JPS628360Y2 - - Google Patents
Info
- Publication number
- JPS628360Y2 JPS628360Y2 JP1979176381U JP17638179U JPS628360Y2 JP S628360 Y2 JPS628360 Y2 JP S628360Y2 JP 1979176381 U JP1979176381 U JP 1979176381U JP 17638179 U JP17638179 U JP 17638179U JP S628360 Y2 JPS628360 Y2 JP S628360Y2
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- air
- flow meter
- air flow
- intake passage
- 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.)
- Expired
Links
- 239000000446 fuel Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003502 gasoline Substances 0.000 claims description 2
- 239000003570 air Substances 0.000 description 27
- 241000234435 Lilium Species 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Supercharger (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
【考案の詳細な説明】
本考案はガソリン機関に用いられるターボチヤ
ージヤを備えた内燃機関用混合気供給装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixture supply device for an internal combustion engine equipped with a turbocharger used in a gasoline engine.
ターボチヤージヤと燃料噴射装置とを組み合せ
た内燃機関用混合気供給装置は特開昭53−146026
号公報に記載されている如く、ターボチヤージヤ
を構成する排気タービンで駆動されるコンプレツ
サの上流にベーン型エアフローメータを設けた構
造となつている。 A mixture supply device for an internal combustion engine that combines a turbocharger and a fuel injection device is disclosed in Japanese Patent Application Laid-Open No. 53-146026.
As described in the publication, the structure is such that a vane type air flow meter is provided upstream of a compressor driven by an exhaust turbine that constitutes a turbocharger.
ところで、コンプレツサが作動すると空気温度
が上昇するが、ベーン型エアフローメータを使用
したものでは空気温度の補償ができなく、別個に
空気温度センサを設ける必要があつた。 Incidentally, when the compressor operates, the air temperature rises, but it is not possible to compensate for the air temperature using a vane type air flow meter, and it is necessary to provide a separate air temperature sensor.
更に、この他コンプレツサの下流に差圧式エア
フローメータを設けるものが特開昭53−134109号
公報に記載されている。 Furthermore, Japanese Patent Application Laid-open No. 134109/1983 describes a compressor in which a differential pressure air flow meter is provided downstream of the compressor.
しかしながら、この方法もコンプレツサ作動に
伴う空気温度の上昇を補償するため、別個に空気
温度センサを設ける必要があつた。 However, this method also requires the provision of a separate air temperature sensor in order to compensate for the increase in air temperature accompanying compressor operation.
本考案の目的はコンプレツサの作動に伴う質量
流量の変化の影響がなく、新たな空気温度センサ
を必要としない内燃機関用混合気供給装置を提供
するにある。 An object of the present invention is to provide a mixture supply system for an internal combustion engine that is not affected by changes in mass flow rate due to compressor operation and does not require a new air temperature sensor.
本考案の特徴は、コンプレツサと電磁燃料噴射
弁の間に質量流量を検知する質量流量検知形エア
フローメータを設けたところにある。 The feature of the present invention is that a mass flow rate sensing type air flow meter is provided between the compressor and the electromagnetic fuel injection valve to detect the mass flow rate.
以下、図面に従つて、本考案を詳細に説明す
る。 The present invention will be described in detail below with reference to the drawings.
エアクリーナ１からの空気は、ターボチヤージ
ヤ２を構成する排気タービン２１で駆動されるコ
ンプレツサ２２、スロツトルチヤンバ３、マニホ
ルド４を経てエンジン５に供給される。又、エン
ジンの回転、エアフローメータ等の信号がコンピ
ユータ６に入力されテーブル検索又は、計算によ
り、必要流量に相当する電気信号をインジエクタ
７に送ることにより、燃料流量が決められる。 Air from the air cleaner 1 is supplied to the engine 5 through a compressor 22 driven by an exhaust turbine 21 forming a turbocharger 2, a throttle chamber 3, and a manifold 4. Further, signals from the engine rotation, air flow meter, etc. are input to the computer 6, and the fuel flow rate is determined by table search or calculation and by sending an electrical signal corresponding to the required flow rate to the injector 7.
エアフローメータは、質量流量を検出する質量
流量形エアフローメータでベンチユリ８に開口す
るバイパス通路９内に、感熱抵抗１０，１１を設
けたものであり、スロツトルチヤンバに内蔵して
ある。このエアフローメータは２つの感熱抵抗１
０，１１よりなり１つは周囲の空気流速を検知す
るものであり、もう１つは、周囲の空気温度を感
知し、前記、空気流速検知の感熱抵抗の出力を、
信号処理回路１２により、空気温度変化による空
気密度変化を補正するようになつている。 The air flow meter is a mass flow type air flow meter for detecting mass flow rate, and has heat sensitive resistors 10 and 11 provided in a bypass passage 9 opening to the bench lily 8, and is built in the throttle chamber. This air flow meter has two heat sensitive resistors 1
0 and 11, one detects the ambient air flow velocity, the other detects the ambient air temperature, and the output of the heat-sensitive resistor for detecting the air velocity is
The signal processing circuit 12 is designed to correct changes in air density due to changes in air temperature.
尚、１３は燃料タンク、１４は燃料ポンプ、１
５は圧力レギユレータであり、１６は排気タービ
ン２１が設けられる排気通路である。また空気量
はスロツトルチヤンバ３に設けたスロツトルバル
ブ１７で制御される。 In addition, 13 is a fuel tank, 14 is a fuel pump, 1
5 is a pressure regulator, and 16 is an exhaust passage in which an exhaust turbine 21 is provided. Further, the amount of air is controlled by a throttle valve 17 provided in the throttle chamber 3.
