JPS63134826A - Valve for intake passage of engine - Google Patents

Valve for intake passage of engine

Info

Publication number
JPS63134826A
JPS63134826A JP61281458A JP28145886A JPS63134826A JP S63134826 A JPS63134826 A JP S63134826A JP 61281458 A JP61281458 A JP 61281458A JP 28145886 A JP28145886 A JP 28145886A JP S63134826 A JPS63134826 A JP S63134826A
Authority
JP
Japan
Prior art keywords
valve
intake passage
heat
heating
generating member
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
JP61281458A
Other languages
Japanese (ja)
Inventor
Takeshi Miyauchi
宮内 武
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.)
Nippon Thermostat Co Ltd
Original Assignee
Nippon Thermostat 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 Nippon Thermostat Co Ltd filed Critical Nippon Thermostat Co Ltd
Priority to JP61281458A priority Critical patent/JPS63134826A/en
Publication of JPS63134826A publication Critical patent/JPS63134826A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE:To improve heating efficiency for preventing freezing by providing a heating member on a valve disc of a valve for intake passage. CONSTITUTION:A heating member 13 made of positive temperature characteristic resistance element is buried in the surface of the circumferential part of a valve disc 12 for opening/closing an intake passage 11. A control switch 16 is turned on or off according to the rotary angle of the valve disc 12, and only when the opening degree of a valve for intake passage 10 is small, the control switch 16 is turned on, and electric current is applied to electric wires 15 and 17. Accordingly, in the state where the opening degree of the valve 10 is small and air flow flows in a narrow opening of the circumferential end part of the valve at a high speed and freezing is easily generated, the heating member 13 generates heat and heats the circumferential part of the valve disc 12 which is most easily forced. As above-mentioned, freezing can be prevented by directly heating the valve disc 12, and heating is efficient. Simplification and miniaturization of the heating member 13 is accordingly attempted, and precise temperature control can be realized.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は自動車等のエンジンにおいて、吸気路すなわち
気化器、燃料混合通路に設置される弁に関し、特にその
氷結防止技術に係るものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a valve installed in an intake passage, that is, a carburetor, and a fuel mixing passage in an engine such as an automobile, and particularly relates to anti-icing technology therefor.

従来の技術と問題点 従来より気化器等の弁の、氷結を防ぐだめ、弁の周囲に
電気ヒータやエンジン冷却水流路を設け、外部から加熱
することが行なわれている。
BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, in order to prevent valves such as carburetors from freezing, an electric heater or an engine cooling water passage has been provided around the valves to heat them from the outside.

この機構は複雑であり形状も大型となり、また間接的に
保温するため温度調整も不正確になりやすく、エンジン
の停止等を完全に防止することは困難である。
This mechanism is complicated and large in size, and since it indirectly retains heat, temperature adjustment tends to be inaccurate, making it difficult to completely prevent engine stoppage.

そこで本発明はこのような不都合を解消し、単純かつ小
型で正確な作動の得られる加熱機構を内蔵した弁を実現
することを目的とするものである。
SUMMARY OF THE INVENTION An object of the present invention is to eliminate such inconveniences and to realize a valve having a built-in heating mechanism that is simple, compact, and capable of accurate operation.

問題点を解決するための手段 すなわち、本発明は弁体に通電することにより発熱する
発熱部材を設け、この発熱により氷結を防止するように
したエンジンの吸気路用弁である。
Means for solving the problem, that is, the present invention is an engine intake passage valve that is provided with a heat generating member that generates heat by energizing the valve body, and prevents freezing by this heat generation.

作用 この弁では氷結が最も発生しやすい弁体に発熱部材を設
けているため、加熱が直接的で効率が高くなり簡略化小
型化が図られる。
Function: In this valve, the heat-generating member is provided on the valve body where icing is most likely to occur, so that heating is direct, efficiency is high, and the valve can be simplified and miniaturized.

実施例 以下本発明を図示する実施例について具体的に説明する
EXAMPLES Below, examples illustrating the present invention will be specifically described.

