JPH0442268U

JPH0442268U -

Info

Publication number: JPH0442268U
Application number: JP8472990U
Authority: JP
Priority date: 1990-08-10
Filing date: 1990-08-10
Publication date: 1992-04-09
Anticipated expiration: 2005-08-10
Also published as: JP2512858Y2

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
弁装置の作用を説明するための拡大斜視図、第２
図はその燃料圧力制御弁装置を示す縦断面図、第
３図は第２図の−線に沿う拡大部分断面図で
ある。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、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……スプリング、３３……
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）、４
０……段部、４１……コイルスプリング。 FIG. 1 is an enlarged perspective view for explaining the operation of a fuel pressure control valve device that is an embodiment of the present invention, and FIG.
The figure is a longitudinal sectional view showing the fuel pressure control valve device, and FIG. 3 is an enlarged partial sectional view taken along the line - in FIG. 2. FIG. 4 and FIG. 5 are an enlarged partial sectional view and a partially cut away enlarged partial perspective view showing a modified example of the auxiliary fuel passage, respectively. 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...Spring, 33...
Pole, 34...Fuel passage for sphere guide, 35...
...Valve seat, 36, 37...Fuel discharge passage, 38...
...Spherical body, 39,39A...Vertical groove (auxiliary fuel passage)
, 39B...Spiral groove (auxiliary fuel passage), 4
0...Step part, 41...Coil spring.

Claims

[Scope of claim for utility model registration] The case that constitutes the fuel chamber and pressure chamber, the fuel inlet and fuel outlet opened on the fuel chamber side of the case, and the pressure chamber opened on the pressure chamber side of the case A diaphragm is stretched between the 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 the side, a pole provided at the fuel discharge port of the case so as to constitute a fuel passage for guiding fuel in the fuel chamber to the fuel discharge port, and a pole disposed between the pole and the armature. A fuel pressure control valve device comprising a sphere that opens and closes a fuel passage of a pole as the pole moves, the fuel passage of the pole being opened slightly larger than the diameter of the sphere to allow sliding of the sphere. A valve seat is formed to have a smaller diameter than the diameter of the spherical guide fuel passage, and is formed to prevent fuel from flowing out by contacting the spherical body. It is equipped with a fuel discharge passage established to guide fuel from the valve seat 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 passage, and a coil spring 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, and the auxiliary fuel The passage is formed with an extension line of the passage shifted from the center so that a swirling flow is generated by the fuel flowing through the passage, and the coil spring is wound along the direction of the swirling flow of the fuel. A fuel pressure control valve device characterized by: