JPS59194067A - Starter of float type carburetter for portable work engine - Google Patents
Starter of float type carburetter for portable work engineInfo
- Publication number
- JPS59194067A JPS59194067A JP7158983A JP7158983A JPS59194067A JP S59194067 A JPS59194067 A JP S59194067A JP 7158983 A JP7158983 A JP 7158983A JP 7158983 A JP7158983 A JP 7158983A JP S59194067 A JPS59194067 A JP S59194067A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- starting
- float
- fuel nozzle
- carburetter
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/16—Other means for enriching fuel-air mixture during starting; Priming cups; using different fuels for starting and normal operation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Means For Warming Up And Starting Carburetors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は特に携帯作業機エンチン用浮子型気化器の始動
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to a starting device for a float type carburetor for a portable working machine engine.
携帯作業機は各種の用途により手持式、肩掛式、背負式
等の携帯方式があり、刈払機、芝刈機、枝打機、剪定等
林業、農業、園芸等の業務に広く使用されている。小型
軽量、傾斜運転の必要性から2サイクルエンヂンが使用
され、作業性から遠心クラッチ式の回転伝達装置が使用
されている事、又作業の性質上春夏秋季に多用され冬季
の寒冷時、酷寒時の使用は非常に稀少な事は良く知られ
ている事である。Portable working machines come in hand-held, shoulder-carrying, and backpack-type types depending on the purpose, and are widely used in forestry, agriculture, gardening, etc., such as brush cutters, lawn mowers, pruning machines, and pruning machines. A two-stroke engine is used because it is small and lightweight and requires inclined operation, and a centrifugal clutch-type rotation transmission device is used for workability.Also, due to the nature of the work, it is often used in spring, summer, autumn, and during the cold winter months, it is extremely cold. It is well known that the use of time is extremely rare.
コーンチン始動に際しては地上にエンチンを置き、足で
抑へて固定し、手でリコイルスタータ−を引く関係上、
刃具が回転する危険がない様遠心クラッチの接続回転以
下(例へば3500RPM)のアイドリング回転(例へ
ば3000RPM)程度の始動回転である事が安全面か
ら特に必要である。When starting the engine, place the engine on the ground, hold it down with your foot, and pull the recoil starter with your hand.
From a safety point of view, it is particularly necessary for the starting rotation to be about idling rotation (for example, 3000 RPM) or less than the centrifugal clutch engagement rotation (for example, 3500 RPM) so that there is no danger of the cutting tool rotating.
通常の2サイクルエンヂンの気化器始動装置としては2
輪車向けにはノ・イスクーク一方式、遠心重錘式ガバナ
ー付定置用エンチンではチョークパルプ方式が広く使用
されているが、2等エンチンは冬期酷寒時、寒冷時にも
使用される為め冷態時の大きいエンチン摩擦トルクに打
勝つ一回転トルクとする必要上、フィトリング開度より
大きい吸入空気量を使用しておりこの場合クラッチ回転
を越えない様に濃混合気により回転上昇を抑へる設定が
されている(所謂リノチクウン)事は広く知られる所で
ある。然し自動復帰装置がない場合は、手動でハイスク
ークー装置、チョークノQルブ装置を戻す必要があり始
動時の操作が繁多である欠点がある。As a carburetor starter for a normal 2-cycle engine, 2
For wheeled vehicles, the one-way type engine is widely used, and for stationary engine engines with centrifugal weight governors, the chalk pulp method is widely used, but second-class engine engines are used in extremely cold winters, so they are kept in a cold state. In order to achieve one rotation torque that can overcome the large engine friction torque at the time, an intake air amount larger than the fitting opening is used, and in this case, a rich mixture is used to suppress the increase in rotation so as not to exceed the clutch rotation. It is widely known that there is a setting (so-called Rinochikun). However, if there is no automatic return device, it is necessary to manually return the high-squeak device and choke-no-Q-lube device, which has the drawback of requiring frequent operations at startup.
