KR101791040B1 - Solenoid Valve - Google Patents

Solenoid Valve Download PDF

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Publication number
KR101791040B1
KR101791040B1 KR1020150158761A KR20150158761A KR101791040B1 KR 101791040 B1 KR101791040 B1 KR 101791040B1 KR 1020150158761 A KR1020150158761 A KR 1020150158761A KR 20150158761 A KR20150158761 A KR 20150158761A KR 101791040 B1 KR101791040 B1 KR 101791040B1
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KR
South Korea
Prior art keywords
flow path
spool
path portion
hollow portion
fluid
Prior art date
Application number
KR1020150158761A
Other languages
Korean (ko)
Other versions
KR20170055700A (en
Inventor
이민수
강훈철
김나영
이동헌
Original Assignee
주식회사 현대케피코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 현대케피코 filed Critical 주식회사 현대케피코
Priority to KR1020150158761A priority Critical patent/KR101791040B1/en
Publication of KR20170055700A publication Critical patent/KR20170055700A/en
Application granted granted Critical
Publication of KR101791040B1 publication Critical patent/KR101791040B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/048—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0668—Sliding valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The present invention relates to a solenoid valve including a spool feedback structure, and more particularly, to a structure in which one end of a guide is fixed and a second end is coupled to a spool having a hollow portion, To a solenoid valve having a structure in which a spool is moved by a hydraulic pressure difference of a spool.
Accordingly, one end of the hollow portion located inside the spool has a cross-shaped flow path portion, and has an effect of preventing the fluid flowing backward due to the difference in the pressure receiving area of the spool.

Description

[0001] The present invention relates to a solenoid valve,

The present invention relates to a solenoid valve including a spool feedback structure, and more particularly, to a solenoid valve that can be used to control engine oil injected into an engine piston of a vehicle.

An automobile engine is a device that allows a vehicle to run by supplying power to the vehicle. The explosion of the piston causes the components inside the engine to move at a very high speed. Therefore, lubrication is required so that each accessory of the engine is not worn.

Generally, in order to reduce wear, noise, power loss, etc. of frictional contact surfaces between parts moving relative to each other, a highly viscous oil is used in the interior of a mechanical device of an automobile. Particularly, the engine of the automobile has a separate oil tank, and the oil filled in the oil tank is scattered according to the movement of the connecting rod so that the oil is instantly applied to the inner wall of the cylinder and the outer surface of the piston.

The amount of the engine oil plays an important role in maintaining the state of the engine optimally. When the amount of the oil is too small or too large, the engine performance can not be optimized.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

An object of the present invention is to provide a solenoid valve including a spool feedback structure. The solenoid valve includes a structure in which a fluid flowing into a flow path moves a spool due to a difference in pressure receiving area of the spool.

The solenoid valve includes a flange. Both ends of the flange are opened to form the first hollow portion. The first hollow portion has a plurality of first flow path portions communicating with the first hollow portion on the outer peripheral surface.

The flanges are formed at a predetermined interval on the outer circumferential surface, with the plurality of first flow path portions being located at a middle position in the longitudinal direction.

The spool is located in the first hollow portion of the flange. The spool has a second flow path portion formed in the longitudinal direction of one end of the second hollow portion and the second hollow portion. The spool includes a third flow path portion formed at a right angle with the second flow path portion.

One end of the spool is formed with the second hollow portion, and the second hollow portion is formed with one side opened. And the second hollow portion is coupled to the guide rod on one side where the second hollow portion is opened.

And the second flow path is formed on the other side of the second hollow portion. The second flow path portion is formed in the longitudinal direction like the second hollow portion. The second flow path portion may have a smaller diameter than the second hollow portion.

The other end of the second flow path portion is not penetrated to the other end of the spool although the second flow path portion is connected so that one end communicates with the other end of the second hollow portion.

The third flow path portion may be formed in the radial direction of the spool and cross-shaped with the second flow path portion. The third flow path portion is formed to penetrate to the outer peripheral surface of the spool and communicates with the outside of the spool. The fluid flows from the outside of the spool through the third flow path portion and is supplied to the second hollow portion through the second flow path portion.

The guide rod is coupled to the second hollow portion. The inner circumferential surface of the second hollow portion and the outer circumferential surface of the guide rod can slide with respect to each other so that the spool is guided along the outer circumferential surface of the guide rod and is reciprocated linearly. Here, one end face of the guide rod is fixed to the center of the control port.

The control port is located at one end of the flange and a plurality of control port holes are formed at the bottom. The control port is coupled to the groove formed at one end of the inner circumferential surface of the flange. The control port serves to prevent the spool from coming out of the flange.

