JPS6228045U - - Google Patents
Info
- Publication number
- JPS6228045U JPS6228045U JP11933685U JP11933685U JPS6228045U JP S6228045 U JPS6228045 U JP S6228045U JP 11933685 U JP11933685 U JP 11933685U JP 11933685 U JP11933685 U JP 11933685U JP S6228045 U JPS6228045 U JP S6228045U
- Authority
- JP
- Japan
- Prior art keywords
- roots pump
- atmosphere
- bleed
- combustion engine
- internal combustion
- 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 3
- 239000012530 fluid Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Supercharger (AREA)
Description
第１図は本考案に係るルーツポンプを備えた過
給機付内燃機関の概略図、第２図はルーツポンプ
より成る過給機の断面図、第３図は本考案に係る
ブリード制御弁の制御の一態様を示すフローチヤ
ート図、第４図はルーツポンプの作動領域を説明
する線図。
４……過給機（ルーツポンプ）、７，８……通
路、９……制御弁、１３……コンピユータ、２１
，４０……ロータ、２２，２３……ロータシヤフ
ト、２７……オイルシール、２８……軸受、４７
……環状空間、４８……ポート、５０……ハウジ
ング、５１……リアプレート。
Fig. 1 is a schematic diagram of a supercharged internal combustion engine equipped with a Roots pump according to the present invention, Fig. 2 is a sectional view of a supercharger comprising a Roots pump, and Fig. 3 is a diagram of a bleed control valve according to the present invention. FIG. 4 is a flowchart diagram showing one mode of control, and FIG. 4 is a diagram explaining the operating range of the Roots pump. 4... Supercharger (roots pump), 7, 8... Passage, 9... Control valve, 13... Computer, 21
, 40... Rotor, 22, 23... Rotor shaft, 27... Oil seal, 28... Bearing, 47
... annular space, 48 ... port, 50 ... housing, 51 ... rear plate.
Claims (1)
支承される２個のロータ２１，４０がハウジング
内周面との間に所定のクリアランスを保ちつつ相
互にかみ合いながら回転して一回転後に定容積の
流体を吸入側から吐出側に吸排するルーツポンプ
式過給機を備えた内燃機関において、ロータシヤ
フト２２，２３の周囲でかつ、前記ロータ２１，
４０の端面と前記軸受２８のシール部２７との間
に形成される環状空間部４７を大気導入通路７，
８，４８を介して大気に接続すると共に、ルーツ
ポンプの作動時にのみ開弁する制御弁９を前記大
気導入通路に設けルーツポンプの作動、停止に合
わせて上記シール部に作用する圧力を大気にブリ
ード、ブリードカツトし得るようにしたことを特
徴とするルーツポンプ式過給機を備えた内燃機関
。 The two rotors 21 and 40, which are rotatably supported by bearings in the pump housing 50, rotate while meshing with each other while maintaining a predetermined clearance between them and the inner peripheral surface of the housing, and suck a fixed volume of fluid after one rotation. In an internal combustion engine equipped with a Roots pump type supercharger that sucks and discharges from the side to the discharge side, the rotor 21,
The annular space 47 formed between the end face of the bearing 40 and the seal portion 27 of the bearing 28 is connected to the atmosphere introduction passage 7,
A control valve 9 that is connected to the atmosphere via 8 and 48 and that opens only when the Roots pump is activated is provided in the atmosphere introduction passage, and controls the pressure acting on the seal portion to the atmosphere when the Roots pump is activated or stopped. An internal combustion engine equipped with a Roots pump type supercharger, which is characterized by being able to bleed and bleed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11933685U JPH0426660Y2 (en) | 1985-08-05 | 1985-08-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11933685U JPH0426660Y2 (en) | 1985-08-05 | 1985-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6228045U true JPS6228045U (en) | 1987-02-20 |
| JPH0426660Y2 JPH0426660Y2 (en) | 1992-06-26 |
Family
ID=31006611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11933685U Expired JPH0426660Y2 (en) | 1985-08-05 | 1985-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426660Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0250906U (en) * | 1988-10-05 | 1990-04-10 |
-
1985
- 1985-08-05 JP JP11933685U patent/JPH0426660Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0250906U (en) * | 1988-10-05 | 1990-04-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426660Y2 (en) | 1992-06-26 |
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