JPS5946344A - Apparatus for preventing overspeed rotation of two-cycle engine - Google Patents
Apparatus for preventing overspeed rotation of two-cycle engineInfo
- Publication number
- JPS5946344A JPS5946344A JP3336482A JP3336482A JPS5946344A JP S5946344 A JPS5946344 A JP S5946344A JP 3336482 A JP3336482 A JP 3336482A JP 3336482 A JP3336482 A JP 3336482A JP S5946344 A JPS5946344 A JP S5946344A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- throttle valve
- rotation
- overspeed
- valve
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は2リイクル」シアンの過回転によるエンヂン破
損を防止づる過回転防止装置色に関づるもので((ンる
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an over-speed prevention device for preventing engine damage due to over-speed of a 2-recycle cyan engine.
2リイクル」シアン(よその4JJ性り目)小1ノ1気
用の上シアンに多用されでJ3す、特にグーr\ツノラ
ム型気化器を採用りる!10こJ、り全姿勢運転ijl
fjliの点にリヂJ−ンソー、刈払(幾等手持ち全
姿勢作業機の動力源どじ−C専用されCいる事は広く知
られる所である。2 Recycle" Cyan (Other 4JJ characteristics) It is often used for the upper cyan of small 1st grade and J3, especially the goo r\tsunoram type vaporizer! 10k J, ri all posture driving ijl
It is widely known that the power source for hand-held all-position work equipment is dedicated to the power source of the ridge saw and brush cutter.
F、1−ンソー、刈払賎はその作業刃具が多種多様であ
り例えばチェンソーに於てはヂ1ンバーの長短、刈払(
幾ひばカッター径の大小、或いはJイロン系刃具の長短
、本数等作業対象にJ、り無負?ijl j車転及び負
荷運転状態の刃具回転抵抗か人ぎく変り同一気化器調整
のままでは、刃具抵抗過大の場合は加速不良、回転上ら
ず、又刃具抵抗過少の場合は過回転状態どなり、エンヂ
ンの焼損、破損をMlく事がある。最近はこの種作業機
の軽便さから需要が広がり未熟練者の使用が多くなり気
化器81!J整をしないままに運転し破損等の不具合い
が起る事が多い。特に最近は低価格化、軽小化の為め土
シアン構造、強度も必要最小限度である為め一囮過回転
による破損を防止−する必要が多くなって来た。F. 1- Chain saws and brush cutters have a wide variety of cutting tools.
How large or small is the diameter of the cutter, or the length and number of J-iron type cutting tools, etc.? ijl j Cutting tool rotational resistance or jerkiness during vehicle rotation and load operation If the same carburetor adjustment is maintained, if the cutting tool resistance is too high, acceleration will be poor and the rotation will not increase, and if the cutting tool resistance is too low, it will become over-rotated. This may cause burnout or damage to the engine. Recently, the demand for this type of work equipment has increased due to its lightness, and more and more unskilled people are using it, and the carburetor 81! If the machine is operated without proper J adjustment, malfunctions such as damage often occur. Particularly in recent years, due to the reduction in price and weight, there has been an increasing need to prevent damage due to over-rotation of the decoy, as the structure has been reduced to the bare minimum and strength has been reduced to the minimum necessary.
従来この種の過回転防止装置aには第一に過回転時の共
振により聞弁じ過)間燃料を一1ンヂンに送り回転上品
を抑え過回転を防止りる過澗燃tq供給万式、所謂共振
弁がバナー装置と、第一の13式どして絞弁開度をエン
ヂン冷Nl風域に1αいた制ネ11羽根にかかる風圧で
、過回転時校弁を閉じるん向に動かす混合気制御方式、
所謂ベーンガハプー装閘が用いられている。Conventionally, this type of over-rotation prevention device (a) has a system that firstly sends fuel to each engine during resonance due to resonance during over-rotation, suppressing the amount of rotation and preventing over-rotation; The so-called resonance valve is a combination of a banner device and the first type 13 that controls the opening of the throttle valve by 1α in the engine cold Nl wind region and uses the wind pressure applied to the control valve 11 to move the valve in the direction of closing in the event of overspeed. air control method,
A so-called bengahapoo lock is used.
本発明は過回転時絞弁を(jlじる作動力として−「シ
アン回転に略比例的に増減づるクランク室パルス11土
を、べL1ノシノ1.ダイ(/フシム、シリンタ゛−等
θ月1カ変換装置に人力し、イの作りj出力て絞弁を閉
り向にivJかし過回転を防11りる混合気制御方式に
関りるものCある。The present invention uses a crank chamber pulse 11 which increases and decreases approximately in proportion to the cyan rotation as an operating force for controlling the throttle valve during over-speed rotation. There is one related to a mixture control system in which the power conversion device is manually operated and the output of A is used to turn the throttle valve in the closing direction to prevent over-speed.