以上において、ターボチヤージヤ２のコンプレ
ツサ２２下流側に、質量流量検知形エアフローセ
ンサを設置したため、加給された吸入空気の温度
がターボチヤージヤの機械的損失により常温から
130℃程度に加熱されて空気密度が変化しても、
常に空気の質量流量を測定したことと同等の結果
が得られる。 In the above, since the mass flow rate detection type air flow sensor is installed downstream of the compressor 22 of the turbocharger 2, the temperature of the supplied intake air changes from normal temperature due to the mechanical loss of the turbocharger.
Even if the air density changes due to heating to around 130℃,
Results equivalent to always measuring the mass flow rate of air can be obtained.
以上のように、ターボチヤージヤの下流に質量
流量検知形エアフローメータを設けたため、空気
温度変化に対し、常にその質量流量を検知するの
で、インジエクタから噴出される燃料流量も温度
変化に対しても一定となり最適混合比に設定でき
る。 As mentioned above, since the mass flow rate detection type air flow meter is installed downstream of the turbocharger, the mass flow rate is constantly detected in response to changes in air temperature, so the flow rate of fuel injected from the injector is also constant regardless of temperature changes. Can be set to the optimum mixing ratio.
図面は本考案実施例の説明図である。
１……エアクリーナ、２……ターボチヤージ
ヤ、３……スロツトルチヤンバ、４……吸入マニ
ホルド、５……エンジン、６……コンピユータ、
８……ベンチユリ、９……バイパス通路、１０，
１１……感熱抵抗、２１……排気タービン、２２
……コンプレツサ、１７……スロツトルバルブ、
７……インジエクタ。
The drawings are explanatory diagrams of embodiments of the present invention. 1... Air cleaner, 2... Turbo charger, 3... Throttle chamber, 4... Intake manifold, 5... Engine, 6... Computer,
8... Bench lily, 9... Bypass passage, 10,
11... Heat sensitive resistor, 21... Exhaust turbine, 22
...Compressor, 17...Throttle valve,
7...Injector.
Claims (1)
エクタ、前記吸気通路を流れる空気流量を測定
するエアフローメータ、前記吸気通路を流れる
空気を加圧する排気タービン駆動のコンプレツ
サとを備えてなる内燃機関用混合気供給装置に
おいて、前記インジエクタと前記コンプレツサ
の間の前記吸気通路に質量流量を検知する質量
流量検知形エアフローメータを設けたことを特
徴とする内燃機関用混合気供給装置。 ２ 実用新案登録請求の範囲第１項において、前
記質量流量検知形エアフローメータは熱線式エ
アフローメータである内燃機関用混合気供給装
置。[Claims for Utility Model Registration] 1. An injector disposed in an intake passage of a gasoline engine, an air flow meter that measures the flow rate of air flowing through the intake passage, and an exhaust turbine-driven compressor that pressurizes the air flowing through the intake passage. What is claimed is: 1. A mixture supply system for an internal combustion engine, characterized in that a mass flow rate detection type air flow meter for detecting a mass flow rate is provided in the intake passage between the injector and the compressor. 2 Utility Model Registration Scope of Claim 1. The air-fuel mixture supply device for an internal combustion engine, wherein the mass flow rate detection type air flow meter is a hot wire type air flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979176381U JPS628360Y2 (en) | 1979-12-21 | 1979-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979176381U JPS628360Y2 (en) | 1979-12-21 | 1979-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5694833U JPS5694833U (en) | 1981-07-28 |
| JPS628360Y2 true JPS628360Y2 (en) | 1987-02-26 |
Family
ID=29687021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979176381U Expired JPS628360Y2 (en) | 1979-12-21 | 1979-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS628360Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822431U (en) * | 1981-08-05 | 1983-02-12 | スズキ株式会社 | Injected fuel correction device in fuel injection engine |
| JPH06584Y2 (en) * | 1984-10-31 | 1994-01-05 | マツダ株式会社 | Engine intake system |
| JP2008175150A (en) * | 2007-01-19 | 2008-07-31 | Hitachi Ltd | Air flow rate measuring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948893A (en) * | 1972-09-13 | 1974-05-11 | ||
| JPS5376213A (en) * | 1976-12-17 | 1978-07-06 | Saab Scania Ab | Turbo charger |
| JPS5381159A (en) * | 1976-10-28 | 1978-07-18 | Degussa | Measuring apparatus for flow speed of gases |
| JPS53134109A (en) * | 1977-04-28 | 1978-11-22 | Torao Konno | Air charging device of fuel system for internal combustion engine |
| JPS5435516A (en) * | 1977-08-24 | 1979-03-15 | Nissan Motor Co Ltd | Controller of top speed of car of loading engine with supercharger |
| JPS54158524A (en) * | 1978-06-02 | 1979-12-14 | Hitachi Ltd | Engine suction air volume measuring device for car |
-
1979
- 1979-12-21 JP JP1979176381U patent/JPS628360Y2/ja not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948893A (en) * | 1972-09-13 | 1974-05-11 | ||
| JPS5381159A (en) * | 1976-10-28 | 1978-07-18 | Degussa | Measuring apparatus for flow speed of gases |
| JPS5376213A (en) * | 1976-12-17 | 1978-07-06 | Saab Scania Ab | Turbo charger |
| JPS53134109A (en) * | 1977-04-28 | 1978-11-22 | Torao Konno | Air charging device of fuel system for internal combustion engine |
| JPS5435516A (en) * | 1977-08-24 | 1979-03-15 | Nissan Motor Co Ltd | Controller of top speed of car of loading engine with supercharger |
| JPS54158524A (en) * | 1978-06-02 | 1979-12-14 | Hitachi Ltd | Engine suction air volume measuring device for car |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5694833U (en) | 1981-07-28 |
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