KR20170057994A - Solenoid Valve Having Pilot Valve - Google Patents

Solenoid Valve Having Pilot Valve Download PDF

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Publication number
KR20170057994A
KR20170057994A KR1020150161595A KR20150161595A KR20170057994A KR 20170057994 A KR20170057994 A KR 20170057994A KR 1020150161595 A KR1020150161595 A KR 1020150161595A KR 20150161595 A KR20150161595 A KR 20150161595A KR 20170057994 A KR20170057994 A KR 20170057994A
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KR
South Korea
Prior art keywords
flow path
spool
solenoid valve
hollow portion
flange
Prior art date
Application number
KR1020150161595A
Other languages
Korean (ko)
Other versions
KR101854413B1 (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 KR1020150161595A priority Critical patent/KR101854413B1/en
Publication of KR20170057994A publication Critical patent/KR20170057994A/en
Application granted granted Critical
Publication of KR101854413B1 publication Critical patent/KR101854413B1/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
    • F16K3/22—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
    • 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
    • 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
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F16K3/26—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 with fluid passages in the valve member
    • 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
    • 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
    • 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
    • F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins

Abstract

The present invention relates to a solenoid valve to control engine oil sprayed to an engine piston and, more specifically, relates to a solenoid valve having a pilot valve which is mounted in an engine cylinder block to control engine oil sprayed to a piston. As the solenoid valve electronically controls an oil amount to be in an optimum level before driving a vehicle, engine performance is improved, and a decline in durability of an engine can be prevented when driving a vehicle in a state in which engine oil is excessive or deficient.

Description

A solenoid valve including a pilot valve (Solenoid Valve Having Pilot Valve)

The present invention relates to a solenoid valve for controlling engine oil injected into an engine piston, and more particularly, to a solenoid valve including a pilot valve mounted on an engine cylinder block for controlling engine oil injected into a piston .

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 pilot valve mounted on an engine cylinder block to control engine oil injected into a piston so that the engine can be driven in an optimal state.

The solenoid valve including the pilot 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 spool is located in the first hollow portion of the flange. The spool includes a second flow path formed in the longitudinal direction of the second hollow portion so as to communicate with the second hollow portion at the other end. Further, the spool has a plurality of third flow path portions on the outer peripheral surface. The spool has a flow path groove formed at the other end thereof.

The feedback groove is located in the spool. The feedback groove protrudes in a radial direction surrounding the spool on the outer peripheral surface of the spool so that the fluid introduced through the second flow passage pushes the spool.

The stopper is located on the inner circumferential surface of the first hollow portion, and restricts the movement of the spool.

The ball is located at the other end of the second hollow portion and is seated in the second flow path portion. When the power is applied, the ball pushes the rod by the armature and the ball is pushed by the rod to open the second flow path.

The elastic member is positioned between the stopper and the spool. One end of a radially protruding portion of the housing is coupled to 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.

The rod is positioned in the through-hole of the core, and one end is formed with a projection to push out the ball.

The armature is positioned on the inner peripheral surface of the core, and a plurality of third hollow portions are formed in the longitudinal direction.

The bobbin is positioned on the outer circumferential surface of the core, and the coil is wound on the outer circumferential surface.

According to an embodiment, the flange is formed with a first groove surrounding the outer circumferential surface. Further, the flange further includes a first sealer in the first groove to prevent fluid from flowing out.

The core is engaged with the inner peripheral surface of the flange. The core further comprises a second sealer defining a second groove surrounding the outer circumferential surface and coupled to the second groove such that fluid is not introduced into the coil. The flange may have a filter coupling groove formed on an outer circumferential surface on which the first flow path portion is formed.

The core further has a third groove formed at the other end, and further includes a third sealer which is coupled to surround the third groove. The third sealer functions to seal fluid from the armature drive to the coil.

And the diameter of the second flow path portion is smaller than that of the second hollow portion. The second flow path portion is formed to be smaller than the second hollow portion, so that the ball can be seated on one end of the second flow path portion.

 According to the solenoid valve including the pilot valve, the engine performance is improved by electronically adjusting the amount of oil to be supplied to the optimum level before the vehicle is driven, and the life of the engine is reduced due to running of the vehicle in the state where the engine oil is excessive or insufficient. There is an effect of preventing the occurrence of the problem.

1 is a cross-sectional view of a solenoid valve including a pilot valve.
2 is a view showing a direction in which a fluid flows when a solenoid valve including a pilot valve is in an OFF state.
3 is a view showing the direction in which the fluid flows when the solenoid valve including the pilot valve is in the ON state.