図面につい゛(説明りると第1図は本案気化器要部の縦
…i面図(図に於(1は気化器本体、2は絞弁、3は絞
弁す+11.4は絞弁レバー、5は絞’JTレバー4を
全開方向に付勢している戻しばね、0は絞弁レバー4の
操作桿で他の一端は作業者の手で操f′[するレバー(
図示ぜす”)にjili枯され作業者の意志により運転
される。7はカバノー・レバーC絞弁軸31(こ固るさ
れ、8のガバフースプリングC常に絞弁レバー4に対し
絞弁2の間さ)°ノ向に1・1勢され常時は絞ブrレバ
ー4の開度と 体向に回り」Jる。。Regarding the drawings, Figure 1 is a longitudinal view of the main parts of the carburetor of this invention (in the figure (1 is the carburetor main body, 2 is the throttle valve, 3 is the throttle valve + 11.4 is the throttle valve) The lever 5 is a return spring that urges the throttle lever 4 in the fully open direction, 0 is the operating stick of the throttle valve lever 4, and the other end is a lever operated by the operator's hand.
The throttle valve shaft 31 (7) is solidified, and the throttle valve 2 (2) is always connected to the throttle valve lever (4). The aperture brake lever 4 is normally rotated in the direction of the opening of the throttle lever 4 and the direction of the body. .
9は制御−稈C過回転時がバナーレバー7を押しく絞弁
2を開方向に動かり7,10は従来のベーンガバナーの
賜金の制御羽根で〕ニシアン冷却ファンの風1」−を受
りて絞弁2を閉方向に回すl’lすjカどなる。9 is a control - when the culm C over-speeds, the banner lever 7 is pushed and the throttle valve 2 is moved in the opening direction. When you turn the throttle valve 2 in the closing direction, it makes a loud noise.
第2図は本案装置要部の縦…i面図て図に於り′1は気
化器本体、3は絞ブ1軸、4は絞弁レバー、Gは絞弁レ
バー4の操作稈、7(、L力バナーレバー、9は制御桿
である。11はLンブンク1ノンク室(図示せず)への
連絡路、12Iよ逆止ブ↑(・アングレシバ(を開国し
である。13は過回転++:Iに聞く制御弁でボールバ
ルブを例示しくある。、1/Iはスノ゛リングで過回転
時の振動によるボール13の共撮加速度に釣合ってボー
ルが聞く。15はji力変換器ぐ開国どしてべ【」フラ
ム型を承り。1(3はへ1−」フラム、9はベロフラム
に固着された制御稈、17はベロフラム戻しば′ね、1
8は入力端に設りたリーク孔でパルスi、E 1.’t
を適当に)几がしCべ1」フラムが戻しばね17で戻る
様に1llN定、調整りる。Figure 2 is a vertical view of the main parts of the device according to the present invention, in which '1 is the carburetor main body, 3 is the throttle valve shaft, 4 is the throttle valve lever, G is the operating culm of the throttle valve lever 4, and 7 (, L power banner lever, 9 is a control rod. 11 is a communication path to the Lnbunk 1 non-k chamber (not shown), 12I is a check valve ↑ (・ Angreshiba (opening the country). Rotation ++: The ball valve is exemplified by the control valve that listens to I., 1/I is snow ring and the ball listens to balance the joint acceleration of ball 13 due to vibration during over-rotation.15 is ji force conversion We accept the flamm type. 1 (3 is 1-) flam, 9 is the control culm fixed to the bellofram, 17 is the bellofram return spring, 1
8 is a leak hole provided at the input end and pulses i, E 1. 't
Appropriately) Adjust C to a constant of 11N so that the flam returns with the return spring 17.
本発明はこの様に構成され(いる為め、逆止弁を経たク
ランク室パルス正J−tが過回転11.llのみ1,1
カ変換器の出力側制御桿を押出し、刀バ犬−レバー7を
閉方向に回動させる為め絞弁2が閉力向に1Flrき自
動的に回転を下げ、過回転を防止づる串が出来る。The present invention is constructed in this way (because of this, the crank chamber pulse positive J-t passing through the check valve is only 1,1
In order to push out the output side control rod of the power converter and rotate the sword lever 7 in the closing direction, the throttle valve 2 moves 1 Flr in the direction of the closing force, automatically lowering the rotation, and the skewer that prevents over-rotation is activated. I can do it.