The housing is located at the other end of the flange.

The core is positioned on the inner circumferential surface of the other end of the first hollow portion of the flange, and a through hole is formed at the center. In the through hole of the core, the rod is positioned, one end of the rod is in contact with the other end of the spool, and the other end is engaged with one end of the armature.

The bobbin is positioned on the outer circumferential surface of the core. A core is formed on the inner peripheral surface of the bobbin, and a coil is disposed on the outer peripheral surface.

The coil is wound on the outer circumference of the bobbin and forms a magnetic field as the power is supplied, and operates the armature.

The flange is formed with a first groove surrounding the outer circumferential surface. The flange further includes a first sealer in the first groove to prevent fluid from flowing out. The first sealer is coupled to the first groove formed by surrounding the flange circumferential surface to prevent the fluid from leaking out of the control chamber.

The core is formed with a second groove surrounding the outer peripheral surface. The core further includes a second sealer coupled to the second groove such that fluid is not introduced into the housing. The second sealer is located in the second groove and seals between the flange and the core. The second sealer serves to prevent fluid in the core from flowing out of the solenoid valve.

The flange is formed with a filter engagement groove on the outer peripheral surface on which the flow path portion is formed, and the filter can be engaged with the filter engagement groove. The fluid flows into the first flow path portion formed in the flange, and impurities may be mixed in the flowing fluid. Therefore, the filter can be coupled to the filter coupling groove while surrounding the first flow path portion.

And the third groove is formed at the other end of the core. The core further comprises a third sealer which surrounds and engages the third groove. The third sealer has the effect of preventing the oil in the core from leaking to the outside of the solenoid valve in the same way as the second sealer.

On the other hand, an elastic means is located between the other end of the spool and one end of the core. The elastic means is compressed as the spool is moved by the pressure of the fluid supplied to the second hollow portion, and pushes the spool as the pressure of the second hollow portion is reduced.

The resilient means may be a coil spring, and the other end of the spool includes a protrusion such that one end of the coil spring is engaged.

One end of the hollow portion located inside the spool is formed with a cross-shaped flow path portion, and the inflowing spool compresses the lower end spring to open the flow path and flow the fluid. That is, the spool is opened only by the inflow pressure of the fluid, so that the solenoid valve can be opened and closed without a separate power supply.

Further, when the oil does not flow, the spool is moved in the direction of the control port from the supply port by the elastic member provided at the lower end of the spool, thereby closing the flow path and preventing the back flow of the fluid.

1 is a cross-sectional view of a solenoid valve.
2 is a view showing a state in which the fluid flows in the first flow path portion before power is applied in the solenoid valve.
3 is a view showing a state in which the fluid does not flow in the first flow path portion of the solenoid valve.
4 is a view showing a state in which the spool closes the first flow path portion after the power supply in the solenoid valve is applied.

Hereinafter, a solenoid valve according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional view of a solenoid valve. Will be described with reference to Fig.

The solenoid valve 10 includes a flange 100. Both ends of the flange 100 are opened to form the first hollow portion 110. The first hollow portion 110 has a plurality of first flow paths 120 formed on the outer circumferential surface thereof to communicate with the first hollow portion 110.

The flange 100 is formed at a predetermined interval on the outer circumferential surface of the plurality of first flow path portions 120, which are located at a middle position in the longitudinal direction.

The spool 200 is located in the first hollow portion 110 of the flange 100. The spool 200 has a second hollow portion 210 and a second flow portion 220 formed at one end of the second hollow portion 210 in the longitudinal direction. The spool 200 includes a third flow path portion 230 formed at a right angle to the second flow path portion 220 and formed in a radial direction.

One end of the spool 200 is formed with a second hollow portion 210, and the second hollow portion 210 is opened with one side. The guide rod 300 is coupled to one side of the second hollow portion 210 which is open.

And the second flow path portion 220 is formed on the other side of the second hollow portion 210. The second flow path portion 220 is formed in the same longitudinal direction as the second hollow portion 210. The second flow path portion 220 may have a smaller diameter than the second hollow portion 210.

The other end of the second flow path portion 220 is connected to the other end of the spool 200 like the second hollow portion 210 although the second flow path portion 220 has one end connected to the other end of the second hollow portion 210 But is not formed through. That is, the second flow path portion 220 is not connected to the portion where the rod 530 contacts the spool 200, and is formed only to the inside of the spool 200.

The third flow path portion 230 may be formed in the radial direction of the spool 200 and may cross the second flow path portion 220 in a cross shape. The third flow path portion 230 communicates with the outer circumferential surface of the spool 200 to supply fluid to the second flow path portion 220 and the second hollow portion 210.

