JPH01125862U

JPH01125862U -

Info

Publication number: JPH01125862U
Application number: JP2228388U
Authority: JP
Priority date: 1988-02-22
Filing date: 1988-02-22
Publication date: 1989-08-28
Anticipated expiration: 2003-02-22
Also published as: JP2518481Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例である燃料圧力制御
弁装置を示す第２図の―線に沿う拡大部分断
面図、第２図はその燃料圧力制御弁装置を示す縦
断面図、第３図はその作用を説明するための拡大
部分断面図、第４図および第５図は補助燃料通路
の変形例をそれぞれ示す拡大部分断面図および一
部切断拡大部分斜視図、第６図は従来例を示す要
部断面図である。２０……プレツシヤレギユレータ（燃料圧力制
御弁装置）、２１……燃料室、２２……圧力室、
２３……ケース、２４……燃料導入口、２５……
燃料排出口、２６，２７，２９……パイプ、２８
……圧力導入口、３０……アーマチユア、３１…
…ダイヤフラム、３２，４４……スプリング、３
３……ポール、３４……球体ガイド用燃料通路、
３５……弁座、３６，３７……燃料排出用通路、
３８……球体、３９，３９Ａ……縦溝（補助燃料
通路）、３９Ｂ……スパイラル溝（補助燃料通路
）、４０……段部、４１……スプリング。 1 is an enlarged partial sectional view taken along the line - in FIG. 2 showing a fuel pressure control valve device which is an embodiment of the present invention; FIG. 2 is a vertical sectional view showing the fuel pressure control valve device; 4 and 5 are enlarged partial sectional views and partially cutaway enlarged partial perspective views showing modified examples of the auxiliary fuel passage, respectively. FIG. 6 is a conventional example. FIG. 20... Pressure regulator (fuel pressure control valve device), 21... Fuel chamber, 22... Pressure chamber,
23... Case, 24... Fuel inlet, 25...
Fuel outlet, 26, 27, 29...pipe, 28
……Pressure inlet, 30… Armature, 31…
...Diaphragm, 32, 44...Spring, 3
3...Pole, 34...Fuel passage for sphere guide,
35... Valve seat, 36, 37... Fuel discharge passage,
38... Sphere, 39, 39A... Vertical groove (auxiliary fuel passage), 39B... Spiral groove (auxiliary fuel passage), 40... Step portion, 41... Spring.

Claims

[Scope of claim for utility model registration] 1. A case constituting a fuel chamber and a pressure chamber, a fuel inlet and a fuel outlet opened on the fuel chamber side of the case, and a fuel outlet opened on the pressure chamber side of the case. A diaphragm is installed between the pressure inlet, the fuel chamber and the pressure chamber so as to divide the inside of the case into two chambers, an armature is supported by the diaphragm and inserted into the fuel chamber, and the armature is connected to the fuel chamber. A spring member biasing toward the chamber side, a pole provided at the fuel outlet of the case so as to configure a fuel passage for guiding fuel in the fuel chamber to the fuel outlet, and disposed between the pole and the armature, In a fuel pressure control valve device comprising a sphere that opens and closes a fuel passage in a pole as the armature moves, the fuel passage in the pole is opened slightly larger than the diameter of the sphere to allow sliding of the sphere. a spherical guide fuel passage; a valve seat formed to have a diameter smaller than the diameter of the passage; and a valve seat formed to prevent fuel from flowing out by abutting with the spherical body; It is equipped with a fuel discharge passage established to guide fuel from the fuel to the fuel discharge port of the case, and an auxiliary fuel passage established on the wall of the sphere guide fuel passage. A sphere is slidably inserted into the fuel discharge passage, and an elastic member is disposed in the fuel discharge passage to apply a biasing force to the sphere to keep the sphere and the armature in constant contact with each other. A fuel pressure control valve device characterized in that the extension line of the passage is offset from the center so that a swirling flow is generated by the fuel flowing through the passage. 2. A request for registration of a utility model characterized in that the auxiliary fuel passage is constituted by a vertical groove cut into the open end of the pole, and the vertical groove is formed so that its radial extension line is offset from the center. The fuel pressure control valve device according to item 1. 3. The fuel pressure control valve device according to claim 1, wherein the auxiliary fuel passage is constituted by a spiral groove cut into the inner peripheral surface of the pole.