JPS63108554U - - Google Patents
Info
- Publication number
- JPS63108554U JPS63108554U JP20370886U JP20370886U JPS63108554U JP S63108554 U JPS63108554 U JP S63108554U JP 20370886 U JP20370886 U JP 20370886U JP 20370886 U JP20370886 U JP 20370886U JP S63108554 U JPS63108554 U JP S63108554U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- opening
- pressure chamber
- rod
- closing
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 2
Landscapes
- Means For Warming Up And Starting Carburetors (AREA)
Description
図面は本考案の実施例を示し、第１図は一部切
欠正面図、第２図及び第３図は作用状態を示す図
である。
１……気化器、２……チヨーク弁、３……スロ
ツトル弁、４……チヨーク弁の弁軸、５……カム
板、６……円弧状長溝孔、７……アクチエータ、
８……圧力室、９……ダイヤフラム、１０……ロ
ツド、１１……閉弁用ばね、１２……温度切換弁
、１８，１９……負圧伝達通路。
The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view, and FIGS. 2 and 3 are views showing the operating state. DESCRIPTION OF SYMBOLS 1... Carburizer, 2... Chiyork valve, 3... Throttle valve, 4... Valve shaft of chiyork valve, 5... Cam plate, 6... Arc-shaped long slot, 7... Actuator,
8... Pressure chamber, 9... Diaphragm, 10... Rod, 11... Valve closing spring, 12... Temperature switching valve, 18, 19... Negative pressure transmission passage.
Claims (1)
に付勢する閉弁用ばねを備えたチヨーク弁におけ
る弁軸にカム板を固着し、該カム板に、前記弁軸
を中心とする円弧状の長溝孔を設ける一方、圧力
作動式アクチエータにおけるダイヤフラムに連結
したロツドを前記円弧状長溝孔に摺動自在に係合
し、前記アクチエータにおける圧力室を、スロツ
トル弁より下流側に、当該圧力室に負圧が作用す
るとロツドがチヨーク弁を開く方向に後退動する
ように負圧伝達通路を介して接続し、該負圧伝達
通路に、内燃機関の温度が低いとき前記圧力室を
大気に連通し、内燃機関の温度が高くなると前記
圧力室に負圧を作用するように切換わる温度切換
弁を設けて成るチヨーク弁の開閉装置において、
前記カム板における円弧状長溝孔の円周方向の長
さを、チヨーク弁の開閉角度に対応する円周長さ
よりも短い値に設定する一方、前記アクチエータ
にそのロツドを突出する方向に付勢するように設
けた閉弁用ばねのばね力を、前記チヨーク弁に対
する開弁用ばねのばね力よりも大きい値に設定し
たことを特徴とするチヨーク弁の開閉装置。 A cam plate is fixed to the valve shaft of a valve that is manually operated to open and close and is equipped with a valve-closing spring that always biases the valve in the opening direction. A rod connected to a diaphragm in a pressure-operated actuator is slidably engaged with the arcuate long slot, and a pressure chamber in the actuator is connected to the pressure chamber downstream of the throttle valve. The rod is connected via a negative pressure transmission passage so that the rod moves backward in the direction of opening the choke valve when negative pressure is applied, and the pressure chamber is connected to the atmosphere when the temperature of the internal combustion engine is low. , an opening/closing device for a chiyoke valve comprising a temperature switching valve that switches to apply negative pressure to the pressure chamber when the temperature of the internal combustion engine increases,
The circumferential length of the arc-shaped long slot in the cam plate is set to a value shorter than the circumferential length corresponding to the opening/closing angle of the choke valve, and the actuator is urged in a direction to project its rod. An opening/closing device for a check valve, characterized in that the spring force of the valve closing spring provided as above is set to a larger value than the spring force of the valve opening spring for the check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20370886U JPH0452463Y2 (en) | 1986-12-31 | 1986-12-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20370886U JPH0452463Y2 (en) | 1986-12-31 | 1986-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63108554U true JPS63108554U (en) | 1988-07-13 |
| JPH0452463Y2 JPH0452463Y2 (en) | 1992-12-09 |
Family
ID=31169294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20370886U Expired JPH0452463Y2 (en) | 1986-12-31 | 1986-12-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0452463Y2 (en) |
-
1986
- 1986-12-31 JP JP20370886U patent/JPH0452463Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0452463Y2 (en) | 1992-12-09 |
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