JPH03108849U - - Google Patents
Info
- Publication number
- JPH03108849U JPH03108849U JP1788190U JP1788190U JPH03108849U JP H03108849 U JPH03108849 U JP H03108849U JP 1788190 U JP1788190 U JP 1788190U JP 1788190 U JP1788190 U JP 1788190U JP H03108849 U JPH03108849 U JP H03108849U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- passage
- suction
- pressure chamber
- lily
- 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
- 241000234435 Lilium Species 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
第１図は本考案の一実施例が適用される気化器
の断面図、第２図はリーク通路の効果を示すエン
ジン回転数と吸入管負圧との関係特性図である。
１……気化器ボデイー、２……吸入通路、３…
…固定ベンチユリ、４……チヨークバルブ、５…
…スロツトルバルブ、６……燃料槽、７……メー
ンジエツト、８……メーンノズル、９……サクシ
ヨンピストン、１０……ピストンホルダ、１１…
…ダイヤフラム、１２……負圧室、１３……大気
通路、１４……大気圧室、１５……リターンスプ
リング、１６……サクシヨン通路、１７……パワ
ーノズル、１８……ジエツトニードル、１９……
パワージエツト、２０……負圧応動弁、２１……
リーク通路、２２……ダイヤフラム、２３……負
圧室、２４……負圧通路、２５……リターンスプ
リング、２６……リークオリフイス、２７……サ
クシヨンオリフイス。
FIG. 1 is a sectional view of a carburetor to which an embodiment of the present invention is applied, and FIG. 2 is a characteristic diagram showing the relationship between engine speed and suction pipe negative pressure, showing the effect of a leak passage. 1... Carburetor body, 2... Suction passage, 3...
...Fixed bench lily, 4...Chiyoke valve, 5...
...Throttle valve, 6...Fuel tank, 7...Main jet, 8...Main nozzle, 9...Suction piston, 10...Piston holder, 11...
...Diaphragm, 12... Negative pressure chamber, 13... Atmospheric passage, 14... Atmospheric pressure chamber, 15... Return spring, 16... Suction passage, 17... Power nozzle, 18... Jet needle, 19... …
Power jet, 20... Negative pressure responsive valve, 21...
Leak passage, 22... diaphragm, 23... negative pressure chamber, 24... negative pressure passage, 25... return spring, 26... leak orifice, 27... suction orifice.
Claims (1)
持されたサクシヨンピストンと、上記負圧室にベ
ンチユリ負圧を導くサクシヨン通路とを備え、負
圧室内のベンチユリ負圧に応じたサクシヨンピス
トンの作動によりベンチユリ通路幅が可変に構成
される気化器の可変ベンチユリ装置において、 スロツトルバルブ下流の吸入管負圧が所定値を
超えると開動作する負圧応動弁と、この負圧応動
弁を介して上記負圧室を大気にリークするリーク
通路とを設け、このリーク通路および上記サクシ
ヨン通路にそれぞれオリフイスを介設してなる気
化器の可変ベンチユリ装置。[Claims for Utility Model Registration] A suction piston supported by a diaphragm that partitions a negative pressure chamber and an atmospheric pressure chamber, and a suction passage that guides a bench lily negative pressure into the negative pressure chamber, In a variable vent lily device for a carburetor, in which the width of the vent lily passage is variable by the operation of a suction piston according to the pressure, a negative pressure responsive valve that opens when the suction pipe negative pressure downstream of the throttle valve exceeds a predetermined value is used. and a leak passage for leaking the negative pressure chamber to the atmosphere via the negative pressure responsive valve, and an orifice is interposed in each of the leak passage and the suction passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1788190U JPH03108849U (en) | 1990-02-23 | 1990-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1788190U JPH03108849U (en) | 1990-02-23 | 1990-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03108849U true JPH03108849U (en) | 1991-11-08 |
Family
ID=31521056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1788190U Pending JPH03108849U (en) | 1990-02-23 | 1990-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03108849U (en) |
-
1990
- 1990-02-23 JP JP1788190U patent/JPH03108849U/ja active Pending