JPS6441656U

JPS6441656U -

Info

Publication number: JPS6441656U
Application number: JP13722787U
Authority: JP
Priority date: 1987-09-08
Filing date: 1987-09-08
Publication date: 1989-03-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の概略構成図、第２
図は第１図中の電磁弁の縦断面図、第３図は第２
図中のプランジヤ及びバルブの変形例の側面図、
第４図は従来の燃料蒸発ガス発散防止装置の概略
構成図である。１……ガソリンタンク、２……チエツクバルブ
、３……管路、４……キヤニスタ、５……インテ
ークマニホルド、６……管路、７，７′……電磁
弁、８……制御装置、９……大気導入口、１０…
…バルブ、１１……バルブスプリング、１２……
弁座、１３……フイルタ、２１……ボデイ、２１
ａ……仕切り壁、２１ｂ……円筒形嵌合部、２２
……流入通路室、２３……流出通路室、２４……
弁座、２５……シート部材、２６……シヤフト、
２６ａ……縮径部、２７……テーパ型バルブ、２
７ａ……中心孔、２８……プランジヤ、２９……
ケース、３０……ガイド、３０ａ……円筒形案内
部、３１……バルブスプリング、３２……スプリ
ング、３３……コイル、３４……コイルボビン、
３５……コア、３６……ばね力調整部材、３７…
…カシメ、３８……吸入パイプ、３９……密封輪
、４０……端板、４１……吐出パイプ、４２……
モールド材、４３……コアプレート、４４……端
部、４５……コネクタ、４６……充填材、４７，
４８……Ｏリング、４９……密封輪。 Figure 1 is a schematic diagram of an embodiment of the present invention;
The figure is a vertical cross-sectional view of the solenoid valve in Figure 1, and Figure 3 is a vertical cross-sectional view of the solenoid valve in Figure 2.
A side view of a modified example of the plunger and valve in the figure,
FIG. 4 is a schematic diagram of a conventional fuel evaporative emission prevention device. DESCRIPTION OF SYMBOLS 1...Gasoline tank, 2...Check valve, 3...Pipe line, 4...Canister, 5...Intake manifold, 6...Pipe line, 7, 7'...Solenoid valve, 8...Control device, 9...Air inlet, 10...
...Valve, 11... Valve spring, 12...
Valve seat, 13...Filter, 21...Body, 21
a...Partition wall, 21b...Cylindrical fitting part, 22
...Inflow passage chamber, 23...Outflow passage chamber, 24...
Valve seat, 25... seat member, 26... shaft,
26a...Reduced diameter portion, 27...Tapered valve, 2
7a...center hole, 28...plunger, 29...
Case, 30...Guide, 30a...Cylindrical guide section, 31...Valve spring, 32...Spring, 33...Coil, 34...Coil bobbin,
35...core, 36...spring force adjustment member, 37...
...Caulking, 38...Suction pipe, 39...Sealing ring, 40...End plate, 41...Discharge pipe, 42...
Mold material, 43... Core plate, 44... End, 45... Connector, 46... Filler, 47,
48...O-ring, 49...Sealing ring.

Claims

[Scope of utility model registration request]

A canister communicating with a gasoline tank, a pipe line communicating between the canister and an intake manifold of the engine, a solenoid valve installed in the pipe line to control the flow rate of fuel evaporative gas, and a solenoid valve that senses the driving state of the vehicle. In the fuel evaporative emission prevention device, the control device provides the coil of the solenoid valve with output electricity commensurate with its operating state, and the valve of the solenoid valve is moved to the valve seat by the elastic force of the valve spring when the engine is stopped. When the engine is running, output electricity based on the operating state of the engine is applied to the coil of the electromagnetic valve from the control device to move the valve closer to the valve seat against the elastic force of the valve spring. A fuel evaporative gas emission prevention device is characterized in that the fuel evaporative gas emission prevention device is characterized in that the valve opening is set to the optimum degree according to the operating condition by suctioning in the direction of the fuel.