第1図はエンジンの吸気路用弁10を示し、気化器のパ
イプ状吸気路11に円盤状の弁体12を取付け、この弁
体12を回動させて吸気路11を開閉するものである。
FIG. 1 shows an engine intake passage valve 10, in which a disc-shaped valve body 12 is attached to a pipe-shaped intake passage 11 of a carburetor, and this valve body 12 is rotated to open and close the intake passage 11. .

この弁体12の周囲部分の面内には、正温度特性抵抗素
子(PTC素子)よりなる発熱部材13が埋設され、回
転軸14の一端から伸びる電線15と他端から制御スイ
ッチ16を経て伸びる電線17との間に通電することに
より、発熱する。この制御スイッチ16は、回転軸14
に取付けられた回転板18の周端の接点板19をリード
板20で接触するものであり、弁体12の回転角に応じ
てオン・オフ作動し、弁10の開度が小さいときのみオ
ンとなるよう設定されている。
A heat generating member 13 made of a positive temperature characteristic resistance element (PTC element) is embedded in the plane of the peripheral portion of the valve body 12, and an electric wire 15 extends from one end of the rotating shaft 14 and a control switch 16 extends from the other end. When electricity is applied between the electric wire 17 and the electric wire 17, heat is generated. This control switch 16 is connected to the rotating shaft 14
The reed plate 20 contacts the contact plate 19 at the peripheral end of the rotary plate 18 attached to the rotary plate 18, and turns on and off according to the rotation angle of the valve body 12, and turns on only when the opening degree of the valve 10 is small. It is set to be.

したがってこの弁1oは電線15.17に電源を接続し
て使用すると、弁の開度が小さく、弁体12の周端部の
狭い間隙を空気流が高速で流れ氷結が発生しやすい状態
のとき、制御スイッチ16がオンとなり、発熱部材13
が発熱し、最も氷結しやすい弁体12の周囲部分を加熱
する。
Therefore, when this valve 1o is used with a power supply connected to the electric wire 15.17, the opening degree of the valve is small and the airflow flows at high speed through the narrow gap at the peripheral end of the valve body 12, which is likely to cause icing. , the control switch 16 is turned on, and the heat generating member 13
generates heat and heats the area around the valve body 12 that is most likely to freeze.

第3図は他の吸気路用弁の弁体20を示す。この弁体2
0は、前記弁体12と同様にして使用されるものであり
、周端にニクロム線等の熱線よりなる発熱部材21が埋
設され、この発熱部材21は、回転軸22に沿って引き
出される電線23.24を通して電流を流すと発熱する
。なおこの例では制御スイッチを有していない。
FIG. 3 shows a valve body 20 of another intake passage valve. This valve body 2
0 is used in the same manner as the valve body 12 described above, and a heat generating member 21 made of a hot wire such as a nichrome wire is embedded in the peripheral end, and this heat generating member 21 is an electric wire drawn out along the rotating shaft 22. 23. When a current is passed through 24, it generates heat. Note that this example does not have a control switch.

したがってこの弁体20を用いた弁では、通電により常
に加熱が行なわれ、氷結が防止される。
Therefore, in a valve using this valve body 20, heating is always performed by electricity supply, and freezing is prevented.

上記例ではいずれも発熱部材を氷結が発生しやすい弁体
の周囲部分に設けているが、周囲部分以外の弁体の中央
部等に発熱部材を設けても十分効果的に氷結防止をする
ことができる。また弁体自体をチタン酸バリウム合金等
の発熱体で形成し、弁体全体を発熱部材とすることもで
きる。なお”発熱部材を弁体に取付けるに当り、弁体な
合成樹脂等の絶縁体で形成しておくと、構造が簡略化さ
れ好都合である。
In all of the above examples, the heat-generating member is provided around the valve body where icing is likely to occur, but icing can be prevented effectively even if the heat-generating member is installed in the center of the valve body other than the surrounding area. I can do it. Further, the valve body itself may be formed of a heat generating element such as a barium titanate alloy, and the entire valve body may be used as a heat generating member. Note that when attaching the heat generating member to the valve body, it is convenient to make the valve body of an insulating material such as synthetic resin to simplify the structure.

