engine exhaust recirculation device | |
| JPS61183427U (en) | ||
| JPH0447154U (en) | ||
| JPS6173038U (en) | ||
| JPS62197744U (en) | ||
| JPS6214159U (en) | ||
| JPS62135837U (en) | ||
| JPS62203953U (en) | ||
| JPH03114545U (en) | ||
| JPH0228540U (en) | ||
| JPS6379461U (en) | ||
| JPS59102959U (en) | Diesel engine exhaust recirculation device | |
| JPH02118155U (en) | ||
| JPS6436537U (en) | ||
| JPH01118125U (en) | ||
| JPS62176440U (en) | ||
| JPS6197550U (en) |