JP2020034054A5

JP2020034054A5 -

Info

Publication number: JP2020034054A5
Application number: JP2018159607A
Authority: JP
Filing date: 2018-08-28
Publication date: 2021-08-26
Anticipated expiration: 2038-08-28

Description

開示された流体制御弁の一つは、液体である作動流体が流通する内部通路（５２０）を有するハウジング（５２）と、弁座部（５６０ｂ；５６６ｂ；１５６０ｂ）から離間して作動流体の流通を許可する開弁状態と閉弁状態とに切り換えるように内部通路を開閉し、開弁する方向に作動流体の圧力が作用する弁部（５５０ｂ；５５２ｂ；１５５０ｂ）と、
一部に弁部を有し、弁部の表面に研磨処理または切削処理が施されていない、プレス加工、鍛造、圧造、面押し、転造、鋳造のいずれかまたは組み合わせによって弁部とともに形成されたプランジャ（５５；１５５；２５５；３５５）と、通電時にプランジャを軸方向に駆動する磁気力を発生するコイル部（５４０）と、通電時にプランジャとともに磁気回路を形成し、弁座部を一部に備えて、弁部と接触する弁座部の表面に研磨処理または切削処理が施されていない、プレス加工、鍛造、圧造、面押し、転造、鋳造のいずれかまたは組み合わせによって形成されたヨーク（５６；１５６；２５６）と、を備える。 One of the disclosed fluid control valves is a housing (52) having an internal passage (520) through which a liquid working fluid flows, and a working fluid flow separated from a valve seat portion (560b; 566b; 1560b). A valve portion (550b; 552b; 1550b) in which the pressure of the working fluid acts in the direction of opening and closing the internal passage so as to switch between the valve open state and the valve closed state.
Part have a valve portion, polishing or cutting treatment on the surface of the valve portion is not performed, pressing, forging, forging, pressing surface, rolling, is formed together with the valve unit, any or a combination of casting A magnetic circuit is formed together with the plunger (55; 155; 255; 355), a coil portion (540) that generates a magnetic force that drives the plunger in the axial direction when energized, and a part of the valve seat portion when energized. A yoke formed by stamping, forging, forging, face pressing, rolling, casting, or a combination of stamping, forging, heading, surface pressing, and casting, where the surface of the valve seat that comes into contact with the valve is not polished or cut. (56; 156; 256).

開示された流体制御弁の一つは、液体である作動流体が流通する内部通路（５２０）を有するハウジング（５２）と、弁座部（５６０ｂ；５６６ｂ；１５６０ｂ）から離間して作動流体の流通を許可する開弁状態と閉弁状態とに切り換えるように内部通路を開閉し、開弁する方向に作動流体の圧力が作用する弁部（５５０ｂ；５５２ｂ；１５５０ｂ）と、一部に弁部を有し弁部とともに形成されて、軸方向に駆動されるプランジャ（５５；１５５；２５５；３５５）と、通電時にプランジャを軸方向に駆動する磁気力を発生するコイル部（５４０）と、弁部に対して軸方向に対向する位置に弁座部を備えて、通電時にプランジャとともに磁気回路を形成するヨーク（５６；１５６；２５６）と、プランジャとヨークとの間を磁束が通る磁気経路である第１経路（５６５，５５２；５５１，５６１；５５２，５６３ａ）と、第１経路とは異なる部位においてプランジャとヨークとの間を磁束が通る磁気経路である第２経路（５５０，５６０；５５２，５６４；５５２，５６６；１５５０，１５６０）と、を備え、開弁状態における通電開始時は第１経路の方が第２経路よりも磁束が大きくなる磁気経路を形成し、通電中である閉弁状態では第２経路の方が第１経路よりも磁束が大きくなる磁気経路を形成する。 One of the disclosed fluid control valves is a housing (52) having an internal passage (520) through which a working fluid that is a liquid flows, and a flow of the working fluid separated from a valve seat portion (560b; 566b; 1560b). The internal passage is opened and closed so as to switch between the valve open state and the valve closed state, and the valve portion (550b; 552b; 1550b) on which the pressure of the working fluid acts in the valve opening direction and the valve portion are partially provided. Yes and valve portion is formed with a plunger that is driven in the axial direction (55; 155; 255 355), a coil unit for generating a magnetic force to drive the plunger in the axial direction when energized with (540), the valve unit It is a magnetic path through which magnetic flux passes between a yoke (56; 156; 256) that is provided with a valve seat portion at a position facing the axial direction and forms a magnetic circuit together with a plunger when energized. The first path (565,552; 551,561; 552,563a) and the second path (550,560; 552), which is a magnetic path through which magnetic flux passes between the plunger and the yoke at a site different from the first path. 564; 552, 566; 1550, 1560), and when energization is started in the valve open state, the first path forms a magnetic path in which the magnetic flux is larger than the second path , and the valve is closed while energized. In the state, the second path forms a magnetic path in which the magnetic flux is larger than that of the first path.