The guide rod 300 is inserted into the second hollow portion 210 and coupled. The guide rod 300 and the spool 200 are relatively linearly movable with respect to each other. That is, the circumferential surface of the second hollow portion 210 of the spool 200 slides along the outer circumferential surface of the guide rod 300, and the spool 200 linearly moves. One end face of the guide rod 300 is fixed to the center of the control port 400.

The control port 400 is located at one end of the flange 100 and has a plurality of control port holes 410 at its bottom. The control port 400 is coupled to a groove formed at one end of the inner circumferential surface of the flange 100. The control port 400 serves to prevent the spool 200 from coming out of the flange 100.

The housing 500 is located at the other end of the flange 100. The housing 500 is fixed while surrounding the other end of the flange 100.

The core 510 is positioned on the inner peripheral surface of the other end of the first hollow portion 110 of the flange 100, and a through hole is formed at the center. A rod 530 is positioned in the through hole of the core 510 and one end of the rod 530 is in contact with the other end of the spool 200 and the other end is engaged with one end of the armature 540. The core 510 is formed with an armature accommodating portion 520 connected to the through hole on the inner circumferential surface of the core 510. According to an embodiment, a bracket 920 may be provided between the flange and the core.

The bobbin 550 is positioned on the outer circumferential surface of the core 510. A core 510 is formed on the inner circumferential surface of the bobbin 550, and a coil 560 is disposed on the outer circumferential surface.

The coil 560 is wound around the outer circumferential surface of the bobbin 550 to form a magnetic field and operate the armature 540.

The elastic member 600 is positioned in the first hollow portion 110 in the form of a coil spring. The elastic member 600 is positioned between the other end of the spool 200 and one end of the core 510 to move the spool 200 to a predetermined position.

The flange 100 is formed with a first groove 700 surrounding the outer circumferential surface. The flange 100 further includes a first sealer 710 in the first groove 700 to prevent fluid from leaking out. The first sealer 710 is coupled to the first groove 700 formed to surround the outer circumferential surface of the flange 100 to prevent fluid from leaking out of the control chamber.

The core 510 is formed with a second groove 800 surrounding the outer circumferential surface. The core further includes a second sealer 810 coupled to the second groove 800 to prevent fluid from entering the second groove 800 into the housing 500. The second sealer 810 is located in the second groove 800 and seals between the flange 100 and the core 510. The second sealer 810 is located in the second groove 800 and seals between the flange 100 and the core 510. The second sealer 810 serves to prevent the fluid inside the core 510 from flowing out of the solenoid valve.

The flange 100 has a filter coupling groove 130 formed at a portion where the first flow path portion 120 is formed and a filter 610 coupled to the filter coupling groove 130. The fluid flows into the first flow path portion 120 formed in the flange 100, and impurities may be mixed in the flowing fluid. Therefore, the filter 610 can be coupled to the filter coupling groove 130 while surrounding the first flow path portion 120.

The core 510 has a third groove 900 formed at the other end thereof. The core 510 further includes a third sealer 910 that surrounds and engages the third groove 900. The third sealer 910 has the effect of preventing the oil in the core 510 from leaking to the outside of the solenoid valve, like the second sealer 810. The other end of the spool 200 includes the protrusion 240 so that one end of the elastic member 600 is engaged. As described above, an elastic member 600, which is a coil spring, is positioned between the core 510 and the spool 200. The elastic member 600 has a diameter larger than that of the rod 530. The protrusion 240 having the same diameter as the inner circumferential surface of the elastic member 600 is formed at the other end of the spool 200 and the elastic member 600 600 are fixed and the elastic member 600 can be prevented from moving.

2 is a view showing a state in which the fluid flows in the first flow path portion before power is applied in the solenoid valve. 3 is a view showing a state in which the fluid does not flow in the first flow path portion of the solenoid valve. 4 is a view showing a state in which the spool closes the first flow path portion after the power supply in the solenoid valve is applied.

 The principle of operation of the solenoid valve according to one embodiment of the present invention will be described with reference to FIGS. 2 to 4. FIG.

Referring to FIG. 2, the solenoid valve 10 is powered off. When the power is off, the solenoid valve will flow in the A direction. The fluid passes through the first flow path part 120 and flows into the third flow path part 230 formed in the spool 200 and the control port hole 410 as shown in FIG. Is moved to the second hollow portion 210 through the second flow path portion 220. That is, the fluid flowing in the direction A fills the second hollow portion 210 and moves the spool 200 to the armature 200 with a stronger force than the elastic force of the elastic member 600 pushing the spool 200 toward the control port 400. [ (540). The pressure of the fluid flowing in the direction A causes the spool 200 to move toward the armature 540 so that the fluid flows to the control port hole 410 without being blocked by the spool 200.