本発明の携帯作業機エンーチンの場合は前述の如く春夏
秋季で気温が比較的高い為め冷態時のエンデフ摩擦トル
クの増大も少な(濃混合気にずればスロットル開度はア
イドル開度のままでも始動が可能であり、クラッチ接続
、刃具回転の危険がない。そこで本発明の場合浮子室燃
料を燃料油面下に設けた手動ポンプにより燃料ノズル内
に噴込し燃料ノズル内の油面な上昇させノズル外に一部
を噴出させる事によりリコイル操作に於てフィトリング
開度のまま濃混合気をエンチンに送り始動させる事が出
来、始動后の復帰操作が全く必要がない利点もある。又
油面下の手動ポンプの為めポンプにチェック・・ルズが
必要なく極めて簡単安価なボ/ブ構造が可能である。In the case of the en-chin portable working machine of the present invention, as mentioned above, the temperature is relatively high in spring, summer, and fall, so the increase in the en-def friction torque during cold conditions is small (if the air-fuel mixture shifts to a rich mixture, the throttle opening will be less than the idle opening). It is possible to start even if the fuel is not in use, and there is no risk of clutch engagement or cutting tool rotation.Therefore, in the case of the present invention, the float chamber fuel is injected into the fuel nozzle by a manual pump installed below the fuel oil level. By raising the engine and ejecting part of it outside the nozzle, it is possible to start by sending a rich mixture to the engine engine with the fitting ring open during recoil operation, and there is also the advantage that there is no need to perform a return operation after starting. .Also, since the pump is operated under the oil level, there is no need for a check valve on the pump, allowing for an extremely simple and inexpensive bob/bob structure.
尚濃混合気にする他の手段として浮子を外部より押して
燃料油面を上列させる新組ティクラー装置もあるが、曲
面の上昇程度の確認困難、通気孔より燃料濡出による公
害及び気化器外面の汚れ、油面過上昇による呑込過ぎ、
始動困難等の不具合もあり始動性の安全、確実性に欠け
る欠点がある。Another means of enriching the air-fuel mixture is a new tickler device that pushes a float from the outside to raise the fuel oil level, but it is difficult to confirm the degree of rise of the curved surface, and it causes pollution due to fuel seeping out from the vent hole and the outside surface of the carburetor. dirt, excessive engulfment due to excessive oil level rise,
There are also problems such as difficulty in starting, and there is a drawback that starting is not safe and reliable.
図面は本発明要部の縦断面図である。1は気化器本体、
2は気化器本体1を前厄に貫]再1−るベンチュIJ−
13は燃料、ノズルである。4 +t−i1子室、5は
燃料入口、6は浮子弁、71ま浮子、8(1浮子弁7、
浮子7によって形成された燃料2111面である。The drawing is a longitudinal sectional view of the main part of the present invention. 1 is the carburetor body,
2 penetrates the carburetor body 1] Re-1 ventu IJ-
13 is a fuel nozzle. 4 +t-i1 child chamber, 5 is fuel inlet, 6 is float valve, 71 is float, 8 (1 float valve 7,
This is the fuel 2111 surface formed by the float 7.
9は浮子室40通気孔、10は浮子室4の接面カースケ
ノドである。11は本発明に係る始動燃料圧j若ポンプ
で燃料油面8下方にあり蟻装状態により浮子室4と一体
化、或いは図の如く別体とし浮子室下部の継手12と点
線の如く可撓管で連通ずる事も出来る。13は弾性復元
力のあるポンプ、−1zクンで圧送ポンプ11に洩出固
着されている。燃料ノズル3の下端孔14に対向して圧
送ポンプ11の噴出筒15力1ある。9 is a ventilation hole for the float chamber 40, and 10 is a contact surface of the float chamber 4. Reference numeral 11 denotes a starting fuel pressure pump according to the present invention, which is located below the fuel oil level 8 and can be integrated with the float chamber 4 depending on the mounting condition, or it can be a separate body as shown in the figure, and can be connected to the joint 12 at the bottom of the float chamber with flexibility as shown by the dotted line. It is also possible to communicate with a pipe. Reference numeral 13 denotes a pump having an elastic restoring force, and is fixed to the pressure pump 11 with a -1z kun. The ejection cylinder 15 of the pressure pump 11 is located opposite the lower end hole 14 of the fuel nozzle 3 .