Hereinafter, a solenoid valve having a ball check 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 including a pilot valve. Will be described with reference to Fig.

A solenoid valve including a pilot valve 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 with a first groove 700 surrounding the outer circumferential surface. In addition, the flange 100 further includes a first sealer 710 in the first groove 700 to prevent fluid from flowing out. The flange 100 may have a filter coupling groove 130 formed on the outer circumferential surface of the first flow path portion 120. The filter coupling groove 130 may be provided with a filter 115 surrounding the first flow path portion 120.

The spool 200 is located in the first hollow portion 110 of the flange 100. The spool 200 includes a second hollow portion 210 and a second hollow portion 210 formed in the longitudinal direction of the second hollow portion 210 to allow the second hollow portion 210 to communicate with the outside of the spool 200 220). The diameter of the second flow path portion 220 is smaller than that of the second hollow portion 210. The second flow path 220 is formed to be smaller than the second hollow portion 210 so that the ball 230 can be seated on one end of the second flow path portion 220.

In addition, the spool 200 has a plurality of third flow paths 250 on the outer circumferential surface. The spool (200) may be formed with a passage groove (205) in the radial direction at the other end so as to be connected to the second passage portion (220).

The fluid introduced from the second flow path portion 220 is transferred to the feedback groove 240 through the flow path groove 205. The feedback groove 240 formed in the spool 200 surrounds the spool 200 in the radial direction on the outer circumferential surface of the spool 200 so that the fluid introduced through the second flow path 220 presses the spool 200, . The feedback groove 240 may be formed at a portion where the outer diameter of the spool 200 is small and the large diameter portion having a large outer diameter is located as shown in the drawing.

The stopper 300 is formed on the inner circumferential surface of the first hollow portion 110 and limits the movement of the spool 200 to prevent the spool 200 from coming out of the flange 100. The inner circumferential surface of the portion where the stopper 300 is formed may be smaller in diameter than the inner circumferential surface of the flange 100.

The ball 230 is positioned at the other end of the second hollow portion 210 and is seated in the second flow path portion 220. The ball 230 is in a state in which the second flow path portion 220 is closed when the power is off.

The elastic member 410 is positioned between the stopper 300 and the spool 200. The elastic member 410 serves to push the spool 200 toward the other end of the flange 100 when the solenoid valve is turned off.

The housing 500 is coupled at one end to a radially projecting portion of the other end of the flange 100. The housing 500 includes a bobbin 550, a coil 560, a core 510, an armature 540, a rod 530, a connector insertion portion 600, a terminal 610, and a bracket 920.

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 has a through hole at the center thereof.

The rod 530 is positioned in the through hole of the core 510 and the protrusion 535 is formed at one end to push the ball 230 out.

The armature 540 is positioned on the inner circumferential surface of the core 520 and a plurality of third hollow portions 545 are formed in the longitudinal direction. The third hollow portion 545 can facilitate the fluid located at one end of the armature 540 to move to the other end of the armature 540 when the armature 540 is driven.

The bobbin 550 is positioned on the outer circumferential surface of the core 510 and the coil 560 is wound on the outer circumferential surface.

The core 510 is engaged with the inner peripheral surface of the flange 100. The core 510 is formed with a second groove 800 surrounding the outer circumferential surface and is coupled to the second groove 800 so as to prevent the fluid in the flange 100 from flowing into the coil 560 located inside the housing 500. [ And a second sealer 810, A bracket 920 may be provided between the core 510 and the flange 100.

The connector inserting portion 600 includes a terminal 610 and may be installed on one side of the housing 500 to insert the connector.

The third groove 900 further includes a third sealer 910 formed at the other end of the core 510 and coupled to surround the third groove 900. The third sealer 910 serves to seal the fluid in the portion where the armature 540 is driven to prevent the fluid from escaping to the coil 560.

2 is a view showing a direction in which a fluid flows when a solenoid valve including a pilot valve is in an OFF state. 3 is a view showing the direction in which the fluid flows when the solenoid valve including the pilot valve is in the ON state. The principle of operation of the solenoid valve including the pilot valve will be described with reference to FIGS. 2 and 3. FIG.

