JPH0176545U

JPH0176545U -

Info

Publication number: JPH0176545U
Application number: JP1987171453U
Authority: JP
Priority date: 1987-11-10
Filing date: 1987-11-10
Publication date: 1989-05-24

Description

[Brief explanation of the drawing]

添付の図は本考案によるセカンダリスロー燃料
装置を備えたツーバレル型気化器の一つの実施例
をその要部について示す概略構成図である。１０……気化器のボデイ、２０……プライマリ
ボア、２２……プライマリラージベンチユリ、２
４……プライマリスモールベンチユリ、２６……
プライマリスロツトルバルブ、２８……プライマ
リメイン燃料ノズル、３０……セカンダリボア、
３２……セカンダリラージベンチユリ、３４……
セカンダリスモールベンチユリ、３６……セカン
ダリスロツトルバルブ、３８……セカンダリメイ
ン燃料ノズル、４０……スロツトルレバー、４２
……ダイヤフラム装置、４４……ダイヤフラム室
、４６……圧縮コイルばね、４８……通路、５０
……プライマリベンチユリ負圧取出しポート、５
２……セカンダリベンチユリ負圧取出しポート、
５４……クツシヨンジエツト、５６……セカンダ
リ燃料ウエル、５８……燃料通路、６０……フロ
ート室、６２……セカンダリスローポート、６４
……セカンダリ燃料通路、６６……セカンダリス
ロージエツト、６８……セカンダリスローエアブ
リード、７０……開閉弁要素、７２……ダイヤフ
ラム装置、７４……ダイヤフラム室、７６……圧
縮コイルばね、７８……通路、８０……感温弁、
８１……大気ポート、８２……通路。 The attached figure is a schematic diagram showing the main parts of one embodiment of a two-barrel carburetor equipped with a secondary slow fuel device according to the present invention. 10... Carburetor body, 20... Primary bore, 22... Primary large bench lily, 2
4...Primary small bench lily, 26...
Primary throttle valve, 28...Primary main fuel nozzle, 30...Secondary bore,
32...Secondary large bench lily, 34...
Secondary small bench lily, 36... Secondary throttle valve, 38... Secondary main fuel nozzle, 40... Throttle lever, 42
... diaphragm device, 44 ... diaphragm chamber, 46 ... compression coil spring, 48 ... passage, 50
...Primary bench lily negative pressure outlet port, 5
2...Secondary bench lily negative pressure outlet port,
54...Cushion jet, 56...Secondary fuel well, 58...Fuel passage, 60...Float chamber, 62...Secondary low port, 64
...Secondary fuel passage, 66...Secondary slow jet, 68...Secondary slow air bleed, 70...Opening/closing valve element, 72...Diaphragm device, 74...Diaphragm chamber, 76...Compression coil spring, 78... ...Aisle, 80...Temperature-sensitive valve,
81... Atmospheric port, 82... Passage.

Claims

[Claims for Utility Model Registration] A secondary slow port that opens into a secondary bore on the downstream side of a secondary throttle valve in a fully closed position, and an on-off valve that opens and closes the secondary slow port, the on-off valve A secondary slow fuel system for a two-barrel carburetor, characterized in that the valve is opened prior to the opening of a secondary throttle valve. (2) In the secondary slow fuel device for a two-barrel carburetor as defined in claim 1 of the utility model registration claim,
The secondary throttle valve is configured to open when the vent valve negative pressure is greater than a predetermined value, and the opening/closing valve is driven by a vent valve negative pressure actuated diaphragm device, and the diaphragm device A secondary slow fuel device characterized in that it is configured to be driven to open a valve by.