JPS5954760A - Safety device of turbocharger - Google Patents

Safety device of turbocharger

Info

Publication number
JPS5954760A
JPS5954760A JP57165910A JP16591082A JPS5954760A JP S5954760 A JPS5954760 A JP S5954760A JP 57165910 A JP57165910 A JP 57165910A JP 16591082 A JP16591082 A JP 16591082A JP S5954760 A JPS5954760 A JP S5954760A
Authority
JP
Japan
Prior art keywords
air
passage
pressure
chamber
feed
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
Application number
JP57165910A
Other languages
Japanese (ja)
Inventor
Kenji Yogo
余吾　賢治
Kazushi Nomura
野村　一志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP57165910A priority Critical patent/JPS5954760A/en
Publication of JPS5954760A publication Critical patent/JPS5954760A/en
Priority to US06/825,540 priority patent/US4658798A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D23/00—Controlling engines characterised by their being supercharged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/23—Fuel aerating devices
    • F02M7/24—Controlling flow of aerating air
    • F02M7/28—Controlling flow of aerating air dependent on temperature or pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

PURPOSE:To reduce an air-fuel ratio when feed air pressure is abnormally high and to smoothly reduce the number of revolutions of an engine, by installing an air control valve which increases the amount of the air bled when the feed air pressure of a surge tank exceeds given pressure. CONSTITUTION:When feed air pressure within a surge tank 3 exceeds a set value, feed air pressure flows in a chamber 6a of an air control valve 6 through a passage 13 and is exerted on a flexible film member 8. As a result, member 7 is released from adhesion to a seat plate 11 against a spring 9, and the air flows in a chamber 6b through an air filter 12. Thereafter, the air flowing in the chamber 6b flows in an air introducing passage 4 of a carbretter 1 through an air passage 14. This enables reducing of an air ratio, and permits the smooth reduction of the number of revolutions of an engine when feed air pressure increases during high rotation.

Description

【発明の詳細な説明】 本発明は、ターボチャージャの安全装置に係わるもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety device for a turbocharger.

ターボチャージャを備えたキャブレタ装置においては、
給気圧が異常に高いとき燃料のカットを行い、エンジン
の破損するのを防止しているが、このカット時には、シ
ョックや急激な速度低示があり、エンジンに悪影響を与
えるばかりでなく、運転者にとってもまた危険であった
。In a carburetor device equipped with a turbocharger,
When the boost pressure is abnormally high, the fuel is cut to prevent engine damage. However, when this cut occurs, there is a shock and a sudden drop in speed, which not only has a negative impact on the engine, but also harms the driver. It was also dangerous.

本発明安全装置は、上記この問題点の解決を計ったもの
で、給気圧が異常に高いとき、スムーズにエンジンの回
転数を下げるようにしたものである。The safety device of the present invention is intended to solve this problem, and is designed to smoothly lower the engine speed when the air supply pressure is abnormally high.

即ち、ターボチャージャ付キャブレタにおいて、サージ
タンクの給気圧を信号とし、これが設定以上になったと
きに作動するエアーコントロールバルブを、キャブレタ
の空気導入通路とサージタンク間に設けたものである。That is, in a carburetor with a turbocharger, an air control valve is provided between the air introduction passage of the carburetor and the surge tank, using the supply pressure of the surge tank as a signal and operating when the pressure exceeds a set value.

従って、高回転時給気圧が高まったとき、前記エアーコ
ントロールバルブが作動して空燃比が薄くなり、異常燃
焼（デトネーション）によるエンジン破損等の危険性も
なくする。Therefore, when the supply pressure increases at high engine speeds, the air control valve operates to reduce the air-fuel ratio, eliminating the risk of engine damage due to abnormal combustion (detonation).

以下、本発明安全装置が実施態様を添付図により説明す
る。Hereinafter, embodiments of the safety device of the present invention will be explained with reference to the accompanying drawings.

１はキャブレタで、２はコンプレッサ、３はサージタン
クであり、４は空気導入通路、５は燃料通路である。1 is a carburetor, 2 is a compressor, 3 is a surge tank, 4 is an air introduction passage, and 5 is a fuel passage.

６はエアーコントロールバルブ 弁体内には、弁部材７を持つ可撓膜部材８が気密的に固
定され、スプリング９及びスプリング受板１０が配設さ
れると共に、前記弁ぶこざい７の弁座板１１が固定され
る。6 is an air control valve. A flexible membrane member 8 having a valve member 7 is airtightly fixed in the valve body of the air control valve. A spring 9 and a spring receiving plate 10 are arranged, and a valve seat of the valve block 7 is disposed. Plate 11 is fixed.