Referring to FIG. 2, when the solenoid valve is powered off, fluid flows from one end of the flange 100. The fluid introduced from the one end of the flange 100 passes through the second hollow portion 210 of the spool 200 and exits to the third flow path portion 250 formed on the outer peripheral surface of the spool 200 (see FIG. The third flow path unit 250 is formed on the outer circumferential surface of the spool 200 as the first flow path unit 120 formed on the outer circumferential surface of the flange 100. In a state in which the third flow path unit 250 is slightly shifted as shown in FIG. (250) may be connected to the first flow path portion (120). Accordingly, the fluid introduced from the flange 100 is discharged through the third flow path portion 250 and the first flow path portion 120.

When the solenoid valve is in the ON state, the armature 540 pushes the rod 530 out as shown in FIG. 3, and the rod 530 pushes the ball 230 to open the second flow path 220. The fluid flowing through the second flow path 220 moves the spool 200 while the fluid pressure acts on the feedback groove 240 formed on the outer peripheral surface of the spool 200 and one end of the core 510 See B). The spool 200 is moved to one end of the flange 100 and thus the third flow path portion 250 is formed on the inner peripheral surface P of the flange 100 on which the first flow path portion 120 is not formed, The fluid moves to the third flow path portion 250 but does not escape to the first flow path portion 120.

That is, the rod 530 driven through the armature 540 pushes the ball 230 to open the second flow path portion 220 to move the spool 200, (120) can be closed. Therefore, since the solenoid valve having the feedback function of the spool 200 is capable of moving the spool 200 with a small force to push the balls 230, it is possible to improve the response and reduce power consumption.

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
115: Filter
120:
130: filter coupling groove
200: spool
205: Euro home
210: second hollow portion
220:
230: view
240: Feedback home
250: third flow path portion
300: Stopper
410: elastic member
500: housing
510, 520: core
530: Load
535:
540: Amateur
545: third hollow portion
550: Bobbin
560: Coil
600: connector insertion portion
610: terminal
700: 1st home
710: 1st sealer
800: 2nd home
810: Second sealer
900: Third Home
910: Third sealer
920: Bracket

Claims (7)

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;
A spool for providing a first flow path for fluid communication between one end of the flange and the first flow path portion and providing a second flow path for the fluid to flow through the first end to the first hollow portion;
A feedback groove formed in the outer peripheral surface of the spool so that the fluid introduced into the first hollow through the second flow path pushes the spool toward one end of the flange; And
Opening / closing means for opening / closing the second flow path
And a solenoid valve. The method according to claim 1,
The spool has a second hollow portion that is opened toward one end of the flange and has a second flow path portion formed in the longitudinal direction of the second hollow portion to communicate the inside of the second hollow portion to the outside and a plurality of third flow path portions on the outer peripheral surface, Wherein the solenoid valve is a solenoid valve. 3. The method of claim 2,
The opening / closing means comprises:
A ball located in the second hollow portion of the spool and seated in the second flow path portion; And
A rod that is moved by the armature as power is applied and pushes the ball;
Wherein the solenoid valve comprises a solenoid valve. The method of claim 3,
And the rod includes a protrusion inserted into the second flow path portion to push out the ball. 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,
Wherein the spool has a flow path groove formed at the other end thereof. The method according to claim 1,
A stopper positioned on the inner circumferential surface of the first hollow portion and restricting movement of the spool;
A core having an armature receiving portion;
An armature accommodated in the armature accommodating portion;
A bobbin surrounding the core;
A coil positioned on an outer circumferential surface of the bobbin;
Further comprising a solenoid valve.
KR1020150161595A 2015-11-18 2015-11-18 Solenoid Valve Having Pilot Valve KR101854413B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150161595A KR101854413B1 (en) 2015-11-18 2015-11-18 Solenoid Valve Having Pilot Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150161595A KR101854413B1 (en) 2015-11-18 2015-11-18 Solenoid Valve Having Pilot Valve

Publications (2)

Publication Number Publication Date
KR20170057994A true KR20170057994A (en) 2017-05-26
KR101854413B1 KR101854413B1 (en) 2018-05-03

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KR1020150161595A KR101854413B1 (en) 2015-11-18 2015-11-18 Solenoid Valve Having Pilot Valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220067836A (en) * 2020-11-18 2022-05-25 주식회사 현대케피코 Solenoid valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101188178B1 (en) 2012-08-08 2012-10-09 주식회사 유니크 Pressure control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220067836A (en) * 2020-11-18 2022-05-25 주식회사 현대케피코 Solenoid valve

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Publication number Publication date
KR101854413B1 (en) 2018-05-03

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