Claims

A housing (52) having an internal passage (520) through which a working fluid, which is a liquid, flows, and
The internal passage is opened and closed so as to switch between a valve open state and a valve closed state that allow the flow of the working fluid away from the valve seat portion (560b; 566b; 1560b), and the working fluid is opened in the direction of opening the valve. The valve portion (550b; 552b; 1550b) on which pressure acts and
Possess the valve portion in a part, a polishing process or a cutting treatment on the surface of the valve portion is not performed, pressing, forging, forging, pressing surface, rolling, wherein the valve portion by any or a combination of casting With the plunger (55; 155; 255; 355) formed with
A coil unit (540) that generates a magnetic force that drives the plunger in the axial direction when energized.
A magnetic circuit is formed together with the plunger at the time of energization, the valve seat portion is partially provided, and the surface of the valve seat portion in contact with the valve portion is not subjected to polishing or cutting treatment, press working, With a yoke (56; 156; 256) formed by any or combination of forging, forging, face pressing, rolling, casting, and
A fluid control valve equipped with.

A first path (565, 552; 551, 561; 552, 563a), which is a magnetic path through which magnetic flux passes between the plunger and the yoke, and
A second path (550,560; 552,564; 552,566; 1550,1560), which is a magnetic path through which magnetic flux passes between the plunger and the yoke at a site different from the first path,
With
At the start of energization in the valve open state, the first path forms a magnetic path in which the magnetic flux is larger than that of the second path , and in the valve closed state during energization, the second path is the second path. The fluid control valve according to claim 1, wherein a magnetic path having a magnetic flux larger than that of one path is formed.

A housing (52) having an internal passage (520) through which a working fluid, which is a liquid, flows, and
The internal passage is opened and closed so as to switch between a valve open state and a valve closed state that allow the flow of the working fluid away from the valve seat portion (560b; 566b; 1560b), and the working fluid is opened in the direction of opening the valve. The valve portion (550b; 552b; 1550b) on which pressure acts and
And (355 55; 155; 255), is to have the said valve portion in a part formed with the valve unit, the plunger is driven in the axial direction
A coil unit (540) that generates a magnetic force that drives the plunger in the axial direction when energized.
A yoke (56; 156; 256), which is provided with the valve seat portion at a position facing the valve portion in the axial direction and forms a magnetic circuit together with the plunger when energized.
A first path (565, 552; 551, 561; 552, 563a), which is a magnetic path through which magnetic flux passes between the plunger and the yoke, and
A second path (550,560; 552,564; 552,566; 1550,1560), which is a magnetic path through which magnetic flux passes between the plunger and the yoke at a site different from the first path,
With
At the start of energization in the valve open state, the first path forms a magnetic path in which the magnetic flux is larger than that of the second path , and in the valve closed state during energization, the second path is the second path. A fluid control valve that forms a magnetic path in which the magnetic flux is larger than one path.