発熱部材としては、正温度特性抵抗素子、熱線等任意の
ものを使用することができる。正温度特性抵抗素子を用
いると、その特性から空気 1温度、流量によらず常に
一定温度に加熱するこ :とができるので便利である。
As the heat generating member, any one such as a positive temperature characteristic resistance element, a heating wire, etc. can be used. Using a positive temperature characteristic resistance element is convenient because its characteristics allow the air to be heated to a constant temperature regardless of the flow rate.

熱線を使用する場合は、空気温度等に応じて発熱量を調
節する温度調節装置を併用することが望ましい。
When using a hot wire, it is desirable to use a temperature control device that adjusts the amount of heat generated depending on the air temperature, etc.

上記吸気路用弁10に示した制御スイッチは、加熱を必
要厳小眼に抑えるために有効であるが、本発明において
必須ではなく、使用状況に応じ適宜設置されるべきもの
である。
Although the control switch shown in the intake passage valve 10 is effective for keeping heating to a minimum level, it is not essential to the present invention and should be installed as appropriate depending on the usage situation.

発明の効果 本発明は上述のようVζエンジンの吸気路用弁の弁体に
発熱部材を設け、弁体な直接加熱し、氷結を防止するも
のであるから、加熱が効率的であり、小型の発熱部材を
用いるだけでよく、構造が単純で、外形寸法の大型化を
招来することもない。また温度調節装置と併用する場合
には、加熱が直接的であることから、正確な温度調節が
実現される。
Effects of the Invention As described above, the present invention provides a heat-generating member on the valve element of the intake passage valve of the Vζ engine, and directly heats the valve element to prevent icing. Therefore, heating is efficient and a small-sized It is only necessary to use a heat generating member, the structure is simple, and the external dimensions do not increase. Furthermore, when used in conjunction with a temperature control device, accurate temperature control is achieved because heating is direct.

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

第1図は本発明の一実施例を一部破断して示す軒視図、
郷2図(ま同側の弁体な示す斜視図、第3gは他の実施
例の弁体な示す斜視図である。 10・・・・・・エンジンの吸気路用弁、  12・・
・・・・弁体、13・・・・・・発熱部材、  16・
・・・・・制御スイッチ、  20・・・・・・弁体、
 21 ・・・・−発熱部材。
FIG. 1 is a partially cutaway eaves view showing an embodiment of the present invention;
Figure 2 (Fig. 3g is a perspective view showing the valve body on the same side; Figure 3g is a perspective view showing the valve body of another embodiment. 10... Engine intake path valve; 12...
... Valve body, 13 ... Heat generating member, 16.
... Control switch, 20 ... Valve body,
21...--heat generating member.

Claims (1)

【特許請求の範囲】 1、弁体に通電することにより発熱する発熱部材を設け
、この発熱により氷結を防止するようにしたエンジンの
吸気路用弁。 2、弁体の周囲部分に発熱部材を設けた特許請求の範囲
第1項記載のエンジンの吸気路用弁。 3、弁体全体を発熱部材で形成した特許請求の範囲第1
項記載のエンジンの吸気路用弁。 4、弁の開度が小さいときのみ発熱部材に通電させる制
御スイッチを有する特許請求の範囲第1項、第2項また
は第3項記載のエンジンの吸気路用弁。 5、発熱部材として正温度特性抵抗素子を用いる特許請
求の範囲第1項、第2項、第3項または第4項記載のエ
ンジンの吸気路用弁。
[Scope of Claims] 1. A valve for an engine intake passage, which is provided with a heat-generating member that generates heat by energizing the valve body, and prevents freezing by the heat generated. 2. The engine intake passage valve according to claim 1, wherein a heat generating member is provided around the valve body. 3. Claim 1 in which the entire valve body is formed of a heat-generating member
Valve for the intake passage of the engine described in Section 2. 4. The engine intake passage valve according to claim 1, 2, or 3, which has a control switch that energizes the heat generating member only when the opening degree of the valve is small. 5. An intake passage valve for an engine according to claim 1, 2, 3, or 4, in which a positive temperature characteristic resistance element is used as the heat generating member.
JP61281458A 1986-11-26 1986-11-26 Valve for intake passage of engine Pending JPS63134826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61281458A JPS63134826A (en) 1986-11-26 1986-11-26 Valve for intake passage of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61281458A JPS63134826A (en) 1986-11-26 1986-11-26 Valve for intake passage of engine

