JPS584752U - internal combustion engine carburetor - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例としての内燃機関の気化器の
縦断面図、第２図は第１図におけるチョーク弁駆動部を
側方から見た構成を示す図、第３図は第１図装置の電気
回路を示す図、第４図は本考案の他の実施例を示す図、
第５図は本考案の、さらに他の実施例縦断面を示す図、
第６図は第５図装置の電気回路を示す図である。 １・・・吸気管、２・・・ゾランジ部、３・・・気化器
、３ａ・・・吸気通路、３ｂ・・・吸気通路、４・・・
インシュレータ、５…スロツトル弁、６・・・スロット
ル弁シヤフト、７・・・ベンチュリ、８・・・チョーク
弁、９・・・チョーク弁シャフト、１０・・・アーム、
１１・・・チョークケース取付面、１２・・・チョーク
機構、１３・・・チョークケース、１４・・・伝熱板、
１−５・・・バイメタル、１６ａ、　　１６ｂ、　　１
６ｃｍＰＴＣヒータ、１８゜１９・・・正電極板、２０
．２１・・・正電極端子、２２・・・ピン、２３・・・
負電極端子、２４・・・ナツト、２５゜２６・・・リー
ド線、２７・・・吸気加熱装置、２８・・・加熱板、３
０・・・正電極板、３１・・・絶縁板、３２・・・スプ
リング、３３・・・裏ぶた、３４・・・リード線、３５
・・・ボルト、３６・・・バッテリ、３７・・・リレー
スイッチ、３７ａ・・・リレーコイル、３８・・・切換
スイッチ、３９・・・切換スイッチ、６０・・・サーミ
スタ、４０・・・制御回路。 ｍ←　　Ｌゼ′ ６月 ４２「 第６図FIG. 1 is a vertical cross-sectional view of a carburetor for an internal combustion engine as an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of the choke valve drive section in FIG. Figure 1 is a diagram showing the electric circuit of the device, Figure 4 is a diagram showing another embodiment of the present invention,
FIG. 5 is a longitudinal cross-sectional view of still another embodiment of the present invention;
FIG. 6 is a diagram showing the electrical circuit of the device shown in FIG. 5. DESCRIPTION OF SYMBOLS 1... Intake pipe, 2... Zorange part, 3... Carburetor, 3a... Intake passage, 3b... Intake passage, 4...
Insulator, 5... Throttle valve, 6... Throttle valve shaft, 7... Venturi, 8... Choke valve, 9... Choke valve shaft, 10... Arm,
11...Choke case mounting surface, 12...Choke mechanism, 13...Choke case, 14...Heat exchange plate,
1-5...Bimetal, 16a, 16b, 1
6cm PTC heater, 18°19...Positive electrode plate, 20
．． 21...Positive electrode terminal, 22...Pin, 23...
Negative electrode terminal, 24... Nut, 25° 26... Lead wire, 27... Intake heating device, 28... Heating plate, 3
0... Positive electrode plate, 31... Insulating plate, 32... Spring, 33... Back cover, 34... Lead wire, 35
... Volt, 36... Battery, 37... Relay switch, 37a... Relay coil, 38... Changeover switch, 39... Changeover switch, 60... Thermistor, 40... Control circuit. m←Lze′ June 42 “Figure 6

Claims (1)

【実用新案登録請求の範囲】 ■　吸気通路に第１の電気的発熱体を含む吸気加熱装置
を有する内燃機関に適用される気化器であって、チョー
ク弁と、このチョーク弁を駆動するバイメタルと、この
バイメタルを加熱する第２および第３の電気的発熱体と
を備え、かつ前“記吸気加熱装置の作動状態を検出する
手段を具備し、それにより前記吸気加熱装置の検出され
た作動状態に応じて前記第２および第３の電気的発熱体
の通電が制御されることを特徴とする内燃機関の気化器
。 ２　前記吸気加熱装置の作動状態を検出する手段が、前
記吸気加熱装置に流れる電流に応じて動作する電流応動
装置である、実用新案登録請求の範囲第１項に記載の内
燃機関の気化器。 ３　前記吸気加熱装置の作動状態を検出する手段が、前
記吸気加熱装置の加熱面の温度に応じて動作する温度応
動装置である、実用新案登録請求の範囲第１項に記載の
内燃機関の気化器。 ４　前記第２および第３の電気的発熱体へ通電せしめる
独立した２個の正電極と共通の負電極、又は独立した２
個の負電極と共通の正電極を有し、吸気加熱装置通電時
、又は吸気加熱装置の加熱面温度が設定温度より高い時
は前記第２および第３の電気的発熱体を並列に接続、通
電し、前記吸気加熱装置が非通電時、又は加熱面温度が
設定温度より低い時は第２および第３の電気的発熱体の
一方のみ接続、通電する、実用新案登録請求の範囲第１
項に記載の内燃機関の気化器。 ５　前記吸気加熱装置通電時、又は吸気加熱装置の加熱
面温度が設定温度より高い時は前記第２および第３の電
気的発熱体を並列に接続、通電し、前記吸気加熱装置が
非通電時、又は加熱面温度が設定温度より低い時は前記
第２および第３の電気的発熱体を直列に接続し、通電す
ることを特徴とする、実用新案登録請求の範囲第１項に
記載の内燃機関の気化器。[Claims for Utility Model Registration] ■ A carburetor applied to an internal combustion engine having an intake air heating device including a first electric heating element in the intake passage, the carburetor comprising a choke valve and a bimetal that drives the choke valve. , second and third electric heating elements for heating the bimetal, and means for detecting the operating state of the intake air heating device, thereby detecting the detected operating state of the intake air heating device. A carburetor for an internal combustion engine, characterized in that energization of the second and third electric heating elements is controlled according to the following: 2. A means for detecting an operating state of the intake air heating device, The carburetor for an internal combustion engine according to claim 1, which is a current-responsive device that operates in response to a flowing current. 3. The means for detecting the operating state of the intake air heating device The vaporizer for an internal combustion engine according to claim 1, which is a temperature-responsive device that operates according to the temperature of a heating surface.4. Two positive electrodes and a common negative electrode, or two independent
the second and third electrical heating elements are connected in parallel when the intake air heating device is energized or when the heating surface temperature of the intake air heating device is higher than the set temperature; Utility model registration claim 1, wherein when the intake air heating device is not energized or when the heating surface temperature is lower than the set temperature, only one of the second and third electric heating elements is connected and energized.
A carburetor for an internal combustion engine as described in . 5 When the intake air heating device is energized or when the heating surface temperature of the intake air heating device is higher than the set temperature, the second and third electric heating elements are connected in parallel and energized, and when the intake air heating device is not energized. , or when the heating surface temperature is lower than the set temperature, the second and third electric heating elements are connected in series and energized, and the internal combustion according to claim 1 of the utility model registration claim. Engine carburetor.