第1図は本案気化器要部の縦…1面図、ダ12図は本案
装置要部の縦[すi面図C′ある、。
’f’J g’l出願人
株式会ネ1 ウAルブE」−ツノ・−r−スト川崎市中
原区新丸子東2丁目92
5株式会社ウオルブローファー
イースト内
0発 明 者 高原三部
川崎市中原区新丸子東2丁目92
5株式会社ウオルブローファ−
イースト内
0発 明 者 黒木信之
川崎市中原区新丸子東2丁目92
5株式会社ウオルブ冶−ファー
イースト内
0発 明 者 白戸哲也
川崎市中原区新丸子東2丁目92
5株式会社ウオルブローファー
イースト内
0発 明 者 飛内照彦
川崎市中原区新丸子東2丁目92
5株式会社ウオルブローファー
イースト内
0発 明 者 梶孝雄
川崎市中原区新丸子東2丁目92
5株式会社ウオルブローファー
イースト内
0発 明 者 梓沢正友
川崎市中原区新丸子東2丁目92
5株式会社ウオルブローファー
イースト内
0発 明 者 瀬下義美
川崎市中原区新丸子東2丁目92
5株式会ネ上つオルブローファー
イースト内
特許庁長官 若 杉 和 人 殿1、事件
の表示
昭和575f特y[願!’!33364号3、補正をり
る者
事件どの関係 特r1出願人
〒211Fig. 1 is a vertical view of the essential parts of the present vaporizer, and Fig. 12 is a longitudinal view of the essential parts of the present device. 'f'J g'l Applicant Co., Ltd. Ne1 Urub E" - Tsuno - r - St 5 Shinmaruko Higashi 2-92, Nakahara-ku, Kawasaki-shi Walbrofer East Co., Ltd. 0 Inventor Takahara Sanbe Kawasaki Shinmaruko Higashi 2-92 5, Nakahara-ku, Kawasaki City 2-92 Shin-Maruko Higashi 5 Author: Nobuyuki Kuroki 5-Shinmaruko Higashi 2-92, Nakahara-ku, Kawasaki City 0 author: Tetsuya Shirato Nakahara, Kawasaki City Shinmaruko Higashi 2-92 5, Shinmaruko Higashi Co., Ltd. 0 Author: Teruhiko Hiuchi Shinmaruko Higashi 2-92, Nakahara-ku, Kawasaki City 0 Author: Takao Kaji Shinmaruko Higashi, Nakahara-ku, Kawasaki City 2-92 5 Wall Lofer East Co., Ltd. 0 inventors Author Masatomo Azusawa 2-92 Shinmaruko Higashi, Nakahara-ku, Kawasaki City 5 Wall Lofer East Co., Ltd. 0 inventors Author Yoshimi Seshita 2-92 Shinmaruko Higashi, Nakahara-ku, Kawasaki City 5 Mr. Kazuto Wakasugi, Commissioner of the Patent Office in Orbrofer East, Inc. 1, Incident Display Showa 575f Special Request! '! No. 33364 No. 3, What is the relationship between the person making the amendment and the case? Patent R1 applicant address: 211
Claims (1)
ランク案パルス正J3:を、圧力変換器に入力しエンヂ
ン過回転時ぞの作動出力にJ、り気化器絞弁を自動的に
閉方向に動か!12ザイクル土ンfン過回転防止装置。Check valve and setting II! The crank plan pulse positive J3: generated by the control valve, which opens at one turn, is input to the pressure transducer, and when the engine overspeeds, J is used as the operating output, and the carburetor throttle valve is automatically moved in the closing direction! 12 cycles over rotation prevention device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3336482A JPS5946344A (en) | 1982-03-03 | 1982-03-03 | Apparatus for preventing overspeed rotation of two-cycle engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3336482A JPS5946344A (en) | 1982-03-03 | 1982-03-03 | Apparatus for preventing overspeed rotation of two-cycle engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5946344A true JPS5946344A (en) | 1984-03-15 |
Family
ID=12384521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3336482A Pending JPS5946344A (en) | 1982-03-03 | 1982-03-03 | Apparatus for preventing overspeed rotation of two-cycle engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946344A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0285809A2 (en) * | 1987-04-10 | 1988-10-12 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
EP0285808A2 (en) * | 1987-04-04 | 1988-10-12 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
EP0286818A2 (en) * | 1987-04-13 | 1988-10-19 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4796578A (en) * | 1987-05-06 | 1989-01-10 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4796583A (en) * | 1987-05-06 | 1989-01-10 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
JPH084560A (en) * | 1985-03-16 | 1996-01-09 | Andreas Stihl:Fa | Two-cycle engine |
FR2981987A1 (en) * | 2011-10-27 | 2013-05-03 | Renault Sa | Method for controlling motor of e.g. diesel engine of car in event of over speed detection, involves calculating set value for controlling opening of shutter so as to reduce air flow entering to degrade combustion and reduce engine speed |
-
1982
- 1982-03-03 JP JP3336482A patent/JPS5946344A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH084560A (en) * | 1985-03-16 | 1996-01-09 | Andreas Stihl:Fa | Two-cycle engine |
EP0285808A2 (en) * | 1987-04-04 | 1988-10-12 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4809657A (en) * | 1987-04-04 | 1989-03-07 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
EP0285809A2 (en) * | 1987-04-10 | 1988-10-12 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4796582A (en) * | 1987-04-10 | 1989-01-10 | Walbro Far East, Inc. | Anti-overruning device for an internal combustion engine |
EP0286818A2 (en) * | 1987-04-13 | 1988-10-19 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4809658A (en) * | 1987-04-13 | 1989-03-07 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4796578A (en) * | 1987-05-06 | 1989-01-10 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
US4796583A (en) * | 1987-05-06 | 1989-01-10 | Walbro Far East, Inc. | Anti-overrunning device for an internal combustion engine |
FR2981987A1 (en) * | 2011-10-27 | 2013-05-03 | Renault Sa | Method for controlling motor of e.g. diesel engine of car in event of over speed detection, involves calculating set value for controlling opening of shutter so as to reduce air flow entering to degrade combustion and reduce engine speed |
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