In contrast, when the fluid does not flow in the direction A and thus the fluid pressure does not act on the second hollow part 210, the fluid in the second hollow part 210, as shown in FIG. 3, The spool 200 is moved toward the control port 400 by the elastic force of the elastic member 600. The elastic member 600 pushes the spool 200 toward the control port 400 when the fluid does not flow into the first flow path portion 120 so that the fluid flowing to the control port hole 410 flows again into the first flow path portion 120, (In the B direction).

When the power of the solenoid valve is turned on, the spool 200 is moved by the armature 540 as shown in FIG. 4 to block the first flow path portion 120 and the fluid is no longer flowing. That is, when the power is turned ON, even if the fluid continues to flow in the first flow path portion 120, the spool 200 is moved toward the control port 400 by the armature 540 so that the fluid can no longer flow, Back direction (direction B) toward the portion 120 is also prevented.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: Flange
110: first hollow portion
120:
130: filter coupling groove
200: spool
210: second hollow portion
220:
230: third flow portion
240: protrusion
300: guide rod
400: control port
410: control port hole
500: housing
510: Core
520: Amateur reception section
530: Load
540: Amateur
550: Bobbin
560: Coil
600: elastic member
610: Filter
700: 1st home
710: 1st sealer
800: 2nd home
810: Second sealer
900: Third Home
910: Third sealer
920: Bracket

Claims (9)

A flange having both ends opened to form a first hollow portion and a plurality of first flow path portions communicating with the first hollow portion on an outer peripheral surface;
And a second flow path portion formed in the first hollow portion of the flange and formed in the longitudinal direction at one end of the second hollow portion and the second hollow portion and formed in the radial direction from the second flow path portion, A spool having a communicating third flow path portion;
A guide rod positioned in the second hollow portion;
A control port positioned at one end of the flange and having a plurality of control port holes formed on a bottom surface thereof;
An elastic means for retaining the spool in a compressed state when the fluid is supplied to the control port through the first flow path portion and for providing an elastic force to push the spool toward the control port;
A core having an amateur accommodating portion in the center thereof;
A bobbin surrounding the core;
A coil positioned on an outer circumferential surface of the bobbin;
An armature positioned in the armature accommodating portion of the core and moving as the power is applied to the coil to move the spool;
Wherein the solenoid valve is a solenoid valve. The method according to claim 1,
The elastic means is compressed by the pressure of the fluid when the fluid is supplied to the second hollow portion through the first flow path portion, the third flow path portion, and the second flow path portion, and the pressure of the fluid is reduced And the spool is pushed out while being restored. 3. The method of claim 2,
And the flow path from the first flow path portion to the control port is closed while the spool is moved by the elastic means. The method of claim 3,
Wherein the resilient means includes a coil spring disposed between one end of the core and one end of the spool. The method according to claim 1,
Wherein when the fluid is supplied from the first flow path portion to the control port, the fluid is simultaneously supplied from the first flow path portion to the second hollow portion through the second flow path portion and the third flow path portion, And the resilient means are maintained in a compressed state. The method according to claim 1,
And the flow path from the first flow path portion to the control port is closed by the spool while the spool moves by the armature and the rod as power is applied to the coil. The method according to claim 1,
Wherein the second flow path portion has a smaller diameter than the second hollow portion. The method according to claim 1,
And the second flow path portion and the third flow path portion are formed to be orthogonal to each other. delete
KR1020150158761A 2015-11-12 2015-11-12 Solenoid Valve KR101791040B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150158761A KR101791040B1 (en) 2015-11-12 2015-11-12 Solenoid Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150158761A KR101791040B1 (en) 2015-11-12 2015-11-12 Solenoid Valve

Publications (2)

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KR20170055700A KR20170055700A (en) 2017-05-22
KR101791040B1 true KR101791040B1 (en) 2017-10-27

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Publication number Priority date Publication date Assignee Title
CN117823651B (en) * 2024-03-01 2024-05-17 山东东阀制冷科技有限公司 Anti-leakage two-step opening electromagnetic valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101232435B1 (en) * 2011-10-18 2013-02-12 주식회사 현대케피코 Solenoid valve for auto transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101232435B1 (en) * 2011-10-18 2013-02-12 주식회사 현대케피코 Solenoid valve for auto transmission

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