従つｔ８前記部材内には室６ａ、６ｂ’、・６Ｃ等グ区
：画中れる。尚、１２は室６Ｃ上に覆吟今れた見ア馬イ
ア□を示す。　　　　　　　　４′−一・・１３は、サ
ージタンク３・の内圧をエアーコント　。Accordingly, the member t8 is divided into chambers 6a, 6b', and 6C. Note that 12 indicates the horse □ that was covered over on the chamber 6C. 4'-1...13 is the air conditioner for the internal pressure of the surge tank 3.

ロールバルブの室６ａ伝達する通路で、１４は室６ｂと
前記空気導入通路４・とを結ぶ空気通路である。This is a passage for communicating with the chamber 6a of the roll valve, and 14 is an air passage connecting the chamber 6b and the air introduction passage 4.

上記の構成からして、サージタンク内の給気圧が、設定
値以、■二になった際は、通路１３．を通し、て可撓膜
部材８に作用し、スブリンク９に抗して弁部材７が作動
して、弁座板すと９閉状態へと移行する。Considering the above configuration, when the supply pressure in the surge tank becomes less than the set value (2), the passage 13. acts on the flexible membrane member 8, the valve member 7 operates against the sublink 9, and the valve seat plate 9 shifts to the closed state.

従って、エアーフィルタ、１２を通し空気が室６ｂへ流
入する。本エアーコントロールバルブの作動は５．ｉの
受圧力に比櫻す４．るもので、添付図示例での弁部材は
テーバ形とされ、所期する開口面積変化量を適合化すべ
く構成されている。Air thus flows into the chamber 6b through the air filter, 12. The operation of this air control valve is as follows.5. 4. Compared to the received pressure of i. The valve member in the example shown in the accompanying drawings is tapered and configured to accommodate the desired change in opening area.

工′アーコン１０−ルバルブの室６ｂに流入した上記空
気は、空気通路１４を経て空気導入通路４に流れるので
、空燃比が薄くなるように１１整さ、“容易に所期目的
を達成し得るものである。The air that has flowed into the chamber 6b of the arccon 10-le valve flows through the air passage 14 to the air introduction passage 4, so that the air-fuel ratio is adjusted so that the air-fuel ratio becomes lean, so that the desired purpose can be easily achieved. It is something.

、、４・、：・−面、？簡単“説明 ″ｍｌ□付図□は、本発明ターボチャージャの安全装置
、・の説明図である。、　。,,4・,:・−face,? Figure □ with simple "explanation" ml □ is an explanatory diagram of the safety device of the turbocharger of the present invention. , .

１・・−・−キャブレタ、２・−・−・コンプレッサ、
・３・−−−−サージタンク、４・−一一一−空気導入
通路。1.--.-carburetor, 2.--.-.compressor,
・3・---Surge tank, 4・-111-Air introduction passage.

５−−一・・ｆｌ料ｊｆｆｌ路、　　６−・−・コント
ロールバルブ。5--1...fl charge jffl path, 6---control valve.

１３−・−通路、１４−−−・−空気通路。13-.-Passage, 14--.-Air passage.

特許出ｒｕ木 アイシンＩｌ１機株式会社 代表者　　中、井　令　夫patent issued tree Aisin Il1 Machine Co., Ltd. Representative: Naka, Reio I

Claims (1)

【特許請求の範囲】[Claims] ターボチャージャを備えたキャブレタにおいて、サージ
タンクの給気圧力を信号とし、前記圧力が所定圧量」二
に達したときに、エアーブリード量を増加させるエアー
コン］・ロールバルブを設ケてなるターボチャージャの
安全装置。In a carburetor equipped with a turbocharger, the turbocharger is equipped with an air conditioner roll valve that uses the supply pressure of the surge tank as a signal and increases the amount of air bleed when the pressure reaches a predetermined pressure. safety equipment.
JP57165910A 1982-09-23 1982-09-23 Safety device of turbocharger Pending JPS5954760A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57165910A JPS5954760A (en) 1982-09-23 1982-09-23 Safety device of turbocharger
US06/825,540 US4658798A (en) 1982-09-23 1986-02-03 Turbocharger control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57165910A JPS5954760A (en) 1982-09-23 1982-09-23 Safety device of turbocharger

Publications (1)

Publication Number Publication Date
JPS5954760A true JPS5954760A (en) 1984-03-29

Family

ID=15821327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57165910A Pending JPS5954760A (en) 1982-09-23 1982-09-23 Safety device of turbocharger

Country Status (1)

Country Link
JP (1) JPS5954760A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5499825A (en) * 1977-09-20 1979-08-07 Audi Ag Method of controlling suction pressure acting in suction pipe of internal combustion engine to be actuated by exhaust turboocharger and internal combustion engine having exhaust turboocharger
JPS5715938B2 (en) * 1974-04-01 1982-04-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715938B2 (en) * 1974-04-01 1982-04-02
JPS5499825A (en) * 1977-09-20 1979-08-07 Audi Ag Method of controlling suction pressure acting in suction pipe of internal combustion engine to be actuated by exhaust turboocharger and internal combustion engine having exhaust turboocharger

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