本発明はこの様に構成されて℃・るσ)で/令態B存始
動に当っては始動燃料圧送ポツプ11のノ■士ンブ、に
クン13を押せば内部の燃料は燃料ノス/l、 3の下
端子L14より下方に噴上り、燃料ノズル3内σ) /
(11iriiカー上昇しその一部はノズル上に噴出し
、ベンチェ1ノー2に流出してリフィル操作により濃混
合気を形成し始動を簡単確実にする事が出来る。The present invention is constructed in this manner. When starting the fuel pump 11 at ℃・ruσ), press the knob 13 to release the fuel inside the fuel nozzle/l. , injects downward from the lower terminal L14 of 3, inside the fuel nozzle 3 σ) /
(The 11irii car rises and a part of it is ejected onto the nozzle and flows out into the bench 1 and 2, forming a rich air-fuel mixture by refilling the engine, making it possible to start easily and reliably.
図面は本発明要部の縦断面図である。 特許出願人 株式会社ウオルフローファーイースト 回 向 The drawing is a longitudinal sectional view of the main part of the present invention. patent applicant Wall Lofer East Co., Ltd. direction
Claims (1)
ノズル下端孔に対向して設けて成る携帯作業機エンチン
用浮子型気化器の始動装置。A starting device for a float-type carburetor for a portable working machine engine, which comprises a starting fuel pressure-feeding pump provided below the fuel oil level, with an ejection tube facing a lower end hole of a fuel nozzle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7158983A JPS59194067A (en) | 1983-04-20 | 1983-04-20 | Starter of float type carburetter for portable work engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7158983A JPS59194067A (en) | 1983-04-20 | 1983-04-20 | Starter of float type carburetter for portable work engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59194067A true JPS59194067A (en) | 1984-11-02 |
Family
ID=13465008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7158983A Pending JPS59194067A (en) | 1983-04-20 | 1983-04-20 | Starter of float type carburetter for portable work engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59194067A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5750056A (en) * | 1996-09-18 | 1998-05-12 | Murray, Inc. | Remotely controlled primer actuator for power equipment engines |
US5891369A (en) * | 1996-01-29 | 1999-04-06 | White Consolidated Industries, Inc. | Method and apparatus for fast start fuel system for an internal combustion engine |
WO2002035077A1 (en) * | 2000-10-20 | 2002-05-02 | Briggs & Stratton Corporation | Priming system for an engine carburetor |
US7152852B1 (en) | 2004-02-17 | 2006-12-26 | Walbro Japan, Inc. | Priming system for a float bowl carburetor |
-
1983
- 1983-04-20 JP JP7158983A patent/JPS59194067A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5891369A (en) * | 1996-01-29 | 1999-04-06 | White Consolidated Industries, Inc. | Method and apparatus for fast start fuel system for an internal combustion engine |
US6079697A (en) * | 1996-01-29 | 2000-06-27 | Wci Outdoor Products, Inc. | Method and apparatus for fast start fuel system for an internal combustion engine |
US5750056A (en) * | 1996-09-18 | 1998-05-12 | Murray, Inc. | Remotely controlled primer actuator for power equipment engines |
WO2002035077A1 (en) * | 2000-10-20 | 2002-05-02 | Briggs & Stratton Corporation | Priming system for an engine carburetor |
US6557833B1 (en) * | 2000-10-20 | 2003-05-06 | Briggs & Stratton Corporation | Priming system for an engine carburetor |
AU2001296759B2 (en) * | 2000-10-20 | 2006-01-05 | Briggs & Stratton Corporation | Priming system for an engine carburetor |
CN1304747C (en) * | 2000-10-20 | 2007-03-14 | 布里格斯及斯特拉顿公司 | Priming system for an engine carburetor |
US7152852B1 (en) | 2004-02-17 | 2006-12-26 | Walbro Japan, Inc. | Priming system for a float bowl carburetor |
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