Publications (1)

Publication Number Publication Date
JPS63134826A true JPS63134826A (en) 1988-06-07

Family

ID=17639461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61281458A Pending JPS63134826A (en) 1986-11-26 1986-11-26 Valve for intake passage of engine

Country Status (1)

Country Link
JP (1) JPS63134826A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998023857A1 (en) * 1996-11-26 1998-06-04 Daimlerchrysler Ag Heatable device
EP1096129A2 (en) * 1999-11-01 2001-05-02 Siemens Canada Limited Throttle position sensor that heats throttle shaft
US8371328B2 (en) 2007-11-27 2013-02-12 GM Global Technology Operations LLC Back pressure valve with inductively heated flap

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582339B2 (en) * 1976-10-09 1983-01-17 株式会社世田谷製作所 Valve opening device in gas safety device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582339B2 (en) * 1976-10-09 1983-01-17 株式会社世田谷製作所 Valve opening device in gas safety device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998023857A1 (en) * 1996-11-26 1998-06-04 Daimlerchrysler Ag Heatable device
EP1096129A2 (en) * 1999-11-01 2001-05-02 Siemens Canada Limited Throttle position sensor that heats throttle shaft
EP1096129A3 (en) * 1999-11-01 2002-07-17 Siemens Canada Limited Throttle position sensor that heats throttle shaft
US6467468B1 (en) 1999-11-01 2002-10-22 Siemens Vdo Automotive Inc. Throttle position sensor that heats the throttle shaft
US8371328B2 (en) 2007-11-27 2013-02-12 GM Global Technology Operations LLC Back pressure valve with inductively heated flap
DE102008058716B4 (en) * 2007-11-27 2013-02-28 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Back pressure valve with inductively heated flap
US8783278B2 (en) 2007-11-27 2014-07-22 GM Global Technology Operations LLC Back pressure valve with inductively heated flap

Similar Documents

Publication Publication Date Title
US3806854A (en) Control for automotive choke
US3699937A (en) Solid state controlled automatic choke
US4027848A (en) Thermally controlled fluid flow regulating or shut-off valves
JPS5944500B2 (en) State-sensitive control device
US4038955A (en) Automatic choke systems for carburetors
CA1044968A (en) Carburetor automatic choke construction
US3972311A (en) Electronic choke control
JPS63134826A (en) Valve for intake passage of engine
US4081499A (en) Carburetor with electric heating type autochoke device
JPS6010177B2 (en) Choke control device for internal combustion engine
US4096837A (en) Automatic choking device of electric heating type
JPH0773958A (en) Heating device
CA1178190A (en) Burner for the combustion of liquid fuels in the gaseous state
JP2008063959A (en) Throttle device
US3763837A (en) Automatic choke control
US4331615A (en) Fuel supply system with automatic choke
US4699738A (en) Electrically heated choke having improved control
KR940010662B1 (en) Humidifier using ptc heater
US4237078A (en) Carburetor choke control
KR940007846Y1 (en) Mounting device ptc material in humidifier
CA1046365A (en) Condition responsive control device
JPS6221731Y2 (en)
JPS6123854A (en) Choke valve controller
JPS6246845Y2 (en)
KR950005656Y1 (en) Resistor for fan motor